chore(.editorconfig): ignore formatting for release notes

* chore(deps): bump bubbletea to v2.0.10, drop the uncloud fork

v2.0.10 carries the upstream fix for terminal capability replies leaking into
the shell (charmbracelet/bubbletea#1801). It skips every query that expects a
reply when input is disabled: the startup probe for synchronized output and
Unicode core, clipboard reads, background, foreground and cursor colour
requests, cursor position reports, and terminal version and termcap queries.

That supersedes the unlabs-dev fork, whose patch covered only the startup
probe, so the replace directive goes away and uncloud tracks upstream again.

The bump on its own does not fix the leak. Bubble Tea skips the queries only
when a program declares that it has no input, and nothing in uncloud declares
that yet. Measured: this tree still leaks "^[[?2026;2$y^[[?2027;0$y" under a
PTY harness. The next commit is what makes the spinners declare it.

Refs: #286, charmbracelet/bubbletea#1801

.editorconfig

@@ -18,3 +18,6 @@ indent_size = 4
 [*.sh]
 indent_style = space
 indent_size = 4
+
+[release-notes-*.md]
+max_line_length = off

.gitignore

@@ -44,3 +44,4 @@ node_modules/
 .devcontainer/
 
 .zed/
+research/

AGENTS.md

@@ -196,7 +196,6 @@ uc context use <name>           # Switch context
     - Unit tests alongside source files (`*_test.go`)
     - Integration tests in `test/e2e/`
     - Test fixtures in `test/fixtures/`
-- Use table driven tests whenever possible
 - Use the `testify` library for assertions (e.g., `require.Equal`, `assert.Nil`)
 
 ### Dependencies

README.md

@@ -44,6 +44,8 @@ complexity of Kubernetes.
   [Uncloud DNS](https://github.com/psviderski/uncloud-dns) service.
 * **Automatic HTTPS**: Built-in Caddy reverse proxy handles TLS certificate provisioning and renewal using Let's
   Encrypt.
+* **Cluster storage for TLS certificates**: Native cluster storage for Caddy shares certificates and ACME challenge
+  tokens across machines and coordinates issuance.
 * **Docker-like CLI**: Familiar commands for managing both infrastructure and applications.
 * **Remote management**: Control your entire infrastructure through SSH access to any single machine in the cluster.
 
@@ -166,7 +168,9 @@ $ uc machine init --name oracle-vm ubuntu@152.67.101.197
 ✓ uncloudd binary installed: /usr/local/bin/uncloudd
 ⏳ Downloading uninstall script: https://raw.githubusercontent.com/psviderski/uncloud/refs/heads/main/scripts/uninstall.sh
 ✓ uncloud-uninstall script installed: /usr/local/bin/uncloud-uninstall
+✓ Systemd unit file created: /etc/systemd/system/uncloud.socket
 ✓ Systemd unit file created: /etc/systemd/system/uncloud.service
+Created symlink /etc/systemd/system/sockets.target.wants/uncloud.socket → /etc/systemd/system/uncloud.socket.
 Created symlink /etc/systemd/system/multi-user.target.wants/uncloud.service → /etc/systemd/system/uncloud.service.
 ⏳ Starting Uncloud machine daemon (uncloud.service)...
 ✓ Uncloud machine daemon started.
@@ -208,7 +212,9 @@ $ uc machine add --name hetzner-server root@5.223.45.199
 ✓ uncloudd binary installed: /usr/local/bin/uncloudd
 ⏳ Downloading uninstall script: https://raw.githubusercontent.com/psviderski/uncloud/refs/heads/main/scripts/uninstall.sh
 ✓ uncloud-uninstall script installed: /usr/local/bin/uncloud-uninstall
+✓ Systemd unit file created: /etc/systemd/system/uncloud.socket
 ✓ Systemd unit file created: /etc/systemd/system/uncloud.service
+Created symlink /etc/systemd/system/sockets.target.wants/uncloud.socket → /etc/systemd/system/uncloud.socket.
 Created symlink /etc/systemd/system/multi-user.target.wants/uncloud.service → /etc/systemd/system/uncloud.service.
 ⏳ Starting Uncloud machine daemon (uncloud.service)...
 ✓ Uncloud machine daemon started.
@@ -319,9 +325,9 @@ I'm grateful to the following projects that inspired Uncloud's design and implem
 * [Tailscale](https://tailscale.com/) — for pioneering the vision of decentralised flat mesh networking with an amazing
   user experience that feels like magic.
 * [Talos Linux](https://github.com/siderolabs/talos)
-  and [KubeSpan](https://www.talos.dev/v1.10/talos-guides/network/kubespan/) — for the machine API design using
-  [grpc-proxy](https://github.com/siderolabs/grpc-proxy) and for its elegant approach to secure WireGuard-based overlay
-  networking with zero configuration.
+  and [KubeSpan](https://www.talos.dev/v1.10/talos-guides/network/kubespan/) — for inspiring Uncloud's API routing
+  design with [grpc-proxy](https://github.com/siderolabs/grpc-proxy) and for their elegant approach to secure
+  WireGuard-based overlay networking with zero configuration.
 * [Docker Swarm Classic](https://github.com/docker-archive/classicswarm) and
   [Rancher 1.x](http://rancher-com-website-main-elb-elb-1798790864.us-west-2.elb.amazonaws.com/docs/rancher/v1.6/en/)
   — for showing the power of simplicity and pragmatism in container orchestration and that not every problem needs the

api/pb/caddy.pb.go

@@ -27,10 +27,12 @@ type GetCaddyConfigResponse struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	// The generated Caddyfile content.
+	// The saved Caddyfile content.
 	Caddyfile string `protobuf:"bytes,1,opt,name=caddyfile,proto3" json:"caddyfile,omitempty"`
 	// Timestamp when the config was last modified.
 	ModifiedAt *timestamppb.Timestamp `protobuf:"bytes,2,opt,name=modified_at,json=modifiedAt,proto3" json:"modified_at,omitempty"`
+	// Error from the latest unsuccessful reconciliation attempt.
+	LastReconciliationError string `protobuf:"bytes,3,opt,name=last_reconciliation_error,json=lastReconciliationError,proto3" json:"last_reconciliation_error,omitempty"`
 }
 
 func (x *GetCaddyConfigResponse) Reset() {
@@ -79,6 +81,13 @@ func (x *GetCaddyConfigResponse) GetModifiedAt() *timestamppb.Timestamp {
 	return nil
 }
 
+func (x *GetCaddyConfigResponse) GetLastReconciliationError() string {
+	if x != nil {
+		return x.LastReconciliationError
+	}
+	return ""
+}
+
 var File_api_pb_caddy_proto protoreflect.FileDescriptor
 
 var file_api_pb_caddy_proto_rawDesc = []byte{
@@ -87,22 +96,26 @@ var file_api_pb_caddy_proto_rawDesc = []byte{
 	0x65, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, 0x65, 0x6d, 0x70, 0x74, 0x79,
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+	0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (

api/pb/caddy.proto

@@ -13,8 +13,10 @@ service Caddy {
 }
 
 message GetCaddyConfigResponse {
-  // The generated Caddyfile content.
+  // The saved Caddyfile content.
   string caddyfile = 1;
   // Timestamp when the config was last modified.
   google.protobuf.Timestamp modified_at = 2;
+  // Error from the latest unsuccessful reconciliation attempt.
+  string last_reconciliation_error = 3;
 }

api/pb/caddy_storage.pb.go

@@ -446,6 +446,120 @@ func (x *StatCaddyStorageResponse) GetIsTerminal() bool {
 	return false
 }
 
+type ListCertificatesResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Certificates []*IssuedCertificate `protobuf:"bytes,1,rep,name=certificates,proto3" json:"certificates,omitempty"`
+}
+
+func (x *ListCertificatesResponse) Reset() {
+	*x = ListCertificatesResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_api_pb_caddy_storage_proto_msgTypes[8]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *ListCertificatesResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ListCertificatesResponse) ProtoMessage() {}
+
+func (x *ListCertificatesResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_api_pb_caddy_storage_proto_msgTypes[8]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use ListCertificatesResponse.ProtoReflect.Descriptor instead.
+func (*ListCertificatesResponse) Descriptor() ([]byte, []int) {
+	return file_api_pb_caddy_storage_proto_rawDescGZIP(), []int{8}
+}
+
+func (x *ListCertificatesResponse) GetCertificates() []*IssuedCertificate {
+	if x != nil {
+		return x.Certificates
+	}
+	return nil
+}
+
+type IssuedCertificate struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// Subject Alternative Name (SAN) of the certificate. Caddy doesn't issue certificates with multiple SANs.
+	San string `protobuf:"bytes,1,opt,name=san,proto3" json:"san,omitempty"`
+	// The PEM-encoding of DER-encoded ASN.1 data for the cert or chain, leaf first.
+	Chain []byte `protobuf:"bytes,2,opt,name=chain,proto3" json:"chain,omitempty"`
+	// Any extra information associated with the certificate, usually provided by the issuer implementation.
+	// JSON-encoded, may be absent or null.
+	IssuerData []byte `protobuf:"bytes,3,opt,name=issuer_data,json=issuerData,proto3" json:"issuer_data,omitempty"`
+}
+
+func (x *IssuedCertificate) Reset() {
+	*x = IssuedCertificate{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_api_pb_caddy_storage_proto_msgTypes[9]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *IssuedCertificate) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*IssuedCertificate) ProtoMessage() {}
+
+func (x *IssuedCertificate) ProtoReflect() protoreflect.Message {
+	mi := &file_api_pb_caddy_storage_proto_msgTypes[9]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use IssuedCertificate.ProtoReflect.Descriptor instead.
+func (*IssuedCertificate) Descriptor() ([]byte, []int) {
+	return file_api_pb_caddy_storage_proto_rawDescGZIP(), []int{9}
+}
+
+func (x *IssuedCertificate) GetSan() string {
+	if x != nil {
+		return x.San
+	}
+	return ""
+}
+
+func (x *IssuedCertificate) GetChain() []byte {
+	if x != nil {
+		return x.Chain
+	}
+	return nil
+}
+
+func (x *IssuedCertificate) GetIssuerData() []byte {
+	if x != nil {
+		return x.IssuerData
+	}
+	return nil
+}
+
 var File_api_pb_caddy_storage_proto protoreflect.FileDescriptor
 
 var file_api_pb_caddy_storage_proto_rawDesc = []byte{
@@ -492,32 +606,48 @@ var file_api_pb_caddy_storage_proto_rawDesc = []byte{
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-	0x2f, 0x70, 0x62, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
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+	0x65, 0x12, 0x49, 0x0a, 0x10, 0x4c, 0x69, 0x73, 0x74, 0x43, 0x65, 0x72, 0x74, 0x69, 0x66, 0x69,
+	0x63, 0x61, 0x74, 0x65, 0x73, 0x12, 0x16, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x70,
+	0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2e, 0x45, 0x6d, 0x70, 0x74, 0x79, 0x1a, 0x1d, 0x2e,
+	0x61, 0x70, 0x69, 0x2e, 0x4c, 0x69, 0x73, 0x74, 0x43, 0x65, 0x72, 0x74, 0x69, 0x66, 0x69, 0x63,
+	0x61, 0x74, 0x65, 0x73, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x42, 0x26, 0x5a, 0x24,
+	0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x70, 0x73, 0x76, 0x69, 0x64,
+	0x65, 0x72, 0x73, 0x6b, 0x69, 0x2f, 0x75, 0x6e, 0x63, 0x6c, 0x6f, 0x75, 0x64, 0x2f, 0x61, 0x70,
+	0x69, 0x2f, 0x70, 0x62, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -532,7 +662,7 @@ func file_api_pb_caddy_storage_proto_rawDescGZIP() []byte {
 	return file_api_pb_caddy_storage_proto_rawDescData
 }
 
-var file_api_pb_caddy_storage_proto_msgTypes = make([]protoimpl.MessageInfo, 8)
+var file_api_pb_caddy_storage_proto_msgTypes = make([]protoimpl.MessageInfo, 10)
 var file_api_pb_caddy_storage_proto_goTypes = []any{
 	(*StoreCaddyStorageRequest)(nil),  // 0: api.StoreCaddyStorageRequest
 	(*LoadCaddyStorageRequest)(nil),   // 1: api.LoadCaddyStorageRequest
@@ -542,27 +672,32 @@ var file_api_pb_caddy_storage_proto_goTypes = []any{
 	(*ListCaddyStorageResponse)(nil),  // 5: api.ListCaddyStorageResponse
 	(*StatCaddyStorageRequest)(nil),   // 6: api.StatCaddyStorageRequest
 	(*StatCaddyStorageResponse)(nil),  // 7: api.StatCaddyStorageResponse
-	(*timestamppb.Timestamp)(nil),     // 8: google.protobuf.Timestamp
-	(*emptypb.Empty)(nil),             // 9: google.protobuf.Empty
+	(*ListCertificatesResponse)(nil),  // 8: api.ListCertificatesResponse
+	(*IssuedCertificate)(nil),         // 9: api.IssuedCertificate
+	(*timestamppb.Timestamp)(nil),     // 10: google.protobuf.Timestamp
+	(*emptypb.Empty)(nil),             // 11: google.protobuf.Empty
 }
 var file_api_pb_caddy_storage_proto_depIdxs = []int32{
-	8, // 0: api.LoadCaddyStorageResponse.updated_at:type_name -> google.protobuf.Timestamp
-	8, // 1: api.StatCaddyStorageResponse.updated_at:type_name -> google.protobuf.Timestamp
-	0, // 2: api.CaddyStorage.Store:input_type -> api.StoreCaddyStorageRequest
-	1, // 3: api.CaddyStorage.Load:input_type -> api.LoadCaddyStorageRequest
-	3, // 4: api.CaddyStorage.Delete:input_type -> api.DeleteCaddyStorageRequest
-	4, // 5: api.CaddyStorage.List:input_type -> api.ListCaddyStorageRequest
-	6, // 6: api.CaddyStorage.Stat:input_type -> api.StatCaddyStorageRequest
-	9, // 7: api.CaddyStorage.Store:output_type -> google.protobuf.Empty
-	2, // 8: api.CaddyStorage.Load:output_type -> api.LoadCaddyStorageResponse
-	9, // 9: api.CaddyStorage.Delete:output_type -> google.protobuf.Empty
-	5, // 10: api.CaddyStorage.List:output_type -> api.ListCaddyStorageResponse
-	7, // 11: api.CaddyStorage.Stat:output_type -> api.StatCaddyStorageResponse
-	7, // [7:12] is the sub-list for method output_type
-	2, // [2:7] is the sub-list for method input_type
-	2, // [2:2] is the sub-list for extension type_name
-	2, // [2:2] is the sub-list for extension extendee
-	0, // [0:2] is the sub-list for field type_name
+	10, // 0: api.LoadCaddyStorageResponse.updated_at:type_name -> google.protobuf.Timestamp
+	10, // 1: api.StatCaddyStorageResponse.updated_at:type_name -> google.protobuf.Timestamp
+	9,  // 2: api.ListCertificatesResponse.certificates:type_name -> api.IssuedCertificate
+	0,  // 3: api.CaddyStorage.Store:input_type -> api.StoreCaddyStorageRequest
+	1,  // 4: api.CaddyStorage.Load:input_type -> api.LoadCaddyStorageRequest
+	3,  // 5: api.CaddyStorage.Delete:input_type -> api.DeleteCaddyStorageRequest
+	4,  // 6: api.CaddyStorage.List:input_type -> api.ListCaddyStorageRequest
+	6,  // 7: api.CaddyStorage.Stat:input_type -> api.StatCaddyStorageRequest
+	11, // 8: api.CaddyStorage.ListCertificates:input_type -> google.protobuf.Empty
+	11, // 9: api.CaddyStorage.Store:output_type -> google.protobuf.Empty
+	2,  // 10: api.CaddyStorage.Load:output_type -> api.LoadCaddyStorageResponse
+	11, // 11: api.CaddyStorage.Delete:output_type -> google.protobuf.Empty
+	5,  // 12: api.CaddyStorage.List:output_type -> api.ListCaddyStorageResponse
+	7,  // 13: api.CaddyStorage.Stat:output_type -> api.StatCaddyStorageResponse
+	8,  // 14: api.CaddyStorage.ListCertificates:output_type -> api.ListCertificatesResponse
+	9,  // [9:15] is the sub-list for method output_type
+	3,  // [3:9] is the sub-list for method input_type
+	3,  // [3:3] is the sub-list for extension type_name
+	3,  // [3:3] is the sub-list for extension extendee
+	0,  // [0:3] is the sub-list for field type_name
 }
 
 func init() { file_api_pb_caddy_storage_proto_init() }
@@ -667,6 +802,30 @@ func file_api_pb_caddy_storage_proto_init() {
 				return nil
 			}
 		}
+		file_api_pb_caddy_storage_proto_msgTypes[8].Exporter = func(v any, i int) any {
+			switch v := v.(*ListCertificatesResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_api_pb_caddy_storage_proto_msgTypes[9].Exporter = func(v any, i int) any {
+			switch v := v.(*IssuedCertificate); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
 	}
 	type x struct{}
 	out := protoimpl.TypeBuilder{
@@ -674,7 +833,7 @@ func file_api_pb_caddy_storage_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_api_pb_caddy_storage_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   8,
+			NumMessages:   10,
 			NumExtensions: 0,
 			NumServices:   1,
 		},

api/pb/caddy_storage.proto

@@ -18,6 +18,10 @@ service CaddyStorage {
   rpc Delete(DeleteCaddyStorageRequest) returns (google.protobuf.Empty);
   rpc List(ListCaddyStorageRequest) returns (ListCaddyStorageResponse);
   rpc Stat(StatCaddyStorageRequest) returns (StatCaddyStorageResponse);
+
+  // ListCertificates lists certificates issued by Caddy and stored in the cluster store.
+  // Unreadable entries and invalid resource metadata are skipped. Chains and issuer data are returned as stored.
+  rpc ListCertificates(google.protobuf.Empty) returns (ListCertificatesResponse);
 }
 
 message StoreCaddyStorageRequest {
@@ -57,3 +61,17 @@ message StatCaddyStorageResponse {
   int64 size = 3;
   bool is_terminal = 4;
 }
+
+message ListCertificatesResponse {
+  repeated IssuedCertificate certificates = 1;
+}
+
+message IssuedCertificate {
+  // Subject Alternative Name (SAN) of the certificate. Caddy doesn't issue certificates with multiple SANs.
+  string san = 1;
+  // The PEM-encoding of DER-encoded ASN.1 data for the cert or chain, leaf first.
+  bytes chain = 2;
+  // Any extra information associated with the certificate, usually provided by the issuer implementation.
+  // JSON-encoded, may be absent or null.
+  bytes issuer_data = 3;
+}

api/pb/caddy_storage_grpc.pb.go

@@ -25,6 +25,7 @@ const (
 	CaddyStorage_Delete_FullMethodName           = "/api.CaddyStorage/Delete"
 	CaddyStorage_List_FullMethodName             = "/api.CaddyStorage/List"
 	CaddyStorage_Stat_FullMethodName             = "/api.CaddyStorage/Stat"
+	CaddyStorage_ListCertificates_FullMethodName = "/api.CaddyStorage/ListCertificates"
 )
 
 // CaddyStorageClient is the client API for CaddyStorage service.
@@ -42,6 +43,9 @@ type CaddyStorageClient interface {
 	Delete(ctx context.Context, in *DeleteCaddyStorageRequest, opts ...grpc.CallOption) (*emptypb.Empty, error)
 	List(ctx context.Context, in *ListCaddyStorageRequest, opts ...grpc.CallOption) (*ListCaddyStorageResponse, error)
 	Stat(ctx context.Context, in *StatCaddyStorageRequest, opts ...grpc.CallOption) (*StatCaddyStorageResponse, error)
+	// ListCertificates lists certificates issued by Caddy and stored in the cluster store.
+	// Unreadable entries and invalid resource metadata are skipped. Chains and issuer data are returned as stored.
+	ListCertificates(ctx context.Context, in *emptypb.Empty, opts ...grpc.CallOption) (*ListCertificatesResponse, error)
 }
 
 type caddyStorageClient struct {
@@ -102,6 +106,16 @@ func (c *caddyStorageClient) Stat(ctx context.Context, in *StatCaddyStorageReque
 	return out, nil
 }
 
+func (c *caddyStorageClient) ListCertificates(ctx context.Context, in *emptypb.Empty, opts ...grpc.CallOption) (*ListCertificatesResponse, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(ListCertificatesResponse)
+	err := c.cc.Invoke(ctx, CaddyStorage_ListCertificates_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 // CaddyStorageServer is the server API for CaddyStorage service.
 // All implementations must embed UnimplementedCaddyStorageServer
 // for forward compatibility.
@@ -117,6 +131,9 @@ type CaddyStorageServer interface {
 	Delete(context.Context, *DeleteCaddyStorageRequest) (*emptypb.Empty, error)
 	List(context.Context, *ListCaddyStorageRequest) (*ListCaddyStorageResponse, error)
 	Stat(context.Context, *StatCaddyStorageRequest) (*StatCaddyStorageResponse, error)
+	// ListCertificates lists certificates issued by Caddy and stored in the cluster store.
+	// Unreadable entries and invalid resource metadata are skipped. Chains and issuer data are returned as stored.
+	ListCertificates(context.Context, *emptypb.Empty) (*ListCertificatesResponse, error)
 	mustEmbedUnimplementedCaddyStorageServer()
 }
 
@@ -142,6 +159,9 @@ func (UnimplementedCaddyStorageServer) List(context.Context, *ListCaddyStorageRe
 func (UnimplementedCaddyStorageServer) Stat(context.Context, *StatCaddyStorageRequest) (*StatCaddyStorageResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method Stat not implemented")
 }
+func (UnimplementedCaddyStorageServer) ListCertificates(context.Context, *emptypb.Empty) (*ListCertificatesResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method ListCertificates not implemented")
+}
 func (UnimplementedCaddyStorageServer) mustEmbedUnimplementedCaddyStorageServer() {}
 func (UnimplementedCaddyStorageServer) testEmbeddedByValue()                      {}
 
@@ -253,6 +273,24 @@ func _CaddyStorage_Stat_Handler(srv interface{}, ctx context.Context, dec func(i
 	return interceptor(ctx, in, info, handler)
 }
 
+func _CaddyStorage_ListCertificates_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(emptypb.Empty)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(CaddyStorageServer).ListCertificates(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: CaddyStorage_ListCertificates_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(CaddyStorageServer).ListCertificates(ctx, req.(*emptypb.Empty))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 // CaddyStorage_ServiceDesc is the grpc.ServiceDesc for CaddyStorage service.
 // It's only intended for direct use with grpc.RegisterService,
 // and not to be introspected or modified (even as a copy)
@@ -280,6 +318,10 @@ var CaddyStorage_ServiceDesc = grpc.ServiceDesc{
 			MethodName: "Stat",
 			Handler:    _CaddyStorage_Stat_Handler,
 		},
+		{
+			MethodName: "ListCertificates",
+			Handler:    _CaddyStorage_ListCertificates_Handler,
+		},
 	},
 	Streams:  []grpc.StreamDesc{},
 	Metadata: "api/pb/caddy_storage.proto",

api/pb/cluster.pb.go

@@ -124,7 +124,7 @@ func (x DNSRecord_RecordType) Number() protoreflect.EnumNumber {
 
 // Deprecated: Use DNSRecord_RecordType.Descriptor instead.
 func (DNSRecord_RecordType) EnumDescriptor() ([]byte, []int) {
-	return file_api_pb_cluster_proto_rawDescGZIP(), []int{9, 0}
+	return file_api_pb_cluster_proto_rawDescGZIP(), []int{10, 0}
 }
 
 type AddMachineRequest struct {
@@ -392,6 +392,9 @@ type Domain struct {
 	unknownFields protoimpl.UnknownFields
 
 	Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
+	// Whether the domain is reserved in Uncloud DNS. Older daemons (<0.21) omit this field
+	// and only support reserved domains, so clients should treat absence as true.
+	Reserved *bool `protobuf:"varint,2,opt,name=reserved,proto3,oneof" json:"reserved,omitempty"`
 }
 
 func (x *Domain) Reset() {
@@ -433,6 +436,13 @@ func (x *Domain) GetName() string {
 	return ""
 }
 
+func (x *Domain) GetReserved() bool {
+	if x != nil && x.Reserved != nil {
+		return *x.Reserved
+	}
+	return false
+}
+
 type ReserveDomainRequest struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -480,6 +490,54 @@ func (x *ReserveDomainRequest) GetEndpoint() string {
 	return ""
 }
 
+type SetDomainRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// An externally managed domain name. Empty clears a manually set domain.
+	Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
+}
+
+func (x *SetDomainRequest) Reset() {
+	*x = SetDomainRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_api_pb_cluster_proto_msgTypes[7]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *SetDomainRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*SetDomainRequest) ProtoMessage() {}
+
+func (x *SetDomainRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_api_pb_cluster_proto_msgTypes[7]
+	if protoimpl.UnsafeEnabled && x != nil {
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		if ms.LoadMessageInfo() == nil {
+			ms.StoreMessageInfo(mi)
+		}
+		return ms
+	}
+	return mi.MessageOf(x)
+}
+
+// Deprecated: Use SetDomainRequest.ProtoReflect.Descriptor instead.
+func (*SetDomainRequest) Descriptor() ([]byte, []int) {
+	return file_api_pb_cluster_proto_rawDescGZIP(), []int{7}
+}
+
+func (x *SetDomainRequest) GetName() string {
+	if x != nil {
+		return x.Name
+	}
+	return ""
+}
+
 type CreateDomainRecordsRequest struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -491,7 +549,7 @@ type CreateDomainRecordsRequest struct {
 func (x *CreateDomainRecordsRequest) Reset() {
 	*x = CreateDomainRecordsRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_api_pb_cluster_proto_msgTypes[7]
+		mi := &file_api_pb_cluster_proto_msgTypes[8]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -504,7 +562,7 @@ func (x *CreateDomainRecordsRequest) String() string {
 func (*CreateDomainRecordsRequest) ProtoMessage() {}
 
 func (x *CreateDomainRecordsRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_api_pb_cluster_proto_msgTypes[7]
+	mi := &file_api_pb_cluster_proto_msgTypes[8]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -517,7 +575,7 @@ func (x *CreateDomainRecordsRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use CreateDomainRecordsRequest.ProtoReflect.Descriptor instead.
 func (*CreateDomainRecordsRequest) Descriptor() ([]byte, []int) {
-	return file_api_pb_cluster_proto_rawDescGZIP(), []int{7}
+	return file_api_pb_cluster_proto_rawDescGZIP(), []int{8}
 }
 
 func (x *CreateDomainRecordsRequest) GetRecords() []*DNSRecord {
@@ -538,7 +596,7 @@ type CreateDomainRecordsResponse struct {
 func (x *CreateDomainRecordsResponse) Reset() {
 	*x = CreateDomainRecordsResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_api_pb_cluster_proto_msgTypes[8]
+		mi := &file_api_pb_cluster_proto_msgTypes[9]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -551,7 +609,7 @@ func (x *CreateDomainRecordsResponse) String() string {
 func (*CreateDomainRecordsResponse) ProtoMessage() {}
 
 func (x *CreateDomainRecordsResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_api_pb_cluster_proto_msgTypes[8]
+	mi := &file_api_pb_cluster_proto_msgTypes[9]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -564,7 +622,7 @@ func (x *CreateDomainRecordsResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use CreateDomainRecordsResponse.ProtoReflect.Descriptor instead.
 func (*CreateDomainRecordsResponse) Descriptor() ([]byte, []int) {
-	return file_api_pb_cluster_proto_rawDescGZIP(), []int{8}
+	return file_api_pb_cluster_proto_rawDescGZIP(), []int{9}
 }
 
 func (x *CreateDomainRecordsResponse) GetRecords() []*DNSRecord {
@@ -587,7 +645,7 @@ type DNSRecord struct {
 func (x *DNSRecord) Reset() {
 	*x = DNSRecord{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_api_pb_cluster_proto_msgTypes[9]
+		mi := &file_api_pb_cluster_proto_msgTypes[10]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -600,7 +658,7 @@ func (x *DNSRecord) String() string {
 func (*DNSRecord) ProtoMessage() {}
 
 func (x *DNSRecord) ProtoReflect() protoreflect.Message {
-	mi := &file_api_pb_cluster_proto_msgTypes[9]
+	mi := &file_api_pb_cluster_proto_msgTypes[10]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -613,7 +671,7 @@ func (x *DNSRecord) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use DNSRecord.ProtoReflect.Descriptor instead.
 func (*DNSRecord) Descriptor() ([]byte, []int) {
-	return file_api_pb_cluster_proto_rawDescGZIP(), []int{9}
+	return file_api_pb_cluster_proto_rawDescGZIP(), []int{10}
 }
 
 func (x *DNSRecord) GetName() string {
@@ -676,63 +734,72 @@ var file_api_pb_cluster_proto_rawDesc = []byte{
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-	0x12, 0x30, 0x0a, 0x09, 0x47, 0x65, 0x74, 0x44, 0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x12, 0x16, 0x2e,
-	0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2e,
-	0x45, 0x6d, 0x70, 0x74, 0x79, 0x1a, 0x0b, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x44, 0x6f, 0x6d, 0x61,
-	0x69, 0x6e, 0x12, 0x34, 0x0a, 0x0d, 0x52, 0x65, 0x6c, 0x65, 0x61, 0x73, 0x65, 0x44, 0x6f, 0x6d,
-	0x61, 0x69, 0x6e, 0x12, 0x16, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x70, 0x72, 0x6f,
-	0x74, 0x6f, 0x62, 0x75, 0x66, 0x2e, 0x45, 0x6d, 0x70, 0x74, 0x79, 0x1a, 0x0b, 0x2e, 0x61, 0x70,
-	0x69, 0x2e, 0x44, 0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x12, 0x58, 0x0a, 0x13, 0x43, 0x72, 0x65, 0x61,
-	0x74, 0x65, 0x44, 0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x52, 0x65, 0x63, 0x6f, 0x72, 0x64, 0x73, 0x12,
-	0x1f, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x43, 0x72, 0x65, 0x61, 0x74, 0x65, 0x44, 0x6f, 0x6d, 0x61,
-	0x69, 0x6e, 0x52, 0x65, 0x63, 0x6f, 0x72, 0x64, 0x73, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74,
-	0x1a, 0x20, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x43, 0x72, 0x65, 0x61, 0x74, 0x65, 0x44, 0x6f, 0x6d,
-	0x61, 0x69, 0x6e, 0x52, 0x65, 0x63, 0x6f, 0x72, 0x64, 0x73, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e,
-	0x73, 0x65, 0x42, 0x26, 0x5a, 0x24, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d,
-	0x2f, 0x70, 0x73, 0x76, 0x69, 0x64, 0x65, 0x72, 0x73, 0x6b, 0x69, 0x2f, 0x75, 0x6e, 0x63, 0x6c,
-	0x6f, 0x75, 0x64, 0x2f, 0x61, 0x70, 0x69, 0x2f, 0x70, 0x62, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74,
-	0x6f, 0x33,
+	0x66, 0x2e, 0x45, 0x6d, 0x70, 0x74, 0x79, 0x1a, 0x0b, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x44, 0x6f,
+	0x6d, 0x61, 0x69, 0x6e, 0x12, 0x34, 0x0a, 0x0d, 0x52, 0x65, 0x6c, 0x65, 0x61, 0x73, 0x65, 0x44,
+	0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x12, 0x16, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x70,
+	0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2e, 0x45, 0x6d, 0x70, 0x74, 0x79, 0x1a, 0x0b, 0x2e,
+	0x61, 0x70, 0x69, 0x2e, 0x44, 0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x12, 0x58, 0x0a, 0x13, 0x43, 0x72,
+	0x65, 0x61, 0x74, 0x65, 0x44, 0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x52, 0x65, 0x63, 0x6f, 0x72, 0x64,
+	0x73, 0x12, 0x1f, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x43, 0x72, 0x65, 0x61, 0x74, 0x65, 0x44, 0x6f,
+	0x6d, 0x61, 0x69, 0x6e, 0x52, 0x65, 0x63, 0x6f, 0x72, 0x64, 0x73, 0x52, 0x65, 0x71, 0x75, 0x65,
+	0x73, 0x74, 0x1a, 0x20, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x43, 0x72, 0x65, 0x61, 0x74, 0x65, 0x44,
+	0x6f, 0x6d, 0x61, 0x69, 0x6e, 0x52, 0x65, 0x63, 0x6f, 0x72, 0x64, 0x73, 0x52, 0x65, 0x73, 0x70,
+	0x6f, 0x6e, 0x73, 0x65, 0x42, 0x26, 0x5a, 0x24, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63,
+	0x6f, 0x6d, 0x2f, 0x70, 0x73, 0x76, 0x69, 0x64, 0x65, 0x72, 0x73, 0x6b, 0x69, 0x2f, 0x75, 0x6e,
+	0x63, 0x6c, 0x6f, 0x75, 0x64, 0x2f, 0x61, 0x70, 0x69, 0x2f, 0x70, 0x62, 0x62, 0x06, 0x70, 0x72,
+	0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -748,7 +815,7 @@ func file_api_pb_cluster_proto_rawDescGZIP() []byte {
 }
 
 var file_api_pb_cluster_proto_enumTypes = make([]protoimpl.EnumInfo, 2)
-var file_api_pb_cluster_proto_msgTypes = make([]protoimpl.MessageInfo, 10)
+var file_api_pb_cluster_proto_msgTypes = make([]protoimpl.MessageInfo, 11)
 var file_api_pb_cluster_proto_goTypes = []any{
 	(MachineMember_MembershipState)(0),  // 0: api.MachineMember.MembershipState
 	(DNSRecord_RecordType)(0),           // 1: api.DNSRecord.RecordType
@@ -759,40 +826,43 @@ var file_api_pb_cluster_proto_goTypes = []any{
 	(*RemoveMachineRequest)(nil),        // 6: api.RemoveMachineRequest
 	(*Domain)(nil),                      // 7: api.Domain
 	(*ReserveDomainRequest)(nil),        // 8: api.ReserveDomainRequest
-	(*CreateDomainRecordsRequest)(nil),  // 9: api.CreateDomainRecordsRequest
-	(*CreateDomainRecordsResponse)(nil), // 10: api.CreateDomainRecordsResponse
-	(*DNSRecord)(nil),                   // 11: api.DNSRecord
-	(*NetworkConfig)(nil),               // 12: api.NetworkConfig
-	(*IP)(nil),                          // 13: api.IP
-	(*MachineInfo)(nil),                 // 14: api.MachineInfo
-	(*emptypb.Empty)(nil),               // 15: google.protobuf.Empty
+	(*SetDomainRequest)(nil),            // 9: api.SetDomainRequest
+	(*CreateDomainRecordsRequest)(nil),  // 10: api.CreateDomainRecordsRequest
+	(*CreateDomainRecordsResponse)(nil), // 11: api.CreateDomainRecordsResponse
+	(*DNSRecord)(nil),                   // 12: api.DNSRecord
+	(*NetworkConfig)(nil),               // 13: api.NetworkConfig
+	(*IP)(nil),                          // 14: api.IP
+	(*MachineInfo)(nil),                 // 15: api.MachineInfo
+	(*emptypb.Empty)(nil),               // 16: google.protobuf.Empty
 }
 var file_api_pb_cluster_proto_depIdxs = []int32{
-	12, // 0: api.AddMachineRequest.network:type_name -> api.NetworkConfig
-	13, // 1: api.AddMachineRequest.public_ip:type_name -> api.IP
-	14, // 2: api.AddMachineResponse.machine:type_name -> api.MachineInfo
-	14, // 3: api.MachineMember.machine:type_name -> api.MachineInfo
+	13, // 0: api.AddMachineRequest.network:type_name -> api.NetworkConfig
+	14, // 1: api.AddMachineRequest.public_ip:type_name -> api.IP
+	15, // 2: api.AddMachineResponse.machine:type_name -> api.MachineInfo
+	15, // 3: api.MachineMember.machine:type_name -> api.MachineInfo
 	0,  // 4: api.MachineMember.state:type_name -> api.MachineMember.MembershipState
 	4,  // 5: api.ListMachinesResponse.machines:type_name -> api.MachineMember
-	11, // 6: api.CreateDomainRecordsRequest.records:type_name -> api.DNSRecord
-	11, // 7: api.CreateDomainRecordsResponse.records:type_name -> api.DNSRecord
+	12, // 6: api.CreateDomainRecordsRequest.records:type_name -> api.DNSRecord
+	12, // 7: api.CreateDomainRecordsResponse.records:type_name -> api.DNSRecord
 	1,  // 8: api.DNSRecord.type:type_name -> api.DNSRecord.RecordType
 	2,  // 9: api.Cluster.AddMachine:input_type -> api.AddMachineRequest
-	15, // 10: api.Cluster.ListMachines:input_type -> google.protobuf.Empty
+	16, // 10: api.Cluster.ListMachines:input_type -> google.protobuf.Empty
 	6,  // 11: api.Cluster.RemoveMachine:input_type -> api.RemoveMachineRequest
 	8,  // 12: api.Cluster.ReserveDomain:input_type -> api.ReserveDomainRequest
-	15, // 13: api.Cluster.GetDomain:input_type -> google.protobuf.Empty
-	15, // 14: api.Cluster.ReleaseDomain:input_type -> google.protobuf.Empty
-	9,  // 15: api.Cluster.CreateDomainRecords:input_type -> api.CreateDomainRecordsRequest
-	3,  // 16: api.Cluster.AddMachine:output_type -> api.AddMachineResponse
-	5,  // 17: api.Cluster.ListMachines:output_type -> api.ListMachinesResponse
-	15, // 18: api.Cluster.RemoveMachine:output_type -> google.protobuf.Empty
-	7,  // 19: api.Cluster.ReserveDomain:output_type -> api.Domain
-	7,  // 20: api.Cluster.GetDomain:output_type -> api.Domain
-	7,  // 21: api.Cluster.ReleaseDomain:output_type -> api.Domain
-	10, // 22: api.Cluster.CreateDomainRecords:output_type -> api.CreateDomainRecordsResponse
-	16, // [16:23] is the sub-list for method output_type
-	9,  // [9:16] is the sub-list for method input_type
+	9,  // 13: api.Cluster.SetDomain:input_type -> api.SetDomainRequest
+	16, // 14: api.Cluster.GetDomain:input_type -> google.protobuf.Empty
+	16, // 15: api.Cluster.ReleaseDomain:input_type -> google.protobuf.Empty
+	10, // 16: api.Cluster.CreateDomainRecords:input_type -> api.CreateDomainRecordsRequest
+	3,  // 17: api.Cluster.AddMachine:output_type -> api.AddMachineResponse
+	5,  // 18: api.Cluster.ListMachines:output_type -> api.ListMachinesResponse
+	16, // 19: api.Cluster.RemoveMachine:output_type -> google.protobuf.Empty
+	7,  // 20: api.Cluster.ReserveDomain:output_type -> api.Domain
+	16, // 21: api.Cluster.SetDomain:output_type -> google.protobuf.Empty
+	7,  // 22: api.Cluster.GetDomain:output_type -> api.Domain
+	7,  // 23: api.Cluster.ReleaseDomain:output_type -> api.Domain
+	11, // 24: api.Cluster.CreateDomainRecords:output_type -> api.CreateDomainRecordsResponse
+	17, // [17:25] is the sub-list for method output_type
+	9,  // [9:17] is the sub-list for method input_type
 	9,  // [9:9] is the sub-list for extension type_name
 	9,  // [9:9] is the sub-list for extension extendee
 	0,  // [0:9] is the sub-list for field type_name
@@ -891,7 +961,7 @@ func file_api_pb_cluster_proto_init() {
 			}
 		}
 		file_api_pb_cluster_proto_msgTypes[7].Exporter = func(v any, i int) any {
-			switch v := v.(*CreateDomainRecordsRequest); i {
+			switch v := v.(*SetDomainRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -903,7 +973,7 @@ func file_api_pb_cluster_proto_init() {
 			}
 		}
 		file_api_pb_cluster_proto_msgTypes[8].Exporter = func(v any, i int) any {
-			switch v := v.(*CreateDomainRecordsResponse); i {
+			switch v := v.(*CreateDomainRecordsRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -915,6 +985,18 @@ func file_api_pb_cluster_proto_init() {
 			}
 		}
 		file_api_pb_cluster_proto_msgTypes[9].Exporter = func(v any, i int) any {
+			switch v := v.(*CreateDomainRecordsResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_api_pb_cluster_proto_msgTypes[10].Exporter = func(v any, i int) any {
 			switch v := v.(*DNSRecord); i {
 			case 0:
 				return &v.state
@@ -927,13 +1009,14 @@ func file_api_pb_cluster_proto_init() {
 			}
 		}
 	}
+	file_api_pb_cluster_proto_msgTypes[5].OneofWrappers = []any{}
 	type x struct{}
 	out := protoimpl.TypeBuilder{
 		File: protoimpl.DescBuilder{
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_api_pb_cluster_proto_rawDesc,
 			NumEnums:      2,
-			NumMessages:   10,
+			NumMessages:   11,
 			NumExtensions: 0,
 			NumServices:   1,
 		},

api/pb/cluster.proto

@@ -14,6 +14,7 @@ service Cluster {
   rpc RemoveMachine(RemoveMachineRequest) returns (google.protobuf.Empty);
 
   rpc ReserveDomain(ReserveDomainRequest) returns (Domain);
+  rpc SetDomain(SetDomainRequest) returns (google.protobuf.Empty);
   rpc GetDomain(google.protobuf.Empty) returns (Domain);
   rpc ReleaseDomain(google.protobuf.Empty) returns (Domain);
   rpc CreateDomainRecords(CreateDomainRecordsRequest) returns (CreateDomainRecordsResponse);
@@ -56,12 +57,20 @@ message RemoveMachineRequest {
 
 message Domain {
   string name = 1;
+  // Whether the domain is reserved in Uncloud DNS. Older daemons (<0.21) omit this field
+  // and only support reserved domains, so clients should treat absence as true.
+  optional bool reserved = 2;
 }
 
 message ReserveDomainRequest {
   string endpoint = 1;
 }
 
+message SetDomainRequest {
+  // An externally managed domain name. Empty clears a manually set domain.
+  string name = 1;
+}
+
 message CreateDomainRecordsRequest {
   repeated DNSRecord records = 1;
 }

api/pb/cluster_grpc.pb.go

@@ -24,6 +24,7 @@ const (
 	Cluster_ListMachines_FullMethodName        = "/api.Cluster/ListMachines"
 	Cluster_RemoveMachine_FullMethodName       = "/api.Cluster/RemoveMachine"
 	Cluster_ReserveDomain_FullMethodName       = "/api.Cluster/ReserveDomain"
+	Cluster_SetDomain_FullMethodName           = "/api.Cluster/SetDomain"
 	Cluster_GetDomain_FullMethodName           = "/api.Cluster/GetDomain"
 	Cluster_ReleaseDomain_FullMethodName       = "/api.Cluster/ReleaseDomain"
 	Cluster_CreateDomainRecords_FullMethodName = "/api.Cluster/CreateDomainRecords"
@@ -37,6 +38,7 @@ type ClusterClient interface {
 	ListMachines(ctx context.Context, in *emptypb.Empty, opts ...grpc.CallOption) (*ListMachinesResponse, error)
 	RemoveMachine(ctx context.Context, in *RemoveMachineRequest, opts ...grpc.CallOption) (*emptypb.Empty, error)
 	ReserveDomain(ctx context.Context, in *ReserveDomainRequest, opts ...grpc.CallOption) (*Domain, error)
+	SetDomain(ctx context.Context, in *SetDomainRequest, opts ...grpc.CallOption) (*emptypb.Empty, error)
 	GetDomain(ctx context.Context, in *emptypb.Empty, opts ...grpc.CallOption) (*Domain, error)
 	ReleaseDomain(ctx context.Context, in *emptypb.Empty, opts ...grpc.CallOption) (*Domain, error)
 	CreateDomainRecords(ctx context.Context, in *CreateDomainRecordsRequest, opts ...grpc.CallOption) (*CreateDomainRecordsResponse, error)
@@ -90,6 +92,16 @@ func (c *clusterClient) ReserveDomain(ctx context.Context, in *ReserveDomainRequ
 	return out, nil
 }
 
+func (c *clusterClient) SetDomain(ctx context.Context, in *SetDomainRequest, opts ...grpc.CallOption) (*emptypb.Empty, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(emptypb.Empty)
+	err := c.cc.Invoke(ctx, Cluster_SetDomain_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 func (c *clusterClient) GetDomain(ctx context.Context, in *emptypb.Empty, opts ...grpc.CallOption) (*Domain, error) {
 	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
 	out := new(Domain)
@@ -128,6 +140,7 @@ type ClusterServer interface {
 	ListMachines(context.Context, *emptypb.Empty) (*ListMachinesResponse, error)
 	RemoveMachine(context.Context, *RemoveMachineRequest) (*emptypb.Empty, error)
 	ReserveDomain(context.Context, *ReserveDomainRequest) (*Domain, error)
+	SetDomain(context.Context, *SetDomainRequest) (*emptypb.Empty, error)
 	GetDomain(context.Context, *emptypb.Empty) (*Domain, error)
 	ReleaseDomain(context.Context, *emptypb.Empty) (*Domain, error)
 	CreateDomainRecords(context.Context, *CreateDomainRecordsRequest) (*CreateDomainRecordsResponse, error)
@@ -153,6 +166,9 @@ func (UnimplementedClusterServer) RemoveMachine(context.Context, *RemoveMachineR
 func (UnimplementedClusterServer) ReserveDomain(context.Context, *ReserveDomainRequest) (*Domain, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method ReserveDomain not implemented")
 }
+func (UnimplementedClusterServer) SetDomain(context.Context, *SetDomainRequest) (*emptypb.Empty, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method SetDomain not implemented")
+}
 func (UnimplementedClusterServer) GetDomain(context.Context, *emptypb.Empty) (*Domain, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method GetDomain not implemented")
 }
@@ -255,6 +271,24 @@ func _Cluster_ReserveDomain_Handler(srv interface{}, ctx context.Context, dec fu
 	return interceptor(ctx, in, info, handler)
 }
 
+func _Cluster_SetDomain_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(SetDomainRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(ClusterServer).SetDomain(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: Cluster_SetDomain_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(ClusterServer).SetDomain(ctx, req.(*SetDomainRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 func _Cluster_GetDomain_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
 	in := new(emptypb.Empty)
 	if err := dec(in); err != nil {
@@ -332,6 +366,10 @@ var Cluster_ServiceDesc = grpc.ServiceDesc{
 			MethodName: "ReserveDomain",
 			Handler:    _Cluster_ReserveDomain_Handler,
 		},
+		{
+			MethodName: "SetDomain",
+			Handler:    _Cluster_SetDomain_Handler,
+		},
 		{
 			MethodName: "GetDomain",
 			Handler:    _Cluster_GetDomain_Handler,

api/pb/machine.proto

@@ -20,7 +20,7 @@ service Machine {
   // InspectMachine retrieves detailed information about the machine. Supports broadcasting to multiple machines.
   rpc InspectMachine(google.protobuf.Empty) returns (InspectMachineResponse);
   // WaitForStoreVersion waits until the cluster store on this machine has reached each requested actor version, with
-  // no known missing or pending transactions through those versions.
+  // no known missing or pending transactions through those versions from active members.
   // Corrosion may satisfy a version by applying its surviving changes or by marking it complete because its changes
   // have been superseded.
   //

api/pb/machine_grpc.pb.go

@@ -48,7 +48,7 @@ type MachineClient interface {
 	// InspectMachine retrieves detailed information about the machine. Supports broadcasting to multiple machines.
 	InspectMachine(ctx context.Context, in *emptypb.Empty, opts ...grpc.CallOption) (*InspectMachineResponse, error)
 	// WaitForStoreVersion waits until the cluster store on this machine has reached each requested actor version, with
-	// no known missing or pending transactions through those versions.
+	// no known missing or pending transactions through those versions from active members.
 	// Corrosion may satisfy a version by applying its surviving changes or by marking it complete because its changes
 	// have been superseded.
 	//
@@ -224,7 +224,7 @@ type MachineServer interface {
 	// InspectMachine retrieves detailed information about the machine. Supports broadcasting to multiple machines.
 	InspectMachine(context.Context, *emptypb.Empty) (*InspectMachineResponse, error)
 	// WaitForStoreVersion waits until the cluster store on this machine has reached each requested actor version, with
-	// no known missing or pending transactions through those versions.
+	// no known missing or pending transactions through those versions from active members.
 	// Corrosion may satisfy a version by applying its surviving changes or by marking it complete because its changes
 	// have been superseded.
 	//

caddystorage/locker.go

@@ -1,165 +0,0 @@
-package caddystorage
-
-import (
-	"context"
-	"errors"
-	"fmt"
-	"log/slog"
-	"slices"
-	"time"
-
-	"github.com/psviderski/uncloud/pkg/client"
-	"github.com/psviderski/uncloud/pkg/distlock"
-)
-
-const (
-	lockPrefix              = "caddy_storage:"
-	storeReplicationTimeout = 10 * time.Second
-)
-
-// Lock acquires an automatically renewed distributed lock and waits for the local store to catch up with versions
-// observed on responding machines. Writers using the same lock can then read locally. Unavailable machines may have
-// writes that this wait does not cover, and reads outside a lock remain eventually consistent.
-func (s *Storage) Lock(ctx context.Context, name string) (err error) {
-	if name == "" {
-		return errors.New("lock name is empty")
-	}
-
-	// Count the call first. If Cleanup has already observed zero, Caddy has cancelled s.ctx and the check below rejects
-	// this call before it uses the client.
-	s.lockOps.Add(1)
-	// A failed Lock owns its lifecycle through any lease rollback. A successful Lock transfers that responsibility to
-	// Unlock, which keeps the client open until its release attempt finishes.
-	defer func() {
-		if err != nil {
-			s.lockOps.Add(-1)
-		}
-	}()
-	if s.ctx.Err() != nil {
-		return errors.New("storage is closed")
-	}
-
-	// Stop acquisition retries when Caddy unloads the module (cancels s.ctx), even if the caller's context
-	// is still active.
-	ctx, cancel := context.WithCancelCause(ctx)
-	defer cancel(nil)
-	stopOnCleanup := context.AfterFunc(s.ctx, func() {
-		cancel(context.Cause(s.ctx))
-	})
-	defer stopOnCleanup()
-
-	log := s.log.With("lock", name)
-	started := time.Now()
-	log.Debug("acquiring lock", "ttl", time.Duration(s.LockTTL))
-	lease, err := s.locker.Acquire(ctx, lockPrefix+name)
-	if err != nil {
-		log.Debug("failed to acquire lock", "duration", time.Since(started), "error", err)
-		return fmt.Errorf("acquire lock '%s': %w", name, err)
-	}
-	log.Debug("lock lease acquired", "duration", time.Since(started))
-	// Release the lease if the lock acquisition fails after this point.
-	// Unlock will take care of releasing the lease on success.
-	defer func() {
-		if err == nil {
-			return
-		}
-		if releaseErr := s.releaseLock(ctx, name, lease, "cancelled acquisition"); releaseErr != nil {
-			err = errors.Join(err, releaseErr)
-		}
-	}()
-
-	// Catch up with the latest store versions observed on responding machines to increase the chance of reading
-	// the latest writes on them locally.
-	version, machines, err := s.clusterStoreVersion(ctx, log)
-	if err != nil {
-		return err
-	}
-	waitStarted := time.Now()
-	log.Debug("waiting for local store replication", "machine_names", machines, "store_version", version)
-	waitCtx, cancelWait := context.WithTimeout(ctx, storeReplicationTimeout)
-	err = s.client.WaitForStoreVersion(waitCtx, version)
-	cancelWait()
-	if err != nil {
-		return fmt.Errorf("wait for local store replication: %w", err)
-	}
-	log.Debug("local store replication complete", "duration", time.Since(waitStarted))
-
-	s.locksMu.Lock()
-	defer s.locksMu.Unlock()
-	if s.ctx.Err() != nil {
-		return errors.New("storage is closed")
-	}
-	if lost := context.Cause(lease.Context()); lost != nil {
-		return lost
-	}
-	if _, exists := s.locks[name]; exists {
-		return errors.New("lock is already tracked by this storage instance")
-	}
-	s.locks[name] = lease
-
-	log.Debug("lock acquired", "duration", time.Since(started))
-	return nil
-}
-
-// clusterStoreVersion returns the per-actor maximum store versions from responding machines and their names.
-func (s *Storage) clusterStoreVersion(ctx context.Context, log *slog.Logger) (map[string]uint64, []string, error) {
-	ctx, cancel := context.WithTimeout(ctx, distlock.DefaultMaxNodeCallTimeout)
-	defer cancel()
-	resp, err := s.client.MachineClient.InspectMachine(client.ProxyMachinesContext(ctx, nil), nil)
-	if err != nil {
-		return nil, nil, fmt.Errorf("inspect machines for store versions: %w", err)
-	}
-
-	maxVersion := make(map[string]uint64)
-	machines := make([]string, 0, len(resp.Machines))
-	for _, m := range resp.Machines {
-		if m.Metadata.Error != "" {
-			log.Debug("skipping machine when collecting store versions",
-				"id", m.Metadata.MachineId, "name", m.Metadata.MachineName, "error", m.Metadata.Error)
-			continue
-		}
-		machines = append(machines, m.Metadata.MachineName)
-		for actor, v := range m.StoreVersion {
-			maxVersion[actor] = max(maxVersion[actor], v)
-		}
-	}
-	slices.Sort(machines)
-	return maxVersion, machines, nil
-}
-
-// Unlock releases a previously acquired distributed lock.
-func (s *Storage) Unlock(ctx context.Context, name string) error {
-	s.locksMu.Lock()
-	lease, exists := s.locks[name]
-	if exists {
-		delete(s.locks, name)
-	}
-	s.locksMu.Unlock()
-	if !exists {
-		return fmt.Errorf("lock '%s' is not held by this storage instance", name)
-	}
-	defer s.lockOps.Add(-1)
-
-	// Release stops renewal even on error. Any nodes that cannot be reached will let the lease expire.
-	if err := s.releaseLock(ctx, name, lease, "unlock"); err != nil {
-		return fmt.Errorf("release lock '%s': %w", name, err)
-	}
-
-	return nil
-}
-
-// releaseLock releases the lease with a context that ignores cancellation and logs the release attempt.
-func (s *Storage) releaseLock(ctx context.Context, name string, lease *distlock.Lease, reason string) error {
-	// Unlock and rollback must attempt node cleanup even if the caller or module has already been cancelled.
-	ctx = context.WithoutCancel(ctx)
-
-	log := s.log.With("lock", name, "reason", reason)
-	started := time.Now()
-	log.Debug("releasing lock")
-	if err := lease.Release(ctx); err != nil {
-		log.Debug("failed to release lock", "duration", time.Since(started), "error", err)
-		return err
-	}
-	log.Debug("lock released", "duration", time.Since(started))
-	return nil
-}

caddystorage/module.go

@@ -1,211 +0,0 @@
-// Package caddystorage provides Caddy storage backed by an Uncloud cluster.
-package caddystorage
-
-import (
-	"context"
-	"errors"
-	"fmt"
-	"log/slog"
-	"sync"
-	"sync/atomic"
-	"time"
-
-	"github.com/caddyserver/caddy/v2"
-	"github.com/caddyserver/caddy/v2/caddyconfig/caddyfile"
-	"github.com/caddyserver/certmagic"
-	"github.com/psviderski/uncloud/pkg/client"
-	"github.com/psviderski/uncloud/pkg/client/connector"
-	"github.com/psviderski/uncloud/pkg/distlock"
-)
-
-const (
-	// ModuleID is the Caddy module ID for Uncloud storage.
-	ModuleID = "caddy.storage.uncloud"
-	// DefaultSocketPath is the default path to the Uncloud API socket.
-	DefaultSocketPath = "/run/uncloud/uncloud.sock"
-	// DefaultLockTTL is the default duration of a distributed lock lease.
-	DefaultLockTTL = 20 * time.Second
-	// lockCleanupTimeout bounds how long an unloaded module waits for active lock operations when cleaning up.
-	lockCleanupTimeout = 5 * time.Minute
-)
-
-//nolint:gochecknoinits // Caddy modules must register during package initialisation.
-func init() {
-	caddy.RegisterModule(new(Storage))
-}
-
-// Storage implements a Caddy storage backend that uses an Uncloud cluster to store assets such as TLS certificates.
-type Storage struct {
-	// Socket is the path to the Uncloud API socket.
-	// Defaults to /run/uncloud/uncloud.sock when not set.
-	Socket string `json:"socket,omitempty"`
-	// LockTTL is the duration of a distributed lock after which it expires if not renewed. Locks renew automatically
-	// until unlocked. If an instance crashes or cannot renew, expiry allows another instance to acquire the stale lock.
-	// Longer durations tolerate longer interruptions but delay recovery after a crash. Normal unlocks release the lock
-	// immediately.
-	// Defaults to 20 seconds when not set.
-	LockTTL caddy.Duration `json:"lock_ttl,omitempty"`
-
-	client *client.Client
-	locker *distlock.Locker
-	log    *slog.Logger
-
-	// ctx is the module context from Provision. Caddy cancels it when it unloads the module and calls Cleanup.
-	ctx context.Context
-
-	// locksMu protects locks.
-	locksMu sync.Mutex
-	// locks maps successfully acquired lock names to held leases.
-	locks map[string]*distlock.Lease
-	// lockOps counts Lock calls until they fail or their locks are released.
-	lockOps atomic.Int64
-}
-
-// CaddyModule returns the Caddy module information.
-func (*Storage) CaddyModule() caddy.ModuleInfo {
-	return caddy.ModuleInfo{
-		ID:  ModuleID,
-		New: func() caddy.Module { return new(Storage) },
-	}
-}
-
-// Provision connects the storage to the local Uncloud API and initialises the distributed locker.
-func (s *Storage) Provision(ctx caddy.Context) error {
-	s.ctx = ctx
-	s.log = ctx.Slogger()
-
-	if s.Socket == "" {
-		s.Socket = DefaultSocketPath
-	}
-	if s.LockTTL == 0 {
-		s.LockTTL = caddy.Duration(DefaultLockTTL)
-	}
-	if s.LockTTL < 0 {
-		return errors.New("lock_ttl must be positive")
-	}
-
-	cli, err := client.New(ctx, connector.NewUnixConnector(s.Socket))
-	if err != nil {
-		return fmt.Errorf("connect to Uncloud API: %w", err)
-	}
-
-	locker, err := cli.NewLocker(distlock.Config{
-		LeaseDuration: time.Duration(s.LockTTL),
-	})
-	if err != nil {
-		_ = cli.Close()
-		return fmt.Errorf("create distributed locker: %w", err)
-	}
-
-	s.client = cli
-	s.locker = locker
-	s.locks = make(map[string]*distlock.Lease)
-
-	s.log.Debug("module provisioned", "socket", s.Socket, "lock_ttl", time.Duration(s.LockTTL))
-	return nil
-}
-
-// Cleanup keeps the Uncloud API connection open so acquired lock leases can renew until Caddy releases them. It closes
-// the connection after all lock operations finish or the cleanup timeout expires.
-func (s *Storage) Cleanup() error {
-	if s.client == nil {
-		// Provision failed before opening the storage.
-		return nil
-	}
-
-	started := time.Now()
-	s.log.Debug("cleaning up module", "locks", s.lockOps.Load())
-
-	go func() {
-		timer := time.NewTimer(lockCleanupTimeout)
-		defer timer.Stop()
-		ticker := time.NewTicker(1 * time.Second)
-		defer ticker.Stop()
-
-		timedOut := false
-		for !timedOut && s.lockOps.Load() > 0 {
-			select {
-			case <-ticker.C:
-			case <-timer.C:
-				timedOut = true
-			}
-		}
-		if remaining := s.lockOps.Load(); timedOut && remaining > 0 {
-			s.log.Debug("timed out waiting for active locks to be unlocked",
-				"locks", remaining, "timeout", lockCleanupTimeout)
-		}
-
-		if err := s.client.Close(); err != nil {
-			s.log.Debug("failed to clean up module", "duration", time.Since(started), "error", err)
-			return
-		}
-		s.log.Debug("module cleanup complete", "duration", time.Since(started))
-	}()
-
-	return nil
-}
-
-// CertMagicStorage returns the provisioned CertMagic storage implementation.
-func (s *Storage) CertMagicStorage() (certmagic.Storage, error) {
-	return s, nil
-}
-
-// UnmarshalCaddyfile configures Uncloud storage from the Caddyfile global storage block.
-//
-//	{
-//	    storage uncloud {
-//	        socket /run/uncloud/uncloud.sock
-//	        lock_ttl 20s
-//	    }
-//	}
-func (s *Storage) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
-	d.Next() // Skip the module name 'uncloud'.
-	// Reject inline arguments. NextArg leaves an opening brace for NextBlock.
-	if d.NextArg() {
-		return d.ArgErr()
-	}
-
-	// Read the optional options block, skipping its surrounding braces.
-	for d.NextBlock(0) {
-		switch d.Val() {
-		case "socket":
-			// Require a socket path on the same line as 'socket' option.
-			if !d.NextArg() {
-				return d.ArgErr()
-			}
-			s.Socket = d.Val()
-			// Reject extra arguments after the socket path.
-			if d.NextArg() {
-				return d.ArgErr()
-			}
-		case "lock_ttl":
-			if !d.NextArg() {
-				return d.ArgErr()
-			}
-			ttl, err := caddy.ParseDuration(d.Val())
-			if err != nil {
-				return d.Errf("invalid lock_ttl '%s': %v", d.Val(), err)
-			}
-			if ttl <= 0 {
-				return d.Err("lock_ttl must be positive")
-			}
-			if d.NextArg() {
-				return d.ArgErr()
-			}
-			s.LockTTL = caddy.Duration(ttl)
-		default:
-			return d.Errf("unknown uncloud storage option: '%s'", d.Val())
-		}
-	}
-
-	return nil
-}
-
-var (
-	_ caddy.Module           = (*Storage)(nil)
-	_ caddy.Provisioner      = (*Storage)(nil)
-	_ caddy.CleanerUpper     = (*Storage)(nil)
-	_ caddy.StorageConverter = (*Storage)(nil)
-	_ caddyfile.Unmarshaler  = (*Storage)(nil)
-	_ certmagic.Storage      = (*Storage)(nil)
-)

caddystorage/storage.go

@@ -1,83 +0,0 @@
-package caddystorage
-
-import (
-	"context"
-	"fmt"
-	"io/fs"
-
-	"github.com/caddyserver/certmagic"
-	"github.com/psviderski/uncloud/api/pb"
-	"google.golang.org/grpc/codes"
-	"google.golang.org/grpc/status"
-)
-
-// Store writes a value to the cluster store.
-func (s *Storage) Store(ctx context.Context, key string, value []byte) error {
-	if _, err := s.client.CaddyStorage.Store(ctx, &pb.StoreCaddyStorageRequest{Key: key, Value: value}); err != nil {
-		return storageError("store", key, err)
-	}
-	return nil
-}
-
-// Load reads a value from the cluster store.
-func (s *Storage) Load(ctx context.Context, key string) ([]byte, error) {
-	resp, err := s.client.CaddyStorage.Load(ctx, &pb.LoadCaddyStorageRequest{Key: key})
-	if err != nil {
-		return nil, storageError("load", key, err)
-	}
-	return resp.Value, nil
-}
-
-// Delete removes a key and its descendants from the cluster store.
-func (s *Storage) Delete(ctx context.Context, key string) error {
-	if _, err := s.client.CaddyStorage.Delete(ctx, &pb.DeleteCaddyStorageRequest{Key: key}); err != nil {
-		return storageError("delete", key, err)
-	}
-	return nil
-}
-
-// Exists reports whether a key exists in the cluster store.
-func (s *Storage) Exists(ctx context.Context, key string) bool {
-	_, err := s.Stat(ctx, key)
-	return err == nil
-}
-
-// List returns keys under prefix from the cluster store.
-func (s *Storage) List(ctx context.Context, prefix string, recursive bool) ([]string, error) {
-	resp, err := s.client.CaddyStorage.List(ctx, &pb.ListCaddyStorageRequest{
-		Prefix:    prefix,
-		Recursive: recursive,
-	})
-	if err != nil {
-		return nil, storageError("list", prefix, err)
-	}
-	return resp.Keys, nil
-}
-
-// Stat returns information about a key in the cluster store.
-func (s *Storage) Stat(ctx context.Context, key string) (certmagic.KeyInfo, error) {
-	resp, err := s.client.CaddyStorage.Stat(ctx, &pb.StatCaddyStorageRequest{Key: key})
-	if err != nil {
-		return certmagic.KeyInfo{}, storageError("stat", key, err)
-	}
-
-	info := certmagic.KeyInfo{
-		Key:        resp.Key,
-		Size:       resp.Size,
-		IsTerminal: resp.IsTerminal,
-	}
-	if resp.UpdatedAt != nil {
-		if err := resp.UpdatedAt.CheckValid(); err != nil {
-			return certmagic.KeyInfo{}, storageError("stat", key, fmt.Errorf("invalid updated_at timestamp: %w", err))
-		}
-		info.Modified = resp.UpdatedAt.AsTime()
-	}
-	return info, nil
-}
-
-func storageError(operation, key string, err error) error {
-	if status.Code(err) == codes.NotFound {
-		err = fs.ErrNotExist
-	}
-	return fmt.Errorf("uncloud storage: %s key %q: %w", operation, key, err)
-}

cmd/uc/caddy/cert/ls.go

@@ -0,0 +1,167 @@
+package cert
+
+import (
+	"context"
+	"encoding/hex"
+	"encoding/json"
+	"fmt"
+	"io"
+	"os"
+	"slices"
+	"strings"
+	"time"
+
+	"charm.land/lipgloss/v2"
+	"github.com/caddyserver/certmagic"
+	"github.com/docker/go-units"
+	"github.com/psviderski/uncloud/internal/cli"
+	"github.com/psviderski/uncloud/internal/cli/completion"
+	"github.com/psviderski/uncloud/internal/cli/tui"
+	"github.com/psviderski/uncloud/pkg/api"
+	"github.com/psviderski/uncloud/pkg/client"
+	"github.com/spf13/cobra"
+)
+
+type listOptions struct {
+	machine string
+	output  string
+}
+
+func NewListCommand() *cobra.Command {
+	opts := listOptions{}
+	cmd := &cobra.Command{
+		Use:     "ls",
+		Aliases: []string{"list"},
+		Short:   "List certificates in cluster storage for Caddy.",
+		Long: `List certificates stored in the Uncloud cluster storage for Caddy.
+
+Caddy must use the Uncloud storage module (https://github.com/unlabs-dev/caddy-uncloud)
+configured with 'storage uncloud' in the global options for its certificates to appear here.
+
+This inventory does not check whether Caddy currently serves or trusts a certificate.`,
+		Args: cobra.NoArgs,
+		RunE: func(cmd *cobra.Command, _ []string) error {
+			uncli := cmd.Context().Value("cli").(*cli.CLI)
+			return list(cmd.Context(), uncli, opts)
+		},
+	}
+
+	cmd.Flags().StringVarP(&opts.machine, "machine", "m", "",
+		"Name or ID of the machine to read certificate storage from. (default is connected machine)")
+	cmd.Flags().StringVarP(&opts.output, "output", "o", "",
+		"Output format: 'json' or empty for a human-readable table.")
+	completion.MachinesFlag(cmd)
+
+	return cmd
+}
+
+func list(ctx context.Context, uncli *cli.CLI, opts listOptions) error {
+	if opts.output != "" && opts.output != "json" {
+		return fmt.Errorf("unsupported output format '%s' (supported: json)", opts.output)
+	}
+
+	clusterClient, err := uncli.ConnectCluster(ctx)
+	if err != nil {
+		return fmt.Errorf("connect to cluster: %w", err)
+	}
+	defer clusterClient.Close()
+
+	certs, listErr := clusterClient.Caddy.ListCertificates(ctx,
+		client.CaddyListCertificatesOptions{Machine: opts.machine})
+	if len(certs) > 0 || listErr == nil {
+		if err = printCertificates(os.Stdout, certs, opts.output); err != nil {
+			return fmt.Errorf("print Caddy certificates: %w", err)
+		}
+	}
+	if listErr != nil {
+		if len(certs) > 0 {
+			return fmt.Errorf("certificate list is partial: %w", listErr)
+		}
+		return fmt.Errorf("list Caddy certificates: %w", listErr)
+	}
+
+	return nil
+}
+
+func printCertificates(out io.Writer, certs []api.IssuedCertificate, output string) error {
+	type certificate struct {
+		api.IssuedCertificate
+		Fingerprint string
+	}
+
+	items := make([]certificate, 0, len(certs))
+	for _, cert := range certs {
+		fingerprint := cert.Fingerprint()
+		items = append(items, certificate{
+			IssuedCertificate: cert,
+			Fingerprint:       hex.EncodeToString(fingerprint[:]),
+		})
+	}
+	slices.SortFunc(items, func(a, b certificate) int {
+		if cmp := strings.Compare(a.SAN, b.SAN); cmp != 0 {
+			return cmp
+		}
+		if cmp := a.Chain[0].NotAfter.Compare(b.Chain[0].NotAfter); cmp != 0 {
+			return cmp
+		}
+		return strings.Compare(a.Fingerprint, b.Fingerprint)
+	})
+
+	if output == "json" {
+		encoder := json.NewEncoder(out)
+		encoder.SetIndent("", "  ")
+		if err := encoder.Encode(items); err != nil {
+			return fmt.Errorf("marshal certificates: %w", err)
+		}
+		return nil
+	}
+
+	if len(items) == 0 {
+		_, err := fmt.Fprintln(out, "No Caddy certificates found in cluster storage.")
+		return err
+	}
+
+	t := tui.NewTable()
+	t.Headers("ID", "NAME", "ISSUER", "EXPIRES")
+	for _, item := range items {
+		t.Row(
+			item.Fingerprint[:12],
+			item.SAN,
+			formatIssuer(item.IssuerData),
+			formatExpiry(item.Chain[0].NotAfter),
+		)
+	}
+	_, err := lipgloss.Fprintln(out, t)
+	return err
+}
+
+func formatIssuer(data api.CertificateIssuerData) string {
+	if data.ACME == nil {
+		return "unknown"
+	}
+
+	switch data.ACME.CA {
+	case certmagic.LetsEncryptProductionCA:
+		return "Let's Encrypt"
+	case certmagic.LetsEncryptStagingCA:
+		return "Let's Encrypt (staging)"
+	case certmagic.ZeroSSLProductionCA:
+		return "ZeroSSL"
+	case certmagic.GoogleTrustProductionCA:
+		return "Google Trust Services"
+	case certmagic.GoogleTrustStagingCA:
+		return "Google Trust Services (staging)"
+	default:
+		return data.ACME.CA
+	}
+}
+
+func formatExpiry(expires time.Time) string {
+	delta := expires.Sub(time.Now())
+	if delta <= 0 {
+		return fmt.Sprintf("%s (expired %s ago)", expires.UTC().Format(time.DateOnly),
+			strings.ToLower(units.HumanDuration(-delta)))
+	}
+	return fmt.Sprintf("%s (%s)", expires.UTC().Format(time.DateOnly),
+		strings.ToLower(units.HumanDuration(delta)))
+}

cmd/uc/caddy/cert/ls_test.go

@@ -0,0 +1,128 @@
+package cert
+
+import (
+	"bytes"
+	"crypto/sha256"
+	"crypto/x509"
+	"encoding/hex"
+	"encoding/json"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/caddyserver/certmagic"
+	"github.com/psviderski/uncloud/pkg/api"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestPrintCertificates(t *testing.T) {
+	now := time.Now().UTC().Truncate(time.Hour)
+	certs := []api.IssuedCertificate{
+		testIssuedCertificate("z.example.com", "z", now.Add(48*time.Hour), certmagic.LetsEncryptProductionCA),
+		testIssuedCertificate("a.example.com", "old", now.Add(-48*time.Hour), certmagic.LetsEncryptStagingCA),
+		testIssuedCertificate("a.example.com", "new", now.Add(72*time.Hour), "https://ca.example/directory"),
+		testIssuedCertificate("unknown.example.com", "unknown", now.Add(96*time.Hour), ""),
+	}
+
+	var table bytes.Buffer
+	require.NoError(t, printCertificates(&table, certs, ""))
+	output := table.String()
+	assert.Contains(t, output, "ID")
+	assert.Contains(t, output, "NAME")
+	assert.Contains(t, output, "ISSUER")
+	assert.Contains(t, output, "EXPIRES")
+	assert.Contains(t, output, now.Add(-48*time.Hour).Format(time.DateOnly)+" (expired ")
+	assert.Contains(t, output, now.Add(48*time.Hour).Format(time.DateOnly)+" (")
+	assert.Contains(t, output, "Let's Encrypt (staging)")
+	assert.Contains(t, output, "https://ca.example/directory")
+	assert.Less(t, strings.Index(output, now.Add(-48*time.Hour).Format(time.DateOnly)),
+		strings.Index(output, now.Add(72*time.Hour).Format(time.DateOnly)))
+	assert.Less(t, strings.Index(output, "a.example.com"), strings.Index(output, "z.example.com"))
+	assert.Contains(t, output, testFingerprint("old")[:12])
+
+	var encoded bytes.Buffer
+	require.NoError(t, printCertificates(&encoded, certs, "json"))
+	var items []struct {
+		api.IssuedCertificate
+		Fingerprint string
+	}
+	require.NoError(t, json.Unmarshal(encoded.Bytes(), &items))
+	require.Len(t, items, 4)
+	assert.Equal(t, testFingerprint("old"), items[0].Fingerprint)
+	assert.Equal(t, "a.example.com", items[0].SAN)
+	require.Len(t, items[0].Chain, 1)
+	assert.Equal(t, []byte("old"), items[0].Chain[0].Raw)
+	assert.Equal(t, now.Add(-48*time.Hour), items[0].Chain[0].NotAfter)
+	require.NotNil(t, items[0].IssuerData.ACME)
+	assert.Equal(t, certmagic.LetsEncryptStagingCA, items[0].IssuerData.ACME.CA)
+	assert.Equal(t, testFingerprint("new"), items[1].Fingerprint)
+	require.NotNil(t, items[1].IssuerData.ACME)
+	assert.Equal(t, "https://ca.example/directory", items[1].IssuerData.ACME.CA)
+	assert.Nil(t, items[2].IssuerData.ACME)
+	assert.Equal(t, "z.example.com", items[3].SAN)
+}
+
+func TestPrintCertificates_Empty(t *testing.T) {
+	for _, tt := range []struct {
+		output string
+		want   string
+	}{
+		{output: "", want: "No Caddy certificates found in cluster storage.\n"},
+		{output: "json", want: "[]\n"},
+	} {
+		var out bytes.Buffer
+		require.NoError(t, printCertificates(&out, nil, tt.output))
+		assert.Equal(t, tt.want, out.String())
+	}
+}
+
+func TestFormatIssuer(t *testing.T) {
+	for _, tt := range []struct {
+		name string
+		ca   string
+		want string
+	}{
+		{name: "production", ca: certmagic.LetsEncryptProductionCA, want: "Let's Encrypt"},
+		{name: "staging", ca: certmagic.LetsEncryptStagingCA, want: "Let's Encrypt (staging)"},
+		{name: "ZeroSSL", ca: certmagic.ZeroSSLProductionCA, want: "ZeroSSL"},
+		{name: "Google Trust Services", ca: certmagic.GoogleTrustProductionCA, want: "Google Trust Services"},
+		{name: "Google Trust Services staging", ca: certmagic.GoogleTrustStagingCA, want: "Google Trust Services (staging)"},
+		{name: "other", ca: "https://ca.example/directory", want: "https://ca.example/directory"},
+	} {
+		t.Run(tt.name, func(t *testing.T) {
+			assert.Equal(t, tt.want, formatIssuer(api.CertificateIssuerData{
+				ACME: &api.ACMEIssuerData{CA: tt.ca},
+			}))
+		})
+	}
+
+	assert.Equal(t, "unknown", formatIssuer(api.CertificateIssuerData{}))
+}
+
+func TestFormatExpiry_UTC(t *testing.T) {
+	now := time.Now().UTC()
+	brisbane := time.FixedZone("AEST", 10*60*60)
+	expires := time.Date(now.Year(), now.Month(), now.Day()+3, 3, 0, 0, 0, brisbane)
+	assert.True(t, strings.HasPrefix(formatExpiry(expires), expires.UTC().Format(time.DateOnly)+" ("))
+	assert.NotEqual(t, expires.Format(time.DateOnly), expires.UTC().Format(time.DateOnly))
+	expired := now.Add(-2 * time.Hour)
+	assert.True(t, strings.HasPrefix(formatExpiry(expired), expired.UTC().Format(time.DateOnly)+" (expired "))
+	assert.Contains(t, formatExpiry(expired), " ago)")
+}
+
+func testIssuedCertificate(name, raw string, expires time.Time, ca string) api.IssuedCertificate {
+	cert := api.IssuedCertificate{
+		SAN:   name,
+		Chain: []*x509.Certificate{{Raw: []byte(raw), NotAfter: expires}},
+	}
+	if ca != "" {
+		cert.IssuerData.ACME = &api.ACMEIssuerData{CA: ca}
+	}
+	return cert
+}
+
+func testFingerprint(raw string) string {
+	sum := sha256.Sum256([]byte(raw))
+	return hex.EncodeToString(sum[:])
+}

cmd/uc/caddy/cert/root.go

@@ -0,0 +1,12 @@
+package cert
+
+import "github.com/spf13/cobra"
+
+func NewRootCommand() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "cert",
+		Short: "Inspect certificates in cluster storage for Caddy.",
+	}
+	cmd.AddCommand(NewListCommand())
+	return cmd
+}

cmd/uc/caddy/config.go

@@ -8,6 +8,8 @@ import (
 	"github.com/alecthomas/chroma/v2/quick"
 	"github.com/psviderski/uncloud/internal/cli"
 	"github.com/psviderski/uncloud/internal/cli/completion"
+	"github.com/psviderski/uncloud/internal/cli/tui"
+	"github.com/psviderski/uncloud/pkg/client"
 	"github.com/spf13/cobra"
 )
 
@@ -46,12 +48,7 @@ func runConfig(ctx context.Context, uncli *cli.CLI, opts configOptions) error {
 	}
 	defer clusterClient.Close()
 
-	if opts.machine != "" {
-		// If a specific machine is requested, use it to get the Caddy configuration.
-		ctx = clusterClient.ProxySingleMachineContext(ctx, opts.machine)
-	}
-
-	config, err := clusterClient.Caddy.GetConfig(ctx, nil)
+	config, err := clusterClient.Caddy.Config(ctx, client.CaddyConfigOptions{Machine: opts.machine})
 	if err != nil {
 		return fmt.Errorf("get Caddy config: %w", err)
 	}
@@ -66,5 +63,10 @@ func runConfig(ctx context.Context, uncli *cli.CLI, opts configOptions) error {
 		}
 	}
 
+	if config.LastReconciliationError != "" {
+		tui.PrintWarning(fmt.Sprintf("last Caddy config load failed: %s\nShowing the last saved Caddyfile.",
+			config.LastReconciliationError))
+	}
+
 	return nil
 }

cmd/uc/caddy/deploy.go

@@ -110,7 +110,9 @@ func runDeploy(ctx context.Context, uncli *cli.CLI, opts deployOptions) error {
 	placement := api.Placement{
 		Machines: cli.ExpandCommaSeparatedValues(opts.machines),
 	}
-	d, err := clusterClient.NewCaddyDeployment(opts.image, caddyfile, placement)
+	d, err := clusterClient.Caddy.NewDeployment(ctx, client.CaddyDeploymentOptions{
+		Image: opts.image, Config: caddyfile, Placement: placement,
+	})
 	if err != nil {
 		return fmt.Errorf("create caddy deployment: %w", err)
 	}
@@ -202,6 +204,10 @@ func UpdateDomainRecords(ctx context.Context, clusterClient *client.Client, prog
 		}
 		return fmt.Errorf("get cluster domain: %w", err)
 	}
+	if !domain.Reserved {
+		fmt.Printf("Skipping DNS records update as cluster domain '%s' is managed externally.\n", domain.Name)
+		return nil
+	}
 
 	fmt.Println("Updating cluster domain records in Uncloud DNS to point to machines running caddy service...")
 	// TODO: split the method into two: one to get the records and one to update them to ask for update confirmation.
@@ -216,7 +222,7 @@ func UpdateDomainRecords(ctx context.Context, clusterClient *client.Client, prog
 		if errors.Is(err, client.ErrNoReachableMachines) {
 			fmt.Println()
 			fmt.Printf("DNS records for domain '%s' could not be updated as there are no internet-reachable "+
-				"machines running caddy containers.\n", domain)
+				"machines running caddy containers.\n", domain.Name)
 			fmt.Println()
 			fmt.Println("Possible solutions:")
 			fmt.Println("- Ensure your machines have public IP addresses")

cmd/uc/caddy/root.go

@@ -1,6 +1,7 @@
 package caddy
 
 import (
+	"github.com/psviderski/uncloud/cmd/uc/caddy/cert"
 	"github.com/spf13/cobra"
 )
 
@@ -10,6 +11,7 @@ func NewRootCommand() *cobra.Command {
 		Short: "Manage Caddy reverse proxy service.",
 	}
 	cmd.AddCommand(
+		cert.NewRootCommand(),
 		NewConfigCommand(),
 		NewDeployCommand(),
 		NewLogsCommand(),

cmd/uc/dns/release.go

@@ -37,6 +37,7 @@ func release(ctx context.Context, uncli *cli.CLI) error {
 		if status.Convert(err).Code() == codes.NotFound {
 			return errors.New("no domain reserved")
 		}
+		return fmt.Errorf("release cluster domain: %w", err)
 	}
 
 	fmt.Printf("Released cluster domain: %s\n", domain.Name)

cmd/uc/dns/reserve.go

@@ -49,7 +49,8 @@ func reserve(ctx context.Context, uncli *cli.CLI, opts reserveOptions) error {
 	domain, err := clusterClient.ReserveDomain(ctx, &pb.ReserveDomainRequest{Endpoint: opts.endpoint})
 	if err != nil {
 		if status.Convert(err).Code() == codes.AlreadyExists {
-			return errors.New("domain already reserved")
+			return errors.New("cluster domain already configured, unset it with 'uc dns set \"\"' " +
+				"or release a reservation with 'uc dns release' first")
 		}
 		return err
 	}

cmd/uc/dns/root.go

@@ -7,16 +7,19 @@ import (
 func NewRootCommand() *cobra.Command {
 	cmd := &cobra.Command{
 		Use:   "dns",
-		Short: "Manage cluster domain in Uncloud DNS.",
-		Long: "Manage cluster domain in Uncloud DNS.\n" +
+		Short: "Manage the cluster domain.",
+		Long: "Manage the cluster domain.\n" +
 			"DNS commands allow you to reserve or release a unique 'xxxxxx.uncld.dev' domain for your " +
 			"cluster. When reserved, Caddy service deployments will automatically update DNS records to route " +
-			"traffic to the services in the cluster.",
+			"traffic to the services in the cluster.\n\n" +
+			"EXPERIMENTAL: Use 'uc dns set' to configure an externally managed domain instead. " +
+			"Uncloud does not manage DNS records for manually set domains.",
 	}
 	cmd.AddCommand(
 		NewReleaseCommand(),
 		NewReserveCommand(),
 		NewShowCommand(),
+		NewSetCommand(),
 	)
 	return cmd
 }

cmd/uc/dns/set.go

@@ -0,0 +1,72 @@
+package dns
+
+import (
+	"context"
+	"errors"
+	"fmt"
+
+	"github.com/miekg/dns"
+	"github.com/psviderski/uncloud/api/pb"
+	"github.com/psviderski/uncloud/internal/cli"
+	"github.com/psviderski/uncloud/internal/cli/tui"
+	"github.com/psviderski/uncloud/internal/grpcversion"
+	"github.com/spf13/cobra"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/metadata"
+	"google.golang.org/grpc/status"
+)
+
+func NewSetCommand() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "set DOMAIN_NAME",
+		Args:  cobra.ExactArgs(1),
+		Short: "Set or unset an externally managed cluster domain (EXPERIMENTAL).",
+		Long: "EXPERIMENTAL: Set the cluster domain used to generate ingress hostnames for services.\n" +
+			"Configure wildcard DNS records for this domain with your DNS provider. " +
+			"Uncloud will not create, verify, update, or delete external DNS records.\n" +
+			"Pass an empty string to unset a manually set domain. " +
+			"Use 'uc dns release' to release a domain reserved in Uncloud DNS. " +
+			"Setting or unsetting the domain does not change existing service hostnames.",
+		Example: "  uc dns set apps.example.com\n  uc dns set \"\"",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			uncli := cmd.Context().Value("cli").(*cli.CLI)
+			return set(cmd.Context(), uncli, args[0])
+		},
+	}
+
+	return cmd
+}
+
+func set(ctx context.Context, uncli *cli.CLI, name string) error {
+	if name != "" {
+		if labels, ok := dns.IsDomainName(name); !ok || labels < 2 {
+			return fmt.Errorf("invalid cluster domain %q: must be a valid domain name with at least two labels", name)
+		}
+	}
+	tui.PrintWarning("Setting an externally managed cluster domain is experimental.")
+
+	clusterClient, err := uncli.ConnectCluster(ctx)
+	if err != nil {
+		return fmt.Errorf("connect to cluster: %w", err)
+	}
+	defer clusterClient.Close()
+
+	ctx = metadata.AppendToOutgoingContext(ctx, grpcversion.MetadataKeyMinServerVersion, "0.21.0")
+	_, err = clusterClient.SetDomain(ctx, &pb.SetDomainRequest{Name: name})
+	if err != nil {
+		if status.Convert(err).Code() == codes.AlreadyExists {
+			return errors.New("cluster domain already configured, unset it with 'uc dns set \"\"' or " +
+				"release a reservation with 'uc dns release' first")
+		}
+		return fmt.Errorf("set cluster domain: %w", err)
+	}
+
+	if name == "" {
+		fmt.Println("Unset cluster domain. External DNS records have not been changed.")
+		return nil
+	}
+	fmt.Printf("Set cluster domain: %s\n", name)
+	fmt.Println("DNS is managed externally. " +
+		"Configure wildcard DNS records pointing to machines running the Caddy service.")
+	return nil
+}

cmd/uc/dns/show.go

@@ -33,11 +33,11 @@ func show(ctx context.Context, uncli *cli.CLI) error {
 	domain, err := clusterClient.GetDomain(ctx)
 	if err != nil {
 		if errors.Is(err, api.ErrNotFound) {
-			return errors.New("no domain reserved")
+			return errors.New("no cluster domain configured")
 		}
 		return err
 	}
 
-	fmt.Println(domain)
+	fmt.Println(domain.Name)
 	return nil
 }

cmd/uc/machine/add.go

@@ -192,7 +192,7 @@ func add(ctx context.Context, uncli *cli.CLI, remoteMachine *cli.RemoteMachine,
 	// Deploy a Caddy service container to the added machine. If caddy service is already deployed on other machines,
 	// use the deployed image version.
 	// NOTE: We use the cluster client to inspect and scale the Caddy service because the newly added machine may have
-	// issues accessing the Machine API of existing machines in the cluster.
+	// issues accessing the API of existing machines in the cluster.
 	// See the issue for more details: https://github.com/psviderski/uncloud/issues/65.
 	caddyImage := ""
 	caddySvc, err := clusterClient.InspectService(ctx, client.CaddyServiceName)
@@ -219,7 +219,7 @@ func add(ctx context.Context, uncli *cli.CLI, remoteMachine *cli.RemoteMachine,
 
 	fmt.Println()
 	fmt.Println("Preparing Caddy deployment...")
-	d, err := clusterClient.NewCaddyDeployment(caddyImage, "", api.Placement{})
+	d, err := clusterClient.Caddy.NewDeployment(ctx, client.CaddyDeploymentOptions{Image: caddyImage})
 	if err != nil {
 		return fmt.Errorf("create caddy deployment: %w", err)
 	}

cmd/uc/machine/init.go

@@ -16,7 +16,7 @@ import (
 	"github.com/psviderski/uncloud/internal/cli/tui"
 	"github.com/psviderski/uncloud/internal/machine/cluster"
 	"github.com/psviderski/uncloud/internal/machine/network"
-	"github.com/psviderski/uncloud/pkg/api"
+	"github.com/psviderski/uncloud/pkg/client"
 	"github.com/spf13/cobra"
 )
 
@@ -221,17 +221,17 @@ func initCluster(ctx context.Context, uncli *cli.CLI, remoteMachine *cli.RemoteM
 		initOpts.WireguardEndpoints = endpoints
 	}
 
-	client, err := uncli.InitCluster(ctx, initOpts)
+	clusterClient, err := uncli.InitCluster(ctx, initOpts)
 	if err != nil {
 		return err
 	}
-	defer client.Close()
+	defer clusterClient.Close()
 
 	// Since the cluster API needs a few moments to become ready after cluster initialisation,
 	// we keep the user informed during this wait. We wait here even if no Caddy or DNS is requested
 	// as the cluster needs to be ready so that commands such as 'uc machine ls' work immediately after init.
 	err = tui.RunSpinner(ctx, "Waiting for the cluster to be ready...", func(ctx context.Context) error {
-		return client.WaitClusterReady(ctx, 1*time.Minute)
+		return clusterClient.WaitClusterReady(ctx, 1*time.Minute)
 	})
 	if err != nil {
 		return fmt.Errorf("wait for cluster to be ready: %w", err)
@@ -245,7 +245,7 @@ func initCluster(ctx context.Context, uncli *cli.CLI, remoteMachine *cli.RemoteM
 	fmt.Println()
 
 	if !opts.noDNS {
-		domain, err := client.ReserveDomain(ctx, &pb.ReserveDomainRequest{Endpoint: opts.dnsEndpoint})
+		domain, err := clusterClient.ReserveDomain(ctx, &pb.ReserveDomainRequest{Endpoint: opts.dnsEndpoint})
 		if err != nil {
 			return fmt.Errorf("reserve cluster domain in Uncloud DNS: %w", err)
 		}
@@ -253,7 +253,7 @@ func initCluster(ctx context.Context, uncli *cli.CLI, remoteMachine *cli.RemoteM
 	}
 
 	if !opts.noCaddy {
-		d, err := client.NewCaddyDeployment("", "", api.Placement{})
+		d, err := clusterClient.Caddy.NewDeployment(ctx, client.CaddyDeploymentOptions{})
 		if err != nil {
 			return fmt.Errorf("create caddy deployment: %w", err)
 		}
@@ -269,7 +269,7 @@ func initCluster(ctx context.Context, uncli *cli.CLI, remoteMachine *cli.RemoteM
 		}
 
 		fmt.Println()
-		return caddy.UpdateDomainRecords(ctx, client, uncli.ProgressOut())
+		return caddy.UpdateDomainRecords(ctx, clusterClient, uncli.ProgressOut())
 	}
 
 	return nil

cmd/uc/main.go

@@ -88,10 +88,11 @@ func main() {
 
 			configPath := fs.ExpandHomeDir(opts.configPath)
 
+			// Make uc connect via the local Unix socket when running on a cluster machine.
 			if opts.connect == "" {
-				if !fs.Exists(configPath) && fs.Exists(machine.DefaultUncloudSockPath) {
+				if !fs.Exists(configPath) && fs.Exists(machine.DefaultClusterAPISockPath) {
 					conn = &config.MachineConnection{
-						Unix: machine.DefaultUncloudSockPath,
+						Unix: machine.DefaultClusterAPISockPath,
 					}
 				}
 			}

cmd/uc/service/run.go

@@ -122,6 +122,7 @@ func NewRunCommand(groupID string) *cobra.Command {
 		"Mount a data volume or host path into service containers. Service containers will be scheduled on the machine(s) where\n"+
 			"the volume is located. Can be specified multiple times.\n"+
 			"Format: volume_name:/container/path[:ro|volume-nocopy] or /host/path:/container/path[:ro]\n"+
+			"Host and container paths support runtime templates such as {{.Container.Name}}.\n"+
 			"Examples:\n"+
 			"  -v postgres-data:/var/lib/postgresql/data  Mount volume 'postgres-data' to /var/lib/postgresql/data in container\n"+
 			"  -v /data/uploads:/app/uploads         	 Bind mount /data/uploads host directory to /app/uploads in container\n"+

cmd/uncloudd/dialstdio.go

@@ -23,7 +23,7 @@ func newDialStdioCommand() *cobra.Command {
 		},
 	}
 
-	cmd.Flags().StringVar(&socketPath, "socket", machine.DefaultUncloudSockPath,
+	cmd.Flags().StringVar(&socketPath, "socket", machine.DefaultClusterAPISockPath,
 		"Path to the Uncloud API socket")
 
 	return cmd

experiment/go.mod

@@ -1,6 +1,6 @@
 module github.com/psviderski/uncloud/experiment
 
-go 1.26
+go 1.26.0
 
 require (
 	github.com/dgraph-io/badger/v3 v3.2103.5
@@ -18,10 +18,10 @@ require (
 	github.com/psviderski/uncloud v0.0.0
 	github.com/siderolabs/discovery-api v0.1.4
 	github.com/siderolabs/discovery-client v0.1.9
-	go.uber.org/zap v1.27.0
-	golang.org/x/net v0.43.0
+	go.uber.org/zap v1.28.0
+	golang.org/x/net v0.59.0
 	golang.zx2c4.com/wireguard v0.0.0-20231211153847-12269c276173
-	google.golang.org/grpc v1.74.2
+	google.golang.org/grpc v1.81.0
 )
 
 require (
@@ -79,18 +79,18 @@ require (
 	github.com/ishidawataru/sctp v0.0.0-20230406120618-7ff4192f6ff2 // indirect
 	github.com/jbenet/goprocess v0.1.4 // indirect
 	github.com/josharian/native v1.1.0 // indirect
-	github.com/klauspost/compress v1.18.0 // indirect
-	github.com/klauspost/cpuid/v2 v2.2.9 // indirect
+	github.com/klauspost/compress v1.19.1 // indirect
+	github.com/klauspost/cpuid/v2 v2.4.0 // indirect
 	github.com/libp2p/go-buffer-pool v0.1.0 // indirect
 	github.com/libp2p/go-libp2p v0.35.4 // indirect
 	github.com/libp2p/go-libp2p-pubsub v0.11.0 // indirect
 	github.com/libp2p/go-msgio v0.3.0 // indirect
-	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/mattn/go-colorable v0.1.14 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/mdlayher/genetlink v1.3.2 // indirect
 	github.com/mdlayher/netlink v1.7.2 // indirect
 	github.com/mdlayher/socket v0.5.1 // indirect
-	github.com/miekg/dns v1.1.65 // indirect
+	github.com/miekg/dns v1.1.73 // indirect
 	github.com/minio/sha256-simd v1.0.1 // indirect
 	github.com/mitchellh/cli v1.1.5 // indirect
 	github.com/mitchellh/copystructure v1.2.0 // indirect
@@ -113,30 +113,30 @@ require (
 	github.com/sean-/seed v0.0.0-20170313163322-e2103e2c3529 // indirect
 	github.com/shopspring/decimal v1.4.0 // indirect
 	github.com/siderolabs/gen v0.4.8 // indirect
-	github.com/sirupsen/logrus v1.9.3 // indirect
+	github.com/sirupsen/logrus v1.9.4 // indirect
 	github.com/spaolacci/murmur3 v1.1.0 // indirect
 	github.com/spf13/cast v1.7.0 // indirect
 	github.com/vishvananda/netlink v1.3.1 // indirect
 	github.com/vishvananda/netns v0.0.5 // indirect
 	go.opencensus.io v0.24.0 // indirect
-	go.opentelemetry.io/auto/sdk v1.1.0 // indirect
-	go.opentelemetry.io/otel v1.36.0 // indirect
-	go.opentelemetry.io/otel/metric v1.36.0 // indirect
-	go.opentelemetry.io/otel/trace v1.36.0 // indirect
+	go.opentelemetry.io/auto/sdk v1.2.1 // indirect
+	go.opentelemetry.io/otel v1.43.0 // indirect
+	go.opentelemetry.io/otel/metric v1.43.0 // indirect
+	go.opentelemetry.io/otel/trace v1.43.0 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
 	go4.org/netipx v0.0.0-20231129151722-fdeea329fbba // indirect
-	golang.org/x/crypto v0.41.0 // indirect
+	golang.org/x/crypto v0.57.0 // indirect
 	golang.org/x/exp v0.0.0-20250408133849-7e4ce0ab07d0 // indirect
-	golang.org/x/mod v0.27.0 // indirect
-	golang.org/x/sync v0.20.0 // indirect
-	golang.org/x/sys v0.45.0 // indirect
-	golang.org/x/text v0.28.0 // indirect
-	golang.org/x/time v0.11.0 // indirect
-	golang.org/x/tools v0.36.0 // indirect
+	golang.org/x/mod v0.41.0 // indirect
+	golang.org/x/sync v0.23.0 // indirect
+	golang.org/x/sys v0.48.0 // indirect
+	golang.org/x/text v0.42.0 // indirect
+	golang.org/x/time v0.16.0 // indirect
+	golang.org/x/tools v0.50.0 // indirect
 	golang.zx2c4.com/wintun v0.0.0-20230126152724-0fa3db229ce2 // indirect
 	golang.zx2c4.com/wireguard/wgctrl v0.0.0-20230429144221-925a1e7659e6 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20250528174236-200df99c418a // indirect
-	google.golang.org/protobuf v1.36.9 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20260427160629-7cedc36a6bc4 // indirect
+	google.golang.org/protobuf v1.36.12 // indirect
 	gotest.tools/v3 v3.5.2 // indirect
 	gvisor.dev/gvisor v0.0.0-20230927004350-cbd86285d259 // indirect
 	lukechampine.com/blake3 v1.3.0 // indirect

experiment/go.sum

@@ -302,8 +302,10 @@ github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+o
 github.com/klauspost/compress v1.12.3/go.mod h1:8dP1Hq4DHOhN9w426knH3Rhby4rFm6D8eO+e+Dq5Gzg=
 github.com/klauspost/compress v1.18.0 h1:c/Cqfb0r+Yi+JtIEq73FWXVkRonBlf0CRNYc8Zttxdo=
 github.com/klauspost/compress v1.18.0/go.mod h1:2Pp+KzxcywXVXMr50+X0Q/Lsb43OQHYWRCY2AiWywWQ=
+github.com/klauspost/compress v1.19.1/go.mod h1:cwPg85FWrGar70rWktvGQj8/hthj3wpl0PGDogxkrSQ=
 github.com/klauspost/cpuid/v2 v2.2.9 h1:66ze0taIn2H33fBvCkXuv9BmCwDfafmiIVpKV9kKGuY=
 github.com/klauspost/cpuid/v2 v2.2.9/go.mod h1:rqkxqrZ1EhYM9G+hXH7YdowN5R5RGN6NK4QwQ3WMXF8=
+github.com/klauspost/cpuid/v2 v2.4.0/go.mod h1:19jmZ9mjzoF//ddRSUsv0zfBTJWh3QJh9FNxZTMrGxU=
 github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
 github.com/koron/go-ssdp v0.0.4 h1:1IDwrghSKYM7yLf7XCzbByg2sJ/JcNOZRXS2jczTwz0=
 github.com/koron/go-ssdp v0.0.4/go.mod h1:oDXq+E5IL5q0U8uSBcoAXzTzInwy5lEgC91HoKtbmZk=
@@ -349,6 +351,7 @@ github.com/mattn/go-colorable v0.1.4/go.mod h1:U0ppj6V5qS13XJ6of8GYAs25YV2eR4EVc
 github.com/mattn/go-colorable v0.1.6/go.mod h1:u6P/XSegPjTcexA+o6vUJrdnUu04hMope9wVRipJSqc=
 github.com/mattn/go-colorable v0.1.13 h1:fFA4WZxdEF4tXPZVKMLwD8oUnCTTo08duU7wxecdEvA=
 github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovkB8vQcUbaXHg=
+github.com/mattn/go-colorable v0.1.14/go.mod h1:6LmQG8QLFO4G5z1gPvYEzlUgJ2wF+stgPZH1UqBm1s8=
 github.com/mattn/go-isatty v0.0.3/go.mod h1:M+lRXTBqGeGNdLjl/ufCoiOlB5xdOkqRJdNxMWT7Zi4=
 github.com/mattn/go-isatty v0.0.8/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
 github.com/mattn/go-isatty v0.0.11/go.mod h1:PhnuNfih5lzO57/f3n+odYbM4JtupLOxQOAqxQCu2WE=
@@ -368,6 +371,7 @@ github.com/miekg/dns v1.1.26/go.mod h1:bPDLeHnStXmXAq1m/Ch/hvfNHr14JKNPMBo3VZKju
 github.com/miekg/dns v1.1.41/go.mod h1:p6aan82bvRIyn+zDIv9xYNUpwa73JcSh9BKwknJysuI=
 github.com/miekg/dns v1.1.65 h1:0+tIPHzUW0GCge7IiK3guGP57VAw7hoPDfApjkMD1Fc=
 github.com/miekg/dns v1.1.65/go.mod h1:Dzw9769uoKVaLuODMDZz9M6ynFU6Em65csPuoi8G0ck=
+github.com/miekg/dns v1.1.73/go.mod h1:RW2Obtfd5NZHvOFe3zYG0W8koWOQtAzyHaLo8vASBuQ=
 github.com/mikioh/ipaddr v0.0.0-20190404000644-d465c8ab6721 h1:RlZweED6sbSArvlE924+mUcZuXKLBHA35U7LN621Bws=
 github.com/mikioh/ipaddr v0.0.0-20190404000644-d465c8ab6721/go.mod h1:Ickgr2WtCLZ2MDGd4Gr0geeCH5HybhRJbonOgQpvSxc=
 github.com/mikioh/tcpinfo v0.0.0-20190314235526-30a79bb1804b h1:z78hV3sbSMAUoyUMM0I83AUIT6Hu17AWfgjzIbtrYFc=
@@ -529,6 +533,7 @@ github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPx
 github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
 github.com/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ=
 github.com/sirupsen/logrus v1.9.3/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ=
+github.com/sirupsen/logrus v1.9.4/go.mod h1:ftWc9WdOfJ0a92nsE2jF5u5ZwH8Bv2zdeOC42RjbV2g=
 github.com/smartystreets/assertions v1.2.0 h1:42S6lae5dvLc7BrLu/0ugRtcFVjoJNMC/N3yZFZkDFs=
 github.com/smartystreets/assertions v1.2.0/go.mod h1:tcbTF8ujkAEcZ8TElKY+i30BzYlVhC/LOxJk7iOWnoo=
 github.com/smartystreets/goconvey v1.7.2 h1:9RBaZCeXEQ3UselpuwUQHltGVXvdwm6cv1hgR6gDIPg=
@@ -581,16 +586,20 @@ go.opencensus.io v0.24.0 h1:y73uSU6J157QMP2kn2r30vwW1A2W2WFwSCGnAVxeaD0=
 go.opencensus.io v0.24.0/go.mod h1:vNK8G9p7aAivkbmorf4v+7Hgx+Zs0yY+0fOtgBfjQKo=
 go.opentelemetry.io/auto/sdk v1.1.0 h1:cH53jehLUN6UFLY71z+NDOiNJqDdPRaXzTel0sJySYA=
 go.opentelemetry.io/auto/sdk v1.1.0/go.mod h1:3wSPjt5PWp2RhlCcmmOial7AvC4DQqZb7a7wCow3W8A=
+go.opentelemetry.io/auto/sdk v1.2.1/go.mod h1:KRTj+aOaElaLi+wW1kO/DZRXwkF4C5xPbEe3ZiIhN7Y=
 go.opentelemetry.io/otel v1.36.0 h1:UumtzIklRBY6cI/lllNZlALOF5nNIzJVb16APdvgTXg=
 go.opentelemetry.io/otel v1.36.0/go.mod h1:/TcFMXYjyRNh8khOAO9ybYkqaDBb/70aVwkNML4pP8E=
+go.opentelemetry.io/otel v1.43.0/go.mod h1:JuG+u74mvjvcm8vj8pI5XiHy1zDeoCS2LB1spIq7Ay0=
 go.opentelemetry.io/otel/metric v1.36.0 h1:MoWPKVhQvJ+eeXWHFBOPoBOi20jh6Iq2CcCREuTYufE=
 go.opentelemetry.io/otel/metric v1.36.0/go.mod h1:zC7Ks+yeyJt4xig9DEw9kuUFe5C3zLbVjV2PzT6qzbs=
+go.opentelemetry.io/otel/metric v1.43.0/go.mod h1:RDnPtIxvqlgO8GRW18W6Z/4P462ldprJtfxHxyKd2PY=
 go.opentelemetry.io/otel/sdk v1.36.0 h1:b6SYIuLRs88ztox4EyrvRti80uXIFy+Sqzoh9kFULbs=
 go.opentelemetry.io/otel/sdk v1.36.0/go.mod h1:+lC+mTgD+MUWfjJubi2vvXWcVxyr9rmlshZni72pXeY=
 go.opentelemetry.io/otel/sdk/metric v1.36.0 h1:r0ntwwGosWGaa0CrSt8cuNuTcccMXERFwHX4dThiPis=
 go.opentelemetry.io/otel/sdk/metric v1.36.0/go.mod h1:qTNOhFDfKRwX0yXOqJYegL5WRaW376QbB7P4Pb0qva4=
 go.opentelemetry.io/otel/trace v1.36.0 h1:ahxWNuqZjpdiFAyrIoQ4GIiAIhxAunQR6MUoKrsNd4w=
 go.opentelemetry.io/otel/trace v1.36.0/go.mod h1:gQ+OnDZzrybY4k4seLzPAWNwVBBVlF2szhehOBB/tGA=
+go.opentelemetry.io/otel/trace v1.43.0/go.mod h1:/QJhyVBUUswCphDVxq+8mld+AvhXZLhe+8WVFxiFff0=
 go.uber.org/atomic v1.7.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
 go.uber.org/dig v1.17.1 h1:Tga8Lz8PcYNsWsyHMZ1Vm0OQOUaJNDyvPImgbAu9YSc=
 go.uber.org/dig v1.17.1/go.mod h1:Us0rSJiThwCv2GteUN0Q7OKvU7n5J4dxZ9JKUXozFdE=
@@ -607,6 +616,7 @@ go.uber.org/multierr v1.11.0/go.mod h1:20+QtiLqy0Nd6FdQB9TLXag12DsQkrbs3htMFfDN8
 go.uber.org/zap v1.19.1/go.mod h1:j3DNczoxDZroyBnOT1L/Q79cfUMGZxlv/9dzN7SM1rI=
 go.uber.org/zap v1.27.0 h1:aJMhYGrd5QSmlpLMr2MftRKl7t8J8PTZPA732ud/XR8=
 go.uber.org/zap v1.27.0/go.mod h1:GB2qFLM7cTU87MWRP2mPIjqfIDnGu+VIO4V/SdhGo2E=
+go.uber.org/zap v1.28.0/go.mod h1:rDLpOi171uODNm/mxFcuYWxDsqWSAVkFdX4XojSKg/Q=
 go4.org/netipx v0.0.0-20231129151722-fdeea329fbba h1:0b9z3AuHCjxk0x/opv64kcgZLBseWJUpBw5I82+2U4M=
 go4.org/netipx v0.0.0-20231129151722-fdeea329fbba/go.mod h1:PLyyIXexvUFg3Owu6p/WfdlivPbZJsZdgWZlrGope/Y=
 golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
@@ -622,6 +632,7 @@ golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5y
 golang.org/x/crypto v0.3.0/go.mod h1:hebNnKkNXi2UzZN1eVRvBB7co0a+JxK6XbPiWVs/3J4=
 golang.org/x/crypto v0.41.0 h1:WKYxWedPGCTVVl5+WHSSrOBT0O8lx32+zxmHxijgXp4=
 golang.org/x/crypto v0.41.0/go.mod h1:pO5AFd7FA68rFak7rOAGVuygIISepHftHnr8dr6+sUc=
+golang.org/x/crypto v0.57.0/go.mod h1:Fdz0i5U6CoizGwLda9DttjSk6qlZo25zYNtR+ycvuZA=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20250408133849-7e4ce0ab07d0 h1:R84qjqJb5nVJMxqWYb3np9L5ZsaDtB+a39EqjV0JSUM=
 golang.org/x/exp v0.0.0-20250408133849-7e4ce0ab07d0/go.mod h1:S9Xr4PYopiDyqSyp5NjCrhFrqg6A5zA2E/iPHPhqnS8=
@@ -635,6 +646,7 @@ golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
 golang.org/x/mod v0.27.0 h1:kb+q2PyFnEADO2IEF935ehFUXlWiNjJWtRNgBLSfbxQ=
 golang.org/x/mod v0.27.0/go.mod h1:rWI627Fq0DEoudcK+MBkNkCe0EetEaDSwJJkCcjpazc=
+golang.org/x/mod v0.41.0/go.mod h1:Ek9pY8RKWXwsWvd3rQiHYtMqkjSUV+s1Rj7j4H5Ur6o=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20181114220301-adae6a3d119a/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@@ -654,6 +666,7 @@ golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug
 golang.org/x/net v0.2.0/go.mod h1:KqCZLdyyvdV855qA2rE3GC2aiw5xGR5TEjj8smXukLY=
 golang.org/x/net v0.43.0 h1:lat02VYK2j4aLzMzecihNvTlJNQUq316m2Mr9rnM6YE=
 golang.org/x/net v0.43.0/go.mod h1:vhO1fvI4dGsIjh73sWfUVjj3N7CA9WkKJNQm2svM6Jg=
+golang.org/x/net v0.59.0/go.mod h1:2DA/G1UfVbCpQPeWTmMPGY7Cs2PkBkwu743bVX5PIVg=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -666,6 +679,7 @@ golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.20.0 h1:e0PTpb7pjO8GAtTs2dQ6jYa5BWYlMuX047Dco/pItO4=
 golang.org/x/sync v0.20.0/go.mod h1:9xrNwdLfx4jkKbNva9FpL6vEN7evnE43NNNJQ2LF3+0=
+golang.org/x/sync v0.23.0/go.mod h1:sUUOizhqBxiL6pEWpqNLUiaJn1ShEbZ6BBqskPbjZm0=
 golang.org/x/sys v0.0.0-20180823144017-11551d06cbcc/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
@@ -700,6 +714,7 @@ golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.10.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.45.0 h1:dO4czNzziLiiXplLQgBCEpCvXQ3dnkn0SdaZSYdQ+FY=
 golang.org/x/sys v0.45.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
+golang.org/x/sys v0.48.0/go.mod h1:hNLxWAXmnKAxqDtdwIYC4bM9oQPEecfsnNMuSxOs3og=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/term v0.2.0/go.mod h1:TVmDHMZPmdnySmBfhjOoOdhjzdE1h4u1VwSiw2l1Nuc=
@@ -711,8 +726,10 @@ golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/text v0.4.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
 golang.org/x/text v0.28.0 h1:rhazDwis8INMIwQ4tpjLDzUhx6RlXqZNPEM0huQojng=
 golang.org/x/text v0.28.0/go.mod h1:U8nCwOR8jO/marOQ0QbDiOngZVEBB7MAiitBuMjXiNU=
+golang.org/x/text v0.42.0/go.mod h1:ojzP1Z+2QtioaF8DTtO8K5q7JWVVYwZKenzujK0Zd0E=
 golang.org/x/time v0.11.0 h1:/bpjEDfN9tkoN/ryeYHnv5hcMlc8ncjMcM4XBk5NWV0=
 golang.org/x/time v0.11.0/go.mod h1:CDIdPxbZBQxdj6cxyCIdrNogrJKMJ7pr37NYpMcMDSg=
+golang.org/x/time v0.16.0/go.mod h1:rVKOqvZeKvrDKTQiAHJ7wmwP0RzleSphoEA9RcdLA0s=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
@@ -727,6 +744,7 @@ golang.org/x/tools v0.1.5/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
 golang.org/x/tools v0.36.0 h1:kWS0uv/zsvHEle1LbV5LE8QujrxB3wfQyxHfhOk0Qkg=
 golang.org/x/tools v0.36.0/go.mod h1:WBDiHKJK8YgLHlcQPYQzNCkUxUypCaa5ZegCVutKm+s=
+golang.org/x/tools v0.50.0/go.mod h1:7ulVMw3831Mwi5EZD6RomGyffr4VFjuNYXf2BbCEAV0=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@@ -745,6 +763,7 @@ google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98
 google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20250528174236-200df99c418a h1:v2PbRU4K3llS09c7zodFpNePeamkAwG3mPrAery9VeE=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20250528174236-200df99c418a/go.mod h1:qQ0YXyHHx3XkvlzUtpXDkS29lDSafHMZBAZDc03LQ3A=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20260427160629-7cedc36a6bc4/go.mod h1:4Hqkh8ycfw05ld/3BWL7rJOSfebL2Q+DVDeRgYgxUU8=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
 google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
@@ -753,6 +772,7 @@ google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8
 google.golang.org/grpc v1.33.2/go.mod h1:JMHMWHQWaTccqQQlmk3MJZS+GWXOdAesneDmEnv2fbc=
 google.golang.org/grpc v1.74.2 h1:WoosgB65DlWVC9FqI82dGsZhWFNBSLjQ84bjROOpMu4=
 google.golang.org/grpc v1.74.2/go.mod h1:CtQ+BGjaAIXHs/5YS3i473GqwBBa1zGQNevxdeBEXrM=
+google.golang.org/grpc v1.81.0/go.mod h1:xGH9GfzOyMTGIOXBJmXt+BX/V0kcdQbdcuwQ/zNw42I=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
@@ -764,6 +784,7 @@ google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpAD
 google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
 google.golang.org/protobuf v1.36.9 h1:w2gp2mA27hUeUzj9Ex9FBjsBm40zfaDtEWow293U7Iw=
 google.golang.org/protobuf v1.36.9/go.mod h1:fuxRtAxBytpl4zzqUh6/eyUujkJdNiuEkXntxiD/uRU=
+google.golang.org/protobuf v1.36.12/go.mod h1:HTf+CrKn2C3g5S8VImy6tdcUvCska2kB7j23XfzDpco=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=

experiment/wg/connector.go

@@ -60,7 +60,7 @@ func (c *WireGuardConnector) Connect(ctx context.Context) (*grpc.ClientConn, err
 	}
 	endpoint := netip.AddrPortFrom(endpointAddr, DefaultEndpointPort)
 	machineManagementIP := network.ManagementIP(machine.PublicKey)
-	machineAPIAddr := net.JoinHostPort(machineManagementIP.String(), strconv.Itoa(constants.MachineAPIPort))
+	machineAPIAddr := net.JoinHostPort(machineManagementIP.String(), strconv.Itoa(constants.UncloudAPIPort))
 
 	tunCfg := &Config{
 		LocalAddress:    c.user.ManagementIP(),

go.mod

@@ -4,7 +4,7 @@ go 1.26.0
 
 require (
 	charm.land/bubbles/v2 v2.0.0
-	charm.land/bubbletea/v2 v2.0.2
+	charm.land/bubbletea/v2 v2.0.10
 	charm.land/huh/v2 v2.0.1
 	charm.land/lipgloss/v2 v2.0.1
 	github.com/BurntSushi/toml v1.6.0
@@ -34,6 +34,7 @@ require (
 	github.com/google/uuid v1.6.0
 	github.com/jmoiron/sqlx v1.4.0
 	github.com/mattn/go-shellwords v1.0.12
+	github.com/mholt/acmez/v3 v3.1.6
 	github.com/miekg/dns v1.1.73
 	github.com/mitchellh/mapstructure v1.5.0
 	github.com/moby/term v0.5.2
@@ -61,27 +62,14 @@ require (
 )
 
 require (
-	cel.dev/expr v0.25.1 // indirect
-	cloud.google.com/go/auth v0.20.0 // indirect
-	cloud.google.com/go/auth/oauth2adapt v0.2.8 // indirect
-	cloud.google.com/go/compute/metadata v0.9.0 // indirect
-	dario.cat/mergo v1.0.2 // indirect
-	filippo.io/bigmod v0.1.0 // indirect
-	filippo.io/edwards25519 v1.2.0 // indirect
 	github.com/AlecAivazis/survey/v2 v2.3.7 // indirect
-	github.com/AndreasBriese/bbloom v0.0.0-20190825152654-46b345b51c96 // indirect
 	github.com/Azure/go-ansiterm v0.0.0-20250102033503-faa5f7b0171c // indirect
 	github.com/DefangLabs/secret-detector v0.0.0-20250403165618-22662109213e // indirect
-	github.com/KimMachineGun/automemlimit v0.7.5 // indirect
-	github.com/Masterminds/goutils v1.1.1 // indirect
 	github.com/Masterminds/semver/v3 v3.4.0 // indirect
-	github.com/Masterminds/sprig/v3 v3.3.0 // indirect
 	github.com/Microsoft/go-winio v0.6.2 // indirect
 	github.com/Microsoft/hcsshim v0.13.0 // indirect
 	github.com/acarl005/stripansi v0.0.0-20180116102854-5a71ef0e047d // indirect
-	github.com/antlr4-go/antlr/v4 v4.13.1 // indirect
 	github.com/apparentlymart/go-textseg/v15 v15.0.0 // indirect
-	github.com/aryann/difflib v0.0.0-20210328193216-ff5ff6dc229b // indirect
 	github.com/atotto/clipboard v0.1.4 // indirect
 	github.com/aws/aws-sdk-go-v2 v1.41.7 // indirect
 	github.com/aws/aws-sdk-go-v2/config v1.32.17 // indirect
@@ -101,20 +89,16 @@ require (
 	github.com/buger/goterm v1.0.4 // indirect
 	github.com/caddyserver/zerossl v0.1.5 // indirect
 	github.com/catppuccin/go v0.3.0 // indirect
-	github.com/ccoveille/go-safecast/v2 v2.0.0 // indirect
 	github.com/cenkalti/backoff/v5 v5.0.3 // indirect
-	github.com/cespare/xxhash v1.1.0 // indirect
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
-	github.com/charmbracelet/ultraviolet v0.0.0-20260525132238-948f4557a654 // indirect
+	github.com/charmbracelet/ultraviolet v0.0.0-20260703014108-f5a850f9c2b7 // indirect
 	github.com/charmbracelet/x/exp/ordered v0.1.0 // indirect
 	github.com/charmbracelet/x/exp/strings v0.0.0-20240919170804-a4978c8e603a // indirect
 	github.com/charmbracelet/x/term v0.2.2 // indirect
 	github.com/charmbracelet/x/termios v0.1.1 // indirect
 	github.com/charmbracelet/x/windows v0.2.2 // indirect
-	github.com/chzyer/readline v1.5.1 // indirect
 	github.com/clipperhouse/displaywidth v0.11.0 // indirect
 	github.com/clipperhouse/uax29/v2 v2.7.0 // indirect
-	github.com/cloudflare/circl v1.6.3 // indirect
 	github.com/containerd/cgroups/v3 v3.0.5 // indirect
 	github.com/containerd/console v1.0.5 // indirect
 	github.com/containerd/containerd/api v1.9.0 // indirect
@@ -127,13 +111,8 @@ require (
 	github.com/containerd/stargz-snapshotter/estargz v0.16.3 // indirect
 	github.com/containerd/ttrpc v1.2.7 // indirect
 	github.com/containerd/typeurl/v2 v2.2.3 // indirect
-	github.com/coreos/go-oidc/v3 v3.17.0 // indirect
 	github.com/cpuguy83/go-md2man/v2 v2.0.7 // indirect
 	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
-	github.com/dgraph-io/badger v1.6.2 // indirect
-	github.com/dgraph-io/badger/v2 v2.2007.4 // indirect
-	github.com/dgraph-io/ristretto v0.2.0 // indirect
-	github.com/dgryski/go-farm v0.0.0-20200201041132-a6ae2369ad13 // indirect
 	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
 	github.com/distribution/distribution/v3 v3.0.0 // indirect
 	github.com/dlclark/regexp2 v1.12.0 // indirect
@@ -151,14 +130,11 @@ require (
 	github.com/fsnotify/fsevents v0.2.0 // indirect
 	github.com/fvbommel/sortorder v1.1.0 // indirect
 	github.com/fxamacker/cbor/v2 v2.9.0 // indirect
-	github.com/go-jose/go-jose/v3 v3.0.5 // indirect
-	github.com/go-jose/go-jose/v4 v4.1.4 // indirect
 	github.com/go-logr/logr v1.4.3 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/go-openapi/jsonpointer v0.21.0 // indirect
 	github.com/go-openapi/jsonreference v0.20.2 // indirect
 	github.com/go-openapi/swag v0.23.0 // indirect
-	github.com/go-sql-driver/mysql v1.9.3 // indirect
 	github.com/go-viper/mapstructure/v2 v2.4.0 // indirect
 	github.com/godbus/dbus/v5 v5.1.0 // indirect
 	github.com/gofrs/flock v0.12.1 // indirect
@@ -166,14 +142,9 @@ require (
 	github.com/golang-jwt/jwt/v5 v5.3.1 // indirect
 	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
 	github.com/golang/protobuf v1.5.4 // indirect
-	github.com/golang/snappy v0.0.4 // indirect
-	github.com/google/cel-go v0.28.1 // indirect
 	github.com/google/gnostic-models v0.6.8 // indirect
 	github.com/google/gofuzz v1.2.0 // indirect
-	github.com/google/s2a-go v0.1.9 // indirect
 	github.com/google/shlex v0.0.0-20191202100458-e7afc7fbc510 // indirect
-	github.com/googleapis/enterprise-certificate-proxy v0.3.15 // indirect
-	github.com/googleapis/gax-go/v2 v2.22.0 // indirect
 	github.com/gorilla/handlers v1.5.2 // indirect
 	github.com/gorilla/mux v1.8.1 // indirect
 	github.com/gorilla/websocket v1.5.3 // indirect
@@ -184,15 +155,11 @@ require (
 	github.com/hashicorp/go-version v1.7.0 // indirect
 	github.com/hashicorp/golang-lru/arc/v2 v2.0.7 // indirect
 	github.com/hashicorp/golang-lru/v2 v2.0.7 // indirect
-	github.com/huandu/xstrings v1.5.0 // indirect
+	github.com/hashicorp/hcl v1.0.1-vault-7 // indirect
 	github.com/in-toto/in-toto-golang v0.9.0 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/inhies/go-bytesize v0.0.0-20220417184213-4913239db9cf // indirect
 	github.com/ishidawataru/sctp v0.0.0-20230406120618-7ff4192f6ff2 // indirect
-	github.com/jackc/pgpassfile v1.0.0 // indirect
-	github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect
-	github.com/jackc/pgx/v5 v5.9.2 // indirect
-	github.com/jackc/puddle/v2 v2.2.2 // indirect
 	github.com/jonboulle/clockwork v0.5.0 // indirect
 	github.com/josharian/intern v1.0.0 // indirect
 	github.com/josharian/native v1.1.0 // indirect
@@ -205,7 +172,6 @@ require (
 	github.com/libdns/libdns v1.1.1 // indirect
 	github.com/lucasb-eyer/go-colorful v1.4.0 // indirect
 	github.com/mailru/easyjson v0.7.7 // indirect
-	github.com/manifoldco/promptui v0.9.0 // indirect
 	github.com/mattn/go-colorable v0.1.14 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/mattn/go-runewidth v0.0.23 // indirect
@@ -213,13 +179,9 @@ require (
 	github.com/mdlayher/netlink v1.7.2 // indirect
 	github.com/mdlayher/socket v0.5.1 // indirect
 	github.com/mgutz/ansi v0.0.0-20200706080929-d51e80ef957d // indirect
-	github.com/mholt/acmez/v3 v3.1.6 // indirect
 	github.com/miekg/pkcs11 v1.1.2 // indirect
-	github.com/mitchellh/copystructure v1.2.0 // indirect
 	github.com/mitchellh/go-homedir v1.1.0 // indirect
-	github.com/mitchellh/go-ps v1.0.0 // indirect
 	github.com/mitchellh/hashstructure/v2 v2.0.2 // indirect
-	github.com/mitchellh/reflectwalk v1.0.2 // indirect
 	github.com/moby/buildkit v0.25.0 // indirect
 	github.com/moby/docker-image-spec v1.3.1 // indirect
 	github.com/moby/go-archive v0.1.0 // indirect
@@ -245,9 +207,7 @@ require (
 	github.com/opencontainers/runtime-spec v1.2.1 // indirect
 	github.com/opencontainers/selinux v1.12.0 // indirect
 	github.com/opentracing/opentracing-go v1.2.0 // indirect
-	github.com/pbnjay/memory v0.0.0-20210728143218-7b4eea64cf58 // indirect
 	github.com/pelletier/go-toml v1.9.5 // indirect
-	github.com/pires/go-proxyproto v0.12.0 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/planetscale/vtprotobuf v0.6.1-0.20240319094008-0393e58bdf10 // indirect
 	github.com/prometheus/client_model v0.6.3 // indirect
@@ -261,28 +221,17 @@ require (
 	github.com/redis/go-redis/v9 v9.7.3 // indirect
 	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
 	github.com/rivo/uniseg v0.4.7 // indirect
-	github.com/rs/xid v1.6.0 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
 	github.com/santhosh-tekuri/jsonschema/v6 v6.0.2 // indirect
 	github.com/secure-systems-lab/go-securesystemslib v0.6.0 // indirect
 	github.com/serialx/hashring v0.0.0-20200727003509-22c0c7ab6b1b // indirect
 	github.com/shibumi/go-pathspec v1.3.0 // indirect
-	github.com/shopspring/decimal v1.4.0 // indirect
-	github.com/shurcooL/sanitized_anchor_name v1.0.0 // indirect
 	github.com/sirupsen/logrus v1.9.4 // indirect
 	github.com/skratchdot/open-golang v0.0.0-20200116055534-eef842397966 // indirect
-	github.com/slackhq/nebula v1.10.3 // indirect
-	github.com/smallstep/certificates v0.30.2 // indirect
-	github.com/smallstep/cli-utils v0.12.2 // indirect
-	github.com/smallstep/linkedca v0.25.0 // indirect
-	github.com/smallstep/nosql v0.8.0 // indirect
-	github.com/smallstep/pkcs7 v0.2.1 // indirect
-	github.com/smallstep/scep v0.0.0-20250318231241-a25cabb69492 // indirect
-	github.com/smallstep/truststore v0.13.0 // indirect
-	github.com/spf13/cast v1.7.0 // indirect
+	github.com/spf13/afero v1.14.0 // indirect
+	github.com/spf13/viper v1.12.0 // indirect
 	github.com/stretchr/objx v0.5.3 // indirect
-	github.com/tailscale/go-winio v0.0.0-20231025203758-c4f33415bf55 // indirect
-	github.com/tailscale/tscert v0.0.0-20251216020129-aea342f6d747 // indirect
+	github.com/subosito/gotenv v1.4.1 // indirect
 	github.com/theupdateframework/notary v0.7.0 // indirect
 	github.com/tilt-dev/fsnotify v1.4.8-0.20220602155310-fff9c274a375 // indirect
 	github.com/tonistiigi/dchapes-mode v0.0.0-20250318174251-73d941a28323 // indirect
@@ -290,7 +239,6 @@ require (
 	github.com/tonistiigi/go-csvvalue v0.0.0-20240814133006-030d3b2625d0 // indirect
 	github.com/tonistiigi/units v0.0.0-20180711220420-6950e57a87ea // indirect
 	github.com/tonistiigi/vt100 v0.0.0-20240514184818-90bafcd6abab // indirect
-	github.com/urfave/cli v1.22.17 // indirect
 	github.com/vbatts/tar-split v0.12.1 // indirect
 	github.com/vishvananda/netns v0.0.5 // indirect
 	github.com/x448/float16 v0.8.4 // indirect
@@ -298,7 +246,6 @@ require (
 	github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e // indirect
 	github.com/zclconf/go-cty v1.17.0 // indirect
 	github.com/zeebo/blake3 v0.2.4 // indirect
-	go.etcd.io/bbolt v1.4.3 // indirect
 	go.opencensus.io v0.24.0 // indirect
 	go.opentelemetry.io/auto/sdk v1.2.1 // indirect
 	go.opentelemetry.io/contrib/bridges/prometheus v0.68.0 // indirect
@@ -325,29 +272,22 @@ require (
 	go.opentelemetry.io/otel/sdk/metric v1.43.0 // indirect
 	go.opentelemetry.io/otel/trace v1.43.0 // indirect
 	go.opentelemetry.io/proto/otlp v1.10.0 // indirect
-	go.step.sm/crypto v0.81.0 // indirect
-	go.uber.org/automaxprocs v1.6.0 // indirect
 	go.uber.org/mock v0.6.0 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
 	go.uber.org/zap v1.28.0 // indirect
 	go.uber.org/zap/exp v0.3.0 // indirect
 	go.yaml.in/yaml/v3 v3.0.5 // indirect
-	golang.org/x/crypto/x509roots/fallback v0.0.0-20260213171211-a408498e5541 // indirect
-	golang.org/x/exp v0.0.0-20251023183803-a4bb9ffd2546 // indirect
 	golang.org/x/oauth2 v0.36.0 // indirect
 	golang.org/x/text v0.42.0 // indirect
 	golang.org/x/time v0.16.0 // indirect
 	golang.org/x/tools v0.50.0 // indirect
 	golang.zx2c4.com/wireguard v0.0.0-20231211153847-12269c276173 // indirect
-	google.golang.org/api v0.277.0 // indirect
 	google.golang.org/genproto/googleapis/api v0.0.0-20260406210006-6f92a3bedf2d // indirect
-	google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.5.1 // indirect
 	gopkg.in/evanphx/json-patch.v4 v4.12.0 // indirect
 	gopkg.in/inf.v0 v0.9.1 // indirect
 	gopkg.in/ini.v1 v1.67.0 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
-	howett.net/plist v1.0.0 // indirect
 	k8s.io/api v0.32.3 // indirect
 	k8s.io/apimachinery v0.32.3 // indirect
 	k8s.io/client-go v0.32.3 // indirect
@@ -361,5 +301,3 @@ require (
 	sigs.k8s.io/structured-merge-diff/v4 v4.4.2 // indirect
 	sigs.k8s.io/yaml v1.4.0 // indirect
 )
-
-replace charm.land/bubbletea/v2 => github.com/unlabs-dev/bubbletea/v2 v2.0.8-uncloud.1

go.sum

@@ -1,32 +1,14 @@
-cel.dev/expr v0.25.1 h1:1KrZg61W6TWSxuNZ37Xy49ps13NUovb66QLprthtwi4=
-cel.dev/expr v0.25.1/go.mod h1:hrXvqGP6G6gyx8UAHSHJ5RGk//1Oj5nXQ2NI02Nrsg4=
 charm.land/bubbles/v2 v2.0.0 h1:tE3eK/pHjmtrDiRdoC9uGNLgpopOd8fjhEe31B/ai5s=
 charm.land/bubbles/v2 v2.0.0/go.mod h1:rCHoleP2XhU8um45NTuOWBPNVHxnkXKTiZqcclL/qOI=
+charm.land/bubbletea/v2 v2.0.10 h1:oolvo20VBpI0PfqE7iFjkZ1bx0WpmXGfnKz5Yldjq5o=
+charm.land/bubbletea/v2 v2.0.10/go.mod h1:QOatcnhOjYIfxzUSTz6raF7Ex4R/rIuHa3SnBdCCpMc=
 charm.land/huh/v2 v2.0.1 h1:9vhBjlIDuikdPKH+qnoG++GERVxqY0Lkv14xW57lj98=
 charm.land/huh/v2 v2.0.1/go.mod h1:93eEveeeqn47MwiC3tf+2atZ2l7Is88rAtmZNZ8x9Wc=
 charm.land/lipgloss/v2 v2.0.1 h1:6Xzrn49+Py1Um5q/wZG1gWgER2+7dUyZ9XMEufqPSys=
 charm.land/lipgloss/v2 v2.0.1/go.mod h1:KjPle2Qd3YmvP1KL5OMHiHysGcNwq6u83MUjYkFvEkM=
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-cloud.google.com/go v0.123.0 h1:2NAUJwPR47q+E35uaJeYoNhuNEM9kM8SjgRgdeOJUSE=
-cloud.google.com/go v0.123.0/go.mod h1:xBoMV08QcqUGuPW65Qfm1o9Y4zKZBpGS+7bImXLTAZU=
-cloud.google.com/go/auth v0.20.0 h1:kXTssoVb4azsVDoUiF8KvxAqrsQcQtB53DcSgta74CA=
-cloud.google.com/go/auth v0.20.0/go.mod h1:942/yi/itH1SsmpyrbnTMDgGfdy2BUqIKyd0cyYLc5Q=
-cloud.google.com/go/auth/oauth2adapt v0.2.8 h1:keo8NaayQZ6wimpNSmW5OPc283g65QNIiLpZnkHRbnc=
-cloud.google.com/go/auth/oauth2adapt v0.2.8/go.mod h1:XQ9y31RkqZCcwJWNSx2Xvric3RrU88hAYYbjDWYDL+c=
-cloud.google.com/go/compute/metadata v0.9.0 h1:pDUj4QMoPejqq20dK0Pg2N4yG9zIkYGdBtwLoEkH9Zs=
-cloud.google.com/go/compute/metadata v0.9.0/go.mod h1:E0bWwX5wTnLPedCKqk3pJmVgCBSM6qQI1yTBdEb3C10=
-cloud.google.com/go/iam v1.7.0 h1:JD3zh0C6LHl16aCn5Akff0+GELdp1+4hmh6ndoFLl8U=
-cloud.google.com/go/iam v1.7.0/go.mod h1:tetWZW1PD/m6vcuY2Zj/aU0eCHNPuxedbnbRTyKXvdY=
-cloud.google.com/go/kms v1.31.0 h1:LS8N92OxFDgOLg5NCo3OmbvjtQAIVT5gUHVLKIDHaFE=
-cloud.google.com/go/kms v1.31.0/go.mod h1:YIyXZym11R5uovJJt4oN5eUL3oPmirF3yKeIh6QAf4U=
-cloud.google.com/go/longrunning v0.9.0 h1:0EzbDEGsAvOZNbqXopgniY0w0a1phvu5IdUFq8grmqY=
-cloud.google.com/go/longrunning v0.9.0/go.mod h1:pkTz846W7bF4o2SzdWJ40Hu0Re+UoNT6Q5t+igIcb8E=
 code.pfad.fr/check v1.1.0 h1:GWvjdzhSEgHvEHe2uJujDcpmZoySKuHQNrZMfzfO0bE=
 code.pfad.fr/check v1.1.0/go.mod h1:NiUH13DtYsb7xp5wll0U4SXx7KhXQVCtRgdC96IPfoM=
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@@ -34,30 +16,19 @@ github.com/AdaLogics/go-fuzz-headers v0.0.0-20240806141605-e8a1dd7889d6 h1:He8af
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@@ -66,9 +37,6 @@ github.com/Microsoft/hcsshim v0.13.0 h1:/BcXOiS6Qi7N9XqUcv27vkIuVOkBEcWstd2pMlWS
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@@ -83,15 +51,10 @@ github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuy
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@@ -112,8 +75,6 @@ github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.13.9 h1:FLudkZL
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@@ -158,22 +119,18 @@ github.com/caddyserver/zerossl v0.1.5 h1:dkvOjBAEEtY6LIGAHei7sw2UgqSD6TrWweXpV7l
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@@ -194,15 +151,6 @@ github.com/charmbracelet/x/windows v0.2.2 h1:IofanmuvaxnKHuV04sC0eBy/smG6kIKrWG2
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@@ -210,8 +158,6 @@ github.com/clipperhouse/uax29/v2 v2.7.0 h1:+gs4oBZ2gPfVrKPthwbMzWZDaAFPGYK72F0NJ
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@@ -247,14 +193,8 @@ github.com/containerd/ttrpc v1.2.7 h1:qIrroQvuOL9HQ1X6KHe2ohc7p+HP/0VE6XPU7elJRq
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-github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
-github.com/coreos/go-etcd v2.0.0+incompatible/go.mod h1:Jez6KQU2B/sWsbdaef3ED8NzMklzPG4d5KIOhIy30Tk=
-github.com/coreos/go-oidc/v3 v3.17.0 h1:hWBGaQfbi0iVviX4ibC7bk8OKT5qNr4klBaCHVNvehc=
-github.com/coreos/go-oidc/v3 v3.17.0/go.mod h1:wqPbKFrVnE90vty060SB40FCJ8fTHTxSwyXJqZH+sI8=
-github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
 github.com/coreos/go-systemd v0.0.0-20191104093116-d3cd4ed1dbcf h1:iW4rZ826su+pqaw19uhpSCzhj44qo35pNgKFGqzDKkU=
 github.com/coreos/go-systemd v0.0.0-20191104093116-d3cd4ed1dbcf/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
-github.com/cpuguy83/go-md2man v1.0.10/go.mod h1:SmD6nW6nTyfqj6ABTjUi3V3JVMnlJmwcJI5acqYI6dE=
 github.com/cpuguy83/go-md2man/v2 v2.0.6/go.mod h1:oOW0eioCTA6cOiMLiUPZOpcVxMig6NIQQ7OS05n1F4g=
 github.com/cpuguy83/go-md2man/v2 v2.0.7 h1:zbFlGlXEAKlwXpmvle3d8Oe3YnkKIK4xSRTd3sHPnBo=
 github.com/cpuguy83/go-md2man/v2 v2.0.7/go.mod h1:oOW0eioCTA6cOiMLiUPZOpcVxMig6NIQQ7OS05n1F4g=
@@ -269,17 +209,6 @@ github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc/go.mod h1:J7Y8Yc
 github.com/deckarep/golang-set/v2 v2.8.0 h1:swm0rlPCmdWn9mESxKOjWk8hXSqoxOp+ZlfuyaAdFlQ=
 github.com/deckarep/golang-set/v2 v2.8.0/go.mod h1:VAky9rY/yGXJOLEDv3OMci+7wtDpOF4IN+y82NBOac4=
 github.com/denisenkom/go-mssqldb v0.0.0-20191128021309-1d7a30a10f73/go.mod h1:xbL0rPBG9cCiLr28tMa8zpbdarY27NDyej4t/EjAShU=
-github.com/dgraph-io/badger v1.6.2 h1:mNw0qs90GVgGGWylh0umH5iag1j6n/PeJtNvL6KY/x8=
-github.com/dgraph-io/badger v1.6.2/go.mod h1:JW2yswe3V058sS0kZ2h/AXeDSqFjxnZcRrVH//y2UQE=
-github.com/dgraph-io/badger/v2 v2.2007.4 h1:TRWBQg8UrlUhaFdco01nO2uXwzKS7zd+HVdwV/GHc4o=
-github.com/dgraph-io/badger/v2 v2.2007.4/go.mod h1:vSw/ax2qojzbN6eXHIx6KPKtCSHJN/Uz0X0VPruTIhk=
-github.com/dgraph-io/ristretto v0.0.2/go.mod h1:KPxhHT9ZxKefz+PCeOGsrHpl1qZ7i70dGTu2u+Ahh6E=
-github.com/dgraph-io/ristretto v0.0.3-0.20200630154024-f66de99634de/go.mod h1:KPxhHT9ZxKefz+PCeOGsrHpl1qZ7i70dGTu2u+Ahh6E=
-github.com/dgraph-io/ristretto v0.2.0 h1:XAfl+7cmoUDWW/2Lx8TGZQjjxIQ2Ley9DSf52dru4WE=
-github.com/dgraph-io/ristretto v0.2.0/go.mod h1:8uBHCU/PBV4Ag0CJrP47b9Ofby5dqWNh4FicAdoqFNU=
-github.com/dgryski/go-farm v0.0.0-20190423205320-6a90982ecee2/go.mod h1:SqUrOPUnsFjfmXRMNPybcSiG0BgUW2AuFH8PAnS2iTw=
-github.com/dgryski/go-farm v0.0.0-20200201041132-a6ae2369ad13 h1:fAjc9m62+UWV/WAFKLNi6ZS0675eEUC9y3AlwSbQu1Y=
-github.com/dgryski/go-farm v0.0.0-20200201041132-a6ae2369ad13/go.mod h1:SqUrOPUnsFjfmXRMNPybcSiG0BgUW2AuFH8PAnS2iTw=
 github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f h1:lO4WD4F/rVNCu3HqELle0jiPLLBs70cWOduZpkS1E78=
 github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f/go.mod h1:cuUVRXasLTGF7a8hSLbxyZXjz+1KgoB3wDUb6vlszIc=
 github.com/distribution/distribution/v3 v3.0.0 h1:q4R8wemdRQDClzoNNStftB2ZAfqOiN6UX90KJc4HjyM=
@@ -317,7 +246,6 @@ github.com/docker/go-units v0.5.0 h1:69rxXcBk27SvSaaxTtLh/8llcHD8vYHT7WSdRZ/jvr4
 github.com/docker/go-units v0.5.0/go.mod h1:fgPhTUdO+D/Jk86RDLlptpiXQzgHJF7gydDDbaIK4Dk=
 github.com/docker/libtrust v0.0.0-20160708172513-aabc10ec26b7 h1:UhxFibDNY/bfvqU5CAUmr9zpesgbU6SWc8/B4mflAE4=
 github.com/docker/libtrust v0.0.0-20160708172513-aabc10ec26b7/go.mod h1:cyGadeNEkKy96OOhEzfZl+yxihPEzKnqJwvfuSUqbZE=
-github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
 github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
 github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
 github.com/dvsekhvalnov/jose2go v0.0.0-20170216131308-f21a8cedbbae/go.mod h1:7BvyPhdbLxMXIYTFPLsyJRFMsKmOZnQmzh6Gb+uquuM=
@@ -332,8 +260,6 @@ github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7
 github.com/erikstmartin/go-testdb v0.0.0-20160219214506-8d10e4a1bae5/go.mod h1:a2zkGnVExMxdzMo3M0Hi/3sEU+cWnZpSni0O6/Yb/P0=
 github.com/felixge/httpsnoop v1.0.4 h1:NFTV2Zj1bL4mc9sqWACXbQFVBBg2W3GPvqp8/ESS2Wg=
 github.com/felixge/httpsnoop v1.0.4/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U=
-github.com/frankban/quicktest v1.14.6 h1:7Xjx+VpznH+oBnejlPUj8oUpdxnVs4f8XU8WnHkI4W8=
-github.com/frankban/quicktest v1.14.6/go.mod h1:4ptaffx2x8+WTWXmUCuVU6aPUX1/Mz7zb5vbUoiM6w0=
 github.com/fsnotify/fsevents v0.2.0 h1:BRlvlqjvNTfogHfeBOFvSC9N0Ddy+wzQCQukyoD7o/c=
 github.com/fsnotify/fsevents v0.2.0/go.mod h1:B3eEk39i4hz8y1zaWS/wPrAP4O6wkIl7HQwKBr1qH/w=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
@@ -343,8 +269,6 @@ github.com/fvbommel/sortorder v1.1.0 h1:fUmoe+HLsBTctBDoaBwpQo5N+nrCp8g/BjKb/6ZQ
 github.com/fvbommel/sortorder v1.1.0/go.mod h1:uk88iVf1ovNn1iLfgUVU2F9o5eO30ui720w+kxuqRs0=
 github.com/fxamacker/cbor/v2 v2.9.0 h1:NpKPmjDBgUfBms6tr6JZkTHtfFGcMKsw3eGcmD/sapM=
 github.com/fxamacker/cbor/v2 v2.9.0/go.mod h1:vM4b+DJCtHn+zz7h3FFp/hDAI9WNWCsZj23V5ytsSxQ=
-github.com/go-jose/go-jose/v3 v3.0.5 h1:BLLJWbC4nMZOfuPVxoZIxeYsn6Nl2r1fITaJ78UQlVQ=
-github.com/go-jose/go-jose/v3 v3.0.5/go.mod h1:5b+7YgP7ZICgJDBdfjZaIt+H/9L9T/YQrVfLAMboGkQ=
 github.com/go-jose/go-jose/v4 v4.1.4 h1:moDMcTHmvE6Groj34emNPLs/qtYXRVcd6S7NHbHz3kA=
 github.com/go-jose/go-jose/v4 v4.1.4/go.mod h1:x4oUasVrzR7071A4TnHLGSPpNOm2a21K9Kf04k1rs08=
 github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
@@ -403,13 +327,6 @@ github.com/golang/protobuf v1.4.1/go.mod h1:U8fpvMrcmy5pZrNK1lt4xCsGvpyWQ/VVv6QD
 github.com/golang/protobuf v1.4.3/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
 github.com/golang/protobuf v1.5.4 h1:i7eJL8qZTpSEXOPTxNKhASYpMn+8e5Q6AdndVa1dWek=
 github.com/golang/protobuf v1.5.4/go.mod h1:lnTiLA8Wa4RWRcIUkrtSVa5nRhsEGBg48fD6rSs7xps=
-github.com/golang/snappy v0.0.3/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
-github.com/golang/snappy v0.0.4 h1:yAGX7huGHXlcLOEtBnF4w7FQwA26wojNCwOYAEhLjQM=
-github.com/golang/snappy v0.0.4/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
-github.com/google/btree v1.1.2 h1:xf4v41cLI2Z6FxbKm+8Bu+m8ifhj15JuZ9sa0jZCMUU=
-github.com/google/btree v1.1.2/go.mod h1:qOPhT0dTNdNzV6Z/lhRX0YXUafgPLFUh+gZMl761Gm4=
-github.com/google/cel-go v0.28.1 h1:YWIwi77J4xIsYUwAF/iIuS6haffzIHS8yWI8glSbLWM=
-github.com/google/cel-go v0.28.1/go.mod h1:X0bD6iVNR8pkROSOoHVdgTkzmRcosof7WQqCD6wcMc8=
 github.com/google/certificate-transparency-go v1.0.10-0.20180222191210-5ab67e519c93/go.mod h1:QeJfpSbVSfYc7RgB3gJFj9cbuQMMchQxrWXz8Ruopmg=
 github.com/google/certificate-transparency-go v1.1.8-0.20240110162603-74a5dd331745 h1:heyoXNxkRT155x4jTAiSv5BVSVkueifPUm+Q8LUXMRo=
 github.com/google/certificate-transparency-go v1.1.8-0.20240110162603-74a5dd331745/go.mod h1:zN0wUQgV9LjwLZeFHnrAbQi8hzMVvEWePyk+MhPOk7k=
@@ -422,33 +339,20 @@ github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/
 github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.3/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
-github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
 github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
 github.com/google/go-containerregistry v0.20.2 h1:B1wPJ1SN/S7pB+ZAimcciVD+r+yV/l/DSArMxlbwseo=
 github.com/google/go-containerregistry v0.20.2/go.mod h1:z38EKdKh4h7IP2gSfUUqEvalZBqs6AoLeWfUy34nQC8=
-github.com/google/go-tpm v0.9.8 h1:slArAR9Ft+1ybZu0lBwpSmpwhRXaa85hWtMinMyRAWo=
-github.com/google/go-tpm v0.9.8/go.mod h1:h9jEsEECg7gtLis0upRBQU+GhYVH6jMjrFxI8u6bVUY=
-github.com/google/go-tpm-tools v0.4.8 h1:V4oIYyAD3BykOycwYQzO29WefDouQMTsYZqmG3HxOfM=
-github.com/google/go-tpm-tools v0.4.8/go.mod h1:4DfiOtiS1KppJjwf1+tqtW4K3PrCJjAAqFKj/TYTJKg=
-github.com/google/go-tspi v0.3.0 h1:ADtq8RKfP+jrTyIWIZDIYcKOMecRqNJFOew2IT0Inus=
-github.com/google/go-tspi v0.3.0/go.mod h1:xfMGI3G0PhxCdNVcYr1C4C+EizojDg/TXuX5by8CiHI=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
 github.com/google/gofuzz v1.2.0 h1:xRy4A+RhZaiKjJ1bPfwQ8sedCA+YS2YcCHW6ec7JMi0=
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 github.com/google/pprof v0.0.0-20250403155104-27863c87afa6 h1:BHT72Gu3keYf3ZEu2J0b1vyeLSOYI8bm5wbJM/8yDe8=
 github.com/google/pprof v0.0.0-20250403155104-27863c87afa6/go.mod h1:boTsfXsheKC2y+lKOCMpSfarhxDeIzfZG1jqGcPl3cA=
-github.com/google/s2a-go v0.1.9 h1:LGD7gtMgezd8a/Xak7mEWL0PjoTQFvpRudN895yqKW0=
-github.com/google/s2a-go v0.1.9/go.mod h1:YA0Ei2ZQL3acow2O62kdp9UlnvMmU7kA6Eutn0dXayM=
 github.com/google/shlex v0.0.0-20191202100458-e7afc7fbc510 h1:El6M4kTTCOh6aBiKaUGG7oYTSPP8MxqL4YI3kZKwcP4=
 github.com/google/shlex v0.0.0-20191202100458-e7afc7fbc510/go.mod h1:pupxD2MaaD3pAXIBCelhxNneeOaAeabZDe5s4K6zSpQ=
 github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
-github.com/googleapis/enterprise-certificate-proxy v0.3.15 h1:xolVQTEXusUcAA5UgtyRLjelpFFHWlPQ4XfWGc7MBas=
-github.com/googleapis/enterprise-certificate-proxy v0.3.15/go.mod h1:vqVt9yG9480NtzREnTlmGSBmFrA+bzb0yl0TxoBQXOg=
-github.com/googleapis/gax-go/v2 v2.22.0 h1:PjIWBpgGIVKGoCXuiCoP64altEJCj3/Ei+kSU5vlZD4=
-github.com/googleapis/gax-go/v2 v2.22.0/go.mod h1:irWBbALSr0Sk3qlqb9SyJ1h68WjgeFuiOzI4Rqw5+aY=
 github.com/gorilla/handlers v1.5.2 h1:cLTUSsNkgcwhgRqvCNmdbRWG0A3N4F+M2nWKdScwyEE=
 github.com/gorilla/handlers v1.5.2/go.mod h1:dX+xVpaxdSw+q0Qek8SSsl3dfMk3jNddUkMzo0GtH0w=
 github.com/gorilla/mux v1.7.0/go.mod h1:1lud6UwP+6orDFRuTfBEV8e9/aOM/c4fVVCaMa2zaAs=
@@ -473,7 +377,6 @@ github.com/hashicorp/golang-lru/arc/v2 v2.0.7 h1:QxkVTxwColcduO+LP7eJO56r2hFiG8z
 github.com/hashicorp/golang-lru/arc/v2 v2.0.7/go.mod h1:Pe7gBlGdc8clY5LJ0LpJXMt5AmgmWNH1g+oFFVUHOEc=
 github.com/hashicorp/golang-lru/v2 v2.0.7 h1:a+bsQ5rvGLjzHuww6tVxozPZFVghXaHOwFs4luLUK2k=
 github.com/hashicorp/golang-lru/v2 v2.0.7/go.mod h1:QeFd9opnmA6QUJc5vARoKUSoFhyfM2/ZepoAG6RGpeM=
-github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
 github.com/hashicorp/hcl v1.0.1-vault-7 h1:ag5OxFVy3QYTFTJODRzTKVZ6xvdfLLCA1cy/Y6xGI0I=
 github.com/hashicorp/hcl v1.0.1-vault-7/go.mod h1:XYhtn6ijBSAj6n4YqAaf7RBPS4I06AItNorpy+MoQNM=
 github.com/hexops/gotextdiff v1.0.3 h1:gitA9+qJrrTCsiCl7+kh75nPqQt1cx4ZkudSTLoUqJM=
@@ -481,8 +384,6 @@ github.com/hexops/gotextdiff v1.0.3/go.mod h1:pSWU5MAI3yDq+fZBTazCSJysOMbxWL1BSo
 github.com/hinshun/vt10x v0.0.0-20220119200601-820417d04eec h1:qv2VnGeEQHchGaZ/u7lxST/RaJw+cv273q79D81Xbog=
 github.com/hinshun/vt10x v0.0.0-20220119200601-820417d04eec/go.mod h1:Q48J4R4DvxnHolD5P8pOtXigYlRuPLGl6moFx3ulM68=
 github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
-github.com/huandu/xstrings v1.5.0 h1:2ag3IFq9ZDANvthTwTiqSSZLjDc+BedvHPAp5tJy2TI=
-github.com/huandu/xstrings v1.5.0/go.mod h1:y5/lhBue+AyNmUVz9RLU9xbLR0o4KIIExikq4ovT0aE=
 github.com/in-toto/in-toto-golang v0.9.0 h1:tHny7ac4KgtsfrG6ybU8gVOZux2H8jN05AXJ9EBM1XU=
 github.com/in-toto/in-toto-golang v0.9.0/go.mod h1:xsBVrVsHNsB61++S6Dy2vWosKhuA3lUTQd+eF9HdeMo=
 github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
@@ -492,15 +393,6 @@ github.com/inhies/go-bytesize v0.0.0-20220417184213-4913239db9cf h1:FtEj8sfIcaaB
 github.com/inhies/go-bytesize v0.0.0-20220417184213-4913239db9cf/go.mod h1:yrqSXGoD/4EKfF26AOGzscPOgTTJcyAwM2rpixWT+t4=
 github.com/ishidawataru/sctp v0.0.0-20230406120618-7ff4192f6ff2 h1:i2fYnDurfLlJH8AyyMOnkLHnHeP8Ff/DDpuZA/D3bPo=
 github.com/ishidawataru/sctp v0.0.0-20230406120618-7ff4192f6ff2/go.mod h1:co9pwDoBCm1kGxawmb4sPq0cSIOOWNPT4KnHotMP1Zg=
-github.com/jackc/pgpassfile v1.0.0 h1:/6Hmqy13Ss2zCq62VdNG8tM1wchn8zjSGOBJ6icpsIM=
-github.com/jackc/pgpassfile v1.0.0/go.mod h1:CEx0iS5ambNFdcRtxPj5JhEz+xB6uRky5eyVu/W2HEg=
-github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 h1:iCEnooe7UlwOQYpKFhBabPMi4aNAfoODPEFNiAnClxo=
-github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761/go.mod h1:5TJZWKEWniPve33vlWYSoGYefn3gLQRzjfDlhSJ9ZKM=
-github.com/jackc/pgx/v5 v5.9.2 h1:3ZhOzMWnR4yJ+RW1XImIPsD1aNSz4T4fyP7zlQb56hw=
-github.com/jackc/pgx/v5 v5.9.2/go.mod h1:mal1tBGAFfLHvZzaYh77YS/eC6IX9OWbRV1QIIM0Jn4=
-github.com/jackc/puddle/v2 v2.2.2 h1:PR8nw+E/1w0GLuRFSmiioY6UooMp6KJv0/61nB7icHo=
-github.com/jackc/puddle/v2 v2.2.2/go.mod h1:vriiEXHvEE654aYKXXjOvZM39qJ0q+azkZFrfEOc3H4=
-github.com/jessevdk/go-flags v1.4.0/go.mod h1:4FA24M0QyGHXBuZZK/XkWh8h0e1EYbRYJSGM75WSRxI=
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@@ -524,7 +416,6 @@ github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51 h1:Z9n2FFNU
 github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51/go.mod h1:CzGEWj7cYgsdH8dAjBGEr58BoE7ScuLd+fwFZ44+/x8=
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@@ -533,7 +424,6 @@ github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxv
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@@ -559,13 +449,10 @@ github.com/libdns/libdns v1.1.1/go.mod h1:4Bj9+5CQiNMVGf87wjX4CY3HQJypUHRuLvlsfs
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@@ -598,20 +485,13 @@ github.com/miekg/pkcs11 v1.1.2 h1:/VxmeAX5qU6Q3EwafypogwWbYryHFmF2RpkJmw3m4MQ=
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@@ -682,18 +562,10 @@ github.com/opencontainers/selinux v1.12.0/go.mod h1:BTPX+bjVbWGXw7ZZWUbdENt8w0ht
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@@ -701,8 +573,6 @@ github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINE
 github.com/planetscale/vtprotobuf v0.6.1-0.20240319094008-0393e58bdf10 h1:GFCKgmp0tecUJ0sJuv4pzYCqS9+RGSn52M3FUwPs+uo=
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@@ -749,25 +619,16 @@ github.com/rivo/uniseg v0.4.7 h1:WUdvkW8uEhrYfLC4ZzdpI2ztxP1I582+49Oc5Mq64VQ=
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@@ -777,53 +638,24 @@ github.com/sirupsen/logrus v1.9.4 h1:TsZE7l11zFCLZnZ+teH4Umoq5BhEIfIzfRDZ1Uzql2w
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-github.com/spaolacci/murmur3 v0.0.0-20180118202830-f09979ecbc72/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
-github.com/spaolacci/murmur3 v1.1.0 h1:7c1g84S4BPRrfL5Xrdp6fOJ206sU9y293DDHaoy0bLI=
-github.com/spaolacci/murmur3 v1.1.0/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
 github.com/spdx/tools-golang v0.5.5 h1:61c0KLfAcNqAjlg6UNMdkwpMernhw3zVRwDZ2x9XOmk=
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-github.com/spf13/afero v1.1.2/go.mod h1:j4pytiNVoe2o6bmDsKpLACNPDBIoEAkihy7loJ1B0CQ=
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 github.com/spf13/cast v0.0.0-20150508191742-4d07383ffe94/go.mod h1:r2rcYCSwa1IExKTDiTfzaxqT2FNHs8hODu4LnUfgKEg=
-github.com/spf13/cast v1.3.0/go.mod h1:Qx5cxh0v+4UWYiBimWS+eyWzqEqokIECu5etghLkUJE=
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-github.com/spf13/cobra v0.0.5/go.mod h1:3K3wKZymM7VvHMDS9+Akkh4K60UwM26emMESw8tLCHU=
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 github.com/spf13/jwalterweatherman v0.0.0-20141219030609-3d60171a6431/go.mod h1:cQK4TGJAtQXfYWX+Ddv3mKDzgVb68N+wFjFa4jdeBTo=
-github.com/spf13/jwalterweatherman v1.0.0/go.mod h1:cQK4TGJAtQXfYWX+Ddv3mKDzgVb68N+wFjFa4jdeBTo=
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 github.com/spf13/jwalterweatherman v1.1.0/go.mod h1:aNWZUN0dPAAO/Ljvb5BEdw96iTZ0EXowPYD95IqWIGo=
 github.com/spf13/pflag v1.0.0/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
-github.com/spf13/pflag v1.0.3/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
 github.com/spf13/pflag v1.0.9/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
 github.com/spf13/pflag v1.0.10 h1:4EBh2KAYBwaONj6b2Ye1GiHfwjqyROoF4RwYO+vPwFk=
 github.com/spf13/pflag v1.0.10/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
 github.com/spf13/viper v0.0.0-20150530192845-be5ff3e4840c/go.mod h1:A8kyI5cUJhb8N+3pkfONlcEcZbueH6nhAm0Fq7SrnBM=
-github.com/spf13/viper v1.3.2/go.mod h1:ZiWeW+zYFKm7srdB9IoDzzZXaJaI5eL9QjNiN/DMA2s=
 github.com/spf13/viper v1.12.0 h1:CZ7eSOd3kZoaYDLbXnmzgQI5RlciuXBMA+18HwHRfZQ=
 github.com/spf13/viper v1.12.0/go.mod h1:b6COn30jlNxbm/V2IqWiNWkJ+vZNiMNksliPCiuKtSI=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
@@ -831,7 +663,6 @@ github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+
 github.com/stretchr/objx v0.2.0/go.mod h1:qt09Ya8vawLte6SNmTgCsAVtYtaKzEcn8ATUoHMkEqE=
 github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
 github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
-github.com/stretchr/objx v0.5.2/go.mod h1:FRsXN1f5AsAjCGJKqEizvkpNtU+EGNCLh3NxZ/8L+MA=
 github.com/stretchr/objx v0.5.3 h1:jmXUvGomnU1o3W/V5h2VEradbpJDwGrzugQQvL0POH4=
 github.com/stretchr/objx v0.5.3/go.mod h1:rDQraq+vQZU7Fde9LOZLr8Tax6zZvy4kuNKF+QYS+U0=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
@@ -839,20 +670,13 @@ github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UV
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
 github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
-github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
 github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
-github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
-github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
 github.com/stretchr/testify v1.12.1 h1:EuwCh5fleGS7H32xRwO3wRGT7DxrDhLAT6FF8MpWDWE=
 github.com/stretchr/testify v1.12.1/go.mod h1:MDEgiDPPsNp5cuIrHPPCyornHKgEVbtFUmoNlxoYthg=
 github.com/subosito/gotenv v1.4.1 h1:jyEFiXpy21Wm81FBN71l9VoMMV8H8jG+qIK3GCpY6Qs=
 github.com/subosito/gotenv v1.4.1/go.mod h1:ayKnFf/c6rvx/2iiLrJUk1e6plDbT3edrFNGqEflhK0=
-github.com/tailscale/go-winio v0.0.0-20231025203758-c4f33415bf55 h1:Gzfnfk2TWrk8Jj4P4c1a3CtQyMaTVCznlkLZI++hok4=
-github.com/tailscale/go-winio v0.0.0-20231025203758-c4f33415bf55/go.mod h1:4k4QO+dQ3R5FofL+SanAUZe+/QfeK0+OIuwDIRu2vSg=
-github.com/tailscale/tscert v0.0.0-20251216020129-aea342f6d747 h1:RnBbFMmodYzhC6adOjTbtUQXyzV8dcvKYbolzs6Qch0=
-github.com/tailscale/tscert v0.0.0-20251216020129-aea342f6d747/go.mod h1:ejPAJui3kVK4u5TgMtqtXlWf5HnKh9fLy5kvpaeuas0=
 github.com/theupdateframework/notary v0.7.0 h1:QyagRZ7wlSpjT5N2qQAh/pN+DVqgekv4DzbAiAiEL3c=
 github.com/theupdateframework/notary v0.7.0/go.mod h1:c9DRxcmhHmVLDay4/2fUYdISnHqbFDGRSlXPO0AhYWw=
 github.com/tilt-dev/fsnotify v1.4.8-0.20220602155310-fff9c274a375 h1:QB54BJwA6x8QU9nHY3xJSZR2kX9bgpZekRKGkLTmEXA=
@@ -867,11 +691,6 @@ github.com/tonistiigi/units v0.0.0-20180711220420-6950e57a87ea h1:SXhTLE6pb6eld/
 github.com/tonistiigi/units v0.0.0-20180711220420-6950e57a87ea/go.mod h1:WPnis/6cRcDZSUvVmezrxJPkiO87ThFYsoUiMwWNDJk=
 github.com/tonistiigi/vt100 v0.0.0-20240514184818-90bafcd6abab h1:H6aJ0yKQ0gF49Qb2z5hI1UHxSQt4JMyxebFR15KnApw=
 github.com/tonistiigi/vt100 v0.0.0-20240514184818-90bafcd6abab/go.mod h1:ulncasL3N9uLrVann0m+CDlJKWsIAP34MPcOJF6VRvc=
-github.com/ugorji/go/codec v0.0.0-20181204163529-d75b2dcb6bc8/go.mod h1:VFNgLljTbGfSG7qAOspJ7OScBnGdDN/yBr0sguwnwf0=
-github.com/unlabs-dev/bubbletea/v2 v2.0.8-uncloud.1 h1:898LVw5QvmRX/y+pgzCo2pE/NbN9CZfdpiVnzAeAFDY=
-github.com/unlabs-dev/bubbletea/v2 v2.0.8-uncloud.1/go.mod h1:DGW2q8gvzHnOpMpZTORs0aySVHCox5C+2Svk0fci1qs=
-github.com/urfave/cli v1.22.17 h1:SYzXoiPfQjHBbkYxbew5prZHS1TOLT3ierW8SYLqtVQ=
-github.com/urfave/cli v1.22.17/go.mod h1:b0ht0aqgH/6pBYzzxURyrM4xXNgsoT/n2ZzwQiEhNVo=
 github.com/vbatts/tar-split v0.12.1 h1:CqKoORW7BUWBe7UL/iqTVvkTBOF8UvOMKOIZykxnnbo=
 github.com/vbatts/tar-split v0.12.1/go.mod h1:eF6B6i6ftWQcDqEn3/iGFRFRo8cBIMSJVOpnNdfTMFA=
 github.com/vishvananda/netlink v1.3.1 h1:3AEMt62VKqz90r0tmNhog0r/PpWKmrEShJU0wJW6bV0=
@@ -884,7 +703,6 @@ github.com/xhit/go-str2duration/v2 v2.1.0 h1:lxklc02Drh6ynqX+DdPyp5pCKLUQpRT8bp8
 github.com/xhit/go-str2duration/v2 v2.1.0/go.mod h1:ohY8p+0f07DiV6Em5LKB0s2YpLtXVyJfNt1+BlmyAsU=
 github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e h1:JVG44RsyaB9T2KIHavMF/ppJZNG9ZpyihvCd0w101no=
 github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e/go.mod h1:RbqR21r5mrJuqunuUZ/Dhy/avygyECGrLceyNeo4LiM=
-github.com/xordataexchange/crypt v0.0.3-0.20170626215501-b2862e3d0a77/go.mod h1:aYKd//L2LvnjZzWKhF00oedf4jCCReLcmhLdhm1A27Q=
 github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
@@ -896,8 +714,6 @@ github.com/zeebo/blake3 v0.2.4 h1:KYQPkhpRtcqh0ssGYcKLG1JYvddkEA8QwCM/yBqhaZI=
 github.com/zeebo/blake3 v0.2.4/go.mod h1:7eeQ6d2iXWRGF6npfaxl2CU+xy2Fjo2gxeyZGCRUjcE=
 github.com/zeebo/pcg v1.0.1 h1:lyqfGeWiv4ahac6ttHs+I5hwtH/+1mrhlCtVNQM2kHo=
 github.com/zeebo/pcg v1.0.1/go.mod h1:09F0S9iiKrwn9rlI5yjLkmrug154/YRW6KnnXVDM/l4=
-go.etcd.io/bbolt v1.4.3 h1:dEadXpI6G79deX5prL3QRNP6JB8UxVkqo4UPnHaNXJo=
-go.etcd.io/bbolt v1.4.3/go.mod h1:tKQlpPaYCVFctUIgFKFnAlvbmB3tpy1vkTnDWohtc0E=
 go.opencensus.io v0.24.0 h1:y73uSU6J157QMP2kn2r30vwW1A2W2WFwSCGnAVxeaD0=
 go.opencensus.io v0.24.0/go.mod h1:vNK8G9p7aAivkbmorf4v+7Hgx+Zs0yY+0fOtgBfjQKo=
 go.opentelemetry.io/auto/sdk v1.2.1 h1:jXsnJ4Lmnqd11kwkBV2LgLoFMZKizbCi5fNZ/ipaZ64=
@@ -952,10 +768,6 @@ go.opentelemetry.io/otel/trace v1.43.0 h1:BkNrHpup+4k4w+ZZ86CZoHHEkohws8AY+WTX09
 go.opentelemetry.io/otel/trace v1.43.0/go.mod h1:/QJhyVBUUswCphDVxq+8mld+AvhXZLhe+8WVFxiFff0=
 go.opentelemetry.io/proto/otlp v1.10.0 h1:IQRWgT5srOCYfiWnpqUYz9CVmbO8bFmKcwYxpuCSL2g=
 go.opentelemetry.io/proto/otlp v1.10.0/go.mod h1:/CV4QoCR/S9yaPj8utp3lvQPoqMtxXdzn7ozvvozVqk=
-go.step.sm/crypto v0.81.0 h1:e+ouzpNt3Xm4dp7HGXhgYB5y4iFik3vh3phHKWmvugU=
-go.step.sm/crypto v0.81.0/go.mod h1:fsTizqQeASjTXnbv9O00XtRlIuXRkCdoRiJNyXGQujc=
-go.uber.org/automaxprocs v1.6.0 h1:O3y2/QNTOdbF+e/dpXNNW7Rx2hZ4sTIPyybbxyNqTUs=
-go.uber.org/automaxprocs v1.6.0/go.mod h1:ifeIMSnPZuznNm6jmdzmU3/bfk01Fe2fotchwEFJ8r8=
 go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
 go.uber.org/goleak v1.3.0/go.mod h1:CoHD4mav9JJNrW/WLlf7HGZPjdw8EucARQHekz1X6bE=
 go.uber.org/mock v0.6.0 h1:hyF9dfmbgIX5EfOdasqLsWD6xqpNZlXblLB/Dbnwv3Y=
@@ -974,7 +786,6 @@ go.yaml.in/yaml/v3 v3.0.5/go.mod h1:HVTZu1O7/Vkt2N+BFy8Zza+lnLsABggaTM2ZpNIGuKg=
 go4.org/netipx v0.0.0-20231129151722-fdeea329fbba h1:0b9z3AuHCjxk0x/opv64kcgZLBseWJUpBw5I82+2U4M=
 go4.org/netipx v0.0.0-20231129151722-fdeea329fbba/go.mod h1:PLyyIXexvUFg3Owu6p/WfdlivPbZJsZdgWZlrGope/Y=
 golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
-golang.org/x/crypto v0.0.0-20181203042331-505ab145d0a9/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20190325154230-a5d413f7728c/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
@@ -982,14 +793,8 @@ golang.org/x/crypto v0.0.0-20200302210943-78000ba7a073/go.mod h1:LzIPMQfyMNhhGPh
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20201117144127-c1f2f97bffc9/go.mod h1:jdWPYTVW3xRLrWPugEBEK3UY2ZEsg3UU495nc5E+M+I=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
-golang.org/x/crypto v0.13.0/go.mod h1:y6Z2r+Rw4iayiXXAIxJIDAJ1zMW4yaTpebo8fPOliYc=
-golang.org/x/crypto v0.19.0/go.mod h1:Iy9bg/ha4yyC70EfRS8jz+B6ybOBKMaSxLj6P6oBDfU=
-golang.org/x/crypto v0.23.0/go.mod h1:CKFgDieR+mRhux2Lsu27y0fO304Db0wZe70UKqHu0v8=
-golang.org/x/crypto v0.33.0/go.mod h1:bVdXmD7IV/4GdElGPozy6U7lWdRXA4qyRVGJV57uQ5M=
 golang.org/x/crypto v0.57.0 h1:3ZVCjf8Ggz7zneR/EHRVx68Ctf+2pmIMP2UFhh9cC6M=
 golang.org/x/crypto v0.57.0/go.mod h1:Fdz0i5U6CoizGwLda9DttjSk6qlZo25zYNtR+ycvuZA=
-golang.org/x/crypto/x509roots/fallback v0.0.0-20260213171211-a408498e5541 h1:FmKxj9ocLKn45jiR2jQMwCVhDvaK7fKQFzfuT9GvyK8=
-golang.org/x/crypto/x509roots/fallback v0.0.0-20260213171211-a408498e5541/go.mod h1:+UoQFNBq2p2wO+Q6ddVtYc25GZ6VNdOMyyrd4nrqrKs=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20251023183803-a4bb9ffd2546 h1:mgKeJMpvi0yx/sU5GsxQ7p6s2wtOnGAHZWCHUM4KGzY=
 golang.org/x/exp v0.0.0-20251023183803-a4bb9ffd2546/go.mod h1:j/pmGrbnkbPtQfxEe5D0VQhZC6qKbfKifgD0oM7sR70=
@@ -999,10 +804,6 @@ golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHl
 golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
-golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
-golang.org/x/mod v0.12.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
-golang.org/x/mod v0.15.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
-golang.org/x/mod v0.17.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
 golang.org/x/mod v0.41.0 h1:qJmnOUb4YB+FsEuM3HcWucdZASCPGhsX6uljO6pog0c=
 golang.org/x/mod v0.41.0/go.mod h1:Ek9pY8RKWXwsWvd3rQiHYtMqkjSUV+s1Rj7j4H5Ur6o=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@@ -1019,11 +820,6 @@ golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwY
 golang.org/x/net v0.0.0-20201110031124-69a78807bb2b/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
 golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
-golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
-golang.org/x/net v0.10.0/go.mod h1:0qNGK6F8kojg2nk9dLZ2mShWaEBan6FAoqfSigmmuDg=
-golang.org/x/net v0.15.0/go.mod h1:idbUs1IY1+zTqbi8yxTbhexhEEk5ur9LInksu6HrEpk=
-golang.org/x/net v0.21.0/go.mod h1:bIjVDfnllIU7BJ2DNgfnXvpSvtn8VRwhlsaeUTyUS44=
-golang.org/x/net v0.25.0/go.mod h1:JkAGAh7GEvH74S6FOH42FLoXpXbE/aqXSrIQjXgsiwM=
 golang.org/x/net v0.59.0 h1:5zfYln+w5XCxwrnMMJPufRgNoXEaGxl0wo5GqPXyues=
 golang.org/x/net v0.59.0/go.mod h1:2DA/G1UfVbCpQPeWTmMPGY7Cs2PkBkwu743bVX5PIVg=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
@@ -1036,23 +832,15 @@ golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.3.0/go.mod h1:FU7BRWz2tNW+3quACPkgCx/L+uEAv1htQ0V83Z9Rj+Y=
-golang.org/x/sync v0.6.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
-golang.org/x/sync v0.7.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
-golang.org/x/sync v0.11.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
 golang.org/x/sync v0.23.0 h1:KameEIfc1IkluZyXWLn39Wd4tURc6GbCiISGiZm2bQk=
 golang.org/x/sync v0.23.0/go.mod h1:sUUOizhqBxiL6pEWpqNLUiaJn1ShEbZ6BBqskPbjZm0=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.0.0-20181122145206-62eef0e2fa9b/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.0.0-20181205085412-a5c9d58dba9a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20190626221950-04f50cda93cb/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190801041406-cbf593c0f2f3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191120155948-bd437916bb0e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -1061,44 +849,24 @@ golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20210331175145-43e1dd70ce54/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210616094352-59db8d763f22/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20220310020820-b874c991c1a5/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220412211240-33da011f77ad/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.1.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.2.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.10.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.17.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
-golang.org/x/sys v0.20.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
-golang.org/x/sys v0.30.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/sys v0.48.0 h1:bbX/i/6MgT9BVLM9RT1thmxL04yeTAhbEz4SyadbXoo=
 golang.org/x/sys v0.48.0/go.mod h1:hNLxWAXmnKAxqDtdwIYC4bM9oQPEecfsnNMuSxOs3og=
-golang.org/x/telemetry v0.0.0-20240228155512-f48c80bd79b2/go.mod h1:TeRTkGYfJXctD9OcfyVLyj2J3IxLnKwHJR8f4D8a3YE=
 golang.org/x/term v0.0.0-20201117132131-f5c789dd3221/go.mod h1:Nr5EML6q2oocZ2LXRh80K7BxOlk5/8JxuGnuhpl+muw=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
-golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=
-golang.org/x/term v0.8.0/go.mod h1:xPskH00ivmX89bAKVGSKKtLOWNx2+17Eiy94tnKShWo=
-golang.org/x/term v0.12.0/go.mod h1:owVbMEjm3cBLCHdkQu9b1opXd4ETQWc3BhuQGKgXgvU=
-golang.org/x/term v0.17.0/go.mod h1:lLRBjIVuehSbZlaOtGMbcMncT+aqLLLmKrsjNrUguwk=
-golang.org/x/term v0.20.0/go.mod h1:8UkIAJTvZgivsXaD6/pH6U9ecQzZ45awqEOzuCvwpFY=
-golang.org/x/term v0.29.0/go.mod h1:6bl4lRlvVuDgSf3179VpIxBF0o10JUpXWOnI7nErv7s=
 golang.org/x/term v0.46.0 h1:3+OXuTbaKDgwk8jTi3aSLHRlmWqHEUDUtxnbFigO4YE=
 golang.org/x/term v0.46.0/go.mod h1:+K02xbkittuwc0Am4abfA3Fc+XRGXkvBXNO88NCXPoc=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/text v0.4.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
-golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
-golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
-golang.org/x/text v0.13.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
-golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
-golang.org/x/text v0.15.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
-golang.org/x/text v0.22.0/go.mod h1:YRoo4H8PVmsu+E3Ou7cqLVH8oXWIHVoX0jqUWALQhfY=
 golang.org/x/text v0.42.0 h1:JbOZXgfeCPU9gacVtYliJqOhD+zhrEqK4LfdpmlUZqI=
 golang.org/x/text v0.42.0/go.mod h1:ojzP1Z+2QtioaF8DTtO8K5q7JWVVYwZKenzujK0Zd0E=
 golang.org/x/time v0.16.0 h1:vMb6ptszcQMkcwiRTAuNNU50gom6++Q/6gY2hDM6VDE=
@@ -1112,9 +880,6 @@ golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtn
 golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
 golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
 golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
-golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
-golang.org/x/tools v0.13.0/go.mod h1:HvlwmtVNQAhOuCjW7xxvovg8wbNq7LwfXh/k7wXUl58=
-golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d/go.mod h1:aiJjzUbINMkxbQROHiO6hDPo2LHcIPhhQsa9DLh0yGk=
 golang.org/x/tools v0.50.0 h1:c2ifzfcuY7L90lZ2aKd8S4K2NpASF08SZx9ZuJkHmSU=
 golang.org/x/tools v0.50.0/go.mod h1:7ulVMw3831Mwi5EZD6RomGyffr4VFjuNYXf2BbCEAV0=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@@ -1127,15 +892,11 @@ golang.zx2c4.com/wireguard/wgctrl v0.0.0-20230429144221-925a1e7659e6 h1:CawjfCvY
 golang.zx2c4.com/wireguard/wgctrl v0.0.0-20230429144221-925a1e7659e6/go.mod h1:3rxYc4HtVcSG9gVaTs2GEBdehh+sYPOwKtyUWEOTb80=
 gonum.org/v1/gonum v0.17.0 h1:VbpOemQlsSMrYmn7T2OUvQ4dqxQXU+ouZFQsZOx50z4=
 gonum.org/v1/gonum v0.17.0/go.mod h1:El3tOrEuMpv2UdMrbNlKEh9vd86bmQ6vqIcDwxEOc1E=
-google.golang.org/api v0.277.0 h1:HJfyJUiNeBBUMai7ez8u14wkp/gH/I4wpGbbO9o+cSk=
-google.golang.org/api v0.277.0/go.mod h1:B9TqLBwJqVjp1mtt7WeoQwWRwvu/400y5lETOql+giQ=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
 google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
 google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
 google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
 google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo=
-google.golang.org/genproto v0.0.0-20260319201613-d00831a3d3e7 h1:XzmzkmB14QhVhgnawEVsOn6OFsnpyxNPRY9QV01dNB0=
-google.golang.org/genproto v0.0.0-20260319201613-d00831a3d3e7/go.mod h1:L43LFes82YgSonw6iTXTxXUX1OlULt4AQtkik4ULL/I=
 google.golang.org/genproto/googleapis/api v0.0.0-20260406210006-6f92a3bedf2d h1:/aDRtSZJjyLQzm75d+a1wOJaqyKBMvIAfeQmoa3ORiI=
 google.golang.org/genproto/googleapis/api v0.0.0-20260406210006-6f92a3bedf2d/go.mod h1:etfGUgejTiadZAUaEP14NP97xi1RGeawqkjDARA/UOs=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20260427160629-7cedc36a6bc4 h1:tEkOQcXgF6dH1G+MVKZrfpYvozGrzb91k6ha7jireSM=
@@ -1148,8 +909,6 @@ google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8
 google.golang.org/grpc v1.33.2/go.mod h1:JMHMWHQWaTccqQQlmk3MJZS+GWXOdAesneDmEnv2fbc=
 google.golang.org/grpc v1.81.0 h1:W3G9N3KQf3BU+YuCtGKJk0CmxQNbAISICD/9AORxLIw=
 google.golang.org/grpc v1.81.0/go.mod h1:xGH9GfzOyMTGIOXBJmXt+BX/V0kcdQbdcuwQ/zNw42I=
-google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.5.1 h1:F29+wU6Ee6qgu9TddPgooOdaqsxTMunOoj8KA5yuS5A=
-google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.5.1/go.mod h1:5KF+wpkbTSbGcR9zteSqZV6fqFOWBl4Yde8En8MryZA=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
@@ -1166,7 +925,6 @@ gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLks
 gopkg.in/cenkalti/backoff.v2 v2.2.1 h1:eJ9UAg01/HIHG987TwxvnzK2MgxXq97YY6rYDpY9aII=
 gopkg.in/cenkalti/backoff.v2 v2.2.1/go.mod h1:S0QdOvT2AlerfSBkp0O+dk+bbIMaNbEmVk876gPCthU=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
@@ -1181,7 +939,6 @@ gopkg.in/ini.v1 v1.67.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
 gopkg.in/rethinkdb/rethinkdb-go.v6 v6.2.1 h1:d4KQkxAaAiRY2h5Zqis161Pv91A37uZyJOx73duwUwM=
 gopkg.in/rethinkdb/rethinkdb-go.v6 v6.2.1/go.mod h1:WbjuEoo1oadwzQ4apSDU+JTvmllEHtsNHS6y7vFc7iw=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
-gopkg.in/yaml.v1 v1.0.0-20140924161607-9f9df34309c0/go.mod h1:WDnlLJ4WF5VGsH/HVa3CI79GS0ol3YnhVnKP89i0kNg=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
@@ -1195,8 +952,6 @@ gotest.tools/v3 v3.5.2 h1:7koQfIKdy+I8UTetycgUqXWSDwpgv193Ka+qRsmBY8Q=
 gotest.tools/v3 v3.5.2/go.mod h1:LtdLGcnqToBH83WByAAi/wiwSFCArdFIUV/xxN4pcjA=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
-howett.net/plist v1.0.0 h1:7CrbWYbPPO/PyNy38b2EB/+gYbjCe2DXBxgtOOZbSQM=
-howett.net/plist v1.0.0/go.mod h1:lqaXoTrLY4hg8tnEzNru53gicrbv7rrk+2xJA/7hw9g=
 k8s.io/api v0.32.3 h1:Hw7KqxRusq+6QSplE3NYG4MBxZw1BZnq4aP4cJVINls=
 k8s.io/api v0.32.3/go.mod h1:2wEDTXADtm/HA7CCMD8D8bK4yuBUptzaRhYcYEEYA3k=
 k8s.io/apimachinery v0.32.3 h1:JmDuDarhDmA/Li7j3aPrwhpNBA94Nvk5zLeOge9HH1U=

internal/cli/cli.go

@@ -458,7 +458,7 @@ func (cli *CLI) AddMachine(ctx context.Context, opts AddMachineOptions) (_ *clie
 	}
 
 	// Snapshot the cluster store version so the new machine can catch up before participating.
-	var storeVersion map[string]uint64
+	var storeVersion api.StoreVersion
 	inspectResp, err = c.MachineClient.InspectMachine(ctx, &emptypb.Empty{})
 	if err != nil {
 		// TODO(lhf): remove Unimplemented check when v0.17.0 is released.
@@ -603,7 +603,7 @@ func provisionOrConnectRemoteMachine(
 		if remoteMachine.User != rootUser {
 			// provisionMachine has just added the user to the uncloud group. Any SSH ControlMaster left over from
 			// a previous uc invocation (e.g. a failed uc command against the uninitialised machine) still holds
-			// the old user groups and would deny access to /run/uncloud/uncloud.sock. Close the current session
+			// the old user groups and would deny access to /run/uncloud/api/uncloud.sock. Close the current session
 			// if it exists so the next session picks up the new groups.
 			conn.CloseControlMaster(ctx)
 		}

internal/cli/config/connection_test.go

@@ -70,9 +70,9 @@ func TestMachineConnection_String(t *testing.T) {
 		{
 			name: "unix connection",
 			conn: MachineConnection{
-				Unix: "/run/uncloud/uncloud.sock",
+				Unix: "/run/uncloud/api/uncloud.sock",
 			},
-			want: "unix:///run/uncloud/uncloud.sock",
+			want: "unix:///run/uncloud/api/uncloud.sock",
 		},
 		{
 			name: "no connection",

internal/cli/connect.go

@@ -45,7 +45,17 @@ func connectClusterWithProgress(ctx context.Context, conn config.MachineConnecti
 	}
 
 	// Run the connection TUI model. Render to stderr so stdout stays clean for command output.
-	p := tea.NewProgram(newConnectModel(ctx, conn), tea.WithOutput(os.Stderr))
+	p := tea.NewProgram(newConnectModel(ctx, conn),
+		tea.WithOutput(os.Stderr),
+		tea.WithInput(nil),
+		// Ctrl+C handling
+		tea.WithFilter(func(_ tea.Model, msg tea.Msg) tea.Msg {
+			if _, ok := msg.(tea.InterruptMsg); ok {
+				return connectResultMsg{err: errors.New("connection cancelled")}
+			}
+			return msg
+		}),
+	)
 	model, err := p.Run()
 	if err != nil {
 		return nil, fmt.Errorf("run connection TUI: %w", err)
@@ -190,13 +200,6 @@ func (m connectModel) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 		var cmd tea.Cmd
 		m.spinner, cmd = m.spinner.Update(msg)
 		return m, cmd
-
-	case tea.KeyPressMsg:
-		if msg.String() == "ctrl+c" {
-			m.result.err = fmt.Errorf("connection cancelled")
-			m.done = true
-			return m, tea.Quit
-		}
 	}
 
 	return m, nil

internal/cli/tui/spinner.go

@@ -31,6 +31,8 @@ func RunSpinner(ctx context.Context, title string, action func(ctx context.Conte
 			}
 		})).
 		WithOutput(os.Stderr).
+		// A spinner reads no keys, saying so makes Bubble Tea skip unnecessary terminal capability queries.
+		WithInput(nil).
 		Context(ctx).
 		ActionWithErr(action).
 		Run()

internal/corrosion/admin.go

@@ -13,6 +13,8 @@ import (
 	"time"
 )
 
+const adminCommandTimeout = 5 * time.Second
+
 // AdminClient is a client for the Corrosion admin API.
 type AdminClient struct {
 	sockPath string
@@ -32,10 +34,15 @@ type Response struct {
 // The channel will be closed after sending the last or error response. The caller must read from the channel until
 // it is closed.
 func (c *AdminClient) SendCommand(cmd []byte) (<-chan Response, error) {
-	conn, err := net.Dial("unix", c.sockPath)
+	// TODO: Accept contexts in admin methods so callers can cancel requests and set their deadlines.
+	conn, err := net.DialTimeout("unix", c.sockPath, adminCommandTimeout)
 	if err != nil {
 		return nil, fmt.Errorf("connect to admin socket: %w", err)
 	}
+	if err = conn.SetDeadline(time.Now().Add(adminCommandTimeout)); err != nil {
+		conn.Close()
+		return nil, fmt.Errorf("set admin connection deadline: %w", err)
+	}
 
 	if _, err = conn.Write(encodeFrame(cmd)); err != nil {
 		conn.Close()

internal/daemon/daemon.go

@@ -2,24 +2,50 @@ package daemon
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"log/slog"
+	"net"
 
+	"github.com/coreos/go-systemd/activation"
 	systemd "github.com/coreos/go-systemd/daemon"
 	"github.com/psviderski/uncloud/internal/machine"
 )
 
+const systemdSocketUnit = "uncloud.socket"
+
 type Daemon struct {
 	machine *machine.Machine
 }
 
 func New(dataDir string) (*Daemon, error) {
+	listeners, err := activation.ListenersWithNames()
+	if err != nil {
+		return nil, fmt.Errorf("get systemd-activated sockets: %w", err)
+	}
+
+	listener, err := selectActivatedListener(listeners)
+	if err != nil {
+		return nil, err
+	}
+	if listener != nil {
+		slog.Info("Using systemd-activated API socket.", "addr", listener.Addr().String())
+	}
+
 	config := &machine.Config{
 		DataDir:            dataDir,
+		ClusterAPISockPath: machine.DefaultClusterAPISockPath,
+		ClusterAPIListener: listener,
 	}
 	mach, err := machine.NewMachine(config)
 	if err != nil {
-		return nil, fmt.Errorf("init machine: %w", err)
+		initErr := fmt.Errorf("init machine: %w", err)
+		if listener != nil {
+			if closeErr := listener.Close(); closeErr != nil {
+				initErr = errors.Join(initErr, fmt.Errorf("close systemd-activated socket: %w", closeErr))
+			}
+		}
+		return nil, initErr
 	}
 
 	return &Daemon{
@@ -27,6 +53,40 @@ func New(dataDir string) (*Daemon, error) {
 	}, nil
 }
 
+// selectActivatedListener returns the systemd activated listener. If systemd supplied multiple listeners,
+// it returns the one associated with systemdSocketUnit.
+func selectActivatedListener(listeners map[string][]net.Listener) (net.Listener, error) {
+	var activated []net.Listener
+	for _, named := range listeners {
+		activated = append(activated, named...)
+	}
+
+	if len(activated) == 0 {
+		return nil, nil
+	}
+	if len(activated) == 1 {
+		return activated[0], nil
+	}
+
+	named, ok := listeners[systemdSocketUnit]
+	if !ok || len(named) != 1 {
+		return nil, fmt.Errorf("expected one systemd-activated socket named '%s', received %d",
+			systemdSocketUnit, len(named))
+	}
+
+	// Close all other unused listeners.
+	for name, unused := range listeners {
+		if name == systemdSocketUnit {
+			continue
+		}
+		for _, l := range unused {
+			_ = l.Close()
+		}
+	}
+
+	return named[0], nil
+}
+
 func (d *Daemon) Run(ctx context.Context) error {
 	slog.Info("Starting machine.")
 

internal/daemon/daemon_test.go

@@ -0,0 +1,71 @@
+package daemon
+
+import (
+	"net"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestSelectActivatedListener(t *testing.T) {
+	t.Run("no activated listeners", func(t *testing.T) {
+		listener, err := selectActivatedListener(nil)
+		require.NoError(t, err)
+		assert.Nil(t, listener)
+	})
+
+	t.Run("only listener regardless of name", func(t *testing.T) {
+		activated := testListener(t)
+
+		listener, err := selectActivatedListener(map[string][]net.Listener{"another.socket": {activated}})
+		require.NoError(t, err)
+		assert.Same(t, activated, listener)
+	})
+
+	t.Run("named listener when multiple", func(t *testing.T) {
+		activated := testListener(t)
+		extra := testListener(t)
+
+		listener, err := selectActivatedListener(map[string][]net.Listener{
+			systemdSocketUnit: {activated},
+			"another.socket":  {extra},
+		})
+		require.NoError(t, err)
+		assert.Same(t, activated, listener)
+		assert.Error(t, extra.Close())
+	})
+
+	t.Run("multiple listeners without expected name", func(t *testing.T) {
+		first := testListener(t)
+		second := testListener(t)
+
+		listener, err := selectActivatedListener(map[string][]net.Listener{
+			"first.socket":  {first},
+			"second.socket": {second},
+		})
+		require.ErrorContains(t, err, "expected one systemd-activated socket")
+		assert.Nil(t, listener)
+	})
+
+	t.Run("multiple listeners under expected name", func(t *testing.T) {
+		first := testListener(t)
+		second := testListener(t)
+
+		listener, err := selectActivatedListener(map[string][]net.Listener{
+			systemdSocketUnit: {first, second},
+		})
+		require.ErrorContains(t, err, "expected one systemd-activated socket")
+		assert.Nil(t, listener)
+	})
+}
+
+func testListener(t *testing.T) net.Listener {
+	t.Helper()
+
+	listener, err := net.Listen("tcp", "127.0.0.1:0")
+	require.NoError(t, err)
+	t.Cleanup(func() { _ = listener.Close() })
+
+	return listener
+}

internal/machine/caddyconfig/caddyfile.go

@@ -4,6 +4,7 @@ import (
 	"bytes"
 	"cmp"
 	"context"
+	"errors"
 	"fmt"
 	"log/slog"
 	"maps"
@@ -57,14 +58,12 @@ https://{{$hostname}} {
 	log
 }{{end}}
 `
-	caddyfileUnavailabeFooter = `# NOTE: User-defined configs for services were skipped because Caddy is not running on this machine
-#       (not accessible via the shared admin socket /run/uncloud/caddy/admin.sock) or the latest
-#       generated config is invalid. Please check the service 'caddy' is running (uc inspect caddy)
-#       and its logs for more details (uc logs caddy).
-`
+	bootstrapMarker       = "# Uncloud bootstrap for Caddy container "
+	legacyBootstrapMarker = "# NOTE: User-defined configs for services were skipped because Caddy is not running"
 )
 
 // CaddyfileGenerator generates a Caddyfile configuration for the Caddy reverse proxy.
+// It combines generated routes from published ports with user-defined Caddyfile snippets from service specs (x-caddy).
 type CaddyfileGenerator struct {
 	// machineID is the unique identifier of the machine where the controller is running.
 	machineID string
@@ -74,11 +73,18 @@ type CaddyfileGenerator struct {
 	log         *slog.Logger
 }
 
-// CaddyfileValidator is an interface for validating Caddyfile configurations.
+// CaddyfileValidator checks a candidate Caddyfile without loading it. Validate returns InvalidCaddyfileError only
+// when the candidate is known to be invalid. Other errors mean the check could not be completed. A successful check
+// does not guarantee that the configuration will load.
 type CaddyfileValidator interface {
 	Validate(ctx context.Context, caddyfile string) error
 }
 
+// InvalidCaddyfileError means validation completed and the candidate Caddyfile was rejected.
+type InvalidCaddyfileError struct{ Message string }
+
+func (e *InvalidCaddyfileError) Error() string { return e.Message }
+
 func NewCaddyfileGenerator(
 	machineID, machineName string, validator CaddyfileValidator, log *slog.Logger,
 ) *CaddyfileGenerator {
@@ -93,35 +99,41 @@ func NewCaddyfileGenerator(
 	}
 }
 
-// Generate creates a Caddyfile configuration based on the provided service containers.
-// The Caddyfile is generated from the service ports of the healthy containers.
-// If a 'caddy' service container is running on this machine and defines a custom Caddy config (x-caddy) in its service
-// spec, it will be validated and prepended to the generated Caddyfile. Custom Caddy configs (x-caddy) defined in other
-// service specs are validated and appended to the generated Caddyfile. Invalid configs are logged and skipped to ensure
-// the generated Caddyfile remains valid.
+// Generate creates a Caddyfile for the local Caddy container from the supplied healthy application containers.
+// Application service ports provide the generated sites. The Caddy container's custom Caddy config (x-caddy), if
+// defined, provides the global block even when that container is unhealthy. When application custom Caddy configs
+// are included, the newest container for each service provides its config.
 //
-// The final Caddyfile structure includes:
+// The resulting Caddyfile has this structure:
 //
-//	[caddy x-caddy (global config)]
-//	[generated Caddyfile from all service ports]
-//	[service-a x-caddy]
+//	[caddy custom Caddy config (global)]
+//	[generated sites from application service ports]
+//	[service-a custom Caddy config]
 //	...
-//	[service-z x-caddy]
+//	[service-z custom Caddy config]
 //
-// If includeCustom is false, custom Caddy configs (x-caddy) are not included in the generated Caddyfile.
+// Bootstrap mode keeps the global custom Caddy config and generated sites, but omits application custom Caddy configs.
+// It skips validation because Caddy may not be running yet. In this case, Caddy validates the config when it starts.
+// Global template errors still stop generation. In full mode, invalid globals stop generation, while invalid
+// application custom Caddy configs are logged and skipped.
 func (g *CaddyfileGenerator) Generate(
-	ctx context.Context, records []store.ContainerRecord, includeCustom bool,
+	ctx context.Context,
+	caddyCtr api.ServiceContainer,
+	records []store.ContainerRecord,
+	bootstrap bool,
 ) (string, error) {
+	records = slices.Clone(records)
 	// Sort records by local machine first, then by service name and creation time. Placing containers on the local
 	// machine first lets user-defined Caddy configs pair this ordering with the "first" lb_policy to always send
 	// traffic to the same-host replica (skipping the cross-machine hop) and only fall back to remote upstreams when
 	// the local one is unhealthy.
-	// The service name and creation time tiebreakers keep the generated Caddyfile stable across regenerations.
+	// The service name, creation time, and container ID tiebreakers keep the file stable across regenerations.
 	slices.SortStableFunc(records, func(a, b store.ContainerRecord) int {
 		return cmp.Or(
 			g.localMachineRank(a.MachineID)-g.localMachineRank(b.MachineID),
 			strings.Compare(a.Container.ServiceName(), b.Container.ServiceName()),
 			a.Container.CreatedTime().Compare(b.Container.CreatedTime()),
+			strings.Compare(a.Container.ID, b.Container.ID),
 		)
 	})
 
@@ -136,26 +148,11 @@ func (g *CaddyfileGenerator) Generate(
 	}
 
 	caddyfileHeader := fmt.Sprintf(caddyfileHeaderFmt, g.machineName, time.Now().UTC().Format(time.RFC3339))
-	if !includeCustom {
-		return fmt.Sprintf("%s\n%s\n%s", caddyfileHeader, caddyfile, caddyfileUnavailabeFooter), nil
-	}
-
 	upstreams := serviceUpstreams(containers)
 	// Track validation errors for reporting.
 	var configErrors []string
 
-	// Find the 'caddy' service container on this machine. Use the most recent one if multiple exist.
-	var caddyCtr *api.ServiceContainer
-	for _, cr := range records {
-		if cr.MachineID == g.machineID && cr.Container.ServiceName() == CaddyServiceName &&
-			(caddyCtr == nil || cr.Container.CreatedTime().Compare(caddyCtr.CreatedTime()) > 0) {
-			caddyCtr = &cr.Container
-		}
-	}
-
-	// If the caddy container is running on this machine and has a custom Caddy config (global),
-	// prepend it to the generated Caddyfile and validate it.
-	if caddyCtr != nil && caddyCtr.ServiceSpec.CaddyConfig() != "" {
+	if caddyCtr.ServiceSpec.CaddyConfig() != "" {
 		// Render the custom global Caddy config as a Go template with the upstreams.
 		tmplCtx := templateContext{
 			Name:      caddyCtr.ServiceName(),
@@ -163,23 +160,23 @@ func (g *CaddyfileGenerator) Generate(
 		}
 		renderedConfig, err := renderCaddyfile(tmplCtx, caddyCtr.ServiceSpec.CaddyConfig())
 		if err != nil {
-			g.log.Error("Failed to render template directives in user-defined global Caddy config, skipping it.",
-				"service", caddyCtr.ServiceName(), "container", caddyCtr.ID, "err", err)
-			configErrors = append(configErrors,
-				fmt.Sprintf("service '%s': failed to render template: %v", caddyCtr.ServiceName(), err))
-		} else {
+			return "", fmt.Errorf(
+				"render template directives in user-defined global Caddy config from Caddy container %s: %w",
+				caddyCtr.ShortID(), err)
+		}
 		caddyfileCandidate := fmt.Sprintf("# User-defined global config from service '%s'.\n%s\n\n%s",
 			caddyCtr.ServiceName(), renderedConfig, caddyfile)
-
+		if !bootstrap && g.validator != nil {
 			if err = g.validator.Validate(ctx, caddyfileCandidate); err != nil {
-				g.log.Error("User-defined global Caddy config is invalid, skipping it.",
-					"service", caddyCtr.ServiceName(), "container", caddyCtr.ID, "err", err)
-				configErrors = append(configErrors,
-					fmt.Sprintf("service '%s': validation failed: %v", caddyCtr.ServiceName(), err))
-			} else {
+				return "", fmt.Errorf("validate user-defined global Caddy config from Caddy container %s: %w",
+					caddyCtr.ShortID(), err)
+			}
+		}
 		caddyfile = caddyfileCandidate
 	}
-		}
+
+	if bootstrap {
+		return caddyfileHeader + bootstrapMarker + caddyCtr.ID + "\n\n" + caddyfile, nil
 	}
 
 	// There could be multiple service containers for the same service with different custom Caddy configs, for example,
@@ -200,7 +197,7 @@ func (g *CaddyfileGenerator) Generate(
 	// Append a custom Caddy config for each service to the Caddyfile and validate it. If the config for a service
 	// is invalid, skip it but continue processing other services to ensure the Caddyfile remains valid.
 	for _, serviceName := range sortedServiceNames {
-		// Skip the caddy container as we already processed it.
+		// Skip the caddy container as we already processed it as the global config.
 		if serviceName == CaddyServiceName {
 			continue
 		}
@@ -226,16 +223,22 @@ func (g *CaddyfileGenerator) Generate(
 
 		caddyfileCandidate := fmt.Sprintf("%s\n# User-defined config for service '%s'.\n%s\n",
 			caddyfile, serviceName, renderedConfig)
+		if g.validator != nil {
 			if err = g.validator.Validate(ctx, caddyfileCandidate); err != nil {
+				if _, ok := errors.AsType[*InvalidCaddyfileError](err); !ok {
+					return "", fmt.Errorf("validate Caddy config for service '%s': %w", serviceName, err)
+				}
 				g.log.Error("User-defined Caddy config for service is invalid, skipping it.",
 					"service", serviceName, "err", err)
-			configErrors = append(configErrors, fmt.Sprintf("service '%s': validation failed: %v", serviceName, err))
-		} else {
+				configErrors = append(configErrors,
+					fmt.Sprintf("service '%s': validation failed: %v", serviceName, err))
+				continue
+			}
+		}
 		caddyfile = caddyfileCandidate
 	}
-	}
 
-	// Append error summary as comment if there were any invalid configs.
+	// Keep skipped-snippet errors in the saved file so an operator can see why routes are missing after a restart.
 	if len(configErrors) > 0 {
 		var errorsComment strings.Builder
 		errorsComment.WriteString("# Skipped invalid user-defined configs:\n")
@@ -249,8 +252,7 @@ func (g *CaddyfileGenerator) Generate(
 	return caddyfileHeader + "\n" + caddyfile, nil
 }
 
-// localMachineRank returns 0 if the given machineID matches the local machine and 1 otherwise.
-// Useful for sorting containers running locally first.
+// localMachineRank is a sorting function for containers that puts running on the local machine first.
 func (g *CaddyfileGenerator) localMachineRank(machineID string) int {
 	if g.machineID == machineID {
 		return 0

internal/machine/caddyconfig/caddyfile_test.go

@@ -208,10 +208,11 @@ http://app.example.com {
 	ctx := context.Background()
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			// Validator is not expected to be called in these tests.
-			generator := NewCaddyfileGenerator("test-machine-id", "test-machine", nil, nil)
+			validator := NewMockCaddyfileValidator(t)
+			generator := NewCaddyfileGenerator("test-machine-id", "test-machine", validator, nil)
 
-			config, err := generator.Generate(ctx, tt.containers, true)
+			caddyCtr := newContainerRecordWithCaddyConfig("caddy", "10.210.0.1", "", "", time.Now()).Container
+			config, err := generator.Generate(ctx, caddyCtr, tt.containers, false)
 
 			if tt.wantErr {
 				assert.Error(t, err)
@@ -332,7 +333,7 @@ bad.template.com {
 `,
 		},
 		{
-			name: "caddy service with invalid global config is skipped",
+			name: "caddy service with invalid global config aborts",
 			containers: []store.ContainerRecord{
 				newContainerRecordWithCaddyConfig(
 					"caddy",
@@ -345,10 +346,7 @@ localhost {
 					time.Now(),
 				),
 			},
-			want: testCaddyfileHeader + `
-# Skipped invalid user-defined configs:
-# - service 'caddy': validation failed: invalid config detected
-`,
+			wantErr: true,
 		},
 		{
 			name: "caddy service on different machine is ignored",
@@ -786,7 +784,7 @@ web-v2.example.com {
 `,
 		},
 		{
-			name: "multiple errors: invalid global, template error, and validation error",
+			name: "invalid global aborts before application configs",
 			containers: []store.ContainerRecord{
 				newContainerRecordWithCaddyConfig(
 					"caddy",
@@ -827,17 +825,7 @@ invalid.example.com {
 					time.Now(),
 				),
 			},
-			want: testCaddyfileHeader + `
-# User-defined config for service 'valid'.
-valid.example.com {
-	respond "Valid config"
-}
-
-# Skipped invalid user-defined configs:
-# - service 'caddy': validation failed: invalid config detected
-# - service 'broken-template': failed to render template: parse config as Go template: template: Caddyfile:2: unterminated quoted string
-# - service 'invalid': validation failed: invalid config detected
-`,
+			wantErr: true,
 		},
 	}
 
@@ -846,7 +834,7 @@ valid.example.com {
 	validator.EXPECT().Validate(mock.Anything, mock.Anything).RunAndReturn(
 		func(ctx context.Context, caddyfile string) error {
 			if strings.Contains(caddyfile, "# test:invalid") {
-				return errors.New("invalid config detected")
+				return &InvalidCaddyfileError{Message: "invalid config detected"}
 			}
 			return nil
 		})
@@ -855,7 +843,8 @@ valid.example.com {
 		t.Run(tt.name, func(t *testing.T) {
 			generator := NewCaddyfileGenerator("test-machine-id", "test-machine", validator, nil)
 
-			config, err := generator.Generate(ctx, tt.containers, true)
+			caddyCtr := caddyContainerFromTestContainers(tt.containers)
+			config, err := generator.Generate(ctx, caddyCtr, tt.containers, false)
 
 			if tt.wantErr {
 				assert.Error(t, err)
@@ -868,6 +857,167 @@ valid.example.com {
 	}
 }
 
+func TestCaddyfileGeneratorBootstrap(t *testing.T) {
+	// Bootstrap keeps the local Caddy container's globals and generated routes, but omits application custom configs.
+	tests := []struct {
+		name       string
+		containers []store.ContainerRecord
+		want       string
+	}{
+		{
+			name: "global config retained and application custom configs skipped",
+			containers: []store.ContainerRecord{
+				newContainerRecordWithCaddyConfig(
+					"caddy",
+					"10.210.0.1",
+					`# Global config
+{
+	global directive
+}`,
+					"test-machine-id",
+					time.Now(),
+				),
+				newContainerRecordWithCaddyConfig(
+					"web",
+					"10.210.0.2",
+					`web.example.com {
+	reverse_proxy web:3000
+}`,
+					"test-machine-id",
+					time.Now(),
+				),
+				newContainerRecordWithPorts(
+					"api",
+					"10.210.0.3",
+					[]string{"api.example.com:8080/http"},
+					"test-machine-id",
+				),
+			},
+			want: strings.Replace(testCaddyfileHeader, "\n\n# Health check endpoint", `
+# Uncloud bootstrap for Caddy container caddy-10.210.0.1
+
+# User-defined global config from service 'caddy'.
+# Global config
+{
+	global directive
+}
+
+# Health check endpoint`, 1) + `
+# Sites generated from service ports.
+
+http://api.example.com {
+	reverse_proxy 10.210.0.3:8080 {
+		import common_proxy
+	}
+	log
+}
+`,
+		},
+		{
+			name: "no containers with x-caddy configs",
+			containers: []store.ContainerRecord{
+				newContainerRecordWithPorts(
+					"api",
+					"10.210.0.3",
+					[]string{"api.example.com:8080/http"},
+					"test-machine-id",
+				),
+			},
+			want: strings.Replace(testCaddyfileHeader, "\n\n# Health check endpoint", `
+# Uncloud bootstrap for Caddy container caddy-10.210.0.1
+
+# Health check endpoint`, 1) + `
+# Sites generated from service ports.
+
+http://api.example.com {
+	reverse_proxy 10.210.0.3:8080 {
+		import common_proxy
+	}
+	log
+}
+`,
+		},
+	}
+
+	ctx := context.Background()
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			validator := NewMockCaddyfileValidator(t)
+			generator := NewCaddyfileGenerator("test-machine-id", "test-machine", validator, nil)
+
+			caddyContainer := caddyContainerFromTestContainers(tt.containers)
+			config, err := generator.Generate(ctx, caddyContainer, tt.containers, true)
+			require.NoError(t, err)
+
+			assert.Equal(t, tt.want, normaliseGeneratedTimestamp(config), "Generated Caddyfile doesn't match")
+		})
+	}
+}
+
+func TestCaddyfileGenerator_ValidatorTransportErrorAbortsGeneration(t *testing.T) {
+	validator := NewMockCaddyfileValidator(t)
+	validator.EXPECT().Validate(mock.Anything, mock.Anything).Return(errors.New("socket disappeared"))
+
+	generator := NewCaddyfileGenerator("test-machine-id", "test-machine", validator, nil)
+	app := newContainerRecordWithCaddyConfig(
+		"web",
+		"10.210.0.2",
+		"web.example.com { respond ok }",
+		"test-machine-id",
+		time.Now(),
+	)
+
+	_, err := generator.Generate(context.Background(), caddyContainerFromTestContainers(nil),
+		[]store.ContainerRecord{app}, false)
+	require.ErrorContains(t, err, "socket disappeared")
+}
+
+func newContainer(ip string, ports ...string) api.ServiceContainer {
+	portsLabel := strings.Join(ports, ",")
+	return api.ServiceContainer{Container: api.Container{InspectResponse: container.InspectResponse{
+		ContainerJSONBase: &container.ContainerJSONBase{
+			State: &container.State{
+				Running: true,
+			},
+		},
+		NetworkSettings: &container.NetworkSettings{
+			Networks: map[string]*network.EndpointSettings{
+				docker.NetworkName: {
+					IPAddress: ip,
+				},
+			},
+		},
+		Config: &container.Config{
+			Labels: map[string]string{
+				api.LabelServicePorts: portsLabel,
+			},
+		},
+	}}}
+}
+
+func newContainerWithoutNetwork(ports ...string) api.ServiceContainer {
+	portsLabel := strings.Join(ports, ",")
+	return api.ServiceContainer{Container: api.Container{InspectResponse: container.InspectResponse{
+		ContainerJSONBase: &container.ContainerJSONBase{
+			State: &container.State{
+				Running: true,
+			},
+		},
+		NetworkSettings: &container.NetworkSettings{
+			Networks: map[string]*network.EndpointSettings{
+				"other-network": {
+					IPAddress: "172.17.0.2",
+				},
+			},
+		},
+		Config: &container.Config{
+			Labels: map[string]string{
+				api.LabelServicePorts: portsLabel,
+			},
+		},
+	}}}
+}
+
 func newContainerRecord(ctr api.ServiceContainer, machineID string) store.ContainerRecord {
 	return store.ContainerRecord{
 		Container: ctr,
@@ -911,100 +1061,6 @@ func newContainerRecordWithCaddyConfig(serviceName, ip, caddyConfig, machineID s
 	}
 }
 
-func TestCaddyfileGeneratorWithoutCustomConfigs(t *testing.T) {
-	// Test that when includeCustom is false (Caddy not available), x-caddy configs are skipped.
-	tests := []struct {
-		name       string
-		containers []store.ContainerRecord
-		want       string
-	}{
-		{
-			name: "x-caddy configs are skipped",
-			containers: []store.ContainerRecord{
-				newContainerRecordWithCaddyConfig(
-					"caddy",
-					"10.210.0.1",
-					`# Global config
-{
-	global directive
-}`,
-					"test-machine-id",
-					time.Now(),
-				),
-				newContainerRecordWithCaddyConfig(
-					"web",
-					"10.210.0.2",
-					`web.example.com {
-	reverse_proxy web:3000
-}`,
-					"test-machine-id",
-					time.Now(),
-				),
-				newContainerRecordWithPorts(
-					"api",
-					"10.210.0.3",
-					[]string{"api.example.com:8080/http"},
-					"test-machine-id",
-				),
-			},
-			want: testCaddyfileHeader + `
-# Sites generated from service ports.
-
-http://api.example.com {
-	reverse_proxy 10.210.0.3:8080 {
-		import common_proxy
-	}
-	log
-}
-
-# NOTE: User-defined configs for services were skipped because Caddy is not running on this machine
-#       (not accessible via the shared admin socket /run/uncloud/caddy/admin.sock) or the latest
-#       generated config is invalid. Please check the service 'caddy' is running (uc inspect caddy)
-#       and its logs for more details (uc logs caddy).
-`,
-		},
-		{
-			name: "no containers with x-caddy configs",
-			containers: []store.ContainerRecord{
-				newContainerRecordWithPorts(
-					"api",
-					"10.210.0.3",
-					[]string{"api.example.com:8080/http"},
-					"test-machine-id",
-				),
-			},
-			want: testCaddyfileHeader + `
-# Sites generated from service ports.
-
-http://api.example.com {
-	reverse_proxy 10.210.0.3:8080 {
-		import common_proxy
-	}
-	log
-}
-
-# NOTE: User-defined configs for services were skipped because Caddy is not running on this machine
-#       (not accessible via the shared admin socket /run/uncloud/caddy/admin.sock) or the latest
-#       generated config is invalid. Please check the service 'caddy' is running (uc inspect caddy)
-#       and its logs for more details (uc logs caddy).
-`,
-		},
-	}
-
-	ctx := context.Background()
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			// Validator is not expected to be called in these tests.
-			generator := NewCaddyfileGenerator("test-machine-id", "test-machine", nil, nil)
-
-			config, err := generator.Generate(ctx, tt.containers, false)
-			require.NoError(t, err)
-
-			assert.Equal(t, tt.want, normaliseGeneratedTimestamp(config), "Generated Caddyfile doesn't match")
-		})
-	}
-}
-
 func newContainerRecordWithPorts(serviceName, ip string, ports []string, machineID string) store.ContainerRecord {
 	portsLabel := strings.Join(ports, ",")
 	return store.ContainerRecord{
@@ -1037,3 +1093,18 @@ func newContainerRecordWithPorts(serviceName, ip string, ports []string, machine
 		MachineID: machineID,
 	}
 }
+
+// caddyContainerFromTestContainers returns the local Caddy container from the provided test containers,
+// or creates a default one if not found.
+func caddyContainerFromTestContainers(records []store.ContainerRecord) api.ServiceContainer {
+	if caddyCtr := selectLocalCaddyContainer(records, "test-machine-id"); caddyCtr != nil {
+		return *caddyCtr
+	}
+	return newContainerRecordWithCaddyConfig(
+		"caddy",
+		"10.210.0.1",
+		"",
+		"test-machine-id",
+		time.Now(),
+	).Container
+}

internal/machine/caddyconfig/client.go

@@ -3,7 +3,6 @@ package caddyconfig
 import (
 	"context"
 	"encoding/json"
-	"errors"
 	"fmt"
 	"io"
 	"net"
@@ -26,15 +25,15 @@ func NewCaddyAdminClient(socketPath string) *CaddyAdminClient {
 		client: &http.Client{
 			Timeout: 5 * time.Second,
 			Transport: &http.Transport{
-				DialContext: func(_ context.Context, _, _ string) (net.Conn, error) {
-					return net.Dial("unix", socketPath)
+				DialContext: func(ctx context.Context, _, _ string) (net.Conn, error) {
+					return (&net.Dialer{}).DialContext(ctx, "unix", socketPath)
 				},
 			},
 		},
 	}
 }
 
-// IsAvailable checks if the local Caddy instance is listening on the admin socket.
+// IsAvailable checks whether a Caddy process accepts connections at the admin socket.
 func (c *CaddyAdminClient) IsAvailable() bool {
 	conn, err := net.DialTimeout("unix", c.socketPath, 1*time.Second)
 	// A stale socket file left over from a crashed Caddy container returns ECONNREFUSED so this is correctly handled
@@ -80,15 +79,16 @@ func (c *CaddyAdminClient) Adapt(ctx context.Context, caddyfile string) (string,
 	// If the response is a 400 Bad Request, try to parse the error message from it.
 	if resp.StatusCode == http.StatusBadRequest {
 		var apiError caddy.APIError
-		if err = json.Unmarshal(body, &apiError); err == nil {
-			return "", errors.New(apiError.Message)
+		if err = json.Unmarshal(body, &apiError); err == nil && apiError.Message != "" {
+			return "", &InvalidCaddyfileError{Message: apiError.Message}
 		}
+		return "", &InvalidCaddyfileError{Message: string(body)}
 	}
 
-	return "", errors.New(string(body))
+	return "", fmt.Errorf("adapt request failed: HTTP %d: %s", resp.StatusCode, string(body))
 }
 
-// Load loads a Caddyfile configuration into the Caddy instance running on the machine.
+// Load loads a Caddyfile configuration into the Caddy instance.
 // Due to a Caddy bug (https://github.com/caddyserver/caddy/issues/7246), we first adapt the Caddyfile to JSON
 // and then load the JSON config to get proper error handling.
 func (c *CaddyAdminClient) Load(ctx context.Context, caddyfile string) error {
@@ -96,7 +96,11 @@ func (c *CaddyAdminClient) Load(ctx context.Context, caddyfile string) error {
 	if err != nil {
 		return fmt.Errorf("adapt Caddyfile to JSON config: %w", err)
 	}
+	return c.LoadJSON(ctx, jsonConfig)
+}
 
+// LoadJSON loads a JSON configuration into the Caddy instance.
+func (c *CaddyAdminClient) LoadJSON(ctx context.Context, jsonConfig string) error {
 	req, err := http.NewRequestWithContext(ctx, "POST", "http://localhost/load", strings.NewReader(jsonConfig))
 	if err != nil {
 		return fmt.Errorf("create load request: %w", err)

internal/machine/caddyconfig/client_test.go

@@ -0,0 +1,54 @@
+package caddyconfig
+
+import (
+	"context"
+	"net"
+	"net/http"
+	"net/http/httptest"
+	"os"
+	"path/filepath"
+	"sync/atomic"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func testAdminServer(t *testing.T, handler http.HandlerFunc) string {
+	t.Helper()
+	// macOS limits Unix socket paths to 104 bytes. t.TempDir can exceed that.
+	dir, err := os.MkdirTemp("/tmp", "uc-caddy-")
+	require.NoError(t, err)
+	t.Cleanup(func() {
+		_ = os.RemoveAll(dir)
+	})
+
+	socketPath := filepath.Join(dir, "admin.sock")
+	listener, err := net.Listen("unix", socketPath)
+	require.NoError(t, err)
+	server := httptest.NewUnstartedServer(handler)
+	_ = server.Listener.Close()
+	server.Listener = listener
+	server.Start()
+	t.Cleanup(server.Close)
+
+	return socketPath
+}
+
+func TestCaddyAdminClient_Validate(t *testing.T) {
+	var status atomic.Int64
+	status.Store(http.StatusBadRequest)
+	socket := testAdminServer(t, func(w http.ResponseWriter, _ *http.Request) {
+		w.WriteHeader(int(status.Load()))
+		_, _ = w.Write([]byte(`{"message":"invalid config"}`))
+	})
+	client := NewCaddyAdminClient(socket)
+	err := client.Validate(context.Background(), "invalid")
+	var invalid *InvalidCaddyfileError
+	assert.ErrorAs(t, err, &invalid)
+
+	status.Store(http.StatusInternalServerError)
+	err = client.Validate(context.Background(), "invalid")
+	assert.Error(t, err)
+	assert.NotErrorAs(t, err, &invalid)
+}

internal/machine/caddyconfig/controller.go

@@ -2,7 +2,7 @@ package caddyconfig
 
 import (
 	"context"
-	"encoding/json"
+	"errors"
 	"fmt"
 	"log/slog"
 	"net/netip"
@@ -10,6 +10,7 @@ import (
 	"path/filepath"
 	"slices"
 	"strings"
+	"time"
 
 	"github.com/psviderski/uncloud/internal/fs"
 	"github.com/psviderski/uncloud/internal/machine/store"
@@ -20,27 +21,40 @@ const (
 	CaddyServiceName = "caddy"
 	CaddyGroup       = "uncloud"
 	VerifyPath       = "/.uncloud-verify"
+	// periodicReconciliationInterval is the interval at which the controller reconciles the Caddyfile
+	// even if no container changes are observed.
+	periodicReconciliationInterval = 30 * time.Second
 )
 
-// Controller monitors container changes in the cluster store and generates a configuration file for Caddy reverse
-// proxy. The generated configuration allows Caddy to route external traffic to service containers across the internal
-// network.
+// Controller keeps the local Caddy reverse proxy in sync with container state from the cluster store. It writes a
+// Caddyfile that routes external traffic to healthy service containers across the internal network.
+//
+// Current Caddy deployments share one Caddyfile and one admin socket per machine. The controller must preserve a
+// saved full Caddyfile when Caddy is unavailable because that file may be needed to restart or roll back a container.
+// It writes a reduced bootstrap config only when no full file exists, including when an older offline file must be
+// replaced. The shared layout cannot give overlapping Caddy revisions separate configurations.
 type Controller struct {
 	machineID     string
 	caddyfilePath string
+	service       *Service
 	generator     *CaddyfileGenerator
 	client        *CaddyAdminClient
 	store         *store.Store
 	log           *slog.Logger
-	// lastFingerprint caches the fingerprint of the containers used to generate the latest successfully loaded
-	// Caddyfile. nil means it hasn't been loaded yet or the last load failed.
+	// Tests use their own group so they can exercise real file publication without the daemon's uncloud group.
+	fileGroup string
+	// lastFingerprint records the healthy application-container inputs used for the last full Caddyfile that was
+	// successfully loaded into Caddy and saved to disk. It excludes the Caddy container, whose identity, start time,
+	// and global config are tracked separately below.
 	lastFingerprint []containerFingerprint
-	// lastCaddyfile caches the last generated Caddyfile.
-	lastCaddyfile string
+	lastCaddyCtrID  string
+	lastStartedAt   string
+	lastGlobal      string
+	lastSavedBody   string
 }
 
-// containerFingerprint is the subset of container data that the Caddyfile generator depends on.
-// Comparing fingerprints lets the controller skip no-op regenerations.
+// containerFingerprint contains container identity and routing inputs that can change the generated Caddyfile.
+// It excludes incidental Docker state so unrelated container updates do not cause a Caddy reload.
 type containerFingerprint struct {
 	ID          string
 	IP          netip.Addr
@@ -56,7 +70,8 @@ func (f containerFingerprint) Equal(other containerFingerprint) bool {
 		f.CaddyConfig == other.CaddyConfig
 }
 
-func NewController(machineID, configDir, adminSock string, store *store.Store) (*Controller, error) {
+func NewController(machineID string, service *Service, adminSock string, store *store.Store) (*Controller, error) {
+	configDir := service.configDir
 	if err := os.MkdirAll(configDir, 0o750); err != nil {
 		return nil, fmt.Errorf("create directory for Caddy configuration '%s': %w", configDir, err)
 	}
@@ -67,16 +82,21 @@ func NewController(machineID, configDir, adminSock string, store *store.Store) (
 	log := slog.With("component", "caddy-controller")
 	client := NewCaddyAdminClient(adminSock)
 
-	// generator is initialised by Run() once the machine name is resolved from the store.
+	// The generator is initialised by Run() after resolving the machine name from the store.
 	return &Controller{
 		machineID:     machineID,
 		caddyfilePath: filepath.Join(configDir, "Caddyfile"),
+		service:       service,
 		client:        client,
 		store:         store,
 		log:           log,
+		fileGroup:     CaddyGroup,
 	}, nil
 }
 
+// Run reconciles on container changes and every periodicReconciliationInterval. Failed work is retried every second,
+// but repeated retry failures are logged only during the periodic check.
+// The periodic check also covers missed events and outstanding failures after the daemon restarts.
 func (c *Controller) Run(ctx context.Context) error {
 	// Default the machine name to the machine ID so the Caddyfile header still carries a stable identifier if
 	// the store lookup fails.
@@ -95,13 +115,34 @@ func (c *Controller) Run(ctx context.Context) error {
 	}
 	c.log.Info("Subscribed to container changes in the cluster to generate Caddy configuration.")
 
-	containers = filterHealthyContainers(containers)
-	c.generateAndLoadCaddyfile(ctx, containers)
+	var retryC <-chan time.Time
+	periodic := time.NewTicker(periodicReconciliationInterval)
+	defer periodic.Stop()
 
-	// TODO: left for backward compatibility, remove later.
-	if err = c.generateJSONConfig(containers); err != nil {
-		c.log.Error("Failed to generate Caddy JSON configuration to disk.", "err", err)
+	handleResult := func(err error, logFailure bool) {
+		c.service.setReconciliationResult(err)
+		if err == nil {
+			retryC = nil
+			return
 		}
+		if logFailure {
+			c.log.Error("Failed to reconcile Caddy configuration, will retry.", "err", err)
+		}
+		retryC = time.After(time.Second)
+	}
+
+	reconcile := func(logFailure bool) {
+		ctrs, err := c.store.ListContainers(ctx, store.ListOptions{})
+		if err != nil {
+			err = fmt.Errorf("list containers: %w", err)
+		} else {
+			err = c.generateAndLoadCaddyfile(ctx, ctrs)
+		}
+		handleResult(err, logFailure)
+	}
+
+	// The subscription supplies an initial snapshot, so the first attempt need not wait for a change event.
+	handleResult(c.generateAndLoadCaddyfile(ctx, containers), true)
 
 	for {
 		select {
@@ -111,25 +152,18 @@ func (c *Controller) Run(ctx context.Context) error {
 			}
 			c.log.Debug("Cluster containers changed, regenerating Caddy configuration.")
 
-			containers, err = c.store.ListContainers(ctx, store.ListOptions{})
-			if err != nil {
-				c.log.Error("Failed to list containers.", "err", err)
-				continue
-			}
-			containers = filterHealthyContainers(containers)
-			c.generateAndLoadCaddyfile(ctx, containers)
-
-			// TODO: left for backward compatibility, remove later.
-			if err = c.generateJSONConfig(containers); err != nil {
-				c.log.Error("Failed to generate Caddy JSON configuration to disk.", "err", err)
-			}
+			reconcile(true)
+		case <-periodic.C:
+			reconcile(true)
+		case <-retryC:
+			reconcile(false)
 		case <-ctx.Done():
 			return nil
 		}
 	}
 }
 
-// filterHealthyContainers filters out unhealthy and hook containers.
+// filterHealthyContainers filters out unhealthy, hook, and caddy containers.
 // TODO: Filters out containers from this machine that are likely unavailable. The availability can be determined
 // by the cluster membership state of the machine that the container is running on. Implement machine membership
 // check using Corrossion Admin client.
@@ -139,6 +173,9 @@ func filterHealthyContainers(containers []store.ContainerRecord) []store.Contain
 		if cr.Container.IsHook() {
 			continue
 		}
+		if cr.Container.ServiceName() == CaddyServiceName {
+			continue
+		}
 		if cr.Container.Healthy() {
 			healthy = append(healthy, cr)
 		}
@@ -146,65 +183,96 @@ func filterHealthyContainers(containers []store.ContainerRecord) []store.Contain
 	return healthy
 }
 
-// generateAndLoadCaddyfile regenerates the Caddyfile from the given containers and loads it into the local Caddy
-// if available.
-func (c *Controller) generateAndLoadCaddyfile(ctx context.Context, containers []store.ContainerRecord) {
-	// Check if Caddy is available before attempting to generate and load config.
-	caddyAvailable := c.client.IsAvailable()
-
-	// Skip regeneration when Caddy is available and the containers since the last successful load haven't changed.
-	// When Caddy is unavailable we still regenerate to keep the Caddyfile on disk updated.
-	fingerprint := fingerprintContainers(containers)
-	if caddyAvailable && slices.EqualFunc(fingerprint, c.lastFingerprint, containerFingerprint.Equal) {
-		c.log.Debug("Caddy configuration is unchanged.", "path", c.caddyfilePath)
-		return
+// generateAndLoadCaddyfile reconciles the shared Caddyfile for the selected local Caddy container. A full candidate
+// reaches disk only after Caddy accepts it. Without an admin endpoint, the controller keeps a saved full file intact
+// and writes a bootstrap config only when the file is absent or already a bootstrap.
+func (c *Controller) generateAndLoadCaddyfile(ctx context.Context, containers []store.ContainerRecord) error {
+	caddyCtr := selectLocalCaddyContainer(containers, c.machineID)
+	if caddyCtr == nil {
+		// Caddy is not running locally which means there is no reliable source for the global config, skipping.
+		return nil
 	}
 
-	caddyfile, err := c.generator.Generate(ctx, containers, caddyAvailable)
+	saved, readErr := os.ReadFile(c.caddyfilePath)
+	if readErr != nil && !errors.Is(readErr, os.ErrNotExist) {
+		return fmt.Errorf("read saved Caddyfile: %w", readErr)
+	}
+	haveSaved := readErr == nil
+
+	healthyCtrs := filterHealthyContainers(containers)
+	fingerprint := fingerprintContainers(healthyCtrs)
+
+	if !caddyCtr.State.Running || !c.client.IsAvailable() {
+		if haveSaved && !isBootstrapCaddyfile(string(saved)) {
+			// Caddy may need this file to restart or roll back. A hosts-only replacement could drop
+			// storage or other global settings while the admin API is unavailable.
+			if caddyCtr.State.Running {
+				return fmt.Errorf("caddy admin socket unavailable, preserving saved Caddyfile")
+			}
+			return nil
+		}
+
+		bootstrap, err := c.generator.Generate(ctx, *caddyCtr, healthyCtrs, true)
 		if err != nil {
-		c.log.Error("Failed to generate Caddyfile configuration.", "err", err)
-		return
+			return fmt.Errorf("generate Caddy bootstrap config: %w", err)
+		}
+		if err = c.writeCaddyfileIfChanged(bootstrap); err != nil {
+			return fmt.Errorf("save Caddy bootstrap config: %w", err)
+		}
+		if caddyCtr.State.Running {
+			return fmt.Errorf("caddy admin socket unavailable, bootstrap config saved")
+		}
+		return nil
 	}
 
-	if !caddyAvailable {
-		// Caddy is not running so the generated Caddyfile should not include user-defined configs thus must be valid.
-		// It's safe to write the config to disk so that when Caddy is deployed on this machine, it can pick it up.
-		if err = c.writeCaddyfileIfChanged(caddyfile); err != nil {
-			c.log.Error("Failed to write Caddyfile to disk.", "err", err)
-			return
-		}
-		c.log.Debug("Caddy is not running on this machine, skipping configuration load.", "path", c.caddyfilePath)
-		return
+	if haveSaved &&
+		caddyfileBody(string(saved)) == c.lastSavedBody &&
+		!isBootstrapCaddyfile(string(saved)) &&
+		c.lastCaddyCtrID == caddyCtr.ID &&
+		c.lastStartedAt == caddyCtr.State.StartedAt &&
+		c.lastGlobal == caddyCtr.ServiceSpec.CaddyConfig() &&
+		slices.EqualFunc(fingerprint, c.lastFingerprint, containerFingerprint.Equal) {
+		// No changes to the inputs that affect the generated Caddyfile, so no reload is needed.
+		return nil
 	}
 
-	// Caddy is available, try to load the config which may fail if the config is invalid. Generally, a config can
-	// pass the adaptation/validation step but still fail to load, for example, if it references resources that are
-	// not available.
+	caddyfile, err := c.generator.Generate(ctx, *caddyCtr, healthyCtrs, false)
+	if err != nil {
+		return fmt.Errorf("generate Caddyfile: %w", err)
+	}
+	// Try to load the config which may fail if the config is invalid. Generally, a config can pass
+	// the adaptation/validation step but still fail to load, for example, if it references resources
+	// that are not available.
 	if err = c.client.Load(ctx, caddyfile); err != nil {
-		c.log.Error("Failed to load new Caddy configuration into local Caddy instance.",
-			"err", err, "path", c.caddyfilePath)
-		// Mark the cache stale so the next container change retries the load even if the container set is unchanged.
-		c.lastFingerprint = nil
-		// Don't write invalid config to disk.
-		return
+		return fmt.Errorf("load Caddyfile: %w", err)
+	}
+	if err = c.writeCaddyfileIfChanged(caddyfile); err != nil {
+		return fmt.Errorf("save loaded Caddyfile: %w", err)
 	}
 	c.lastFingerprint = fingerprint
-
-	// Config loaded successfully, now write it to disk.
-	if err = c.writeCaddyfileIfChanged(caddyfile); err != nil {
-		c.log.Error("Failed to write Caddyfile to disk after successful load.", "err", err)
-		// Config is already loaded in Caddy, so this is not critical. The next regeneration retries the disk write.
-		return
-	}
-
+	c.lastCaddyCtrID = caddyCtr.ID
+	c.lastStartedAt = caddyCtr.State.StartedAt
+	c.lastGlobal = caddyCtr.ServiceSpec.CaddyConfig()
+	c.lastSavedBody = caddyfileBody(caddyfile)
 	c.log.Info("New Caddy configuration loaded into local Caddy instance.", "path", c.caddyfilePath)
+
+	return nil
+}
+
+// isBootstrapCaddyfile distinguishes a reduced startup file from a full file that must survive Caddy outage.
+// It also recognizes the older daemon's offline file. That file omitted every x-caddy block, including globals,
+// so treating it as a protected full file would preserve the configuration-loss bug:
+// https://github.com/psviderski/uncloud/issues/412
+func isBootstrapCaddyfile(caddyfile string) bool {
+	return strings.Contains(caddyfile, bootstrapMarker) || strings.Contains(caddyfile, legacyBootstrapMarker)
 }
 
 // fingerprintContainers returns a fingerprint of containers that the Caddyfile generator depends on.
 func fingerprintContainers(containers []store.ContainerRecord) []containerFingerprint {
 	fingerprints := make([]containerFingerprint, len(containers))
 	for i, cr := range containers {
-		// Ignore ports parsing error as not much we can do about it. The generator just logs them and continues.
+		// Ignore ports parsing error as not much we can do about it. The generator just logs them and skips
+		// the container.
 		ports, _ := cr.Container.ServicePorts()
 		fingerprints[i] = containerFingerprint{
 			ID:          cr.Container.ID,
@@ -220,21 +288,71 @@ func fingerprintContainers(containers []store.ContainerRecord) []containerFinger
 	return fingerprints
 }
 
-// writeCaddyfileIfChanged writes the Caddyfile content to disk with proper permissions only if its body differs
-// from the last successfully written content. The first line of the Caddyfile carries a generation timestamp that
-// changes on every regeneration, so it's excluded from the comparison to avoid redundant writes.
+// selectLocalCaddyContainer chooses which local Caddy container supplies global Caddy config. A running container
+// takes precedence over a newer stopped replacement, even if the running container is unhealthy. If two revisions
+// run at once, the shared admin socket does not identify its owner, so this choice remains best effort.
+func selectLocalCaddyContainer(records []store.ContainerRecord, machineID string) *api.ServiceContainer {
+	var selected *api.ServiceContainer
+	for _, cr := range records {
+		ctr := cr.Container
+		if cr.MachineID != machineID || ctr.ServiceName() != CaddyServiceName || ctr.IsHook() {
+			continue
+		}
+		if selected == nil {
+			selected = &ctr
+			continue
+		}
+		if ctr.State.Running != selected.State.Running {
+			if ctr.State.Running {
+				selected = &ctr
+			}
+			continue
+		}
+		if ctr.CreatedTime().Compare(selected.CreatedTime()) > 0 {
+			selected = &ctr
+		}
+	}
+
+	return selected
+}
+
+// writeCaddyfileIfChanged atomically replaces the saved Caddyfile only if its body differs from the new content.
 func (c *Controller) writeCaddyfileIfChanged(caddyfile string) error {
-	if caddyfileBody(caddyfile) == caddyfileBody(c.lastCaddyfile) {
+	saved, err := os.ReadFile(c.caddyfilePath)
+	if err != nil && !errors.Is(err, os.ErrNotExist) {
+		return fmt.Errorf("read Caddyfile '%s': %w", c.caddyfilePath, err)
+	}
+	if err == nil && caddyfileBody(caddyfile) == caddyfileBody(string(saved)) {
 		return nil
 	}
 
-	if err := os.WriteFile(c.caddyfilePath, []byte(caddyfile), 0o640); err != nil {
-		return fmt.Errorf("write Caddyfile to file '%s': %w", c.caddyfilePath, err)
+	dir := filepath.Dir(c.caddyfilePath)
+	tmp, err := os.CreateTemp(dir, ".Caddyfile-*")
+	if err != nil {
+		return fmt.Errorf("create temporary Caddyfile: %w", err)
 	}
-	if err := fs.Chown(c.caddyfilePath, "", CaddyGroup); err != nil {
-		return fmt.Errorf("change owner of Caddyfile '%s': %w", c.caddyfilePath, err)
+	defer os.Remove(tmp.Name())
+	defer tmp.Close()
+
+	if err = tmp.Chmod(0o640); err != nil {
+		return fmt.Errorf("set temporary Caddyfile permissions: %w", err)
+	}
+	if err = fs.Chown(tmp.Name(), "", c.fileGroup); err != nil {
+		return fmt.Errorf("change owner of temporary Caddyfile: %w", err)
+	}
+
+	if _, err = tmp.WriteString(caddyfile); err != nil {
+		return fmt.Errorf("write temporary Caddyfile: %w", err)
+	}
+	if err = tmp.Sync(); err != nil {
+		return fmt.Errorf("sync temporary Caddyfile: %w", err)
+	}
+	if err = tmp.Close(); err != nil {
+		return fmt.Errorf("close temporary Caddyfile: %w", err)
+	}
+	if err = os.Rename(tmp.Name(), c.caddyfilePath); err != nil {
+		return fmt.Errorf("replace Caddyfile '%s': %w", c.caddyfilePath, err)
 	}
-	c.lastCaddyfile = caddyfile
 
 	return nil
 }
@@ -247,30 +365,3 @@ func caddyfileBody(caddyfile string) string {
 	}
 	return caddyfile
 }
-
-func (c *Controller) generateJSONConfig(containers []store.ContainerRecord) error {
-	serviceContainers := make([]api.ServiceContainer, len(containers))
-	for i, cr := range containers {
-		serviceContainers[i] = cr.Container
-	}
-
-	config, err := GenerateJSONConfig(serviceContainers, c.machineID)
-	if err != nil {
-		return err
-	}
-
-	configBytes, err := json.MarshalIndent(config, "", "    ")
-	if err != nil {
-		return fmt.Errorf("marshal Caddy configuration: %w", err)
-	}
-	configPath := filepath.Join(filepath.Dir(c.caddyfilePath), "caddy.json")
-
-	if err = os.WriteFile(configPath, configBytes, 0o640); err != nil {
-		return fmt.Errorf("write Caddy configuration to file '%s': %w", configPath, err)
-	}
-	if err = fs.Chown(configPath, "", CaddyGroup); err != nil {
-		return fmt.Errorf("change owner of Caddy configuration file '%s': %w", configPath, err)
-	}
-
-	return nil
-}

internal/machine/caddyconfig/controller_test.go

@@ -1,14 +1,488 @@
 package caddyconfig
 
 import (
+	"context"
+	"io"
+	"log/slog"
+	"net/http"
 	"net/netip"
+	"os"
+	"os/user"
+	"path/filepath"
 	"reflect"
+	"strconv"
+	"strings"
+	"sync"
+	"sync/atomic"
 	"testing"
+	"time"
 
+	"github.com/docker/docker/api/types/container"
+	"github.com/psviderski/uncloud/internal/machine/store"
 	"github.com/psviderski/uncloud/pkg/api"
 	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
 )
 
+func testController(t *testing.T, socketPath string) *Controller {
+	t.Helper()
+	group, err := user.LookupGroupId(strconv.Itoa(os.Getegid()))
+	require.NoError(t, err)
+	path := filepath.Join(t.TempDir(), "Caddyfile")
+	client := NewCaddyAdminClient(socketPath)
+	return &Controller{
+		machineID:     "test-machine-id",
+		caddyfilePath: path,
+		generator:     NewCaddyfileGenerator("test-machine-id", "test-machine", client, nil),
+		client:        client,
+		log:           slog.Default(),
+		fileGroup:     group.Name,
+	}
+}
+
+type testCaddyAdmin struct {
+	mu                    sync.Mutex
+	adaptRequests         []string
+	loadCount             int
+	rejectAdaptContaining string
+	rejectLoad            bool
+}
+
+func (a *testCaddyAdmin) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	switch r.URL.Path {
+	case "/adapt":
+		body, err := io.ReadAll(r.Body)
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		a.mu.Lock()
+		a.adaptRequests = append(a.adaptRequests, string(body))
+		reject := a.rejectAdaptContaining != "" && strings.Contains(string(body), a.rejectAdaptContaining)
+		a.mu.Unlock()
+		if reject {
+			http.Error(w, "invalid Caddyfile", http.StatusBadRequest)
+			return
+		}
+		_, _ = io.WriteString(w, `{"result":{}}`)
+	case "/load":
+		a.mu.Lock()
+		a.loadCount++
+		reject := a.rejectLoad
+		a.mu.Unlock()
+		if reject {
+			http.Error(w, "load rejected", http.StatusBadRequest)
+		}
+	default:
+		http.NotFound(w, r)
+	}
+}
+
+func (a *testCaddyAdmin) snapshot() ([]string, int) {
+	a.mu.Lock()
+	defer a.mu.Unlock()
+	return append([]string(nil), a.adaptRequests...), a.loadCount
+}
+
+func (a *testCaddyAdmin) setRejectLoad(reject bool) {
+	a.mu.Lock()
+	a.rejectLoad = reject
+	a.mu.Unlock()
+}
+
+func TestController_GenerateAndLoadCaddyfile(t *testing.T) {
+	t.Run("keeps the saved file when there is no local Caddy container", func(t *testing.T) {
+		controller := testController(t, filepath.Join(t.TempDir(), "missing.sock"))
+		saved := "# previous full Caddyfile\n"
+		require.NoError(t, os.WriteFile(controller.caddyfilePath, []byte(saved), 0o640))
+		remote := newContainerRecordWithCaddyConfig("caddy", "10.210.0.2", "{ remote }",
+			"other-machine", time.Now())
+
+		require.NoError(t, controller.generateAndLoadCaddyfile(context.Background(), []store.ContainerRecord{remote}))
+		got, err := os.ReadFile(controller.caddyfilePath)
+		require.NoError(t, err)
+		assert.Equal(t, saved, string(got))
+	})
+
+	t.Run("does not publish a bootstrap with an invalid global template", func(t *testing.T) {
+		controller := testController(t, filepath.Join(t.TempDir(), "missing.sock"))
+		caddyCtr := newContainerRecordWithCaddyConfig("caddy", "10.210.0.2", "{{upstreams",
+			"test-machine-id", time.Now())
+
+		require.ErrorContains(t, controller.generateAndLoadCaddyfile(context.Background(),
+			[]store.ContainerRecord{caddyCtr}), "render template")
+		_, err := os.Stat(controller.caddyfilePath)
+		assert.ErrorIs(t, err, os.ErrNotExist)
+	})
+
+	t.Run("bootstraps unhealthy Caddy with its globals and healthy routes", func(t *testing.T) {
+		controller := testController(t, filepath.Join(t.TempDir(), "missing.sock"))
+		caddyCtr := newContainerRecordWithCaddyConfig("caddy", "10.210.0.2", "{\n\tstorage uncloud\n}",
+			"test-machine-id", time.Now())
+		caddyCtr.Container.State.Health = &container.Health{Status: "unhealthy"}
+		newerStopped := newContainerRecordWithCaddyConfig("caddy", "10.210.0.6", "{\n\tstorage replacement\n}",
+			"test-machine-id", time.Now().Add(time.Minute))
+		newerStopped.Container.State.Running = false
+		app := newContainerRecordWithPorts("web", "10.210.0.3", []string{"app.example.com:8080/http"},
+			"test-machine-id")
+		app.Container.ServiceSpec.Caddy = &api.CaddySpec{Config: "custom.example.com { respond app }"}
+		unhealthy := newContainerRecordWithPorts("unhealthy", "10.210.0.4",
+			[]string{"unhealthy.example.com:8080/http"}, "test-machine-id")
+		unhealthy.Container.State.Health = &container.Health{Status: "unhealthy"}
+		hook := newContainerRecordWithPorts("hook", "10.210.0.5",
+			[]string{"hook.example.com:8080/http"}, "test-machine-id")
+		hook.Container.Config.Labels[api.LabelHook] = "pre-deploy"
+
+		err := controller.generateAndLoadCaddyfile(context.Background(),
+			[]store.ContainerRecord{newerStopped, caddyCtr, app, unhealthy, hook})
+		require.ErrorContains(t, err, "admin socket unavailable")
+		saved, err := os.ReadFile(controller.caddyfilePath)
+		require.NoError(t, err)
+		assert.Contains(t, string(saved), bootstrapMarker+caddyCtr.Container.ID)
+		assert.Contains(t, string(saved), "storage uncloud")
+		assert.NotContains(t, string(saved), "storage replacement")
+		assert.Contains(t, string(saved), "app.example.com")
+		assert.NotContains(t, string(saved), "custom.example.com")
+		assert.NotContains(t, string(saved), "unhealthy.example.com")
+		assert.NotContains(t, string(saved), "hook.example.com")
+	})
+
+	t.Run("replaces a legacy offline file with a bootstrap containing globals", func(t *testing.T) {
+		controller := testController(t, filepath.Join(t.TempDir(), "missing.sock"))
+		legacy := "# generated by older daemon\nhttp:// { respond ok }\n" + legacyBootstrapMarker + "\n"
+		require.NoError(t, os.WriteFile(controller.caddyfilePath, []byte(legacy), 0o640))
+		caddyCtr := newContainerRecordWithCaddyConfig("caddy", "10.210.0.2", "{\n\tstorage uncloud\n}",
+			"test-machine-id", time.Now())
+
+		err := controller.generateAndLoadCaddyfile(context.Background(), []store.ContainerRecord{caddyCtr})
+		require.ErrorContains(t, err, "admin socket unavailable")
+		saved, err := os.ReadFile(controller.caddyfilePath)
+		require.NoError(t, err)
+		assert.Contains(t, string(saved), "storage uncloud")
+		assert.Contains(t, string(saved), bootstrapMarker+caddyCtr.Container.ID)
+		assert.NotContains(t, string(saved), legacyBootstrapMarker)
+	})
+
+	t.Run("saves a bootstrap for a stopped Caddy container with no file", func(t *testing.T) {
+		controller := testController(t, filepath.Join(t.TempDir(), "missing.sock"))
+		caddyCtr := newContainerRecordWithCaddyConfig("caddy", "10.210.0.2", "{\n\tstorage uncloud\n}",
+			"test-machine-id", time.Now())
+		caddyCtr.Container.State.Running = false
+
+		require.NoError(t, controller.generateAndLoadCaddyfile(context.Background(), []store.ContainerRecord{caddyCtr}))
+		saved, err := os.ReadFile(controller.caddyfilePath)
+		require.NoError(t, err)
+		assert.Contains(t, string(saved), bootstrapMarker+caddyCtr.Container.ID)
+		assert.Contains(t, string(saved), "storage uncloud")
+	})
+
+	for _, tc := range []struct {
+		name    string
+		running bool
+	}{
+		{name: "preserves a full file when the admin socket is unavailable", running: true},
+		{name: "preserves a stopped container's full file", running: false},
+	} {
+		t.Run(tc.name, func(t *testing.T) {
+			controller := testController(t, filepath.Join(t.TempDir(), "missing.sock"))
+			saved := "{\n\tstorage uncloud\n}\n\nold.example.com { respond old }\n"
+			require.NoError(t, os.WriteFile(controller.caddyfilePath, []byte(saved), 0o640))
+			caddyCtr := newContainerRecordWithCaddyConfig("caddy", "10.210.0.2", "{\n\tstorage new\n}",
+				"test-machine-id", time.Now())
+			caddyCtr.Container.State.Running = tc.running
+			app := newContainerRecordWithPorts("web", "10.210.0.3", []string{"new.example.com:8080/http"},
+				"test-machine-id")
+
+			err := controller.generateAndLoadCaddyfile(context.Background(), []store.ContainerRecord{caddyCtr, app})
+			if tc.running {
+				require.ErrorContains(t, err, "admin socket unavailable")
+			} else {
+				require.NoError(t, err)
+			}
+			got, err := os.ReadFile(controller.caddyfilePath)
+			require.NoError(t, err)
+			assert.Equal(t, saved, string(got))
+		})
+	}
+
+	t.Run("loads a full file and reloads after Caddy restarts", func(t *testing.T) {
+		admin := &testCaddyAdmin{}
+		controller := testController(t, testAdminServer(t, admin.ServeHTTP))
+		caddyCtr := newContainerRecordWithCaddyConfig("caddy", "10.210.0.2", "{\n\tstorage uncloud\n}",
+			"test-machine-id", time.Now())
+		caddyCtr.Container.State.Health = &container.Health{Status: "unhealthy"}
+		app := newContainerRecordWithCaddyConfig("web", "10.210.0.3", "app.example.com { respond app }",
+			"test-machine-id", time.Now())
+		records := []store.ContainerRecord{caddyCtr, app}
+
+		require.NoError(t, controller.generateAndLoadCaddyfile(context.Background(), records))
+		saved, err := os.ReadFile(controller.caddyfilePath)
+		require.NoError(t, err)
+		assert.Contains(t, string(saved), "storage uncloud")
+		assert.Contains(t, string(saved), "app.example.com")
+		assert.NotContains(t, string(saved), bootstrapMarker)
+		adapted, loads := admin.snapshot()
+		require.NotEmpty(t, adapted)
+		assert.Contains(t, adapted[0], "storage uncloud")
+		assert.Equal(t, 1, loads)
+
+		require.NoError(t, controller.generateAndLoadCaddyfile(context.Background(), records))
+		_, loads = admin.snapshot()
+		assert.Equal(t, 1, loads, "unchanged inputs should not reload Caddy")
+
+		records[0].Container.State.StartedAt = time.Now().UTC().Format(time.RFC3339Nano)
+		require.NoError(t, controller.generateAndLoadCaddyfile(context.Background(), records))
+		_, loads = admin.snapshot()
+		assert.Equal(t, 2, loads, "a restarted Caddy process needs the full configuration")
+	})
+
+	t.Run("reloads when an application route changes", func(t *testing.T) {
+		admin := &testCaddyAdmin{}
+		controller := testController(t, testAdminServer(t, admin.ServeHTTP))
+		caddyCtr := newContainerRecordWithCaddyConfig("caddy", "10.210.0.2", "{\n\tstorage uncloud\n}",
+			"test-machine-id", time.Now())
+		app := newContainerRecordWithPorts("web", "10.210.0.3", []string{"app.example.com:8080/http"},
+			"test-machine-id")
+		records := []store.ContainerRecord{caddyCtr, app}
+
+		require.NoError(t, controller.generateAndLoadCaddyfile(context.Background(), records))
+		_, loads := admin.snapshot()
+		assert.Equal(t, 1, loads)
+
+		records[1] = newContainerRecordWithPorts("web", "10.210.0.4",
+			[]string{"app.example.com:8080/http"}, "test-machine-id")
+		require.NoError(t, controller.generateAndLoadCaddyfile(context.Background(), records))
+		saved, err := os.ReadFile(controller.caddyfilePath)
+		require.NoError(t, err)
+		assert.Contains(t, string(saved), "10.210.0.4:8080")
+		assert.NotContains(t, string(saved), "10.210.0.3:8080")
+		_, loads = admin.snapshot()
+		assert.Equal(t, 2, loads)
+	})
+
+	t.Run("rejects invalid globals without loading or replacing the saved file", func(t *testing.T) {
+		admin := &testCaddyAdmin{rejectAdaptContaining: "storage rejected"}
+		controller := testController(t, testAdminServer(t, admin.ServeHTTP))
+		saved := "{\n\tstorage uncloud\n}\n\nold.example.com { respond old }\n"
+		require.NoError(t, os.WriteFile(controller.caddyfilePath, []byte(saved), 0o640))
+		caddyCtr := newContainerRecordWithCaddyConfig("caddy", "10.210.0.2", "{\n\tstorage rejected\n}",
+			"test-machine-id", time.Now())
+
+		err := controller.generateAndLoadCaddyfile(context.Background(), []store.ContainerRecord{caddyCtr})
+		require.ErrorContains(t, err, "validate user-defined global Caddy config")
+		got, err := os.ReadFile(controller.caddyfilePath)
+		require.NoError(t, err)
+		assert.Equal(t, saved, string(got))
+		_, loads := admin.snapshot()
+		assert.Zero(t, loads)
+	})
+
+	t.Run("skips invalid application custom config", func(t *testing.T) {
+		admin := &testCaddyAdmin{rejectAdaptContaining: "invalid.example.com"}
+		controller := testController(t, testAdminServer(t, admin.ServeHTTP))
+		caddyCtr := newContainerRecordWithCaddyConfig("caddy", "10.210.0.2", "{\n\tstorage uncloud\n}",
+			"test-machine-id", time.Now())
+		invalid := newContainerRecordWithCaddyConfig("invalid", "10.210.0.3",
+			"invalid.example.com { respond bad }", "test-machine-id", time.Now())
+		valid := newContainerRecordWithCaddyConfig("valid", "10.210.0.4",
+			"valid.example.com { respond good }", "test-machine-id", time.Now())
+
+		require.NoError(t, controller.generateAndLoadCaddyfile(context.Background(),
+			[]store.ContainerRecord{caddyCtr, invalid, valid}))
+		saved, err := os.ReadFile(controller.caddyfilePath)
+		require.NoError(t, err)
+		assert.Contains(t, string(saved), "storage uncloud")
+		assert.Contains(t, string(saved), "valid.example.com")
+		assert.NotContains(t, string(saved), "invalid.example.com")
+		assert.Contains(t, string(saved), "Skipped invalid user-defined configs")
+		_, loads := admin.snapshot()
+		assert.Equal(t, 1, loads)
+	})
+
+	t.Run("keeps the saved file when application validation cannot complete", func(t *testing.T) {
+		var loads atomic.Int64
+		socket := testAdminServer(t, func(w http.ResponseWriter, r *http.Request) {
+			switch r.URL.Path {
+			case "/adapt":
+				http.Error(w, "adapter unavailable", http.StatusInternalServerError)
+			case "/load":
+				loads.Add(1)
+			default:
+				http.NotFound(w, r)
+			}
+		})
+		controller := testController(t, socket)
+		saved := "old.example.com { respond old }\n"
+		require.NoError(t, os.WriteFile(controller.caddyfilePath, []byte(saved), 0o640))
+		caddyCtr := newContainerRecordWithCaddyConfig("caddy", "10.210.0.2", "",
+			"test-machine-id", time.Now())
+		app := newContainerRecordWithCaddyConfig("web", "10.210.0.3", "new.example.com { respond new }",
+			"test-machine-id", time.Now())
+
+		err := controller.generateAndLoadCaddyfile(context.Background(), []store.ContainerRecord{caddyCtr, app})
+		require.ErrorContains(t, err, "validate Caddy config for service")
+		got, err := os.ReadFile(controller.caddyfilePath)
+		require.NoError(t, err)
+		assert.Equal(t, saved, string(got))
+		assert.Zero(t, loads.Load())
+	})
+
+	t.Run("retries a rejected load without changing inputs", func(t *testing.T) {
+		admin := &testCaddyAdmin{rejectLoad: true}
+		controller := testController(t, testAdminServer(t, admin.ServeHTTP))
+		saved := "{\n\tstorage old\n}\n\nold.example.com { respond old }\n"
+		require.NoError(t, os.WriteFile(controller.caddyfilePath, []byte(saved), 0o640))
+		caddyCtr := newContainerRecordWithCaddyConfig("caddy", "10.210.0.2", "{\n\tstorage uncloud\n}",
+			"test-machine-id", time.Now())
+		records := []store.ContainerRecord{caddyCtr}
+
+		require.ErrorContains(t, controller.generateAndLoadCaddyfile(context.Background(), records), "load Caddyfile")
+		got, err := os.ReadFile(controller.caddyfilePath)
+		require.NoError(t, err)
+		assert.Equal(t, saved, string(got))
+		admin.setRejectLoad(false)
+
+		require.NoError(t, controller.generateAndLoadCaddyfile(context.Background(), records))
+		got, err = os.ReadFile(controller.caddyfilePath)
+		require.NoError(t, err)
+		assert.Contains(t, string(got), "storage uncloud")
+		_, loads := admin.snapshot()
+		assert.Equal(t, 2, loads)
+	})
+
+	t.Run("retries saving after a successful load", func(t *testing.T) {
+		admin := &testCaddyAdmin{}
+		controller := testController(t, testAdminServer(t, admin.ServeHTTP))
+		group := controller.fileGroup
+		controller.fileGroup = "uncloud-test-group-that-does-not-exist"
+		saved := "{\n\tstorage old\n}\n\nold.example.com { respond old }\n"
+		require.NoError(t, os.WriteFile(controller.caddyfilePath, []byte(saved), 0o640))
+		caddyCtr := newContainerRecordWithCaddyConfig("caddy", "10.210.0.2", "{\n\tstorage uncloud\n}",
+			"test-machine-id", time.Now())
+		records := []store.ContainerRecord{caddyCtr}
+
+		require.ErrorContains(t, controller.generateAndLoadCaddyfile(context.Background(), records), "save loaded Caddyfile")
+		got, err := os.ReadFile(controller.caddyfilePath)
+		require.NoError(t, err)
+		assert.Equal(t, saved, string(got))
+		controller.fileGroup = group
+
+		require.NoError(t, controller.generateAndLoadCaddyfile(context.Background(), records))
+		got, err = os.ReadFile(controller.caddyfilePath)
+		require.NoError(t, err)
+		assert.Contains(t, string(got), "storage uncloud")
+		_, loads := admin.snapshot()
+		assert.Equal(t, 2, loads)
+		require.NoError(t, controller.generateAndLoadCaddyfile(context.Background(), records))
+		_, loads = admin.snapshot()
+		assert.Equal(t, 2, loads, "a loaded and saved revision should not reload")
+	})
+
+	t.Run("loads a saved bootstrap when the admin socket becomes available", func(t *testing.T) {
+		controller := testController(t, filepath.Join(t.TempDir(), "missing.sock"))
+		caddyCtr := newContainerRecordWithCaddyConfig("caddy", "10.210.0.2", "{\n\tstorage uncloud\n}",
+			"test-machine-id", time.Now())
+		records := []store.ContainerRecord{caddyCtr}
+		require.Error(t, controller.generateAndLoadCaddyfile(context.Background(), records))
+		bootstrap, err := os.ReadFile(controller.caddyfilePath)
+		require.NoError(t, err)
+		assert.Contains(t, string(bootstrap), bootstrapMarker)
+
+		admin := &testCaddyAdmin{}
+		socket := testAdminServer(t, admin.ServeHTTP)
+		controller.client = NewCaddyAdminClient(socket)
+		controller.generator = NewCaddyfileGenerator("test-machine-id", "test-machine", controller.client, nil)
+		require.NoError(t, controller.generateAndLoadCaddyfile(context.Background(), records))
+		full, err := os.ReadFile(controller.caddyfilePath)
+		require.NoError(t, err)
+		assert.NotContains(t, string(full), bootstrapMarker)
+		_, loads := admin.snapshot()
+		assert.Equal(t, 1, loads)
+
+		require.NoError(t, os.WriteFile(controller.caddyfilePath, bootstrap, 0o640))
+		require.NoError(t, controller.generateAndLoadCaddyfile(context.Background(), records))
+		_, loads = admin.snapshot()
+		assert.Equal(t, 2, loads, "a saved bootstrap is not an applied full configuration")
+	})
+}
+
+func TestController_WriteCaddyfileIfChanged(t *testing.T) {
+	t.Run("publishes a complete file with the configured group", func(t *testing.T) {
+		controller := testController(t, filepath.Join(t.TempDir(), "missing.sock"))
+		caddyfile := "# Generated now\n{\n\tstorage uncloud\n}\n"
+
+		require.NoError(t, controller.writeCaddyfileIfChanged(caddyfile))
+		got, err := os.ReadFile(controller.caddyfilePath)
+		require.NoError(t, err)
+		assert.Equal(t, caddyfile, string(got))
+		info, err := os.Stat(controller.caddyfilePath)
+		require.NoError(t, err)
+		assert.Equal(t, os.FileMode(0o640), info.Mode().Perm())
+	})
+
+	t.Run("does not replace a file when only the timestamp changes", func(t *testing.T) {
+		controller := testController(t, filepath.Join(t.TempDir(), "missing.sock"))
+		saved := "# Generated yesterday\nsite.example.com { respond ok }\n"
+		require.NoError(t, os.WriteFile(controller.caddyfilePath, []byte(saved), 0o640))
+		before, err := os.Stat(controller.caddyfilePath)
+		require.NoError(t, err)
+
+		require.NoError(t, controller.writeCaddyfileIfChanged(
+			"# Generated today\nsite.example.com { respond ok }\n"))
+		got, err := os.ReadFile(controller.caddyfilePath)
+		require.NoError(t, err)
+		assert.Equal(t, saved, string(got))
+		after, err := os.Stat(controller.caddyfilePath)
+		require.NoError(t, err)
+		assert.True(t, os.SameFile(before, after), "an unchanged body should not replace the file")
+	})
+
+	t.Run("preserves the previous file when publication fails", func(t *testing.T) {
+		controller := testController(t, filepath.Join(t.TempDir(), "missing.sock"))
+		controller.fileGroup = "uncloud-test-group-that-does-not-exist"
+		saved := "# previous\nsite.example.com { respond old }\n"
+		require.NoError(t, os.WriteFile(controller.caddyfilePath, []byte(saved), 0o640))
+
+		err := controller.writeCaddyfileIfChanged("# next\nsite.example.com { respond new }\n")
+		require.ErrorContains(t, err, "change owner of temporary Caddyfile")
+		got, err := os.ReadFile(controller.caddyfilePath)
+		require.NoError(t, err)
+		assert.Equal(t, saved, string(got))
+		tmpFiles, err := filepath.Glob(filepath.Join(filepath.Dir(controller.caddyfilePath), ".Caddyfile-*"))
+		require.NoError(t, err)
+		assert.Empty(t, tmpFiles)
+	})
+}
+
+func TestSelectLocalCaddyContainer(t *testing.T) {
+	t.Run("prefers a running unhealthy container over a newer stopped one", func(t *testing.T) {
+		older := newContainerRecordWithCaddyConfig("caddy", "10.210.0.2", "{ older }",
+			"test-machine-id", time.Now().Add(-time.Hour))
+		older.Container.State.Health = &container.Health{Status: "unhealthy"}
+		newer := newContainerRecordWithCaddyConfig("caddy", "10.210.0.3", "{ newer }",
+			"test-machine-id", time.Now())
+		newer.Container.State.Running = false
+
+		selected := selectLocalCaddyContainer([]store.ContainerRecord{newer, older}, "test-machine-id")
+		require.NotNil(t, selected)
+		assert.Equal(t, older.Container.ID, selected.ID)
+	})
+
+	t.Run("ignores remote and hook containers", func(t *testing.T) {
+		local := newContainerRecordWithCaddyConfig("caddy", "10.210.0.2", "{ local }",
+			"test-machine-id", time.Now().Add(-time.Hour))
+		remote := newContainerRecordWithCaddyConfig("caddy", "10.210.0.3", "{ remote }",
+			"other-machine", time.Now())
+		hook := newContainerRecordWithCaddyConfig("caddy", "10.210.0.4", "{ hook }",
+			"test-machine-id", time.Now())
+		hook.Container.Config.Labels[api.LabelHook] = "pre-deploy"
+
+		selected := selectLocalCaddyContainer([]store.ContainerRecord{remote, hook, local}, "test-machine-id")
+		require.NotNil(t, selected)
+		assert.Equal(t, local.Container.ID, selected.ID)
+	})
+}
+
 // TestContainerFingerprint_EqualCoversAllFields is a guard: when a field is added to containerFingerprint,
 // Equal must also compare it. A mutation of any single field should flip equality to false. If this test fails
 // after adding a field, update Equal to include it.

internal/machine/caddyconfig/jsonconfig.go

@@ -1,141 +0,0 @@
-package caddyconfig
-
-import (
-	"encoding/json"
-	"errors"
-	"fmt"
-	"maps"
-	"net/http"
-	"slices"
-	"strconv"
-	"time"
-
-	"github.com/caddyserver/caddy/v2"
-	"github.com/caddyserver/caddy/v2/caddyconfig"
-	"github.com/caddyserver/caddy/v2/modules/caddyhttp"
-	"github.com/caddyserver/caddy/v2/modules/caddyhttp/reverseproxy"
-	"github.com/psviderski/uncloud/pkg/api"
-)
-
-func GenerateJSONConfig(containers []api.ServiceContainer, verifyResponse string) (*caddy.Config, error) {
-	httpHostUpstreams, httpsHostUpstreams := httpUpstreamsFromPorts(containers)
-
-	var warnings []caddyconfig.Warning
-	servers := make(map[string]*caddyhttp.Server)
-	servers["http"] = &caddyhttp.Server{
-		Listen: []string{fmt.Sprintf(":%d", caddyhttp.DefaultHTTPPort)},
-		// All http requests to this server are logged to the default logger.
-		Logs: &caddyhttp.ServerLogConfig{},
-		Routes: append(
-			hostUpstreamsToRoutes(httpHostUpstreams, &warnings),
-			// Add a route to respond with a static verification response at the /.uncloud-verify path.
-			verificationRoute(verifyResponse, &warnings),
-		),
-	}
-	servers["https"] = &caddyhttp.Server{
-		Listen: []string{fmt.Sprintf(":%d", caddyhttp.DefaultHTTPSPort)},
-		// All https requests to this server are logged to the default logger.
-		Logs:   &caddyhttp.ServerLogConfig{},
-		Routes: hostUpstreamsToRoutes(httpsHostUpstreams, &warnings),
-	}
-
-	httpApp := caddyhttp.App{
-		Servers: servers,
-	}
-	config := &caddy.Config{
-		AppsRaw: caddy.ModuleMap{
-			"http": caddyconfig.JSON(httpApp, &warnings),
-		},
-	}
-
-	var err error
-	if len(warnings) > 0 {
-		// warnings only contains errors from JSON marshaling, which are highly unlikely with correct code.
-		for _, w := range warnings {
-			err = errors.Join(err, errors.New(w.Message))
-		}
-		return nil, fmt.Errorf("marshal Caddy configuration: %w", err)
-	}
-
-	return config, nil
-}
-
-// hostUpstreamsToRoutes converts a map of hostnames to upstreams to a list of Caddy routes.
-func hostUpstreamsToRoutes(hostUpstreams map[string][]string, warnings *[]caddyconfig.Warning) []caddyhttp.Route {
-	// Sort hostnames for deterministic output.
-	hostnames := slices.Collect(maps.Keys(hostUpstreams))
-	slices.Sort(hostnames)
-
-	routes := make([]caddyhttp.Route, 0, len(hostUpstreams))
-	for _, hostname := range hostnames {
-		upstreams := hostUpstreams[hostname]
-		upstreamPool := make([]*reverseproxy.Upstream, len(upstreams))
-		for i, upstream := range upstreams {
-			upstreamPool[i] = &reverseproxy.Upstream{
-				Dial: upstream,
-			}
-		}
-		handler := &reverseproxy.Handler{
-			HealthChecks: &reverseproxy.HealthChecks{
-				// Enable passive health checks to automatically detect unhealthy upstreams.
-				Passive: &reverseproxy.PassiveHealthChecks{
-					FailDuration: caddy.Duration(30 * time.Second),
-				},
-			},
-			LoadBalancing: &reverseproxy.LoadBalancing{
-				// Retry failed requests to skip over temporarily unavailable upstreams.
-				Retries: 3,
-			},
-			Upstreams: upstreamPool,
-		}
-
-		routes = append(routes, caddyhttp.Route{
-			MatcherSetsRaw: caddyhttp.RawMatcherSets{
-				{
-					"host": caddyconfig.JSON(caddyhttp.MatchHost{hostname}, warnings),
-				},
-			},
-			HandlersRaw: []json.RawMessage{
-				caddyconfig.JSONModuleObject(handler, "handler", "reverse_proxy", warnings),
-			},
-		})
-	}
-	return routes
-}
-
-// verificationRoute returns a Caddy route that responds with the given static response at the /.uncloud-verify path.
-func verificationRoute(response string, warnings *[]caddyconfig.Warning) caddyhttp.Route {
-	// Return the following route:
-	// {
-	//   "match": [
-	//     {
-	//       "path": [
-	//         "/.uncloud-verify"
-	//       ]
-	//     }
-	//   ],
-	//   "handle": [
-	//     {
-	//       "handler": "static_response",
-	//       "body": "<response>",
-	//       "status_code": 200
-	//     }
-	//   ]
-	// }
-
-	staticResponse := caddyhttp.StaticResponse{
-		StatusCode: caddyhttp.WeakString(strconv.Itoa(http.StatusOK)),
-		Body:       response,
-	}
-
-	return caddyhttp.Route{
-		MatcherSetsRaw: caddyhttp.RawMatcherSets{
-			{
-				"path": caddyconfig.JSON(caddyhttp.MatchPath{VerifyPath}, warnings),
-			},
-		},
-		HandlersRaw: []json.RawMessage{
-			caddyconfig.JSONModuleObject(staticResponse, "handler", "static_response", warnings),
-		},
-	}
-}

internal/machine/caddyconfig/jsonconfig_test.go

@@ -1,378 +0,0 @@
-package caddyconfig
-
-import (
-	"strings"
-	"testing"
-
-	"github.com/docker/docker/api/types/container"
-	"github.com/docker/docker/api/types/network"
-	"github.com/psviderski/uncloud/internal/machine/docker"
-	"github.com/psviderski/uncloud/pkg/api"
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-)
-
-func TestGenerateJSONConfig(t *testing.T) {
-	configWithoutServices := `{
-		"servers": {
-			"http": {
-				"listen": [":80"],
-				"routes": [{
-					"match": [{"path": ["/.uncloud-verify"]}],
-					"handle": [{
-						"body": "verification-response-body",
-						"handler": "static_response",
-						"status_code": 200
-					}]
-				}],
-				"logs": {}
-			},
-			"https": {
-				"listen": [":443"],
-				"logs": {}
-			}
-		}
-	}`
-
-	tests := []struct {
-		name       string
-		containers []api.ServiceContainer
-		want       string
-		wantErr    bool
-	}{
-		{
-			name:       "empty containers",
-			containers: []api.ServiceContainer{},
-			want:       configWithoutServices,
-			wantErr:    false,
-		},
-
-		{
-			name: "HTTP container",
-			containers: []api.ServiceContainer{
-				newContainer("10.210.0.2", "app.example.com:8080/http"),
-			},
-			want: `{
-                "servers": {
-                    "http": {
-                        "listen": [":80"],
-                        "routes": [
-                            {
-                                "match": [{"host": ["app.example.com"]}],
-                                "handle": [{
-                                    "handler": "reverse_proxy",
-									"health_checks": {
-                                        "passive": {
-                                            "fail_duration": 30000000000
-                                        }
-                                    },
-                                    "load_balancing": {
-                                        "retries": 3
-                                    },
-                                    "upstreams": [{"dial": "10.210.0.2:8080"}]
-                                }]
-                            },
-                            {
-                                "match": [{"path": ["/.uncloud-verify"]}],
-                                "handle": [{
-                                    "body": "verification-response-body",
-                                    "handler": "static_response",
-                                    "status_code": 200
-                                }]
-                            }
-                        ],
-						"logs": {}
-                    },
-                    "https": {
-                        "listen": [":443"],
-						"logs": {}
-                    }
-                }
-            }`,
-			wantErr: false,
-		},
-		{
-			name: "load balancing multiple containers",
-			containers: []api.ServiceContainer{
-				newContainer("10.210.0.2", "app.example.com:8080/http"),
-				newContainer("10.210.0.3", "app.example.com:8080/http"),
-			},
-			want: `{
-                "servers": {
-                    "http": {
-                        "listen": [":80"],
-                        "routes": [
-                            {
-                                "match": [{"host": ["app.example.com"]}],
-                                "handle": [{
-                                    "handler": "reverse_proxy",
-									"health_checks": {
-                                        "passive": {
-                                            "fail_duration": 30000000000
-                                        }
-                                    },
-                                    "load_balancing": {
-                                        "retries": 3
-                                    },
-                                    "upstreams": [
-                                        {"dial": "10.210.0.2:8080"},
-                                        {"dial": "10.210.0.3:8080"}
-                                    ]
-                                }]
-                            },
-                            {
-                                "match": [{"path": ["/.uncloud-verify"]}],
-                                "handle": [{
-                                    "body": "verification-response-body",
-                                    "handler": "static_response",
-                                    "status_code": 200
-                                }]
-                            }
-                        ],
-						"logs": {}
-                    },
-                    "https": {
-                        "listen": [":443"],
-						"logs": {}
-                    }
-                }
-            }`,
-			wantErr: false,
-		},
-		{
-			name: "HTTPS container",
-			containers: []api.ServiceContainer{
-				newContainer("10.210.0.2", "secure.example.com:8000/https"),
-			},
-			want: `{
-                "servers": {
-                    "http": {
-                        "listen": [":80"],
-                        "routes": [
-                            {
-                                "match": [{"path": ["/.uncloud-verify"]}],
-                                "handle": [{
-                                    "body": "verification-response-body",
-                                    "handler": "static_response",
-                                    "status_code": 200
-                                }]
-                            }
-                        ],
-						"logs": {}
-                    },
-                    "https": {
-                        "listen": [":443"],
-                        "routes": [
-                            {
-                                "match": [{"host": ["secure.example.com"]}],
-                                "handle": [{
-                                    "handler": "reverse_proxy",
-									"health_checks": {
-                                        "passive": {
-                                            "fail_duration": 30000000000
-                                        }
-                                    },
-                                    "load_balancing": {
-                                        "retries": 3
-                                    },
-                                    "upstreams": [{"dial": "10.210.0.2:8000"}]
-                                }]
-                            }
-                        ],
-						"logs": {}
-                    }
-                }
-            }`,
-			wantErr: false,
-		},
-		{
-			name: "mixed HTTP and HTTPS",
-			containers: []api.ServiceContainer{
-				newContainer("10.210.0.2",
-					"app.example.com:8080/http",
-					"web.example.com:8000/http"),
-				newContainer("10.210.0.3",
-					"app.example.com:8080/http",
-					"secure.example.com:8888/https"),
-				newContainer("10.210.0.4",
-					"web.example.com:8000/http",
-					"secure.example.com:8888/https"),
-				newContainer("10.210.0.5",
-					"app.example.com:8080/http",
-					"web.example.com:8000/http",
-					"secure.example.com:8888/https"),
-			},
-			want: `{
-                "servers": {
-                    "http": {
-                        "listen": [":80"],
-                        "routes": [
-                            {
-                                "match": [{"host": ["app.example.com"]}],
-                                "handle": [{
-                                    "handler": "reverse_proxy",
-									"health_checks": {
-                                        "passive": {
-                                            "fail_duration": 30000000000
-                                        }
-                                    },
-                                    "load_balancing": {
-                                        "retries": 3
-                                    },
-                                    "upstreams": [
-										{"dial": "10.210.0.2:8080"},
-										{"dial": "10.210.0.3:8080"},
-										{"dial": "10.210.0.5:8080"}
-									]
-                                }]
-                            },
-							{
-                                "match": [{"host": ["web.example.com"]}],
-                                "handle": [{
-                                    "handler": "reverse_proxy",
-									"health_checks": {
-                                        "passive": {
-                                            "fail_duration": 30000000000
-                                        }
-                                    },
-                                    "load_balancing": {
-                                        "retries": 3
-                                    },
-                                    "upstreams": [
-										{"dial": "10.210.0.2:8000"},
-										{"dial": "10.210.0.4:8000"},
-										{"dial": "10.210.0.5:8000"}
-									]
-                                }]
-                            },
-                            {
-                                "match": [{"path": ["/.uncloud-verify"]}],
-                                "handle": [{
-                                    "body": "verification-response-body",
-                                    "handler": "static_response",
-                                    "status_code": 200
-                                }]
-                            }
-                        ],
-						"logs": {}
-                    },
-                    "https": {
-                        "listen": [":443"],
-                        "routes": [
-                            {
-                                "match": [{"host": ["secure.example.com"]}],
-                                "handle": [{
-                                    "handler": "reverse_proxy",
-									"health_checks": {
-                                        "passive": {
-                                            "fail_duration": 30000000000
-                                        }
-                                    },
-                                    "load_balancing": {
-                                        "retries": 3
-                                    },
-                                    "upstreams": [
-										{"dial": "10.210.0.3:8888"},
-										{"dial": "10.210.0.4:8888"},
-										{"dial": "10.210.0.5:8888"}
-									]
-                                }]
-                            }
-                        ],
-						"logs": {}
-                    }
-                }
-            }`,
-			wantErr: false,
-		},
-		{
-			name: "container without uncloud network ignored",
-			containers: []api.ServiceContainer{
-				newContainerWithoutNetwork("ignored.example.com:8080/http"),
-			},
-			want:    configWithoutServices,
-			wantErr: false,
-		},
-		{
-			name: "container with invalid port ignored",
-			containers: []api.ServiceContainer{
-				newContainer("10.210.0.2", "invalid-port"),
-			},
-			want:    configWithoutServices,
-			wantErr: false,
-		},
-		{
-			name: "containers with unsupported protocols and host mode ignored",
-			containers: []api.ServiceContainer{
-				newContainer("10.210.0.2", "5000/tcp"),
-				newContainer("10.210.0.3", "5000/udp"),
-				newContainer("10.210.0.4", "80:8080/tcp@host"),
-			},
-			want:    configWithoutServices,
-			wantErr: false,
-		},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			config, err := GenerateJSONConfig(tt.containers, "verification-response-body")
-
-			if tt.wantErr {
-				assert.Error(t, err)
-				return
-			}
-			require.NoError(t, err)
-
-			require.Len(t, config.AppsRaw, 1, "Expected one http app")
-			require.Contains(t, config.AppsRaw, "http", "Expected http app")
-
-			assert.JSONEq(t, tt.want, string(config.AppsRaw["http"]), "Generated Caddy app config doesn't match")
-		})
-	}
-}
-
-func newContainer(ip string, ports ...string) api.ServiceContainer {
-	portsLabel := strings.Join(ports, ",")
-	return api.ServiceContainer{Container: api.Container{InspectResponse: container.InspectResponse{
-		ContainerJSONBase: &container.ContainerJSONBase{
-			State: &container.State{
-				Running: true,
-			},
-		},
-		NetworkSettings: &container.NetworkSettings{
-			Networks: map[string]*network.EndpointSettings{
-				docker.NetworkName: {
-					IPAddress: ip,
-				},
-			},
-		},
-		Config: &container.Config{
-			Labels: map[string]string{
-				api.LabelServicePorts: portsLabel,
-			},
-		},
-	}}}
-}
-
-func newContainerWithoutNetwork(ports ...string) api.ServiceContainer {
-	portsLabel := strings.Join(ports, ",")
-	return api.ServiceContainer{Container: api.Container{InspectResponse: container.InspectResponse{
-		ContainerJSONBase: &container.ContainerJSONBase{
-			State: &container.State{
-				Running: true,
-			},
-		},
-		NetworkSettings: &container.NetworkSettings{
-			Networks: map[string]*network.EndpointSettings{
-				"other-network": {
-					IPAddress: "172.17.0.2",
-				},
-			},
-		},
-		Config: &container.Config{
-			Labels: map[string]string{
-				api.LabelServicePorts: portsLabel,
-			},
-		},
-	}}}
-}

internal/machine/caddyconfig/server.go

@@ -2,6 +2,7 @@ package caddyconfig
 
 import (
 	"context"
+	"errors"
 	"os"
 
 	"google.golang.org/grpc/codes"
@@ -22,18 +23,26 @@ func NewServer(service *Service) *Server {
 	return &Server{service: service}
 }
 
-// GetConfig retrieves the current Caddy configuration from the machine.
+// GetConfig retrieves the saved Caddy configuration and the latest reconciliation error from the machine.
 func (s *Server) GetConfig(ctx context.Context, _ *emptypb.Empty) (*pb.GetCaddyConfigResponse, error) {
 	caddyfile, modifiedAt, err := s.service.Caddyfile()
 	if err != nil {
-		if os.IsNotExist(err) {
+		if errors.Is(err, os.ErrNotExist) {
+			if lastErr := s.service.LastReconciliationError(); lastErr != nil {
+				return nil, status.Errorf(codes.NotFound, "%v; last Caddy config load failed: %v", err, lastErr)
+			}
 			return nil, status.Error(codes.NotFound, err.Error())
 		}
 		return nil, status.Error(codes.Internal, err.Error())
 	}
 
+	recErr := ""
+	if lastErr := s.service.LastReconciliationError(); lastErr != nil {
+		recErr = lastErr.Error()
+	}
 	return &pb.GetCaddyConfigResponse{
 		Caddyfile:               caddyfile,
 		ModifiedAt:              timestamppb.New(modifiedAt),
+		LastReconciliationError: recErr,
 	}, nil
 }

internal/machine/caddyconfig/server_test.go

@@ -0,0 +1,62 @@
+package caddyconfig
+
+import (
+	"context"
+	"errors"
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+	"google.golang.org/protobuf/types/known/emptypb"
+)
+
+func TestServer_GetConfig(t *testing.T) {
+	t.Run("returns saved Caddyfile and reconciliation error", func(t *testing.T) {
+		dir := t.TempDir()
+		caddyfile := "example.com { respond ok }\n"
+		path := filepath.Join(dir, "Caddyfile")
+		require.NoError(t, os.WriteFile(path, []byte(caddyfile), 0o640))
+		info, err := os.Stat(path)
+		require.NoError(t, err)
+
+		service := NewService(dir)
+		service.setReconciliationResult(errors.New("module not registered: caddy.storage.uncloud"))
+		config, err := NewServer(service).GetConfig(context.Background(), &emptypb.Empty{})
+
+		require.NoError(t, err)
+		assert.Equal(t, caddyfile, config.GetCaddyfile())
+		assert.True(t, info.ModTime().Equal(config.GetModifiedAt().AsTime()))
+		assert.Equal(t, "module not registered: caddy.storage.uncloud", config.GetLastReconciliationError())
+
+		service.setReconciliationResult(nil)
+		config, err = NewServer(service).GetConfig(context.Background(), &emptypb.Empty{})
+		require.NoError(t, err)
+		assert.Empty(t, config.GetLastReconciliationError())
+	})
+
+	t.Run("returns NotFound with reconciliation error when Caddyfile is absent", func(t *testing.T) {
+		service := NewService(t.TempDir())
+		service.setReconciliationResult(errors.New("module not registered: caddy.storage.uncloud"))
+
+		config, err := NewServer(service).GetConfig(context.Background(), &emptypb.Empty{})
+
+		assert.Nil(t, config)
+		assert.Equal(t, codes.NotFound, status.Code(err))
+		assert.ErrorContains(t, err, "Caddyfile")
+		assert.ErrorContains(t, err, "last Caddy config load failed: module not registered: caddy.storage.uncloud")
+	})
+
+	t.Run("returns NotFound without reconciliation error when Caddyfile is absent", func(t *testing.T) {
+		service := NewService(t.TempDir())
+
+		config, err := NewServer(service).GetConfig(context.Background(), &emptypb.Empty{})
+
+		assert.Nil(t, config)
+		assert.Equal(t, codes.NotFound, status.Code(err))
+		assert.NotContains(t, err.Error(), "last Caddy config load failed")
+	})
+}

internal/machine/caddyconfig/service.go

@@ -4,12 +4,15 @@ import (
 	"fmt"
 	"os"
 	"path/filepath"
+	"sync"
 	"time"
 )
 
 // Service provides methods to interact with the Caddy configuration on the machine.
 type Service struct {
 	configDir               string
+	mu                      sync.RWMutex
+	lastReconciliationError error
 }
 
 // NewService creates a new Service instance with the specified Caddy configuration directory.
@@ -17,7 +20,8 @@ func NewService(configDir string) *Service {
 	return &Service{configDir: configDir}
 }
 
-// Caddyfile retrieves the current Caddy configuration (Caddyfile) from the machine's config directory.
+// Caddyfile retrieves the saved Caddyfile from the machine's config directory. The saved file may differ from the
+// running configuration if Caddy accepted a load but the subsequent write failed.
 func (s *Service) Caddyfile() (string, time.Time, error) {
 	path := filepath.Join(s.configDir, "Caddyfile")
 	content, err := os.ReadFile(path)
@@ -33,3 +37,17 @@ func (s *Service) Caddyfile() (string, time.Time, error) {
 
 	return string(content), fileInfo.ModTime(), nil
 }
+
+// LastReconciliationError reports the most recent unsuccessful controller attempt, if any. A successful attempt
+// clears it. An empty value does not prove that Caddy has loaded the saved Caddyfile.
+func (s *Service) LastReconciliationError() error {
+	s.mu.RLock()
+	defer s.mu.RUnlock()
+	return s.lastReconciliationError
+}
+
+func (s *Service) setReconciliationResult(err error) {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	s.lastReconciliationError = err
+}

internal/machine/caddyconfig/service_test.go

@@ -0,0 +1,42 @@
+package caddyconfig
+
+import (
+	"errors"
+	"sync"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestService_LastReconciliationError(t *testing.T) {
+	service := NewService(t.TempDir())
+	assert.NoError(t, service.LastReconciliationError())
+
+	service.setReconciliationResult(errors.New("global Caddy config rejected"))
+	assert.EqualError(t, service.LastReconciliationError(), "global Caddy config rejected")
+
+	service.setReconciliationResult(nil)
+	assert.NoError(t, service.LastReconciliationError())
+}
+
+func TestService_LastReconciliationErrorConcurrent(t *testing.T) {
+	service := NewService(t.TempDir())
+	var wg sync.WaitGroup
+	for range 10 {
+		wg.Add(2)
+		go func() {
+			defer wg.Done()
+			for range 100 {
+				service.setReconciliationResult(errors.New("retry"))
+				service.setReconciliationResult(nil)
+			}
+		}()
+		go func() {
+			defer wg.Done()
+			for range 100 {
+				_ = service.LastReconciliationError()
+			}
+		}()
+	}
+	wg.Wait()
+}

internal/machine/caddystorage/certificate.go

@@ -0,0 +1,79 @@
+package caddystorage
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"log/slog"
+	"strings"
+
+	"github.com/caddyserver/certmagic"
+	"github.com/psviderski/uncloud/api/pb"
+	"github.com/psviderski/uncloud/internal/machine/store"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+	"google.golang.org/protobuf/types/known/emptypb"
+)
+
+// ListCertificates lists issued certificates from this machine's Caddy storage replica.
+// Unreadable entries and invalid resource metadata are skipped. Chains and issuer data are returned as stored.
+func (s *Server) ListCertificates(ctx context.Context, _ *emptypb.Empty) (*pb.ListCertificatesResponse, error) {
+	records, err := s.store.List(ctx, "certificates/", store.KeyspaceListOptions{KeysOnly: true})
+	if err != nil {
+		if ctx.Err() != nil {
+			return nil, status.FromContextError(ctx.Err()).Err()
+		}
+		return nil, status.Errorf(codes.Internal, "list Caddy certificates: %v", err)
+	}
+
+	resp := &pb.ListCertificatesResponse{}
+	for _, record := range records {
+		if err = ctx.Err(); err != nil {
+			return nil, status.FromContextError(err).Err()
+		}
+		if !isCertificateKey(record.Key) {
+			continue
+		}
+		cert, err := s.loadIssuedCertificate(ctx, record.Key)
+		if err != nil {
+			slog.Warn("Failed to load issued certificate from Caddy storage.", "key", record.Key, "err", err)
+			continue
+		}
+		resp.Certificates = append(resp.Certificates, cert)
+	}
+
+	return resp, nil
+}
+
+// isCertificateKey recognizes CertMagic's certificates/<issuer>/<name>/<name>.crt layout.
+func isCertificateKey(key string) bool {
+	parts := strings.Split(key, "/")
+	return len(parts) == 4 && parts[0] == "certificates" && parts[3] == parts[2]+".crt"
+}
+
+func (s *Server) loadIssuedCertificate(ctx context.Context, key string) (*pb.IssuedCertificate, error) {
+	chain, err := s.store.Get(ctx, key)
+	if err != nil {
+		return nil, err
+	}
+
+	metaKey := strings.TrimSuffix(key, ".crt") + ".json"
+	meta, err := s.store.Get(ctx, metaKey)
+	if err != nil {
+		return nil, err
+	}
+
+	var resource certmagic.CertificateResource
+	if err = json.Unmarshal(meta.Value, &resource); err != nil {
+		return nil, err
+	}
+	if len(resource.SANs) == 0 || strings.TrimSpace(resource.SANs[0]) == "" {
+		return nil, fmt.Errorf("certificate metadata has no SAN")
+	}
+
+	return &pb.IssuedCertificate{
+		San:        resource.SANs[0],
+		Chain:      chain.Value,
+		IssuerData: resource.IssuerData,
+	}, nil
+}

internal/machine/caddystorage/certificate_test.go

@@ -0,0 +1,233 @@
+package caddystorage
+
+import (
+	"context"
+	"crypto/ed25519"
+	"crypto/rand"
+	"crypto/x509"
+	"crypto/x509/pkix"
+	"encoding/json"
+	"encoding/pem"
+	"errors"
+	"math/big"
+	"net"
+	"slices"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/caddyserver/certmagic"
+	"github.com/psviderski/uncloud/internal/machine/store"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+	"google.golang.org/protobuf/types/known/emptypb"
+)
+
+func TestServerListCertificates(t *testing.T) {
+	for _, sans := range [][]string{
+		{"app.example.com"}, {"*.example.com"}, {"192.0.2.1"}, {"www.example.com", "example.com"},
+	} {
+		t.Run(sans[0], func(t *testing.T) {
+			bundle, _, _ := certificateFixture(t, &x509.Certificate{
+				DNSNames:    []string{"example.com", "www.example.com"},
+				IPAddresses: []net.IP{net.ParseIP("192.0.2.1")},
+				NotAfter:    time.Date(2000, 1, 1, 0, 0, 0, 0, time.UTC),
+			})
+			key := certmagic.StorageKeys.SiteCert("local", sans[0])
+			storage := newCertificateStorage(t)
+			raw := json.RawMessage(`{"unknown_issuer_field":true}`)
+			storage.add(t, key, bundle, sans, raw)
+			storage.keys = append(storage.keys, "certificates", "certificates/local", "certificates/local/app.crt",
+				"certificates/local/app/wrong.crt", "certificates/local/app/app.crt/extra.crt",
+				"pki/authorities/local/root.crt", "ocsp/certificate")
+
+			resp, err := NewServer(storage).ListCertificates(t.Context(), &emptypb.Empty{})
+			require.NoError(t, err)
+			require.Len(t, resp.Certificates, 1)
+			cert := resp.Certificates[0]
+			assert.Equal(t, sans[0], cert.San)
+			assert.Equal(t, bundle, cert.Chain, "PEM must be returned unchanged")
+			assert.Equal(t, []byte(raw), cert.IssuerData)
+			assert.Equal(t, []string{key, strings.TrimSuffix(key, ".crt") + ".json"}, storage.loads)
+		})
+	}
+}
+
+func TestServerListCertificates_PreservesIssuerData(t *testing.T) {
+	bundle, _, _ := certificateFixture(t, &x509.Certificate{})
+	for _, raw := range []string{
+		"", "null", `{"url":"https://ca/cert/1","ca":"https://ca/directory"}`,
+		`{"url":"https://ca/cert/1","ca":"https://ca/directory","renewal_info":{"_selectedTime":"invalid"}}`,
+		`"provider-record"`, "[1,2,3]",
+	} {
+		t.Run(raw, func(t *testing.T) {
+			storage := newCertificateStorage(t)
+			storage.add(t, "certificates/custom/app/app.crt", bundle, []string{"app"}, json.RawMessage(raw))
+
+			resp, err := NewServer(storage).ListCertificates(t.Context(), &emptypb.Empty{})
+			require.NoError(t, err)
+			require.Len(t, resp.Certificates, 1)
+			assert.Equal(t, raw, string(resp.Certificates[0].IssuerData))
+		})
+	}
+}
+
+func TestServerListCertificates_OrderingAndDuplicates(t *testing.T) {
+	bundle, _, _ := certificateFixture(t, &x509.Certificate{})
+	storage := newCertificateStorage(t)
+	storage.add(t, certmagic.StorageKeys.SiteCert("z-issuer", "a.example.com"), bundle, []string{"a.example.com"}, nil)
+	storage.add(t, certmagic.StorageKeys.SiteCert("a-issuer", "z.example.com"), bundle, []string{"z.example.com"}, nil)
+	storage.add(t, certmagic.StorageKeys.SiteCert("b-issuer", "z.example.com"), bundle, []string{"z.example.com"}, nil)
+
+	resp, err := NewServer(storage).ListCertificates(t.Context(), &emptypb.Empty{})
+	require.NoError(t, err)
+	require.Len(t, resp.Certificates, 3)
+	certs := resp.Certificates
+	assert.Equal(t, []string{"z.example.com", "z.example.com", "a.example.com"},
+		[]string{certs[0].San, certs[1].San, certs[2].San})
+	for _, cert := range certs {
+		assert.Equal(t, bundle, cert.Chain)
+	}
+}
+
+func TestServerListCertificates_SkipsUnreadableEntries(t *testing.T) {
+	bundle, _, _ := certificateFixture(t, &x509.Certificate{})
+	const badKey = "certificates/local/bad/bad.crt"
+	const metaKey = "certificates/local/bad/bad.json"
+	for _, tt := range []struct {
+		name   string
+		change func(*certificateStorageStub)
+	}{
+		{"missing chain", func(s *certificateStorageStub) { delete(s.values, badKey) }},
+		{"chain read failure", func(s *certificateStorageStub) { s.loadErrors[badKey] = errors.New("offline") }},
+		{"missing metadata", func(s *certificateStorageStub) { delete(s.values, metaKey) }},
+		{"metadata read failure", func(s *certificateStorageStub) { s.loadErrors[metaKey] = errors.New("offline") }},
+		{"invalid JSON", func(s *certificateStorageStub) { s.values[metaKey] = []byte("{") }},
+		{"missing SAN", func(s *certificateStorageStub) { s.values[metaKey] = []byte(`{}`) }},
+		{"empty first SAN", func(s *certificateStorageStub) { s.values[metaKey] = []byte(`{"sans":["","app"]}`) }},
+		{"blank first SAN", func(s *certificateStorageStub) { s.values[metaKey] = []byte(`{"sans":[" "]}`) }},
+	} {
+		t.Run(tt.name, func(t *testing.T) {
+			storage := newCertificateStorage(t)
+			storage.add(t, badKey, bundle, []string{"bad"}, nil)
+			storage.add(t, "certificates/local/good/good.crt", bundle, []string{"good"}, nil)
+			tt.change(storage)
+
+			resp, err := NewServer(storage).ListCertificates(t.Context(), &emptypb.Empty{})
+			require.NoError(t, err)
+			require.Len(t, resp.Certificates, 1)
+			assert.Equal(t, "good", resp.Certificates[0].San)
+		})
+	}
+
+	t.Run("all entries unreadable", func(t *testing.T) {
+		storage := newCertificateStorage(t)
+		storage.keys = []string{badKey}
+		resp, err := NewServer(storage).ListCertificates(t.Context(), &emptypb.Empty{})
+		require.NoError(t, err)
+		assert.Empty(t, resp.Certificates)
+	})
+}
+
+func TestServerListCertificates_ListErrors(t *testing.T) {
+	for _, fail := range []bool{false, true} {
+		storage := newCertificateStorage(t)
+		if fail {
+			storage.listError = errors.New("offline")
+		}
+
+		resp, err := NewServer(storage).ListCertificates(t.Context(), &emptypb.Empty{})
+		assert.Empty(t, storage.loads)
+		if fail {
+			assert.Nil(t, resp)
+			assert.Equal(t, codes.Internal, status.Code(err))
+		} else {
+			require.NoError(t, err)
+			assert.Empty(t, resp.Certificates)
+		}
+	}
+}
+
+// Only reads are implemented. Unexpected writes panic through the nil embedded Keyspace.
+type certificateStorageStub struct {
+	*store.Keyspace
+	t          *testing.T
+	keys       []string
+	values     map[string][]byte
+	loads      []string
+	listCalls  int
+	listError  error
+	loadErrors map[string]error
+	onLoad     func(string)
+}
+
+func newCertificateStorage(t *testing.T) *certificateStorageStub {
+	return &certificateStorageStub{t: t, values: make(map[string][]byte), loadErrors: make(map[string]error)}
+}
+
+func (s *certificateStorageStub) add(t *testing.T, key string, bundle []byte, sans []string, issuerData json.RawMessage) {
+	t.Helper()
+	metaKey := strings.TrimSuffix(key, ".crt") + ".json"
+	keyKey := strings.TrimSuffix(key, ".crt") + ".key"
+	meta, err := json.Marshal(certmagic.CertificateResource{SANs: sans, IssuerData: issuerData})
+	require.NoError(t, err)
+	s.keys = append(s.keys, key, metaKey, keyKey)
+	s.values[key], s.values[metaKey], s.values[keyKey] = bundle, meta, []byte("must not read private keys")
+}
+
+func (s *certificateStorageStub) List(ctx context.Context, prefix string, opts store.KeyspaceListOptions) ([]store.Record, error) {
+	s.listCalls++
+	assert.Equal(s.t, "certificates/", prefix)
+	assert.True(s.t, opts.KeysOnly, "listing must not fetch private key values")
+	var records []store.Record
+	for _, key := range slices.Sorted(slices.Values(s.keys)) {
+		records = append(records, store.Record{Key: key})
+	}
+	return records, s.listError
+}
+
+func (s *certificateStorageStub) Get(ctx context.Context, key string) (store.Record, error) {
+	require.False(s.t, strings.HasSuffix(key, ".key"), "private keys must never be loaded")
+	s.loads = append(s.loads, key)
+	if s.onLoad != nil {
+		s.onLoad(key)
+	}
+	if err := s.loadErrors[key]; err != nil {
+		return store.Record{}, err
+	}
+	value, ok := s.values[key]
+	if !ok {
+		return store.Record{}, store.ErrKeyNotFound
+	}
+	return store.Record{Key: key, Value: value}, nil
+}
+
+func certificateFixture(t *testing.T, template *x509.Certificate) ([]byte, *x509.Certificate, *x509.Certificate) {
+	t.Helper()
+	publicKey, key, err := ed25519.GenerateKey(rand.Reader)
+	require.NoError(t, err)
+	root := &x509.Certificate{
+		SerialNumber: big.NewInt(1), Subject: pkix.Name{CommonName: "Test CA"}, IsCA: true,
+		BasicConstraintsValid: true, KeyUsage: x509.KeyUsageCertSign,
+		NotBefore: time.Date(1990, 1, 1, 0, 0, 0, 0, time.UTC),
+		NotAfter:  time.Date(2040, 1, 1, 0, 0, 0, 0, time.UTC),
+	}
+	rootDER, err := x509.CreateCertificate(rand.Reader, root, root, publicKey, key)
+	require.NoError(t, err)
+	root, err = x509.ParseCertificate(rootDER)
+	require.NoError(t, err)
+	template.SerialNumber = big.NewInt(2)
+	template.NotBefore = root.NotBefore
+	if template.NotAfter.IsZero() {
+		template.NotAfter = root.NotAfter
+	}
+	leafDER, err := x509.CreateCertificate(rand.Reader, template, root, publicKey, key)
+	require.NoError(t, err)
+	leaf, err := x509.ParseCertificate(leafDER)
+	require.NoError(t, err)
+	bundle := append(pem.EncodeToMemory(&pem.Block{Type: "CERTIFICATE", Bytes: leafDER}),
+		pem.EncodeToMemory(&pem.Block{Type: "CERTIFICATE", Bytes: rootDER})...)
+	return bundle, leaf, root
+}

internal/machine/caddystorage/server.go

@@ -25,10 +25,17 @@ const Namespace = "caddy_storage"
 // Server implements the machine-local CaddyStorage gRPC service.
 type Server struct {
 	pb.UnimplementedCaddyStorageServer
-	store *store.Keyspace
+	store keyspace
 }
 
-func NewServer(store *store.Keyspace) *Server {
+type keyspace interface {
+	Get(context.Context, string) (store.Record, error)
+	Put(context.Context, string, []byte) error
+	Delete(context.Context, string, store.KeyspaceDeleteOptions) error
+	List(context.Context, string, store.KeyspaceListOptions) ([]store.Record, error)
+}
+
+func NewServer(store keyspace) *Server {
 	return &Server{store: store}
 }
 

internal/machine/cluster.go

@@ -176,7 +176,7 @@ func (cc *clusterController) Run(ctx context.Context) error {
 	// Start the network API server before waiting for the store sync so the machine is reachable on the mesh
 	// during the sync and can serve requests that don't depend on the store.
 	// Assume the management IP can't be changed when the network is running.
-	apiAddr := net.JoinHostPort(cc.state.Network.ManagementIP.String(), strconv.Itoa(constants.MachineAPIPort))
+	apiAddr := net.JoinHostPort(cc.state.Network.ManagementIP.String(), strconv.Itoa(constants.UncloudAPIPort))
 	listener, err := net.Listen("tcp", apiAddr)
 	if err != nil {
 		return fmt.Errorf("listen API port: %w", err)

internal/machine/cluster/dns.go

@@ -4,20 +4,24 @@ import (
 	"context"
 	"encoding/json"
 	"errors"
+	"strings"
 
+	"github.com/miekg/dns"
 	"github.com/psviderski/uncloud/api/pb"
-	"github.com/psviderski/uncloud/internal/dns"
+	undns "github.com/psviderski/uncloud/internal/dns"
 	"github.com/psviderski/uncloud/internal/machine/store"
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/status"
+	"google.golang.org/protobuf/proto"
 	"google.golang.org/protobuf/types/known/emptypb"
 )
 
-// uncloudDNSKey is the key used to store the details of the reserved domain in the store.
+// uncloudDNSKey stores the cluster domain and, when reserved, its Uncloud DNS credentials.
 const uncloudDNSKey = "uncloud_dns"
 
 type uncloudDNSDomain struct {
 	// Endpoint is the API endpoint of the Uncloud DNS service where the domain is reserved.
+	// An empty endpoint means the domain is managed externally.
 	Endpoint string
 	Name     string
 	// TODO: encrypt the token in the store.
@@ -34,14 +38,14 @@ func (c *Cluster) ReserveDomain(ctx context.Context, req *pb.ReserveDomainReques
 	}
 
 	if _, err := c.storedDomain(ctx); err == nil {
-		return nil, status.Errorf(codes.AlreadyExists, "domain already reserved")
+		return nil, status.Error(codes.AlreadyExists, "cluster domain already configured")
 	} else {
 		if s := status.Convert(err); s.Code() != codes.NotFound {
 			return nil, err
 		}
 	}
 
-	dnsClient := dns.NewClient()
+	dnsClient := undns.NewClient()
 	name, token, err := dnsClient.ReserveDomain(req.Endpoint)
 	if err != nil {
 		return nil, status.Error(codes.Internal, err.Error())
@@ -60,7 +64,7 @@ func (c *Cluster) ReserveDomain(ctx context.Context, req *pb.ReserveDomainReques
 		return nil, status.Errorf(codes.Internal, "store reserved domain: %v", err)
 	}
 
-	return &pb.Domain{Name: name}, nil
+	return &pb.Domain{Name: name, Reserved: proto.Bool(true)}, nil
 }
 
 func (c *Cluster) GetDomain(ctx context.Context, _ *emptypb.Empty) (*pb.Domain, error) {
@@ -73,7 +77,7 @@ func (c *Cluster) GetDomain(ctx context.Context, _ *emptypb.Empty) (*pb.Domain,
 		return nil, err
 	}
 
-	return &pb.Domain{Name: domain.Name}, nil
+	return &pb.Domain{Name: domain.Name, Reserved: proto.Bool(domain.Endpoint != "")}, nil
 }
 
 func (c *Cluster) storedDomain(ctx context.Context) (uncloudDNSDomain, error) {
@@ -103,13 +107,63 @@ func (c *Cluster) ReleaseDomain(ctx context.Context, _ *emptypb.Empty) (*pb.Doma
 	if err != nil {
 		return nil, err
 	}
+	if domain.Endpoint == "" {
+		return nil, status.Error(codes.FailedPrecondition,
+			"cluster domain is set manually, use 'uc dns set \"\"' to unset it")
+	}
 
 	if err = c.store.Delete(ctx, uncloudDNSKey); err != nil {
 		return nil, status.Errorf(codes.Internal, "delete domain from store: %v", err)
 	}
 	// TODO: implement and call Uncloud DNS endpoint to release/delete the domain.
 
-	return &pb.Domain{Name: domain.Name}, nil
+	return &pb.Domain{Name: domain.Name, Reserved: proto.Bool(true)}, nil
+}
+
+func (c *Cluster) SetDomain(ctx context.Context, req *pb.SetDomainRequest) (*emptypb.Empty, error) {
+	if err := c.checkReady(); err != nil {
+		return nil, err
+	}
+
+	name := req.GetName()
+	if name != "" {
+		if labels, ok := dns.IsDomainName(name); !ok || labels < 2 {
+			return nil, status.Errorf(codes.InvalidArgument,
+				"invalid cluster domain '%s': must be a valid domain name with at least two labels", name)
+		}
+	}
+	name = strings.ToLower(strings.TrimSuffix(name, "."))
+
+	existing, err := c.storedDomain(ctx)
+	if err != nil && status.Code(err) != codes.NotFound {
+		return nil, err
+	}
+	if name == "" {
+		if err == nil {
+			if existing.Endpoint != "" {
+				return nil, status.Error(codes.FailedPrecondition,
+					"cluster domain is reserved in Uncloud DNS, use 'uc dns release' to release it")
+			}
+			if err := c.store.Delete(ctx, uncloudDNSKey); err != nil {
+				return nil, status.Errorf(codes.Internal, "unset cluster domain: %v", err)
+			}
+		}
+		return &emptypb.Empty{}, nil
+	}
+	if err == nil {
+		return nil, status.Error(codes.AlreadyExists, "cluster domain already configured")
+	}
+
+	domain := uncloudDNSDomain{Name: name}
+	domainJSON, err := json.Marshal(domain)
+	if err != nil {
+		return nil, status.Errorf(codes.Internal, "marshal set domain for store: %v", err)
+	}
+	if err = c.store.Put(ctx, uncloudDNSKey, domainJSON); err != nil {
+		return nil, status.Errorf(codes.Internal, "store set domain: %v", err)
+	}
+
+	return &emptypb.Empty{}, nil
 }
 
 func (c *Cluster) CreateDomainRecords(
@@ -124,12 +178,16 @@ func (c *Cluster) CreateDomainRecords(
 		return nil, err
 	}
 
-	dnsClient := dns.NewClient()
-	recordsReq := make([]dns.RecordRequest, len(req.Records))
+	if domain.Endpoint == "" {
+		return nil, status.Error(codes.FailedPrecondition, "cluster domain is not reserved in Uncloud DNS")
+	}
+
+	dnsClient := undns.NewClient()
+	recordsReq := make([]undns.RecordRequest, len(req.Records))
 	for i, r := range req.Records {
-		recordsReq[i] = dns.RecordRequest{
+		recordsReq[i] = undns.RecordRequest{
 			Name:   r.Name,
-			Type:   dns.RecordType(r.Type.String()),
+			Type:   undns.RecordType(r.Type.String()),
 			Values: r.Values,
 		}
 	}
@@ -149,9 +207,9 @@ func (c *Cluster) CreateDomainRecords(
 		}
 
 		switch r.Type {
-		case dns.RecordTypeA:
+		case undns.RecordTypeA:
 			resp.Records[i].Type = pb.DNSRecord_A
-		case dns.RecordTypeAAAA:
+		case undns.RecordTypeAAAA:
 			resp.Records[i].Type = pb.DNSRecord_AAAA
 		}
 	}

internal/machine/constants/constants.go

@@ -1,8 +1,9 @@
 package constants
 
 const (
-	// MachineAPIPort is the port for the Machine API service on the management WireGuard network.
-	MachineAPIPort = 51000
-	// UnregistryPort is the port for the embedded container registry listening on the machine IP.
+	// UncloudAPIPort is the TCP port on which each machine serves the Uncloud API over the management WireGuard
+	// network.
+	UncloudAPIPort = 51000
+	// UnregistryPort is the TCP port for the embedded container registry listening on the machine IP.
 	UnregistryPort = 51500
 )

internal/machine/docker/server.go

@@ -538,6 +538,15 @@ func (s *Server) CreateServiceContainer(
 		containerName = fmt.Sprintf("%s-%s", spec.Name, suffix)
 	}
 
+	desiredSpec := spec
+	renderedSpec, renderErr := desiredSpec.RenderRuntimeTemplates(api.RuntimeTemplateContext{
+		Container: api.RuntimeTemplateContainerContext{Name: containerName},
+	})
+	if renderErr != nil {
+		return nil, status.Errorf(codes.InvalidArgument, "render runtime templates: %v", renderErr)
+	}
+	spec = renderedSpec
+
 	envVars := maps.Clone(spec.Container.Env)
 	if envVars == nil {
 		envVars = make(api.EnvVars)
@@ -745,7 +754,7 @@ func (s *Server) CreateServiceContainer(
 		_ = s.client.ContainerRemove(ctx, resp.ID, container.RemoveOptions{RemoveVolumes: true})
 	}
 
-	specBytes, err := json.Marshal(spec)
+	specBytes, err := json.Marshal(desiredSpec)
 	if err != nil {
 		removeContainer()
 		return nil, status.Errorf(codes.Internal, "marshal service spec: %v", err)

internal/machine/docker/server_runtime_template_test.go

@@ -0,0 +1,53 @@
+package docker
+
+import (
+	"context"
+	"encoding/json"
+	"strings"
+	"testing"
+
+	"github.com/psviderski/uncloud/api/pb"
+	"github.com/psviderski/uncloud/pkg/api"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+	_ "modernc.org/sqlite"
+)
+
+func TestCreateServiceContainer_RejectsRuntimeTemplateError(t *testing.T) {
+	t.Parallel()
+
+	desiredSpec := api.ServiceSpec{
+		Name: "web",
+		Container: api.ContainerSpec{
+			Image: "busybox:latest",
+			VolumeMounts: []api.VolumeMount{
+				{VolumeName: "data", ContainerPath: "/data"},
+			},
+		},
+		Volumes: []api.VolumeSpec{
+			{
+				Name: "data",
+				Type: api.VolumeTypeBind,
+				BindOptions: &api.BindOptions{
+					// Early validation takes the valid branch. Rendering with the real container name takes the invalid one.
+					HostPath: `/host/{{if eq .Container.Name "web-a1b2"}}{{.Container.ID}}{{else}}valid{{end}}`,
+				},
+			},
+		},
+	}
+	specJSON, err := json.Marshal(desiredSpec)
+	require.NoError(t, err)
+
+	server := &Server{}
+	_, err = server.CreateServiceContainer(context.Background(), &pb.CreateServiceContainerRequest{
+		ServiceId:     strings.Repeat("a", 32),
+		ServiceSpec:   specJSON,
+		ContainerName: "web-a1b2",
+	})
+
+	require.Error(t, err)
+	assert.Equal(t, codes.InvalidArgument, status.Code(err))
+	assert.ErrorContains(t, err, "render runtime template in bind volume 'data' host path")
+}

internal/machine/firewall/iptables_linux.go

@@ -48,12 +48,12 @@ func ConfigureIptablesChains(machineIP netip.Addr, wgPort int) error {
 		}
 	}
 
-	// Allow cluster machines to access Machine API via the management IPv6 WireGuard network.
+	// Allow cluster machines to access the Uncloud API via the management IPv6 WireGuard network.
 	acceptMachineAPIRule := []string{
 		"-i", network.WireGuardInterfaceName,
 		"-s", "fdcc::/16",
 		"-p", "tcp",
-		"--dport", strconv.Itoa(constants.MachineAPIPort),
+		"--dport", strconv.Itoa(constants.UncloudAPIPort),
 		"-j", "ACCEPT",
 	}
 	// Allow Corrosion gossip traffic from cluster machines via the management IPv6 WireGuard network.

internal/machine/machine.go

@@ -58,8 +58,12 @@ import (
 )
 
 const (
-	DefaultMachineSockPath = "/run/uncloud/machine.sock"
-	DefaultUncloudSockPath = "/run/uncloud/uncloud.sock"
+	// DefaultMachineAPISockPath is the default path to the Unix socket for API requests handled directly by this
+	// machine.
+	DefaultMachineAPISockPath = "/run/uncloud/machine.sock"
+	// DefaultClusterAPISockPath is the default path to the Unix socket for the client-facing API that routes requests
+	// across the cluster.
+	DefaultClusterAPISockPath = "/run/uncloud/api/uncloud.sock"
 	DefaultSockGroup          = "uncloud"
 	// DefaultCaddyAdminSockPath is the default path to the Caddy admin socket for validating the generated Caddy
 	// reverse proxy configuration.
@@ -71,8 +75,14 @@ const (
 type Config struct {
 	// DataDir is the directory where the machine stores its persistent state. Default is /var/lib/uncloud.
 	DataDir string
-	MachineSockPath string
-	UncloudSockPath string
+	// MachineAPISockPath is the path to the Unix socket for API requests handled directly by this machine.
+	MachineAPISockPath string
+	// ClusterAPISockPath is the path to the Unix socket for the client-facing API that routes requests across the
+	// cluster.
+	ClusterAPISockPath string
+	// ClusterAPIListener is an optional pre-bound listener for the client-facing API that routes requests across the
+	// cluster. If set, Run takes ownership of it and closes it on shutdown or startup failure.
+	ClusterAPIListener net.Listener
 
 	CorrosionDataDir string
 	// CorrosionRunDir is the runtime directory for the corrosion service.
@@ -104,11 +114,11 @@ func (c *Config) SetDefaults() (*Config, error) {
 	if cfg.DataDir == "" {
 		cfg.DataDir = "/var/lib/uncloud"
 	}
-	if cfg.MachineSockPath == "" {
-		cfg.MachineSockPath = DefaultMachineSockPath
+	if cfg.MachineAPISockPath == "" {
+		cfg.MachineAPISockPath = DefaultMachineAPISockPath
 	}
-	if cfg.UncloudSockPath == "" {
-		cfg.UncloudSockPath = DefaultUncloudSockPath
+	if cfg.ClusterAPISockPath == "" && cfg.ClusterAPIListener == nil {
+		cfg.ClusterAPISockPath = DefaultClusterAPISockPath
 	}
 
 	if cfg.DockerClient == nil {
@@ -165,7 +175,7 @@ type Machine struct {
 
 	config Config
 	state  *State
-	// started is closed when the machine is ready to serve requests on the local API server.
+	// started is closed when the machine and cluster API servers are ready to serve requests.
 	started chan struct{}
 	// initialised is closed when the machine is configured as a member of a cluster.
 	initialised chan struct{}
@@ -186,15 +196,16 @@ type Machine struct {
 	// dockerService provides high-level operations for managing Docker containers.
 	dockerService *machinedocker.Service
 	dockerServer  *machinedocker.Server
-	// localMachineServer is the gRPC server for the machine API listening on the local Unix socket.
-	localMachineServer *grpc.Server
+	// machineAPIServer handles API requests directly on this machine.
+	machineAPIServer *grpc.Server
+	// caddyService provides methods to interact with the Caddy configuration on the machine.
+	caddyService *caddyconfig.Service
 
-	// proxyDirector manages routing of gRPC requests between local and remote machine API servers.
+	// proxyDirector routes API requests to local or remote machines.
 	proxyDirector *apiproxy.Director
-	// localProxyServer is the gRPC proxy server for the machine API listening on the local Unix socket.
-	// It proxies requests to the local or remote machine API servers depending on the request targets
-	// and aggregates responses.
-	localProxyServer *grpc.Server
+	// clusterAPIServer is the client-facing gRPC server that routes API requests across the cluster. It sends requests
+	// to one or more local or remote machines and aggregates their responses.
+	clusterAPIServer *grpc.Server
 
 	// mu protects the Machine from concurrent reads and writes.
 	mu sync.RWMutex
@@ -251,11 +262,11 @@ func NewMachine(config *Config) (*Machine, error) {
 	if err != nil {
 		return nil, fmt.Errorf("create corrosion API client: %w", err)
 	}
-	corroStore := store.New(corro)
 	corroAdmin, err := corrosion.NewAdminClient(config.CorrosionAdminSockPath)
 	if err != nil {
 		return nil, fmt.Errorf("create corrosion admin client: %w", err)
 	}
+	corroStore := store.New(corro, corroAdmin)
 
 	initialised := make(chan struct{})
 	clusterReady := make(chan struct{})
@@ -269,10 +280,10 @@ func NewMachine(config *Config) (*Machine, error) {
 	}
 	dockerService := machinedocker.NewService(config.DockerClient, db)
 
-	// Init a local gRPC proxy server that proxies requests to the local or remote machine API servers.
+	// Init the client-facing API server that routes requests to local or remote machines.
 	mapper := apiproxy.NewCorrosionMapper(corroStore)
-	proxyDirector := apiproxy.NewDirector(config.MachineSockPath, constants.MachineAPIPort, mapper)
-	localProxyServer := grpc.NewServer(
+	proxyDirector := apiproxy.NewDirector(config.MachineAPISockPath, constants.UncloudAPIPort, mapper)
+	clusterAPIServer := grpc.NewServer(
 		grpc.ForceServerCodecV2(proxy.Codec()),
 		grpc.UnaryInterceptor(grpcversion.ServerUnaryInterceptor),
 		grpc.StreamInterceptor(grpcversion.ServerStreamInterceptor),
@@ -291,8 +302,9 @@ func NewMachine(config *Config) (*Machine, error) {
 		store:            corroStore,
 		cluster:          c,
 		dockerService:    dockerService,
-		localProxyServer: localProxyServer,
+		clusterAPIServer: clusterAPIServer,
 		proxyDirector:    proxyDirector,
+		caddyService:     caddyconfig.NewService(config.CaddyConfigDir),
 	}
 
 	// Machine IP will only be available after the machine is initialised as a cluster member so wrap it in a function.
@@ -307,7 +319,7 @@ func NewMachine(config *Config) (*Machine, error) {
 		NetworkReady:        m.IsNetworkReady,
 		WaitForNetworkReady: m.WaitForNetworkReady,
 	})
-	caddyServer := caddyconfig.NewServer(caddyconfig.NewService(config.CaddyConfigDir))
+	caddyServer := caddyconfig.NewServer(m.caddyService)
 
 	caddyStore, err := corroStore.Keyspace(caddystorage.Namespace)
 	if err != nil {
@@ -316,7 +328,7 @@ func NewMachine(config *Config) (*Machine, error) {
 	caddyStorageServer := caddystorage.NewServer(caddyStore)
 
 	leaseServer := distlockgrpc.NewServer(distlock.NewMemoryStore())
-	m.localMachineServer = newGRPCServer(m, c, m.dockerServer, caddyServer, caddyStorageServer, leaseServer)
+	m.machineAPIServer = newGRPCServer(m, c, m.dockerServer, caddyServer, caddyStorageServer, leaseServer)
 
 	if m.Initialised() {
 		close(m.initialised)
@@ -343,7 +355,7 @@ func newGRPCServer(
 	return s
 }
 
-// Started returns a channel that is closed when the machine is ready to serve requests on the local API server.
+// Started returns a channel that is closed when the machine and cluster API servers are ready to serve requests.
 func (m *Machine) Started() <-chan struct{} {
 	return m.started
 }
@@ -395,21 +407,54 @@ func (m *Machine) Run(ctx context.Context) error {
 	// Create a cancellable context for the Run method to allow stopping the machine gracefully.
 	ctx, m.stop = context.WithCancel(ctx)
 
+	// Take over the systemd-activated socket for the cluster API if provided, otherwise bind to the configured
+	// Unix socket path.
+	clusterAPIListener := m.config.ClusterAPIListener
+	clusterAPISockPath := m.config.ClusterAPISockPath
+	if clusterAPIListener != nil {
+		if clusterAPIListener.Addr().Network() == "unix" {
+			clusterAPISockPath = clusterAPIListener.Addr().String()
+		} else {
+			clusterAPISockPath = ""
+		}
+		defer clusterAPIListener.Close()
+	}
+
+	sockGID, err := socketGID()
+	if err != nil {
+		return err
+	}
+	if err = prepareUnixSocketDirectory(m.config.MachineAPISockPath, sockGID); err != nil {
+		return fmt.Errorf("prepare machine API Unix socket directory: %w", err)
+	}
+	// The cluster API socket activated by systemd may have been created with root group ownership.
+	// Apply the intended access permissions.
+	if clusterAPISockPath != "" {
+		if err = prepareUnixSocketDirectory(clusterAPISockPath, sockGID); err != nil {
+			return fmt.Errorf("prepare cluster API Unix socket directory: %w", err)
+		}
+	}
+
 	// Docker dependency is essential for the machine to function. Block until it's ready.
 	if err := docker.WaitDaemonReady(ctx, m.config.DockerClient); err != nil {
 		return fmt.Errorf("wait for Docker daemon: %w", err)
 	}
 	defer m.config.DockerClient.Close()
 
-	// Bind the local API listeners before starting the dependencies (e.g. corrosion) to not deal with the teardown
+	// Bind the API listeners before starting the dependencies (e.g. corrosion) to not deal with the teardown
 	// on failure.
-	machineListener, err := listenUnixSocket(m.config.MachineSockPath)
+	machineAPIListener, err := sockets.NewUnixSocket(m.config.MachineAPISockPath, sockGID)
 	if err != nil {
-		return fmt.Errorf("listen machine API unix socket %q: %w", m.config.MachineSockPath, err)
+		return fmt.Errorf("listen machine API Unix socket %q: %w", m.config.MachineAPISockPath, err)
 	}
-	proxyListener, err := listenUnixSocket(m.config.UncloudSockPath)
+	defer machineAPIListener.Close()
+
+	if clusterAPIListener == nil {
+		clusterAPIListener, err = sockets.NewUnixSocket(clusterAPISockPath, sockGID)
 		if err != nil {
-		return fmt.Errorf("listen API proxy unix socket %q: %w", m.config.UncloudSockPath, err)
+			return fmt.Errorf("listen cluster API Unix socket %q: %w", clusterAPISockPath, err)
+		}
+		defer clusterAPIListener.Close()
 	}
 
 	// Configure and start the corrosion service on the loopback if the machine is not initialised as a cluster
@@ -437,20 +482,20 @@ func (m *Machine) Run(ctx context.Context) error {
 	// Use an errgroup to coordinate error handling and graceful shutdown of multiple machine components.
 	errGroup, ctx := errgroup.WithContext(ctx)
 
-	// Start the local machine API server.
+	// Start the API server that handles requests directly on this machine.
 	errGroup.Go(func() error {
-		slog.Info("Starting local machine API server.", "path", m.config.MachineSockPath)
-		if err := m.localMachineServer.Serve(machineListener); err != nil {
-			return fmt.Errorf("local machine API server failed: %w", err)
+		slog.Info("Starting machine API server.", "path", m.config.MachineAPISockPath)
+		if err := m.machineAPIServer.Serve(machineAPIListener); err != nil {
+			return fmt.Errorf("machine API server failed: %w", err)
 		}
 		return nil
 	})
 
-	// Start the local API proxy server.
+	// Start the client-facing API server that routes requests across the cluster.
 	errGroup.Go(func() error {
-		slog.Info("Starting local API proxy server.", "path", m.config.UncloudSockPath)
-		if err := m.localProxyServer.Serve(proxyListener); err != nil {
-			return fmt.Errorf("local API proxy server failed: %w", err)
+		slog.Info("Starting cluster API server.", "path", clusterAPIListener.Addr().String())
+		if err := m.clusterAPIServer.Serve(clusterAPIListener); err != nil {
+			return fmt.Errorf("cluster API server failed: %w", err)
 		}
 		return nil
 	})
@@ -478,7 +523,7 @@ func (m *Machine) Run(ctx context.Context) error {
 
 			slog.Info("Starting cluster controller.")
 			// Update the proxy director's local address to the machine's management IP address, allowing
-			// the proxy to identify which requests should be proxied to the local machine API server.
+			// the proxy to identify which requests should be handled by the local API server.
 			m.proxyDirector.UpdateLocalAddress(m.state.Network.ManagementIP.String())
 			proxyServer := grpc.NewServer(
 				grpc.ForceServerCodecV2(proxy.Codec()),
@@ -493,7 +538,7 @@ func (m *Machine) Run(ctx context.Context) error {
 			// It will also serve the current machine ID at /.uncloud-verify to verify Caddy reachability.
 			caddyconfigCtrl, err := caddyconfig.NewController(
 				m.state.ID,
-				m.config.CaddyConfigDir,
+				m.caddyService,
 				DefaultCaddyAdminSockPath,
 				m.store,
 			)
@@ -577,17 +622,17 @@ func (m *Machine) Run(ctx context.Context) error {
 	// Shutdown goroutine.
 	errGroup.Go(func() error {
 		<-ctx.Done()
-		slog.Info("Stopping local machine API server.")
+		slog.Info("Stopping machine API server.")
 		// TODO: implement timeout for graceful shutdown.
-		m.localMachineServer.GracefulStop()
-		slog.Info("Local machine API server stopped.")
+		m.machineAPIServer.GracefulStop()
+		slog.Info("Machine API server stopped.")
 
-		slog.Info("Stopping local API proxy server.")
+		slog.Info("Stopping cluster API server.")
 		// TODO: implement timeout for graceful shutdown.
-		m.localProxyServer.GracefulStop()
+		m.clusterAPIServer.GracefulStop()
 		// Close the proxy director to close all backend connections.
 		m.proxyDirector.Close()
-		slog.Info("Local API proxy server stopped.")
+		slog.Info("Cluster API server stopped.")
 
 		return nil
 	})
@@ -616,38 +661,46 @@ func (m *Machine) Run(ctx context.Context) error {
 	return err
 }
 
-// listenUnixSocket creates a new Unix socket listener with the specified path. The socket file is created with 0660
-// access mode and uncloud group if the group is found, otherwise it falls back to the root group.
-func listenUnixSocket(path string) (net.Listener, error) {
+// socketGID returns the uncloud group ID, or the root group ID if the uncloud group does not exist.
+func socketGID() (int, error) {
 	gid := 0 // Fall back to the root group if the uncloud group is not found.
 	group, err := user.LookupGroup(DefaultSockGroup)
 	if err != nil {
 		//goland:noinspection GoTypeAssertionOnErrors
 		if _, ok := err.(user.UnknownGroupError); ok {
 			slog.Info(
-				"Specified group not found, using root group for the API socket.",
-				"group", DefaultSockGroup, "path", path,
+				"Specified group not found, using root group for API sockets.",
+				"group", DefaultSockGroup,
 			)
 		} else {
-			return nil, fmt.Errorf("lookup %q group ID (GID): %w", DefaultSockGroup, err)
+			return 0, fmt.Errorf("lookup %q group ID (GID): %w", DefaultSockGroup, err)
 		}
 	} else {
 		gid, err = strconv.Atoi(group.Gid)
 		if err != nil {
-			return nil, fmt.Errorf("parse %q group ID (GID) %q: %w", DefaultSockGroup, group.Gid, err)
+			return 0, fmt.Errorf("parse %q group ID (GID) %q: %w", DefaultSockGroup, group.Gid, err)
 		}
 	}
 
-	// Ensure the parent directory exists and has the correct group permissions.
+	return gid, nil
+}
+
+// prepareUnixSocketDirectory ensures the socket's parent directory has the intended group and permissions.
+func prepareUnixSocketDirectory(path string, gid int) error {
 	parent, _ := filepath.Split(path)
-	if err = os.MkdirAll(parent, 0o750); err != nil {
-		return nil, fmt.Errorf("create directory %q: %w", parent, err)
+	if err := os.MkdirAll(parent, 0o750); err != nil {
+		return fmt.Errorf("create directory %q: %w", parent, err)
 	}
-	if err = os.Chown(parent, -1, gid); err != nil {
-		return nil, fmt.Errorf("chown directory %q: %w", parent, err)
+	if err := os.Chown(parent, -1, gid); err != nil {
+		return fmt.Errorf("chown directory %q: %w", parent, err)
+	}
+	// MkdirAll preserves the mode of an existing directory. A Docker container may have created the bind-mount source
+	// first, so apply the intended mode explicitly.
+	if err := os.Chmod(parent, 0o750); err != nil {
+		return fmt.Errorf("chmod directory %q: %w", parent, err)
 	}
 
-	return sockets.NewUnixSocket(path, gid)
+	return nil
 }
 
 func (m *Machine) configureCorrosion() error {

internal/machine/state.go

@@ -10,6 +10,7 @@ import (
 
 	"github.com/psviderski/uncloud/internal/machine/network"
 	"github.com/psviderski/uncloud/internal/secret"
+	"github.com/psviderski/uncloud/pkg/api"
 )
 
 const (
@@ -31,7 +32,7 @@ type State struct {
 	// MinStoreVersion is the cluster store version this machine must reach before participating.
 	// Per-actor vector (Corrosion actor UUID → max processed db_version) captured from an existing
 	// member at join time. Cleared once reached.
-	MinStoreVersion map[string]uint64 `json:",omitempty"`
+	MinStoreVersion api.StoreVersion `json:",omitempty"`
 	// CorrosionAPIToken authenticates requests to the local Corrosion API.
 	CorrosionAPIToken secret.Secret `json:",omitempty"`
 

internal/machine/store/replication.go

@@ -8,14 +8,16 @@ import (
 	"time"
 
 	"github.com/google/uuid"
+	"github.com/psviderski/uncloud/internal/corrosion"
+	"github.com/psviderski/uncloud/pkg/api"
 )
 
 // ErrInvalidStoreVersion indicates an invalid actor UUID in a store version vector.
 var ErrInvalidStoreVersion = errors.New("invalid store version")
 
 // WaitForVersion waits until the local store has reached each actor's minimum version in minVersion, with no known
-// missing or pending transactions through those versions. Corrosion may satisfy a version by applying its surviving
-// changes or by marking it complete because its changes have been superseded.
+// missing or pending transactions through those versions from active members. Corrosion may satisfy a version
+// by applying its surviving changes or by marking it complete because its changes have been superseded.
 //
 // Waiting normally makes the captured data available locally. However, if another write replaces some of that data
 // before it arrives, Corrosion can complete the older version without transferring the replaced data. If the
@@ -27,7 +29,7 @@ var ErrInvalidStoreVersion = errors.New("invalid store version")
 //
 // The method observes native replication without initiating synchronisation.
 // An empty minVersion requires no replication. The context controls cancellation and the deadline.
-func (s *Store) WaitForVersion(ctx context.Context, minVersion map[string]uint64) error {
+func (s *Store) WaitForVersion(ctx context.Context, minVersion api.StoreVersion) error {
 	if err := ctx.Err(); err != nil {
 		return err
 	}
@@ -52,14 +54,50 @@ func (s *Store) WaitForVersion(ctx context.Context, minVersion map[string]uint64
 		return nil
 	}
 
-	// Check all bookkeeping in one SQLite snapshot. Raw buffered rows can remain after application,
-	// but sequence bookkeeping is removed in the same transaction that applies or clears a version.
-	query := `WITH min_version(actor_id, version) AS (VALUES ` + strings.Join(placeholders, ", ") + `)
+	queryPrefix := `WITH min_version(actor_id, version) AS (VALUES ` + strings.Join(placeholders, ", ") + `)
 		SELECT NOT EXISTS (
 			SELECT 1 FROM min_version
 			LEFT JOIN crsql_db_versions AS current ON current.site_id = min_version.actor_id
-			WHERE COALESCE(current.db_version, 0) < min_version.version
-				OR EXISTS (
+			WHERE COALESCE(current.db_version, 0) < min_version.version`
+
+	versionsReached := false
+
+	ticker := time.NewTicker(100 * time.Millisecond)
+	defer ticker.Stop()
+
+	for {
+		query := queryPrefix
+		queryArgs := args
+		// Check for gaps and pending transactions only after the requested versions are reached.
+		if versionsReached {
+			states, err := s.corroAdmin.ClusterMembershipStates(true)
+			if err != nil {
+				return fmt.Errorf("get cluster membership for store replication: %w", err)
+			}
+
+			activePlaceholders := make([]string, 0, len(states))
+			queryArgs = make([]any, len(args), len(args)+len(states))
+			copy(queryArgs, args)
+			for _, state := range states {
+				if state.State != corrosion.MembershipStateAlive && state.State != corrosion.MembershipStateSuspect {
+					continue
+				}
+				actorID, err := uuid.Parse(state.ID)
+				if err != nil {
+					return fmt.Errorf("parse cluster member actor '%s': %w", state.ID, err)
+				}
+				activePlaceholders = append(activePlaceholders, "?")
+				queryArgs = append(queryArgs, [16]byte(actorID))
+			}
+			if len(activePlaceholders) > 0 {
+				// Check active members' gaps and pending sequences in the same query for simplicity.
+				// Buffered rows can remain in __corro_buffered_changes after application, but sequence bookkeeping
+				// is removed when a version completes.
+				query += `
+				OR (
+					min_version.actor_id IN (` + strings.Join(activePlaceholders, ", ") + `)
+					AND (
+						EXISTS (
 							SELECT 1 FROM __corro_bookkeeping_gaps
 							WHERE actor_id = min_version.actor_id AND start <= min_version.version
 						)
@@ -67,13 +105,13 @@ func (s *Store) WaitForVersion(ctx context.Context, minVersion map[string]uint64
 							SELECT 1 FROM __corro_seq_bookkeeping
 							WHERE site_id = min_version.actor_id AND db_version <= min_version.version
 						)
+					)
 				)`
+			}
+		}
+		query += ")"
 
-	ticker := time.NewTicker(100 * time.Millisecond)
-	defer ticker.Stop()
-
-	for {
-		rows, err := s.corro.QueryContext(ctx, query, args...)
+		rows, err := s.corro.QueryContext(ctx, query, queryArgs...)
 		if err != nil {
 			return fmt.Errorf("check store replication: %w", err)
 		}
@@ -83,6 +121,7 @@ func (s *Store) WaitForVersion(ctx context.Context, minVersion map[string]uint64
 			}
 			return errors.New("check store replication: store version query returned no rows")
 		}
+
 		var reached int
 		if err = rows.Scan(&reached); err != nil {
 			rows.Close()
@@ -94,7 +133,11 @@ func (s *Store) WaitForVersion(ctx context.Context, minVersion map[string]uint64
 			return fmt.Errorf("check store replication: %w", err)
 		}
 		if reached == 1 {
-			return ctx.Err()
+			if versionsReached {
+				return nil
+			}
+			versionsReached = true
+			continue
 		}
 
 		select {

internal/machine/store/store.go

@@ -10,6 +10,7 @@ import (
 	"github.com/google/uuid"
 	"github.com/psviderski/uncloud/api/pb"
 	"github.com/psviderski/uncloud/internal/corrosion"
+	"github.com/psviderski/uncloud/pkg/api"
 	"google.golang.org/protobuf/encoding/protojson"
 )
 
@@ -24,10 +25,11 @@ var (
 // Store is a cluster store backed by a distributed Corrosion database.
 type Store struct {
 	corro      *corrosion.APIClient
+	corroAdmin *corrosion.AdminClient
 }
 
-func New(corro *corrosion.APIClient) *Store {
-	return &Store{corro: corro}
+func New(corro *corrosion.APIClient, corroAdmin *corrosion.AdminClient) *Store {
+	return &Store{corro: corro, corroAdmin: corroAdmin}
 }
 
 // Get retrieves an unnamespaced legacy value.
@@ -81,14 +83,14 @@ func (s *Store) Delete(ctx context.Context, key string) error {
 // limitations documented there.
 //
 // Capturing a vector does not wait for replication or prevent further writes.
-func (s *Store) Version(ctx context.Context) (map[string]uint64, error) {
+func (s *Store) Version(ctx context.Context) (api.StoreVersion, error) {
 	rows, err := s.corro.QueryContext(ctx, "SELECT site_id, db_version FROM crsql_db_versions")
 	if err != nil {
 		return nil, fmt.Errorf("query crsql_db_versions: %w", err)
 	}
 	defer rows.Close()
 
-	versions := make(map[string]uint64)
+	versions := make(api.StoreVersion)
 	for rows.Next() {
 		var (
 			siteID  []byte

internal/ucind/cluster.go

@@ -5,6 +5,7 @@ import (
 	"errors"
 	"fmt"
 	"net/netip"
+	"sync"
 	"time"
 
 	"github.com/cenkalti/backoff/v4"
@@ -16,6 +17,7 @@ import (
 	"github.com/psviderski/uncloud/api/pb"
 	"github.com/psviderski/uncloud/internal/machine"
 	"github.com/psviderski/uncloud/internal/machine/cluster"
+	"github.com/psviderski/uncloud/pkg/client"
 	"google.golang.org/protobuf/types/known/emptypb"
 )
 
@@ -322,6 +324,78 @@ func (p *Provisioner) WaitClusterReady(ctx context.Context, c Cluster, timeout t
 	return nil
 }
 
+// WaitClusterMeshReady waits until every machine can reach every other machine through the WireGuard mesh network.
+func (p *Provisioner) WaitClusterMeshReady(ctx context.Context, c Cluster, timeout time.Duration) error {
+	if len(c.Machines) < 2 {
+		return nil
+	}
+
+	clients := make([]*client.Client, len(c.Machines))
+	for i := range c.Machines {
+		cli, err := c.Machines[i].Connect(ctx)
+		if err != nil {
+			return fmt.Errorf("connect to machine '%s' over TCP '%s': %w",
+				c.Machines[i].Name, c.Machines[i].APIAddress, err)
+		}
+		clients[i] = cli
+		defer cli.Close()
+	}
+
+	type machinePair struct {
+		source int
+		target int
+	}
+	pairs := make([]machinePair, 0, len(c.Machines)*(len(c.Machines)-1))
+	for source := range c.Machines {
+		for target := range c.Machines {
+			if source != target {
+				pairs = append(pairs, machinePair{source: source, target: target})
+			}
+		}
+	}
+
+	boff := backoff.WithContext(backoff.NewExponentialBackOff(
+		backoff.WithInitialInterval(100*time.Millisecond),
+		backoff.WithMaxInterval(time.Second),
+		backoff.WithMaxElapsedTime(timeout),
+	), ctx)
+
+	checkMeshReady := func() error {
+		errs := make([]error, len(pairs))
+		var wg sync.WaitGroup
+		for i, pair := range pairs {
+			wg.Go(func() {
+				source := c.Machines[pair.source]
+				target := c.Machines[pair.target]
+
+				probeCtx, cancel := context.WithTimeout(ctx, 2*time.Second)
+				defer cancel()
+				resp, err := clients[pair.source].MachineClient.InspectMachine(
+					clients[pair.source].ProxySingleMachineContext(probeCtx, target.ID),
+					nil,
+				)
+				if err != nil {
+					errs[i] = fmt.Errorf("reach machine '%s' from '%s': %w", target.Name, source.Name, err)
+					return
+				}
+				if len(resp.Machines) != 1 || resp.Machines[0].Machine == nil ||
+					resp.Machines[0].Machine.Id != target.ID {
+					errs[i] = fmt.Errorf("machine '%s' returned an unexpected response when reached from '%s'",
+						target.Name, source.Name)
+				}
+			})
+		}
+		wg.Wait()
+
+		return errors.Join(errs...)
+	}
+	if err := backoff.Retry(checkMeshReady, boff); err != nil {
+		return fmt.Errorf("wait for cluster WireGuard mesh to be ready: %w", err)
+	}
+
+	return nil
+}
+
 func (p *Provisioner) ListClusters(ctx context.Context) ([]Cluster, error) {
 	nets, err := p.dockerCli.NetworkList(ctx, network.ListOptions{
 		Filters: filters.NewArgs(

pkg/api/caddy.go

@@ -1,6 +1,18 @@
 package api
 
-import "strings"
+import (
+	"strings"
+	"time"
+)
+
+// CaddyConfig is the saved Caddy configuration on a machine.
+type CaddyConfig struct {
+	Caddyfile string
+	// ModifiedAt is zero when the server does not supply a modification timestamp.
+	ModifiedAt time.Time
+	// LastReconciliationError describes the latest unsuccessful configuration reconciliation.
+	LastReconciliationError string
+}
 
 // CaddySpec is the Caddy reverse proxy configuration for a service.
 type CaddySpec struct {

pkg/api/caddy_certificate.go

@@ -0,0 +1,111 @@
+package api
+
+import (
+	"crypto/sha256"
+	"crypto/x509"
+	"encoding/json"
+	"encoding/pem"
+	"fmt"
+	"strings"
+
+	"github.com/mholt/acmez/v3/acme"
+	"github.com/psviderski/uncloud/api/pb"
+)
+
+// IssuedCertificate describes a certificate in Caddy's managed certificate storage.
+// It does not indicate whether Caddy currently serves the certificate or whether it is trusted.
+type IssuedCertificate struct {
+	// SAN is the Subject Alternative Name (SAN) of the certificate.
+	// Caddy doesn't issue certificates with multiple SANs.
+	SAN string
+	// Chain contains the parsed certificates in stored order, with the leaf first.
+	Chain []*x509.Certificate
+	// IssuerData is extra information associated with the certificate, usually provided by the issuer implementation.
+	IssuerData CertificateIssuerData
+}
+
+// Fingerprint returns the SHA-256 fingerprint of the leaf certificate.
+func (c IssuedCertificate) Fingerprint() [sha256.Size]byte {
+	return sha256.Sum256(c.Chain[0].Raw)
+}
+
+// CertificateIssuerData preserves issuer-specific metadata and provides a best-effort typed view of ACME records.
+type CertificateIssuerData struct {
+	// Raw is the original issuer_data JSON, including unrecognized formats and fields.
+	Raw json.RawMessage
+	// ACME is populated when the metadata can be decoded as an ACME record with CA and certificate URLs.
+	// It is nil for absent, unrecognized, or malformed metadata.
+	ACME *ACMEIssuerData
+}
+
+// ACMEIssuerData identifies the ACME resources used to issue a certificate.
+type ACMEIssuerData struct {
+	// URL is the certificate resource URL as provisioned by the ACME server.
+	URL string
+	// CA is the directory URL of the ACME CA that issued this certificate.
+	CA string
+	// Account is the URL of the account that obtained the certificate.
+	Account string
+	// RenewalInfo is the stored renewal guidance, not a guarantee of when renewal will run.
+	RenewalInfo *acme.RenewalInfo
+}
+
+// IssuedCertificateFromProto parses a stored certificate chain without verifying trust or expiry.
+// Issuer metadata is decoded as ACME on a best-effort basis and is always preserved in its raw form.
+func IssuedCertificateFromProto(p *pb.IssuedCertificate) (IssuedCertificate, error) {
+	if p == nil || strings.TrimSpace(p.San) == "" {
+		return IssuedCertificate{}, fmt.Errorf("invalid certificate: missing SAN")
+	}
+	chain, err := parseCertificateChain(p.Chain)
+	if err != nil {
+		return IssuedCertificate{}, fmt.Errorf("parse certificate '%s': %w", p.San, err)
+	}
+	return IssuedCertificate{
+		SAN:        p.San,
+		Chain:      chain,
+		IssuerData: parseCertificateIssuerData(p.IssuerData),
+	}, nil
+}
+
+func parseCertificateChain(data []byte) ([]*x509.Certificate, error) {
+	var chain []*x509.Certificate
+	for len(data) > 0 {
+		var block *pem.Block
+		block, data = pem.Decode(data)
+		if block == nil {
+			break
+		}
+		if block.Type != "CERTIFICATE" {
+			return nil, fmt.Errorf("unexpected PEM block type '%s'", block.Type)
+		}
+
+		cert, err := x509.ParseCertificate(block.Bytes)
+		if err != nil {
+			return nil, fmt.Errorf("parse X.509 certificate: %w", err)
+		}
+		chain = append(chain, cert)
+	}
+
+	if len(chain) == 0 {
+		return nil, fmt.Errorf("empty certificate chain")
+	}
+
+	return chain, nil
+}
+
+func parseCertificateIssuerData(raw json.RawMessage) CertificateIssuerData {
+	data := CertificateIssuerData{Raw: raw}
+	// Recognize ACME by its resource URLs and decodable metadata.
+	// Unknown formats and malformed records remain raw-only.
+	var cert acme.Certificate
+	if err := json.Unmarshal(raw, &cert); err != nil || cert.CA == "" || cert.URL == "" {
+		return data
+	}
+	data.ACME = &ACMEIssuerData{
+		URL:         cert.URL,
+		CA:          cert.CA,
+		Account:     cert.Account,
+		RenewalInfo: cert.RenewalInfo,
+	}
+	return data
+}

pkg/api/caddy_certificate_test.go

@@ -0,0 +1,182 @@
+package api
+
+import (
+	"crypto/ed25519"
+	"crypto/rand"
+	"crypto/x509"
+	"encoding/hex"
+	"encoding/pem"
+	"math/big"
+	"testing"
+	"time"
+
+	"github.com/mholt/acmez/v3/acme"
+	"github.com/psviderski/uncloud/api/pb"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestIssuedCertificateFromProto(t *testing.T) {
+	leaf := testCertificatePEM(t, 1)
+	issuer := testCertificatePEM(t, 2)
+	for _, tt := range []struct {
+		name    string
+		chain   []byte
+		serials []int64
+	}{
+		{name: "single certificate", chain: leaf, serials: []int64{1}},
+		{name: "certificate chain", chain: append(append([]byte(nil), leaf...), issuer...), serials: []int64{1, 2}},
+	} {
+		t.Run(tt.name, func(t *testing.T) {
+			cert, err := IssuedCertificateFromProto(&pb.IssuedCertificate{
+				San: "app.example.com", Chain: tt.chain,
+			})
+			require.NoError(t, err)
+			assert.Equal(t, "app.example.com", cert.SAN)
+			require.Len(t, cert.Chain, len(tt.serials))
+
+			for i, serial := range tt.serials {
+				assert.Equal(t, big.NewInt(serial), cert.Chain[i].SerialNumber, "chain order must be preserved")
+			}
+			assert.Equal(t, []string{"app.example.com"}, cert.Chain[0].DNSNames)
+			// Expired, self-signed certificates are parsed without verifying trust or validity.
+			assert.Equal(t, time.Date(2021, 1, 1, 0, 0, 0, 0, time.UTC), cert.Chain[0].NotAfter)
+			assert.Empty(t, cert.IssuerData)
+		})
+	}
+}
+
+func TestIssuedCertificateFingerprint(t *testing.T) {
+	cert := IssuedCertificate{Chain: []*x509.Certificate{
+		{Raw: []byte("abc")},
+		{Raw: []byte("issuer")},
+	}}
+	want, err := hex.DecodeString("ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad")
+	require.NoError(t, err)
+	fingerprint := cert.Fingerprint()
+	assert.Equal(t, want, fingerprint[:])
+}
+
+func TestIssuedCertificateFromProto_InvalidCertificate(t *testing.T) {
+	valid := testCertificatePEM(t, 1)
+	invalidDER := pem.EncodeToMemory(&pem.Block{Type: "CERTIFICATE", Bytes: []byte("invalid")})
+	for _, tt := range []struct {
+		name    string
+		input   *pb.IssuedCertificate
+		wantErr string
+	}{
+		{name: "nil input", wantErr: "missing SAN"},
+		{name: "missing SAN", input: &pb.IssuedCertificate{Chain: valid}, wantErr: "missing SAN"},
+		{name: "blank SAN", input: &pb.IssuedCertificate{San: " \t", Chain: valid}, wantErr: "missing SAN"},
+		{name: "empty chain", input: &pb.IssuedCertificate{San: "app.example.com"}, wantErr: "empty certificate chain"},
+		{
+			name: "invalid PEM", input: &pb.IssuedCertificate{San: "app.example.com", Chain: []byte("not PEM")},
+			wantErr: "empty certificate chain",
+		},
+		{
+			name: "wrong PEM block type", input: &pb.IssuedCertificate{
+				San:   "app.example.com",
+				Chain: pem.EncodeToMemory(&pem.Block{Type: "PUBLIC KEY", Bytes: []byte("key")}),
+			},
+			wantErr: "unexpected PEM block type",
+		},
+		{
+			name: "invalid DER", input: &pb.IssuedCertificate{San: "app.example.com", Chain: invalidDER},
+			wantErr: "parse X.509 certificate",
+		},
+		{name: "invalid certificate after valid leaf", input: &pb.IssuedCertificate{
+			San:   "app.example.com",
+			Chain: append(append([]byte(nil), valid...), invalidDER...),
+		}, wantErr: "parse X.509 certificate"},
+	} {
+		t.Run(tt.name, func(t *testing.T) {
+			cert, err := IssuedCertificateFromProto(tt.input)
+			require.ErrorContains(t, err, tt.wantErr)
+			assert.Empty(t, cert)
+		})
+	}
+}
+
+func TestIssuedCertificateFromProto_IssuerData(t *testing.T) {
+	chain := testCertificatePEM(t, 1)
+	retryAfter := time.Date(2029, 12, 1, 0, 0, 0, 0, time.UTC)
+	renewalInfo := &acme.RenewalInfo{
+		ExplanationURL:   "https://ca.example/why",
+		UniqueIdentifier: "aki.serial",
+		RetryAfter:       &retryAfter,
+		SelectedTime:     time.Date(2030, 1, 2, 0, 0, 0, 0, time.UTC),
+	}
+	renewalInfo.SuggestedWindow.Start = time.Date(2030, 1, 1, 0, 0, 0, 0, time.UTC)
+	renewalInfo.SuggestedWindow.End = time.Date(2030, 1, 3, 0, 0, 0, 0, time.UTC)
+
+	for _, tt := range []struct {
+		name string
+		raw  string
+		want *ACMEIssuerData
+	}{
+		{
+			name: "ACME",
+			raw:  `{"url":"https://ca.example/cert/1","ca":"https://ca.example/directory","account":"https://ca.example/acct/1","future_field":true}`,
+			want: &ACMEIssuerData{
+				URL: "https://ca.example/cert/1", CA: "https://ca.example/directory", Account: "https://ca.example/acct/1",
+			},
+		},
+		{
+			name: "ACME with renewal information",
+			raw: `{
+				"url": "https://ca.example/cert/1",
+				"ca": "https://ca.example/directory",
+				"account": "https://ca.example/acct/1",
+				"renewal_info": {
+					"suggestedWindow": {"start": "2030-01-01T00:00:00Z", "end": "2030-01-03T00:00:00Z"},
+					"explanationURL": "https://ca.example/why",
+					"_uniqueIdentifier": "aki.serial",
+					"_retryAfter": "2029-12-01T00:00:00Z",
+					"_selectedTime": "2030-01-02T00:00:00Z"
+				}
+			}`,
+			want: &ACMEIssuerData{
+				URL: "https://ca.example/cert/1", CA: "https://ca.example/directory",
+				Account: "https://ca.example/acct/1", RenewalInfo: renewalInfo,
+			},
+		},
+		{name: "absent"},
+		{name: "null", raw: "null"},
+		{name: "unknown issuer", raw: `{"id":"provider-id","status":"issued"}`},
+		{name: "non-object JSON", raw: `"provider-record"`},
+		{name: "missing CA", raw: `{"url":"https://ca.example/cert/1"}`},
+		{name: "missing certificate URL", raw: `{"ca":"https://ca.example/directory"}`},
+		{name: "invalid JSON", raw: "{"},
+		{name: "invalid field types", raw: `{"url":123,"ca":false}`},
+		{
+			name: "malformed renewal information",
+			raw:  `{"url":"https://ca.example/cert/1","ca":"https://ca.example/directory","renewal_info":{"_selectedTime":"invalid"}}`,
+		},
+	} {
+		t.Run(tt.name, func(t *testing.T) {
+			cert, err := IssuedCertificateFromProto(&pb.IssuedCertificate{
+				San: "app.example.com", Chain: chain, IssuerData: []byte(tt.raw),
+			})
+			require.NoError(t, err, "issuer metadata must not prevent certificate parsing")
+			require.Len(t, cert.Chain, 1)
+			assert.Equal(t, tt.raw, string(cert.IssuerData.Raw), "preserve original JSON including unknown fields")
+			assert.Equal(t, tt.want, cert.IssuerData.ACME)
+		})
+	}
+}
+
+// testCertificatePEM creates an expired, self-signed certificate for parsing tests.
+func testCertificatePEM(t *testing.T, serial int64) []byte {
+	t.Helper()
+	public, private, err := ed25519.GenerateKey(rand.Reader)
+	require.NoError(t, err)
+	template := &x509.Certificate{
+		SerialNumber: big.NewInt(serial),
+		DNSNames:     []string{"app.example.com"},
+		NotBefore:    time.Date(2020, 1, 1, 0, 0, 0, 0, time.UTC),
+		NotAfter:     time.Date(2021, 1, 1, 0, 0, 0, 0, time.UTC),
+	}
+	der, err := x509.CreateCertificate(rand.Reader, template, template, public, private)
+	require.NoError(t, err)
+	return pem.EncodeToMemory(&pem.Block{Type: "CERTIFICATE", Bytes: der})
+}

pkg/api/client.go

@@ -36,7 +36,7 @@ type ContainerClient interface {
 }
 
 type DNSClient interface {
-	GetDomain(ctx context.Context) (string, error)
+	GetDomain(ctx context.Context) (ClusterDomain, error)
 }
 
 type ImageClient interface {

pkg/api/dns.go

@@ -0,0 +1,8 @@
+package api
+
+// ClusterDomain is the domain name assigned to the cluster.
+type ClusterDomain struct {
+	Name string
+	// Reserved reports whether the domain is reserved in Uncloud DNS or set and managed externally.
+	Reserved bool
+}

pkg/api/runtime_template.go

@@ -0,0 +1,90 @@
+package api
+
+import (
+	"bytes"
+	"fmt"
+	"text/template"
+)
+
+// RuntimeTemplateContext contains the data available to runtime templates in a service spec.
+type RuntimeTemplateContext struct {
+	Container RuntimeTemplateContainerContext
+}
+
+// RuntimeTemplateContainerContext contains container data available to runtime templates in a service spec.
+type RuntimeTemplateContainerContext struct {
+	Name string
+}
+
+// RenderRuntimeTemplates returns a copy of the service spec with supported runtime template expressions rendered
+// using metadata from ctx. Runtime templates use Go template expressions such as {{.Container.Name}} and are supported
+// in bind volume host paths and volume mount container paths. The original service spec is not modified.
+func (s *ServiceSpec) RenderRuntimeTemplates(ctx RuntimeTemplateContext) (ServiceSpec, error) {
+	if ctx.Container.Name == "" {
+		return ServiceSpec{}, fmt.Errorf("container name must not be empty")
+	}
+
+	spec := s.Clone()
+
+	for i := range spec.Volumes {
+		volume := &spec.Volumes[i]
+		if volume.Type != VolumeTypeBind {
+			continue
+		}
+		if err := volume.Validate(); err != nil {
+			return ServiceSpec{}, fmt.Errorf("invalid bind volume '%s': %w", volume.Name, err)
+		}
+
+		hostPath, err := renderRuntimeTemplate(volume.BindOptions.HostPath, ctx)
+		if err != nil {
+			return ServiceSpec{}, fmt.Errorf("render runtime template in bind volume '%s' host path: %w",
+				volume.Name, err)
+		}
+		volume.BindOptions.HostPath = hostPath
+
+		if err = volume.Validate(); err != nil {
+			return ServiceSpec{}, fmt.Errorf("invalid rendered bind volume '%s': %w", volume.Name, err)
+		}
+	}
+
+	for i := range spec.Container.VolumeMounts {
+		volumeMount := &spec.Container.VolumeMounts[i]
+		if err := volumeMount.Validate(); err != nil {
+			return ServiceSpec{}, fmt.Errorf("invalid volume mount '%s': %w", volumeMount.VolumeName, err)
+		}
+
+		containerPath, err := renderRuntimeTemplate(volumeMount.ContainerPath, ctx)
+		if err != nil {
+			return ServiceSpec{}, fmt.Errorf(
+				"render runtime template in volume '%s' container path: %w", volumeMount.VolumeName, err)
+		}
+		volumeMount.ContainerPath = containerPath
+
+		if err = volumeMount.Validate(); err != nil {
+			return ServiceSpec{}, fmt.Errorf("invalid rendered volume mount '%s': %w", volumeMount.VolumeName, err)
+		}
+	}
+
+	return spec, nil
+}
+
+func renderRuntimeTemplate(value string, ctx RuntimeTemplateContext) (string, error) {
+	tmpl, err := template.New("runtime template").Option("missingkey=error").Parse(value)
+	if err != nil {
+		return "", fmt.Errorf("parse runtime template: %w", err)
+	}
+
+	var rendered bytes.Buffer
+	if err = tmpl.Execute(&rendered, ctx); err != nil {
+		return "", fmt.Errorf("execute runtime template: %w", err)
+	}
+
+	return rendered.String(), nil
+}
+
+func validateRuntimeTemplates(spec *ServiceSpec) error {
+	_, err := spec.RenderRuntimeTemplates(RuntimeTemplateContext{
+		Container: RuntimeTemplateContainerContext{Name: "validation-container-name"},
+	})
+	return err
+}

pkg/api/runtime_template_test.go

@@ -0,0 +1,225 @@
+package api
+
+import (
+	"testing"
+
+	"github.com/docker/docker/api/types/mount"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestServiceSpec_RenderRuntimeTemplates(t *testing.T) {
+	t.Parallel()
+
+	spec := ServiceSpec{
+		Container: ContainerSpec{
+			Image: "busybox:latest",
+			Env: EnvVars{
+				"UNCHANGED": "{{.Container.Name}}",
+			},
+			VolumeMounts: []VolumeMount{
+				{VolumeName: "config", ContainerPath: "/etc/app/{{.Container.Name}}", ReadOnly: true},
+				{VolumeName: "data", ContainerPath: "/{{.Container.Name}}"},
+				{VolumeName: "scratch", ContainerPath: "/tmp/{{.Container.Name}}"},
+			},
+			Volumes: []string{"/legacy/{{.Container.Name}}:/legacy"},
+		},
+		Volumes: []VolumeSpec{
+			{
+				Name: "config",
+				Type: VolumeTypeBind,
+				BindOptions: &BindOptions{
+					HostPath:       "/var/lib/uncloud/{{.Container.Name}}",
+					CreateHostPath: true,
+					Propagation:    mount.PropagationRShared,
+				},
+			},
+			{
+				Name: "data",
+				Type: VolumeTypeVolume,
+				VolumeOptions: &VolumeOptions{
+					Name: "data-{{.Container.Name}}",
+				},
+			},
+			{Name: "scratch", Type: VolumeTypeTmpfs},
+		},
+	}
+	original := spec.Clone()
+
+	rendered, err := spec.RenderRuntimeTemplates(RuntimeTemplateContext{
+		Container: RuntimeTemplateContainerContext{Name: "web-a1b2"},
+	})
+	require.NoError(t, err)
+
+	assert.Equal(t, "/var/lib/uncloud/web-a1b2", rendered.Volumes[0].BindOptions.HostPath)
+	assert.True(t, rendered.Volumes[0].BindOptions.CreateHostPath)
+	assert.Equal(t, mount.PropagationRShared, rendered.Volumes[0].BindOptions.Propagation)
+	assert.Equal(t, "data-{{.Container.Name}}", rendered.Volumes[1].VolumeOptions.Name)
+	assert.Equal(t, "/etc/app/web-a1b2", rendered.Container.VolumeMounts[0].ContainerPath)
+	assert.Equal(t, "/web-a1b2", rendered.Container.VolumeMounts[1].ContainerPath)
+	assert.Equal(t, "/tmp/web-a1b2", rendered.Container.VolumeMounts[2].ContainerPath)
+	assert.Equal(t, "{{.Container.Name}}", rendered.Container.Env["UNCHANGED"])
+	assert.Equal(t, "/legacy/{{.Container.Name}}:/legacy", rendered.Container.Volumes[0])
+	assert.Equal(t, original, spec)
+}
+
+func TestServiceSpec_RenderRuntimeTemplates_GoTemplateLanguage(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		name            string
+		runtimeTemplate string
+		containerName   string
+		want            string
+	}{
+		{
+			name:            "condition variables and pipeline",
+			runtimeTemplate: `/data/{{if .Container.Name}}{{$name := .Container.Name}}{{$name | printf "%s"}}{{end}}`,
+			containerName:   "web-a1b2",
+			want:            "/data/web-a1b2",
+		},
+		{
+			name:            "literal delimiters",
+			runtimeTemplate: `/data/{{"{{"}}.Container.Name{{"}}"}}`,
+			containerName:   "web-a1b2",
+			want:            "/data/{{.Container.Name}}",
+		},
+		{
+			name:            "one pass",
+			runtimeTemplate: "/data/{{.Container.Name}}",
+			containerName:   "{{.Container.Name}}",
+			want:            "/data/{{.Container.Name}}",
+		},
+		{
+			name:            "static path",
+			runtimeTemplate: "/data/static",
+			containerName:   "web-a1b2",
+			want:            "/data/static",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			t.Parallel()
+
+			spec := serviceSpecWithBindRuntimeTemplate(tt.runtimeTemplate)
+			rendered, err := spec.RenderRuntimeTemplates(RuntimeTemplateContext{
+				Container: RuntimeTemplateContainerContext{Name: tt.containerName},
+			})
+			require.NoError(t, err)
+			assert.Equal(t, tt.want, rendered.Volumes[0].BindOptions.HostPath)
+		})
+	}
+}
+
+func TestServiceSpec_RenderRuntimeTemplates_Errors(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		name            string
+		runtimeTemplate string
+		containerName   string
+		wantErr         string
+	}{
+		{
+			name:            "empty container name",
+			runtimeTemplate: "/data/{{.Container.Name}}",
+			containerName:   "",
+			wantErr:         "container name must not be empty",
+		},
+		{
+			name:            "malformed runtime template",
+			runtimeTemplate: "/data/{{.Container.Name",
+			containerName:   "web-a1b2",
+			wantErr:         "parse runtime template",
+		},
+		{
+			name:            "unknown field",
+			runtimeTemplate: "/data/{{.Container.ID}}",
+			containerName:   "web-a1b2",
+			wantErr:         "can't evaluate field ID",
+		},
+		{
+			name:            "unregistered function",
+			runtimeTemplate: `/data/{{env "HOME"}}`,
+			containerName:   "web-a1b2",
+			wantErr:         `function "env" not defined`,
+		},
+		{
+			name:            "relative rendered path",
+			runtimeTemplate: "{{.Container.Name}}",
+			containerName:   "web-a1b2",
+			wantErr:         "must be an absolute path",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			t.Parallel()
+
+			spec := serviceSpecWithBindRuntimeTemplate(tt.runtimeTemplate)
+			_, err := spec.RenderRuntimeTemplates(RuntimeTemplateContext{
+				Container: RuntimeTemplateContainerContext{Name: tt.containerName},
+			})
+			require.ErrorContains(t, err, tt.wantErr)
+		})
+	}
+}
+
+func TestServiceSpec_Validate_RuntimeTemplates(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		name            string
+		runtimeTemplate string
+		wantErr         string
+	}{
+		{
+			name:            "valid",
+			runtimeTemplate: "/data/{{.Container.Name}}",
+		},
+		{
+			name:            "malformed",
+			runtimeTemplate: "/data/{{.Container.Name",
+			wantErr:         "validate runtime templates",
+		},
+		{
+			name:            "unknown field",
+			runtimeTemplate: "/data/{{.Container.ID}}",
+			wantErr:         "can't evaluate field ID",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			t.Parallel()
+
+			spec := serviceSpecWithBindRuntimeTemplate(tt.runtimeTemplate)
+			err := spec.Validate()
+			if tt.wantErr == "" {
+				require.NoError(t, err)
+			} else {
+				require.ErrorContains(t, err, tt.wantErr)
+			}
+		})
+	}
+}
+
+func serviceSpecWithBindRuntimeTemplate(hostPath string) ServiceSpec {
+	return ServiceSpec{
+		Name: "web",
+		Container: ContainerSpec{
+			Image: "busybox:latest",
+			VolumeMounts: []VolumeMount{
+				{VolumeName: "data", ContainerPath: "/data"},
+			},
+		},
+		Volumes: []VolumeSpec{
+			{
+				Name:        "data",
+				Type:        VolumeTypeBind,
+				BindOptions: &BindOptions{HostPath: hostPath},
+			},
+		},
+	}
+}

pkg/api/service.go

@@ -214,6 +214,10 @@ func (s *ServiceSpec) Validate() error {
 		}
 	}
 
+	if err := validateRuntimeTemplates(s); err != nil {
+		return fmt.Errorf("validate runtime templates: %w", err)
+	}
+
 	return nil
 }
 

pkg/api/store.go

@@ -0,0 +1,14 @@
+package api
+
+// StoreVersion records the highest processed database version for each Corrosion actor UUID.
+// A version can include changes that were superseded, so it does not guarantee that all data
+// through that version is available locally.
+type StoreVersion map[string]uint64
+
+// MergeMax keeps the highest observed version for each actor in other.
+// The receiver must be initialised before calling MergeMax.
+func (v StoreVersion) MergeMax(other StoreVersion) {
+	for actor, version := range other {
+		v[actor] = max(v[actor], version)
+	}
+}

pkg/api/volume.go

@@ -3,10 +3,10 @@ package api
 import (
 	"fmt"
 	"maps"
+	"path"
 	"reflect"
 	"slices"
 	"sort"
-	"strings"
 
 	"github.com/docker/docker/api/types/mount"
 	"github.com/docker/docker/api/types/volume"
@@ -39,7 +39,8 @@ type VolumeSpec struct {
 
 // BindOptions represents options for a bind volume.
 type BindOptions struct {
-	// HostPath is the absolute path on the host filesystem.
+	// HostPath is the absolute path on the host filesystem. It may contain runtime templates such as
+	// {{.Container.Name}}, which the destination daemon renders before creating the container.
 	HostPath string
 	// CreateHostPath indicates whether the host path should be created if it doesn't exist.
 	// If false, deployment will fail if the path doesn't exist.
@@ -103,6 +104,9 @@ func (v *VolumeSpec) Validate() error {
 		if v.BindOptions == nil {
 			return fmt.Errorf("bind volume must have bind options")
 		}
+		if !path.IsAbs(v.BindOptions.HostPath) {
+			return fmt.Errorf("invalid host path: %q must be an absolute path", v.BindOptions.HostPath)
+		}
 	case VolumeTypeVolume, VolumeTypeTmpfs:
 	default:
 		return fmt.Errorf("invalid volume type: '%s', must be one of '%s', '%s', '%s')",
@@ -196,7 +200,8 @@ func (v *VolumeSpec) Clone() VolumeSpec {
 type VolumeMount struct {
 	// VolumeName references a volume defined in ServiceSpec.Volumes by its Name field.
 	VolumeName string
-	// ContainerPath is the absolute path where the volume is mounted in the container.
+	// ContainerPath is the absolute path where the volume is mounted in the container. It may contain runtime templates
+	// such as {{.Container.Name}}, which the destination daemon renders before creating the container.
 	ContainerPath string
 	// ReadOnly indicates whether the volume should be mounted read-only.
 	// If false (default), the volume is mounted read-write.
@@ -207,9 +212,8 @@ func (m *VolumeMount) Validate() error {
 	if m.VolumeName == "" {
 		return fmt.Errorf("volume name must not be empty")
 	}
-
-	if !strings.HasPrefix(m.ContainerPath, "/") {
-		return fmt.Errorf("invalid container path: '%s', must be an absolute path in the container", m.ContainerPath)
+	if !path.IsAbs(m.ContainerPath) {
+		return fmt.Errorf("invalid container path: %q must be an absolute path", m.ContainerPath)
 	}
 
 	return nil

pkg/client/caddy.go

@@ -1,15 +1,19 @@
 package client
 
 import (
+	"context"
 	"fmt"
 	"regexp"
+	"time"
 
 	"github.com/Masterminds/semver"
 	"github.com/distribution/reference"
 	"github.com/google/go-containerregistry/pkg/name"
 	"github.com/google/go-containerregistry/pkg/v1/remote"
+	"github.com/psviderski/uncloud/api/pb"
 	"github.com/psviderski/uncloud/pkg/api"
 	"github.com/psviderski/uncloud/pkg/client/deploy"
+	"google.golang.org/protobuf/types/known/emptypb"
 )
 
 const (
@@ -20,12 +24,66 @@ const (
 
 var caddyImageTagRegex = regexp.MustCompile(`^2\.\d+\.\d+$`)
 
-// NewCaddyDeployment creates a new deployment for a Caddy reverse proxy service.
+// CaddyClient provides Caddy operations over its parent Client's connection.
+// The parent client owns the connection and must be used to close it.
+type CaddyClient struct {
+	// Storage provides low-level access to Caddy's cluster-backed storage.
+	Storage pb.CaddyStorageClient
+	grpc    pb.CaddyClient
+	client  *Client
+}
+
+// CaddyConfigOptions controls which machine's saved Caddy configuration is retrieved.
+type CaddyConfigOptions struct {
+	// Machine is the machine name or ID. If empty, the configuration is retrieved from the machine the client
+	// is connected to.
+	Machine string
+}
+
+// Config retrieves the saved Caddy configuration from the machine selected by opts.
+func (c *CaddyClient) Config(ctx context.Context, opts CaddyConfigOptions) (api.CaddyConfig, error) {
+	if opts.Machine != "" {
+		ctx = ProxySingleMachineContext(ctx, opts.Machine)
+	}
+
+	resp, err := c.grpc.GetConfig(ctx, &emptypb.Empty{})
+	if err != nil {
+		return api.CaddyConfig{}, fmt.Errorf("get Caddy config: %w", err)
+	}
+	config := api.CaddyConfig{
+		Caddyfile:               resp.Caddyfile,
+		LastReconciliationError: resp.LastReconciliationError,
+	}
+	if resp.ModifiedAt != nil {
+		if err := resp.ModifiedAt.CheckValid(); err != nil {
+			return api.CaddyConfig{}, fmt.Errorf("invalid Caddy config modification timestamp: %w", err)
+		}
+		config.ModifiedAt = resp.ModifiedAt.AsTime()
+	}
+
+	return config, nil
+}
+
+// CaddyDeploymentOptions configures a Caddy reverse proxy deployment.
+type CaddyDeploymentOptions struct {
+	// Image defaults to the latest stable 2.x.x official Caddy image.
+	// Custom images must include curl and start Caddy with /etc/caddy/Caddyfile.
+	Image string
+	// Config contains an optional global Caddyfile.
+	Config    string
+	Placement api.Placement
+}
+
+// NewDeployment creates a new deployment for a Caddy reverse proxy service.
 // The service is deployed in global mode to all machines in the cluster. If the image is not provided, the latest
 // version of the official Caddy Docker image is used.
-func (cli *Client) NewCaddyDeployment(image, config string, placement api.Placement) (*deploy.Deployment, error) {
+func (c *CaddyClient) NewDeployment(ctx context.Context, opts CaddyDeploymentOptions) (*deploy.Deployment, error) {
+	if err := ctx.Err(); err != nil {
+		return nil, err
+	}
+	image := opts.Image
 	if image == "" {
-		latest, err := LatestCaddyImage()
+		latest, err := latestCaddyImage(ctx)
 		if err != nil {
 			return nil, fmt.Errorf("look up latest Caddy image: %w", err)
 		}
@@ -35,17 +93,32 @@ func (cli *Client) NewCaddyDeployment(image, config string, placement api.Placem
 
 	spec := api.ServiceSpec{
 		Container: api.ContainerSpec{
-			Command: []string{"caddy", "run", "-c", "/config/Caddyfile"},
 			Env: map[string]string{
 				"CADDY_ADMIN": "unix//run/caddy/admin.sock",
 			},
+			Healthcheck: &api.HealthcheckSpec{
+				Test: []string{
+					"CMD",
+					"curl", "-fsS",
+					"-o", "/dev/null",
+					"--unix-socket", "/run/caddy/admin.sock",
+					"http://localhost/config/",
+				},
+				Interval:      30 * time.Second,
+				Timeout:       5 * time.Second,
+				Retries:       3,
+				StartPeriod:   10 * time.Second,
+				StartInterval: 1 * time.Second,
+			},
 			Image: image,
 			VolumeMounts: []api.VolumeMount{
 				{
 					VolumeName:    "data",
-					ContainerPath: "/config",
+					ContainerPath: "/etc/caddy",
+					ReadOnly:      true,
 				},
 				{
+					// Keep local TLS assets persistent while Caddy uses the default file system storage.
 					VolumeName:    "data",
 					ContainerPath: "/data",
 				},
@@ -53,11 +126,16 @@ func (cli *Client) NewCaddyDeployment(image, config string, placement api.Placem
 					VolumeName:    "run",
 					ContainerPath: "/run/caddy",
 				},
+				{
+					VolumeName:    "uncloud-api",
+					ContainerPath: "/run/uncloud/api",
+					ReadOnly:      true,
+				},
 			},
 		},
 		Mode:      api.ServiceModeGlobal,
 		Name:      CaddyServiceName,
-		Placement: placement,
+		Placement: opts.Placement,
 		Ports: []api.PortSpec{
 			{
 				PublishedPort: 80,
@@ -95,31 +173,57 @@ func (cli *Client) NewCaddyDeployment(image, config string, placement api.Placem
 					CreateHostPath: true,
 				},
 			},
+			// Bind the Uncloud API socket so caddy.storage.uncloud module can use it to store assets in the cluster.
+			{
+				Name: "uncloud-api",
+				Type: api.VolumeTypeBind,
+				BindOptions: &api.BindOptions{
+					// Mount the parent directory that contains the socket so it lets the container see a replacement
+					// socket after the Uncloud daemon restarts (in case it doesn't use a systemd-activated socket).
+					HostPath: "/run/uncloud/api",
+				},
+			},
 		},
 	}
 
-	if config != "" {
+	if opts.Config != "" {
 		spec.Caddy = &api.CaddySpec{
-			Config: config,
+			Config: opts.Config,
 		}
 	}
 
-	return cli.NewDeployment(spec, nil), nil
+	return c.client.NewDeployment(spec, nil), nil
 }
 
-// LatestCaddyImage returns the latest image of the official Caddy Docker image on Docker Hub.
+// latestCaddyImage returns the latest image of the official Caddy Docker image on Docker Hub.
 // The latest image is determined by the latest version tag 2.x.x.
-func LatestCaddyImage() (reference.NamedTagged, error) {
+func latestCaddyImage(ctx context.Context) (reference.NamedTagged, error) {
+	if err := ctx.Err(); err != nil {
+		return nil, err
+	}
 	repo, err := name.NewRepository(CaddyImage)
 	if err != nil {
 		return nil, fmt.Errorf("parse image: %w", err)
 	}
-	tags, err := remote.List(repo)
+	tags, err := remote.List(repo, remote.WithContext(ctx))
 	if err != nil {
 		return nil, fmt.Errorf("list image tags: %w", err)
 	}
 
-	// Default to the 'latest' tag but try to find the latest version tag 2.x.x.
+	image, err := reference.ParseDockerRef(CaddyImage)
+	if err != nil {
+		return nil, fmt.Errorf("parse image: %w", err)
+	}
+	imageWithTag, err := reference.WithTag(image, latestCaddyTag(tags))
+	if err != nil {
+		return nil, fmt.Errorf("set image tag: %w", err)
+	}
+
+	return imageWithTag, nil
+}
+
+// latestCaddyTag selects the newest stable 2.x.x tag, falling back to latest.
+func latestCaddyTag(tags []string) string {
 	latestTag := "latest"
 	var latestVersion *semver.Version
 	for _, t := range tags {
@@ -137,14 +241,5 @@ func LatestCaddyImage() (reference.NamedTagged, error) {
 		}
 	}
 
-	image, err := reference.ParseDockerRef(CaddyImage)
-	if err != nil {
-		return nil, fmt.Errorf("parse image: %w", err)
-	}
-	imageWithTag, err := reference.WithTag(image, latestTag)
-	if err != nil {
-		return nil, fmt.Errorf("set image tag: %w", err)
-	}
-
-	return imageWithTag, nil
+	return latestTag
 }

pkg/client/caddy_certificate.go

@@ -0,0 +1,44 @@
+package client
+
+import (
+	"context"
+	"errors"
+
+	"github.com/psviderski/uncloud/pkg/api"
+	"google.golang.org/protobuf/types/known/emptypb"
+)
+
+// CaddyListCertificatesOptions controls which machine's certificate storage replica is queried.
+type CaddyListCertificatesOptions struct {
+	// Machine is the machine name or ID. If empty, the machine the client is connected to is used.
+	Machine string
+}
+
+// ListCertificates lists issued certificates from the Caddy's managed certificate storage backed by the distributed
+// cluster store. It doesn't verify trust or whether Caddy serves them and may include expired certificates.
+// Private key assets are never read or returned.
+//
+// This is a non-atomic inventory of one store replica. It does not wait for replication.
+// It returns parsing errors as a combined error, but still returns successfully read certificates regardless
+// of errors.
+func (c *CaddyClient) ListCertificates(ctx context.Context, opts CaddyListCertificatesOptions) ([]api.IssuedCertificate, error) {
+	if opts.Machine != "" {
+		ctx = ProxySingleMachineContext(ctx, opts.Machine)
+	}
+	resp, err := c.Storage.ListCertificates(ctx, &emptypb.Empty{})
+	if err != nil {
+		return nil, err
+	}
+
+	var certs []api.IssuedCertificate
+	var errs []error
+	for _, p := range resp.Certificates {
+		if cert, err := api.IssuedCertificateFromProto(p); err != nil {
+			errs = append(errs, err)
+		} else {
+			certs = append(certs, cert)
+		}
+	}
+
+	return certs, errors.Join(errs...)
+}

pkg/client/caddy_test.go

@@ -1,6 +1,7 @@
 package client
 
 import (
+	"context"
 	"testing"
 
 	"github.com/distribution/reference"
@@ -11,8 +12,29 @@ import (
 func TestLatestCaddyImage(t *testing.T) {
 	t.Parallel()
 
-	image, err := LatestCaddyImage()
+	image, err := latestCaddyImage(context.Background())
 	require.NoError(t, err)
 
 	assert.Regexp(t, `^caddy:2\.\d+\.\d+$`, reference.FamiliarString(image))
 }
+
+func TestLatestCaddyTag(t *testing.T) {
+	t.Parallel()
+
+	for _, tt := range []struct {
+		name string
+		tags []string
+		want string
+	}{
+		{name: "empty", want: "latest"},
+		{name: "semantic ordering", tags: []string{"2.9.9", "2.11.4", "2.10.0", "2.11.3"}, want: "2.11.4"},
+		{name: "ignore other versions and variants", tags: []string{
+			"latest", "1.0.0", "3.0.0", "2.12.0-rc.1", "2.12.0-alpine", "2.12", "v2.12.0", "2.11.4",
+		}, want: "2.11.4"},
+		{name: "no stable version", tags: []string{"builder", "2.12.0-beta.1"}, want: "latest"},
+	} {
+		t.Run(tt.name, func(t *testing.T) {
+			assert.Equal(t, tt.want, latestCaddyTag(tt.tags))
+		})
+	}
+}

pkg/client/client.go

@@ -25,8 +25,8 @@ type Client struct {
 	//  Methods such as Reset or Inspect are ambiguous in the context of a machine+cluster client.
 	pb.MachineClient
 	pb.ClusterClient
-	Caddy        pb.CaddyClient
-	CaddyStorage pb.CaddyStorageClient
+	// Caddy provides Caddy configuration, deployment, and certificate storage operations.
+	Caddy *CaddyClient
 	// Docker is a namespaced client for the Docker service to distinguish Uncloud-specific service container operations
 	// from generic Docker operations.
 	Docker *docker.Client
@@ -58,8 +58,11 @@ func New(ctx context.Context, connector Connector) (*Client, error) {
 
 	c.MachineClient = pb.NewMachineClient(c.conn)
 	c.ClusterClient = pb.NewClusterClient(c.conn)
-	c.Caddy = pb.NewCaddyClient(c.conn)
-	c.CaddyStorage = pb.NewCaddyStorageClient(c.conn)
+	c.Caddy = &CaddyClient{
+		Storage: pb.NewCaddyStorageClient(c.conn),
+		grpc:    pb.NewCaddyClient(c.conn),
+		client:  c,
+	}
 	c.Docker = docker.NewClient(c.conn)
 	c.leases = distlockgrpc.NewLeaseClient(c.conn)
 

pkg/client/compose/deploy.go

@@ -46,8 +46,8 @@ func NewDeploymentWithStrategy(ctx context.Context, cli Client, project *types.P
 		return nil, fmt.Errorf("get cluster domain: %w", err)
 	}
 	resolver := &deploy.ServiceSpecResolver{
-		// If the domain is not found (not reserved), an empty domain is used for the resolver.
-		ClusterDomain: domain,
+		// If no domain is configured, an empty domain is used for the resolver.
+		ClusterDomain: domain.Name,
 	}
 
 	return &Deployment{

pkg/client/compose/service_test.go

@@ -160,6 +160,10 @@ func TestServiceSpecFromCompose(t *testing.T) {
 								ContainerPath: "/host/etc/passwd",
 								ReadOnly:      true,
 							},
+							{
+								VolumeName:    "bind-cd9bef32904c6831a0cd0d49cf503078a46a0989acea375fdd3d3b43b2bfec4f",
+								ContainerPath: "/unique/host/bind",
+							},
 							{
 								VolumeName:    "data1",
 								ContainerPath: "/data1",
@@ -240,6 +244,14 @@ func TestServiceSpecFromCompose(t *testing.T) {
 								CreateHostPath: true,
 							},
 						},
+						{
+							Name: "bind-cd9bef32904c6831a0cd0d49cf503078a46a0989acea375fdd3d3b43b2bfec4f",
+							Type: "bind",
+							BindOptions: &api.BindOptions{
+								HostPath:       "/runtime/template/{{.Container.Name}}",
+								CreateHostPath: true,
+							},
+						},
 						{
 							Name: "data-external",
 							Type: api.VolumeTypeVolume,
@@ -1293,3 +1305,41 @@ services:
 		})
 	}
 }
+
+func TestServiceSpecFromCompose_RuntimeTemplates(t *testing.T) {
+	t.Setenv("UNCLOUD_TEST_TEMPLATE_ROOT", "uncloud-test")
+
+	project, err := LoadProjectFromContent(context.Background(), `
+services:
+  short:
+    image: busybox:latest
+    volumes:
+      - "/var/lib/${UNCLOUD_TEST_TEMPLATE_ROOT}/{{.Container.Name}}:/data/{{.Container.Name}}:ro"
+  long:
+    image: busybox:latest
+    volumes:
+      - type: bind
+        source: "/var/lib/${UNCLOUD_TEST_TEMPLATE_ROOT}/{{.Container.Name}}"
+        target: "/data/{{.Container.Name}}"
+        read_only: true
+        bind:
+          create_host_path: true
+`)
+	require.NoError(t, err)
+
+	shortSpec, err := ServiceSpecFromCompose(project, "short")
+	require.NoError(t, err)
+	longSpec, err := ServiceSpecFromCompose(project, "long")
+	require.NoError(t, err)
+
+	for _, spec := range []api.ServiceSpec{shortSpec, longSpec} {
+		require.Len(t, spec.Volumes, 1)
+		require.NotNil(t, spec.Volumes[0].BindOptions)
+		assert.Equal(t, "/var/lib/uncloud-test/{{.Container.Name}}", spec.Volumes[0].BindOptions.HostPath)
+		assert.True(t, spec.Volumes[0].BindOptions.CreateHostPath)
+		require.Len(t, spec.Container.VolumeMounts, 1)
+		assert.Equal(t, "/data/{{.Container.Name}}", spec.Container.VolumeMounts[0].ContainerPath)
+		assert.True(t, spec.Container.VolumeMounts[0].ReadOnly)
+		require.NoError(t, spec.Validate())
+	}
+}

pkg/client/compose/testdata/compose-full-spec.yaml

@@ -52,6 +52,7 @@ services:
     user: nginx:nginx
     volumes:
       - /etc/passwd:/host/etc/passwd:ro
+      - /runtime/template/{{.Container.Name}}:/unique/host/bind
       - data1:/data1
       - type: bind
         source: /path/on/host

pkg/client/connector/ssh.go

@@ -35,7 +35,7 @@ func (cfg *SSHConnectorConfig) Destination() string {
 	return dst
 }
 
-// SSHConnector establishes a connection to the machine API through an SSH tunnel to the machine.
+// SSHConnector establishes a connection to the Uncloud API through an SSH tunnel to the machine.
 type SSHConnector struct {
 	config SSHConnectorConfig
 	client *ssh.Client
@@ -69,7 +69,7 @@ func (c *SSHConnector) Connect(ctx context.Context) (*grpc.ClientConn, error) {
 
 	sockPath := c.config.SockPath
 	if sockPath == "" {
-		sockPath = machine.DefaultUncloudSockPath
+		sockPath = machine.DefaultClusterAPISockPath
 	}
 	conn, err := grpc.NewClient(
 		"unix://"+sockPath,
@@ -83,7 +83,7 @@ func (c *SSHConnector) Connect(ctx context.Context) (*grpc.ClientConn, error) {
 				conn, dErr := c.client.DialContext(ctx, "unix", addr)
 				if dErr != nil {
 					return nil, fmt.Errorf(
-						"connect to machine API socket '%s' through SSH tunnel (is uncloud.service running "+
+						"connect to Uncloud API socket '%s' through SSH tunnel (is uncloud.service running "+
 							"on the remote machine and does the SSH user '%s' have permissions to access the socket?):"+
 							" %w",
 						addr, c.client.User(), dErr,
@@ -94,7 +94,7 @@ func (c *SSHConnector) Connect(ctx context.Context) (*grpc.ClientConn, error) {
 		),
 	)
 	if err != nil {
-		return nil, fmt.Errorf("create machine API client: %w", err)
+		return nil, fmt.Errorf("create Uncloud API client: %w", err)
 	}
 	return conn, nil
 }

pkg/client/connector/sshcli.go

@@ -19,7 +19,7 @@ import (
 	"google.golang.org/grpc/credentials/insecure"
 )
 
-// SSHCLIConnector establishes a connection to the machine API by executing SSH CLI
+// SSHCLIConnector establishes a connection to the Uncloud API by executing SSH CLI
 // and running `uncloudd dial-stdio` on the remote machine.
 type SSHCLIConnector struct {
 	config SSHConnectorConfig
@@ -104,7 +104,7 @@ func (c *SSHCLIConnector) Connect(ctx context.Context) (*grpc.ClientConn, error)
 		}),
 	)
 	if err != nil {
-		return nil, fmt.Errorf("create machine API client: %w", err)
+		return nil, fmt.Errorf("create Uncloud API client: %w", err)
 	}
 
 	return grpcConn, nil

pkg/client/connector/tcp.go

@@ -13,7 +13,7 @@ import (
 	"google.golang.org/grpc/credentials/insecure"
 )
 
-// TCPConnector establishes a connection to the machine API through a direct TCP connection to an API endpoint.
+// TCPConnector establishes a connection to the Uncloud API through a direct TCP connection.
 type TCPConnector struct {
 	apiAddr netip.AddrPort
 }
@@ -40,7 +40,7 @@ func (c *TCPConnector) Connect(_ context.Context) (*grpc.ClientConn, error) {
 		grpc.WithStreamInterceptor(grpcversion.ClientStreamInterceptor),
 	)
 	if err != nil {
-		return nil, fmt.Errorf("create machine API client: %w", err)
+		return nil, fmt.Errorf("create Uncloud API client: %w", err)
 	}
 	return conn, nil
 }

pkg/client/connector/unix.go

@@ -10,7 +10,7 @@ import (
 	"google.golang.org/grpc/credentials/insecure"
 )
 
-// UnixConnector establishes a connection to the machine API through a unix domain socket.
+// UnixConnector establishes a connection to the Uncloud API through a Unix domain socket.
 type UnixConnector struct {
 	socketPath string
 }
@@ -31,7 +31,7 @@ func (c *UnixConnector) Connect(_ context.Context) (*grpc.ClientConn, error) {
 		grpc.WithStreamInterceptor(grpcversion.ClientStreamInterceptor),
 	)
 	if err != nil {
-		return nil, fmt.Errorf("create machine API client: %w", err)
+		return nil, fmt.Errorf("create Uncloud API client: %w", err)
 	}
 	return conn, nil
 }

pkg/client/connector/unix_test.go

@@ -0,0 +1,72 @@
+package connector
+
+import (
+	"context"
+	"net"
+	"os"
+	"path/filepath"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/require"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/health"
+	healthpb "google.golang.org/grpc/health/grpc_health_v1"
+)
+
+func TestUnixConnectorReconnectsAfterSocketReplacement(t *testing.T) {
+	// Use a custom pattern instead of t.TempDir() to create a short path for the socket on macOS
+	// because it has a 104 character limit.
+	t.TempDir()
+	dir, err := os.MkdirTemp("", "uncloud-")
+	require.NoError(t, err)
+	t.Cleanup(func() {
+		require.NoError(t, os.RemoveAll(dir))
+	})
+	socketPath := filepath.Join(dir, "uncloud.sock")
+	conn, err := NewUnixConnector(socketPath).Connect(context.Background())
+	require.NoError(t, err, "creating a gRPC channel must not require the socket to exist")
+	t.Cleanup(func() {
+		require.NoError(t, conn.Close())
+	})
+
+	client := healthpb.NewHealthClient(conn)
+	first := startHealthServer(t, socketPath)
+	requireHealthCheck(t, client)
+
+	first.Stop()
+
+	second := startHealthServer(t, socketPath)
+	t.Cleanup(second.Stop)
+	requireHealthCheck(t, client)
+}
+
+func startHealthServer(t *testing.T, socketPath string) *grpc.Server {
+	t.Helper()
+
+	listener, err := net.Listen("unix", socketPath)
+	require.NoError(t, err)
+
+	healthServer := health.NewServer()
+	healthServer.SetServingStatus("", healthpb.HealthCheckResponse_SERVING)
+	server := grpc.NewServer()
+	healthpb.RegisterHealthServer(server, healthServer)
+
+	go func() {
+		_ = server.Serve(listener)
+	}()
+
+	return server
+}
+
+func requireHealthCheck(t *testing.T, client healthpb.HealthClient) {
+	t.Helper()
+
+	require.Eventually(t, func() bool {
+		ctx, cancel := context.WithTimeout(context.Background(), time.Second)
+		defer cancel()
+
+		resp, err := client.Check(ctx, &healthpb.HealthCheckRequest{})
+		return err == nil && resp.Status == healthpb.HealthCheckResponse_SERVING
+	}, 15*time.Second, 100*time.Millisecond)
+}

pkg/client/deploy/deploy.go

@@ -306,8 +306,8 @@ func (d *Deployment) Plan(ctx context.Context) (ServicePlan, error) {
 		return ServicePlan{}, fmt.Errorf("get cluster domain: %w", err)
 	}
 	specResolver := &ServiceSpecResolver{
-		// If the domain is not found (not reserved), an empty domain is used for the resolver.
-		ClusterDomain: clusterDomain,
+		// If no domain is configured, an empty domain is used for the resolver.
+		ClusterDomain: clusterDomain.Name,
 	}
 
 	resolvedSpec, err := specResolver.Resolve(d.Spec)

pkg/client/dns.go

@@ -21,17 +21,21 @@ import (
 	"google.golang.org/grpc/status"
 )
 
-// GetDomain returns the cluster domain name or ErrNotFound if it hasn't been reserved yet.
-func (cli *Client) GetDomain(ctx context.Context) (string, error) {
+// GetDomain returns the cluster domain or api.ErrNotFound if none is configured.
+func (cli *Client) GetDomain(ctx context.Context) (api.ClusterDomain, error) {
 	domain, err := cli.ClusterClient.GetDomain(ctx, nil)
 	if err != nil {
-		if status.Convert(err).Code() == codes.NotFound {
-			return "", api.ErrNotFound
+		if status.Code(err) == codes.NotFound {
+			return api.ClusterDomain{}, api.ErrNotFound
 		}
-		return "", err
+		return api.ClusterDomain{}, err
 	}
 
-	return domain.Name, nil
+	return api.ClusterDomain{
+		Name: domain.Name,
+		// Older daemons (<0.21) omit Reserved and only support reserved domains.
+		Reserved: domain.Reserved == nil || domain.GetReserved(),
+	}, nil
 }
 
 var ErrNoReachableMachines = errors.New("no internet-reachable machines running service containers")
@@ -39,8 +43,17 @@ var ErrNoReachableMachines = errors.New("no internet-reachable machines running
 // CreateIngressRecords verifies which machines running the specified service (typically Caddy) are reachable from
 // the internet, then creates DNS records for the cluster domain pointing to those machines. It tests each machine
 // by sending HTTP requests to their public IPs. Only machines that respond correctly with their machine ID are included
-// in the resulting DNS configuration. Returns the created DNS records or an error.
+// in the resulting DNS configuration. The domain must be reserved in Uncloud DNS.
+// Returns the created DNS records or an error.
 func (cli *Client) CreateIngressRecords(ctx context.Context, serviceID string) ([]*pb.DNSRecord, error) {
+	domain, err := cli.GetDomain(ctx)
+	if err != nil {
+		return nil, fmt.Errorf("get cluster domain: %w", err)
+	}
+	if !domain.Reserved {
+		return nil, status.Error(codes.FailedPrecondition, "cluster domain is not reserved in Uncloud DNS")
+	}
+
 	svc, err := cli.InspectService(ctx, serviceID)
 	if err != nil {
 		return nil, fmt.Errorf("inspect service '%s': %w", serviceID, err)

pkg/client/machine.go

@@ -143,7 +143,7 @@ func (cli *Client) WaitClusterReady(ctx context.Context, timeout time.Duration)
 }
 
 // WaitForStoreVersion waits until the cluster store on the target machine has reached each requested actor version
-// in minVersion, with no known missing or pending transactions through those versions.
+// in minVersion, with no known missing or pending transactions through those versions from active members.
 // The context controls cancellation and the deadline. An empty minVersion requires no replication.
 // This method observes replication without initiating synchronisation.
 //
@@ -157,7 +157,7 @@ func (cli *Client) WaitClusterReady(ctx context.Context, timeout time.Duration)
 //
 // Success does not guarantee an exact snapshot or delivery of every historical value.
 // Callers that require a specific record or condition should verify it after waiting.
-func (cli *Client) WaitForStoreVersion(ctx context.Context, minVersion map[string]uint64) error {
+func (cli *Client) WaitForStoreVersion(ctx context.Context, minVersion api.StoreVersion) error {
 	_, err := cli.MachineClient.WaitForStoreVersion(ctx, &pb.WaitForStoreVersionRequest{MinVersion: minVersion})
 	return err
 }

pkg/client/service.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"maps"
 	"slices"
 	"sync"
 
@@ -320,40 +321,18 @@ func (cli *Client) StartService(ctx context.Context, id string) error {
 
 // ListServices returns a list of all services and their containers.
 func (cli *Client) ListServices(ctx context.Context) ([]api.Service, error) {
-	machines, err := cli.ListMachines(ctx, nil)
-	if err != nil {
-		return nil, fmt.Errorf("list machines: %w", err)
-	}
-
-	// Broadcast the container list request to all available machines.
-	md := metadata.New(nil)
-	for _, m := range machines {
-		if m.State == pb.MachineMember_UP || m.State == pb.MachineMember_SUSPECT {
-			md.Append("machines", m.Machine.Id)
-		} else {
-			tui.PrintWarning(fmt.Sprintf("failed to list service containers on machine '%s' (state is %s). "+
-				"The results may be incomplete.", m.Machine.Name, m.State.String()))
-		}
-	}
-	listCtx := metadata.NewOutgoingContext(ctx, md)
-
-	// List all containers including stopped ones.
+	// Broadcast the container list request to all machines in the cluster.
+	listCtx := ProxyMachinesContext(ctx, nil)
+	// List all containers including stopped ones and deployment hooks.
 	opts := container.ListOptions{All: true}
 	machineContainers, err := cli.Docker.ListServiceContainers(listCtx, "", opts)
 	if err != nil {
 		return nil, fmt.Errorf("list containers: %w", err)
 	}
 
-	// TODO: optimise by extracting services from the list of all containers instead of inspecting each service.
-	//  Most of the code can be reused in both InspectService and ListServices.
+	// Group containers by service ID using the broadcast results.
 	servicesByID := make(map[string]api.Service)
 	for _, mc := range machineContainers {
-		// NOTE: Metadata should never be nil in practice. This is legacy fallback that will be removed.
-		if mc.Metadata == nil {
-			tui.PrintWarning("metadata is missing in response from unknown server")
-			continue
-		}
-
 		if mc.Metadata.Error != "" {
 			// TODO: return failed machines in the response.
 			tui.PrintWarning(fmt.Sprintf("failed to list containers on machine '%s': %s",
@@ -362,25 +341,30 @@ func (cli *Client) ListServices(ctx context.Context) ([]api.Service, error) {
 		}
 
 		for _, ctr := range append(mc.Containers, mc.HookContainers...) {
-			if _, ok := servicesByID[ctr.ServiceID()]; ok {
-				continue
-			}
-
-			svc, err := cli.InspectService(ctx, ctr.ServiceID())
-			if err != nil {
-				if errors.Is(err, api.ErrNotFound) {
-					continue
-				}
-				return nil, fmt.Errorf("inspect service: %w", err)
-			}
-
-			servicesByID[ctr.ServiceID()] = svc
+			serviceID := ctr.ServiceID()
+			svc, ok := servicesByID[serviceID]
+			if !ok {
+				svc = api.Service{
+					ID:   serviceID,
+					Name: ctr.ServiceName(),
+					Mode: ctr.ServiceMode(),
 				}
 			}
 
-	services := make([]api.Service, 0, len(servicesByID))
-	for _, svc := range servicesByID {
-		services = append(services, svc)
+			machineContainer := api.MachineServiceContainer{
+				MachineID:   mc.Metadata.MachineId,
+				MachineName: mc.Metadata.MachineName,
+				Container:   ctr,
 			}
-	return services, nil
+			if ctr.IsHook() {
+				svc.HookContainers = append(svc.HookContainers, machineContainer)
+			} else {
+				svc.Containers = append(svc.Containers, machineContainer)
+			}
+
+			servicesByID[serviceID] = svc
+		}
+	}
+
+	return slices.Collect(maps.Values(servicesByID)), nil
 }

scripts/docker/entrypoint.sh

@@ -35,9 +35,9 @@ echo "Docker in Docker is ready."
 echo "Loading corrosion image from /images/corrosion.tar..."
 docker load < /images/corrosion.tar
 
-# Make machine API accessible from the host via port publishing.
-echo "Proxying Uncloud API port 51000/tcp to Unix socket /run/uncloud/uncloud.sock..."
-socat TCP-LISTEN:51000,reuseaddr,fork,bind="$(hostname -i)" UNIX-CONNECT:/run/uncloud/uncloud.sock &
+# Make the Uncloud API accessible from the host via port publishing.
+echo "Proxying Uncloud API port 51000/tcp to Unix socket /run/uncloud/api/uncloud.sock..."
+socat TCP-LISTEN:51000,reuseaddr,fork,bind="$(hostname -i)" UNIX-CONNECT:/run/uncloud/api/uncloud.sock &
 
 # Execute the passed command and wait for it while maintaining signal handling.
 "$@" &

scripts/install.sh

@@ -277,11 +277,33 @@ install_uncloud_binaries() {
 }
 
 install_uncloud_systemd() {
+    local uncloud_socket_path="${INSTALL_SYSTEMD_DIR}/uncloud.socket"
     local uncloud_service_path="${INSTALL_SYSTEMD_DIR}/uncloud.service"
+
+    mkdir -p "${INSTALL_SYSTEMD_DIR}"
+
+    cat > "${uncloud_socket_path}" << EOF
+[Unit]
+Description=Uncloud API socket
+Before=docker.service
+
+[Socket]
+ListenStream=/run/uncloud/api/uncloud.sock
+SocketUser=root
+SocketGroup=uncloud
+SocketMode=0660
+DirectoryMode=0750
+
+[Install]
+WantedBy=sockets.target
+EOF
+    log "✓ Systemd unit file created: ${uncloud_socket_path}"
+
     cat > "${uncloud_service_path}" << EOF
 [Unit]
 Description=Uncloud machine daemon
-After=network-online.target docker.service
+Requires=uncloud.socket
+After=network-online.target uncloud.socket docker.service
 Wants=network-online.target
 
 [Service]
@@ -306,12 +328,11 @@ WantedBy=multi-user.target
 EOF
     log "✓ Systemd unit file created: ${uncloud_service_path}"
 
-
     if [[ "${INSTALL_ONLY}" != "true" ]]; then
         # Reload systemd to recognize the new or updated unit file.
         systemctl daemon-reload
     fi
-    systemctl enable uncloud.service
+    systemctl enable uncloud.socket uncloud.service
 }
 
 start_uncloud() {

scripts/uninstall.sh

@@ -57,14 +57,17 @@ fi
 
 log "⏳ Stopping systemd services..."
 systemctl stop uncloud.service || log "uncloud.service not running or doesn't exist."
+systemctl stop uncloud.socket || log "uncloud.socket not running or doesn't exist."
 # TODO: remove uncloud-corrosion.service handling in 0.22 once pre-0.20 systemd installs are gone.
 systemctl stop uncloud-corrosion.service || log "uncloud-corrosion.service not running or doesn't exist."
 systemctl disable uncloud.service || log "uncloud.service already disabled or doesn't exist."
+systemctl disable uncloud.socket || log "uncloud.socket already disabled or doesn't exist."
 systemctl disable uncloud-corrosion.service || log "uncloud-corrosion.service already disabled or doesn't exist."
 log "✓ Systemd services stopped."
 
 log "⏳ Removing systemd service files..."
 rm -fv "${INSTALL_SYSTEMD_DIR}/uncloud.service"
+rm -fv "${INSTALL_SYSTEMD_DIR}/uncloud.socket"
 # TODO: remove uncloud-corrosion.service handling in 0.22 once pre-0.20 systemd installs are gone.
 rm -fv "${INSTALL_SYSTEMD_DIR}/uncloud-corrosion.service"
 systemctl daemon-reload