add machine list command and corresponding RPC endpoint

cmd/uncloud/machine/list.go

@@ -0,0 +1,24 @@
+package machine
+
+import (
+	"github.com/spf13/cobra"
+	"uncloud/internal/cli"
+)
+
+func NewListCommand() *cobra.Command {
+	opts := addOptions{}
+	cmd := &cobra.Command{
+		Use:     "list",
+		Aliases: []string{"ls"},
+		Short:   "List machines in a cluster",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			uncli := cmd.Context().Value("cli").(*cli.CLI)
+			return uncli.ListMachines(cmd.Context(), opts.cluster)
+		},
+	}
+	cmd.Flags().StringVarP(
+		&opts.cluster, "cluster", "c", "",
+		"Name of the cluster (default is the current cluster)",
+	)
+	return cmd
+}

cmd/uncloud/machine/root.go

@@ -12,6 +12,7 @@ func NewRootCommand() *cobra.Command {
 	cmd.AddCommand(
 		NewAddCommand(),
 		NewInitCommand(),
+		NewListCommand(),
 		NewTokenCommand(),
 	)
 	return cmd

internal/cli/cli.go

@@ -6,6 +6,9 @@ import (
 	"fmt"
 	"google.golang.org/protobuf/types/known/emptypb"
 	"net/netip"
+	"os"
+	"strings"
+	"text/tabwriter"
 	"uncloud/internal/cli/client"
 	"uncloud/internal/cli/client/connector"
 	"uncloud/internal/cli/config"
@@ -250,15 +253,18 @@ func (cli *CLI) AddMachine(ctx context.Context, remoteMachine RemoteMachine, clu
 	if err != nil {
 		return fmt.Errorf("add machine to cluster: %w", err)
 	}
-
 	fmt.Println("Machine added to cluster", addResp.Machine)
 
+	//joinReq := &pb.JoinClusterRequest{
+	//	Machine: addResp.Machine,
+	//}
+
 	// TODO:
 	// --1. Establish a client connection to the remote machine.
 	// --2. Check if the machine is already provisioned and ask the user to reset it first.
 	// --3. Download and install the latest uncloudd binary by running the install shell script from GitHub.
 	// --4. Request token from the remote machine.
-	// 5. Add the machine to the cluster using its token and receive the added machine info.
+	// --5. Add the machine to the cluster using its token and receive the added machine info.
 	// 6. Request the machine to join the cluster using the configuration token.
 	// 7. Save the machine's SSH connection details in the cluster config.
 
@@ -275,3 +281,42 @@ func (cli *CLI) AddMachine(ctx context.Context, remoteMachine RemoteMachine, clu
 
 	return nil
 }
+
+func (cli *CLI) ListMachines(ctx context.Context, clusterName string) error {
+	c, err := cli.ConnectCluster(ctx, clusterName)
+	if err != nil {
+		return fmt.Errorf("connect to cluster: %w", err)
+	}
+	defer func() {
+		_ = c.Close()
+	}()
+
+	listResp, err := c.ListMachines(ctx, &emptypb.Empty{})
+	if err != nil {
+		return fmt.Errorf("list machines: %w", err)
+	}
+
+	// Print the list of machines in a table format.
+	tw := tabwriter.NewWriter(os.Stdout, 0, 0, 3, ' ', 0)
+	// Print header.
+	if _, err = fmt.Fprintln(tw, "NAME\tSUBNET\tPUBLIC KEY\tENDPOINTS"); err != nil {
+		return fmt.Errorf("write header: %w", err)
+	}
+	// Print rows.
+	fmt.Println("listResp", len(listResp.Machines))
+	for _, m := range listResp.Machines {
+		subnet, _ := m.Network.Subnet.ToPrefix()
+		endpoints := make([]string, len(m.Network.Endpoints))
+		for i, ep := range m.Network.Endpoints {
+			addrPort, _ := ep.ToAddrPort()
+			endpoints[i] = addrPort.String()
+		}
+		publicKey := secret.Secret(m.Network.PublicKey)
+		if _, err = fmt.Fprintf(
+			tw, "%s\t%s\t%s\t%s\n", m.Name, subnet, publicKey, strings.Join(endpoints, ", "),
+		); err != nil {
+			return fmt.Errorf("write row: %w", err)
+		}
+	}
+	return tw.Flush()
+}

internal/machine/api/pb/cluster.pb.go

@@ -9,6 +9,7 @@ package pb
 import (
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
+	emptypb "google.golang.org/protobuf/types/known/emptypb"
 	reflect "reflect"
 	sync "sync"
 )
@@ -122,6 +123,53 @@ func (x *AddMachineResponse) GetMachine() *MachineInfo {
 	return nil
 }
 
+type ListMachinesResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Machines []*MachineInfo `protobuf:"bytes,1,rep,name=machines,proto3" json:"machines,omitempty"`
+}
+
+func (x *ListMachinesResponse) Reset() {
+	*x = ListMachinesResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_internal_machine_api_pb_cluster_proto_msgTypes[2]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *ListMachinesResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ListMachinesResponse) ProtoMessage() {}
+
+func (x *ListMachinesResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_internal_machine_api_pb_cluster_proto_msgTypes[2]
+	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 ListMachinesResponse.ProtoReflect.Descriptor instead.
+func (*ListMachinesResponse) Descriptor() ([]byte, []int) {
+	return file_internal_machine_api_pb_cluster_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *ListMachinesResponse) GetMachines() []*MachineInfo {
+	if x != nil {
+		return x.Machines
+	}
+	return nil
+}
+
 type ListMachineEndpointsRequest struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -133,7 +181,7 @@ type ListMachineEndpointsRequest struct {
 func (x *ListMachineEndpointsRequest) Reset() {
 	*x = ListMachineEndpointsRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_internal_machine_api_pb_cluster_proto_msgTypes[2]
+		mi := &file_internal_machine_api_pb_cluster_proto_msgTypes[3]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -146,7 +194,7 @@ func (x *ListMachineEndpointsRequest) String() string {
 func (*ListMachineEndpointsRequest) ProtoMessage() {}
 
 func (x *ListMachineEndpointsRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_internal_machine_api_pb_cluster_proto_msgTypes[2]
+	mi := &file_internal_machine_api_pb_cluster_proto_msgTypes[3]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -159,7 +207,7 @@ func (x *ListMachineEndpointsRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ListMachineEndpointsRequest.ProtoReflect.Descriptor instead.
 func (*ListMachineEndpointsRequest) Descriptor() ([]byte, []int) {
-	return file_internal_machine_api_pb_cluster_proto_rawDescGZIP(), []int{2}
+	return file_internal_machine_api_pb_cluster_proto_rawDescGZIP(), []int{3}
 }
 
 func (x *ListMachineEndpointsRequest) GetId() string {
@@ -180,7 +228,7 @@ type ListMachineEndpointsResponse struct {
 func (x *ListMachineEndpointsResponse) Reset() {
 	*x = ListMachineEndpointsResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_internal_machine_api_pb_cluster_proto_msgTypes[3]
+		mi := &file_internal_machine_api_pb_cluster_proto_msgTypes[4]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -193,7 +241,7 @@ func (x *ListMachineEndpointsResponse) String() string {
 func (*ListMachineEndpointsResponse) ProtoMessage() {}
 
 func (x *ListMachineEndpointsResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_internal_machine_api_pb_cluster_proto_msgTypes[3]
+	mi := &file_internal_machine_api_pb_cluster_proto_msgTypes[4]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -206,7 +254,7 @@ func (x *ListMachineEndpointsResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ListMachineEndpointsResponse.ProtoReflect.Descriptor instead.
 func (*ListMachineEndpointsResponse) Descriptor() ([]byte, []int) {
-	return file_internal_machine_api_pb_cluster_proto_rawDescGZIP(), []int{3}
+	return file_internal_machine_api_pb_cluster_proto_rawDescGZIP(), []int{4}
 }
 
 func (x *ListMachineEndpointsResponse) GetEndpoints() *MachineEndpoints {
@@ -229,7 +277,7 @@ type MachineInfo struct {
 func (x *MachineInfo) Reset() {
 	*x = MachineInfo{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_internal_machine_api_pb_cluster_proto_msgTypes[4]
+		mi := &file_internal_machine_api_pb_cluster_proto_msgTypes[5]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -242,7 +290,7 @@ func (x *MachineInfo) String() string {
 func (*MachineInfo) ProtoMessage() {}
 
 func (x *MachineInfo) ProtoReflect() protoreflect.Message {
-	mi := &file_internal_machine_api_pb_cluster_proto_msgTypes[4]
+	mi := &file_internal_machine_api_pb_cluster_proto_msgTypes[5]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -255,7 +303,7 @@ func (x *MachineInfo) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use MachineInfo.ProtoReflect.Descriptor instead.
 func (*MachineInfo) Descriptor() ([]byte, []int) {
-	return file_internal_machine_api_pb_cluster_proto_rawDescGZIP(), []int{4}
+	return file_internal_machine_api_pb_cluster_proto_rawDescGZIP(), []int{5}
 }
 
 func (x *MachineInfo) GetId() string {
@@ -293,7 +341,7 @@ type NetworkConfig struct {
 func (x *NetworkConfig) Reset() {
 	*x = NetworkConfig{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_internal_machine_api_pb_cluster_proto_msgTypes[5]
+		mi := &file_internal_machine_api_pb_cluster_proto_msgTypes[6]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -306,7 +354,7 @@ func (x *NetworkConfig) String() string {
 func (*NetworkConfig) ProtoMessage() {}
 
 func (x *NetworkConfig) ProtoReflect() protoreflect.Message {
-	mi := &file_internal_machine_api_pb_cluster_proto_msgTypes[5]
+	mi := &file_internal_machine_api_pb_cluster_proto_msgTypes[6]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -319,7 +367,7 @@ func (x *NetworkConfig) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use NetworkConfig.ProtoReflect.Descriptor instead.
 func (*NetworkConfig) Descriptor() ([]byte, []int) {
-	return file_internal_machine_api_pb_cluster_proto_rawDescGZIP(), []int{5}
+	return file_internal_machine_api_pb_cluster_proto_rawDescGZIP(), []int{6}
 }
 
 func (x *NetworkConfig) GetSubnet() *IPPrefix {
@@ -362,7 +410,7 @@ type MachineEndpoints struct {
 func (x *MachineEndpoints) Reset() {
 	*x = MachineEndpoints{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_internal_machine_api_pb_cluster_proto_msgTypes[6]
+		mi := &file_internal_machine_api_pb_cluster_proto_msgTypes[7]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -375,7 +423,7 @@ func (x *MachineEndpoints) String() string {
 func (*MachineEndpoints) ProtoMessage() {}
 
 func (x *MachineEndpoints) ProtoReflect() protoreflect.Message {
-	mi := &file_internal_machine_api_pb_cluster_proto_msgTypes[6]
+	mi := &file_internal_machine_api_pb_cluster_proto_msgTypes[7]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -388,7 +436,7 @@ func (x *MachineEndpoints) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use MachineEndpoints.ProtoReflect.Descriptor instead.
 func (*MachineEndpoints) Descriptor() ([]byte, []int) {
-	return file_internal_machine_api_pb_cluster_proto_rawDescGZIP(), []int{6}
+	return file_internal_machine_api_pb_cluster_proto_rawDescGZIP(), []int{7}
 }
 
 func (x *MachineEndpoints) GetId() string {
@@ -416,7 +464,7 @@ type User struct {
 func (x *User) Reset() {
 	*x = User{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_internal_machine_api_pb_cluster_proto_msgTypes[7]
+		mi := &file_internal_machine_api_pb_cluster_proto_msgTypes[8]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -429,7 +477,7 @@ func (x *User) String() string {
 func (*User) ProtoMessage() {}
 
 func (x *User) ProtoReflect() protoreflect.Message {
-	mi := &file_internal_machine_api_pb_cluster_proto_msgTypes[7]
+	mi := &file_internal_machine_api_pb_cluster_proto_msgTypes[8]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -442,7 +490,7 @@ func (x *User) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use User.ProtoReflect.Descriptor instead.
 func (*User) Descriptor() ([]byte, []int) {
-	return file_internal_machine_api_pb_cluster_proto_rawDescGZIP(), []int{7}
+	return file_internal_machine_api_pb_cluster_proto_rawDescGZIP(), []int{8}
 }
 
 func (x *User) GetNetwork() *NetworkConfig {
@@ -468,7 +516,7 @@ type State struct {
 func (x *State) Reset() {
 	*x = State{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_internal_machine_api_pb_cluster_proto_msgTypes[8]
+		mi := &file_internal_machine_api_pb_cluster_proto_msgTypes[9]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -481,7 +529,7 @@ func (x *State) String() string {
 func (*State) ProtoMessage() {}
 
 func (x *State) ProtoReflect() protoreflect.Message {
-	mi := &file_internal_machine_api_pb_cluster_proto_msgTypes[8]
+	mi := &file_internal_machine_api_pb_cluster_proto_msgTypes[9]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -494,7 +542,7 @@ func (x *State) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use State.ProtoReflect.Descriptor instead.
 func (*State) Descriptor() ([]byte, []int) {
-	return file_internal_machine_api_pb_cluster_proto_rawDescGZIP(), []int{8}
+	return file_internal_machine_api_pb_cluster_proto_rawDescGZIP(), []int{9}
 }
 
 func (x *State) GetNetwork() *IPPrefix {
@@ -530,90 +578,100 @@ var File_internal_machine_api_pb_cluster_proto protoreflect.FileDescriptor
 var file_internal_machine_api_pb_cluster_proto_rawDesc = []byte{
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-	0x73, 0x52, 0x05, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x3a, 0x02, 0x38, 0x01, 0x32, 0xa5, 0x01, 0x0a,
+	0x67, 0x6c, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2e, 0x45, 0x6d, 0x70,
-	0x07, 0x43, 0x6c, 0x75, 0x73, 0x74, 0x65, 0x72, 0x12, 0x3d, 0x0a, 0x0a, 0x41, 0x64, 0x64, 0x4d,
+	0x74, 0x79, 0x1a, 0x19, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x4c, 0x69, 0x73, 0x74, 0x4d, 0x61, 0x63,
-	0x61, 0x63, 0x68, 0x69, 0x6e, 0x65, 0x12, 0x16, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x41, 0x64, 0x64,
+	0x68, 0x69, 0x6e, 0x65, 0x73, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x12, 0x5b, 0x0a,
-	0x4d, 0x61, 0x63, 0x68, 0x69, 0x6e, 0x65, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x17,
+	0x14, 0x4c, 0x69, 0x73, 0x74, 0x4d, 0x61, 0x63, 0x68, 0x69, 0x6e, 0x65, 0x45, 0x6e, 0x64, 0x70,
-	0x2e, 0x61, 0x70, 0x69, 0x2e, 0x41, 0x64, 0x64, 0x4d, 0x61, 0x63, 0x68, 0x69, 0x6e, 0x65, 0x52,
+	0x6f, 0x69, 0x6e, 0x74, 0x73, 0x12, 0x20, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x4c, 0x69, 0x73, 0x74,
-	0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x12, 0x5b, 0x0a, 0x14, 0x4c, 0x69, 0x73, 0x74, 0x4d,
+	0x4d, 0x61, 0x63, 0x68, 0x69, 0x6e, 0x65, 0x45, 0x6e, 0x64, 0x70, 0x6f, 0x69, 0x6e, 0x74, 0x73,
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+	0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x21, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x4c, 0x69,
-	0x20, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x4c, 0x69, 0x73, 0x74, 0x4d, 0x61, 0x63, 0x68, 0x69, 0x6e,
+	0x73, 0x74, 0x4d, 0x61, 0x63, 0x68, 0x69, 0x6e, 0x65, 0x45, 0x6e, 0x64, 0x70, 0x6f, 0x69, 0x6e,
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+	0x74, 0x73, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x42, 0x37, 0x5a, 0x35, 0x67, 0x69,
-	0x74, 0x1a, 0x21, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x4c, 0x69, 0x73, 0x74, 0x4d, 0x61, 0x63, 0x68,
+	0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x70, 0x73, 0x76, 0x69, 0x64, 0x65, 0x72,
-	0x69, 0x6e, 0x65, 0x45, 0x6e, 0x64, 0x70, 0x6f, 0x69, 0x6e, 0x74, 0x73, 0x52, 0x65, 0x73, 0x70,
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+	0x72, 0x6e, 0x61, 0x6c, 0x2f, 0x6d, 0x61, 0x63, 0x68, 0x69, 0x6e, 0x65, 0x2f, 0x61, 0x70, 0x69,
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+	0x2f, 0x70, 0x62, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
-	0x63, 0x6c, 0x6f, 0x75, 0x64, 0x2f, 0x69, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x61, 0x6c, 0x2f, 0x6d,
-	0x61, 0x63, 0x68, 0x69, 0x6e, 0x65, 0x2f, 0x61, 0x70, 0x69, 0x2f, 0x70, 0x62, 0x62, 0x06, 0x70,
-	0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -628,48 +686,53 @@ func file_internal_machine_api_pb_cluster_proto_rawDescGZIP() []byte {
 	return file_internal_machine_api_pb_cluster_proto_rawDescData
 }
 
-var file_internal_machine_api_pb_cluster_proto_msgTypes = make([]protoimpl.MessageInfo, 11)
+var file_internal_machine_api_pb_cluster_proto_msgTypes = make([]protoimpl.MessageInfo, 12)
 var file_internal_machine_api_pb_cluster_proto_goTypes = []any{
 	(*AddMachineRequest)(nil),            // 0: api.AddMachineRequest
 	(*AddMachineResponse)(nil),           // 1: api.AddMachineResponse
-	(*ListMachineEndpointsRequest)(nil),  // 2: api.ListMachineEndpointsRequest
+	(*ListMachinesResponse)(nil),         // 2: api.ListMachinesResponse
-	(*ListMachineEndpointsResponse)(nil), // 3: api.ListMachineEndpointsResponse
+	(*ListMachineEndpointsRequest)(nil),  // 3: api.ListMachineEndpointsRequest
-	(*MachineInfo)(nil),                  // 4: api.MachineInfo
+	(*ListMachineEndpointsResponse)(nil), // 4: api.ListMachineEndpointsResponse
-	(*NetworkConfig)(nil),                // 5: api.NetworkConfig
+	(*MachineInfo)(nil),                  // 5: api.MachineInfo
-	(*MachineEndpoints)(nil),             // 6: api.MachineEndpoints
+	(*NetworkConfig)(nil),                // 6: api.NetworkConfig
-	(*User)(nil),                         // 7: api.User
+	(*MachineEndpoints)(nil),             // 7: api.MachineEndpoints
-	(*State)(nil),                        // 8: api.State
+	(*User)(nil),                         // 8: api.User
-	nil,                                  // 9: api.State.MachinesEntry
+	(*State)(nil),                        // 9: api.State
-	nil,                                  // 10: api.State.EndpointsEntry
+	nil,                                  // 10: api.State.MachinesEntry
-	(*IPPrefix)(nil),                     // 11: api.IPPrefix
+	nil,                                  // 11: api.State.EndpointsEntry
-	(*IP)(nil),                           // 12: api.IP
+	(*IPPrefix)(nil),                     // 12: api.IPPrefix
-	(*IPPort)(nil),                       // 13: api.IPPort
+	(*IP)(nil),                           // 13: api.IP
+	(*IPPort)(nil),                       // 14: api.IPPort
+	(*emptypb.Empty)(nil),                // 15: google.protobuf.Empty
 }
 var file_internal_machine_api_pb_cluster_proto_depIdxs = []int32{
-	5,  // 0: api.AddMachineRequest.network:type_name -> api.NetworkConfig
+	6,  // 0: api.AddMachineRequest.network:type_name -> api.NetworkConfig
-	4,  // 1: api.AddMachineResponse.machine:type_name -> api.MachineInfo
+	5,  // 1: api.AddMachineResponse.machine:type_name -> api.MachineInfo
-	6,  // 2: api.ListMachineEndpointsResponse.endpoints:type_name -> api.MachineEndpoints
+	5,  // 2: api.ListMachinesResponse.machines:type_name -> api.MachineInfo
-	5,  // 3: api.MachineInfo.network:type_name -> api.NetworkConfig
+	7,  // 3: api.ListMachineEndpointsResponse.endpoints:type_name -> api.MachineEndpoints
-	11, // 4: api.NetworkConfig.subnet:type_name -> api.IPPrefix
+	6,  // 4: api.MachineInfo.network:type_name -> api.NetworkConfig
-	12, // 5: api.NetworkConfig.management_ip:type_name -> api.IP
+	12, // 5: api.NetworkConfig.subnet:type_name -> api.IPPrefix
-	13, // 6: api.NetworkConfig.endpoints:type_name -> api.IPPort
+	13, // 6: api.NetworkConfig.management_ip:type_name -> api.IP
-	13, // 7: api.MachineEndpoints.endpoints:type_name -> api.IPPort
+	14, // 7: api.NetworkConfig.endpoints:type_name -> api.IPPort
-	5,  // 8: api.User.network:type_name -> api.NetworkConfig
+	14, // 8: api.MachineEndpoints.endpoints:type_name -> api.IPPort
-	11, // 9: api.State.Network:type_name -> api.IPPrefix
+	6,  // 9: api.User.network:type_name -> api.NetworkConfig
-	9,  // 10: api.State.machines:type_name -> api.State.MachinesEntry
+	12, // 10: api.State.Network:type_name -> api.IPPrefix
-	10, // 11: api.State.endpoints:type_name -> api.State.EndpointsEntry
+	10, // 11: api.State.machines:type_name -> api.State.MachinesEntry
-	7,  // 12: api.State.users:type_name -> api.User
+	11, // 12: api.State.endpoints:type_name -> api.State.EndpointsEntry
-	4,  // 13: api.State.MachinesEntry.value:type_name -> api.MachineInfo
+	8,  // 13: api.State.users:type_name -> api.User
-	6,  // 14: api.State.EndpointsEntry.value:type_name -> api.MachineEndpoints
+	5,  // 14: api.State.MachinesEntry.value:type_name -> api.MachineInfo
-	0,  // 15: api.Cluster.AddMachine:input_type -> api.AddMachineRequest
+	7,  // 15: api.State.EndpointsEntry.value:type_name -> api.MachineEndpoints
-	2,  // 16: api.Cluster.ListMachineEndpoints:input_type -> api.ListMachineEndpointsRequest
+	0,  // 16: api.Cluster.AddMachine:input_type -> api.AddMachineRequest
-	1,  // 17: api.Cluster.AddMachine:output_type -> api.AddMachineResponse
+	15, // 17: api.Cluster.ListMachines:input_type -> google.protobuf.Empty
-	3,  // 18: api.Cluster.ListMachineEndpoints:output_type -> api.ListMachineEndpointsResponse
+	3,  // 18: api.Cluster.ListMachineEndpoints:input_type -> api.ListMachineEndpointsRequest
-	17, // [17:19] is the sub-list for method output_type
+	1,  // 19: api.Cluster.AddMachine:output_type -> api.AddMachineResponse
-	15, // [15:17] is the sub-list for method input_type
+	2,  // 20: api.Cluster.ListMachines:output_type -> api.ListMachinesResponse
-	15, // [15:15] is the sub-list for extension type_name
+	4,  // 21: api.Cluster.ListMachineEndpoints:output_type -> api.ListMachineEndpointsResponse
-	15, // [15:15] is the sub-list for extension extendee
+	19, // [19:22] is the sub-list for method output_type
-	0,  // [0:15] is the sub-list for field type_name
+	16, // [16:19] is the sub-list for method input_type
+	16, // [16:16] is the sub-list for extension type_name
+	16, // [16:16] is the sub-list for extension extendee
+	0,  // [0:16] is the sub-list for field type_name
 }
 
 func init() { file_internal_machine_api_pb_cluster_proto_init() }
@@ -704,7 +767,7 @@ func file_internal_machine_api_pb_cluster_proto_init() {
 			}
 		}
 		file_internal_machine_api_pb_cluster_proto_msgTypes[2].Exporter = func(v any, i int) any {
-			switch v := v.(*ListMachineEndpointsRequest); i {
+			switch v := v.(*ListMachinesResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -716,7 +779,7 @@ func file_internal_machine_api_pb_cluster_proto_init() {
 			}
 		}
 		file_internal_machine_api_pb_cluster_proto_msgTypes[3].Exporter = func(v any, i int) any {
-			switch v := v.(*ListMachineEndpointsResponse); i {
+			switch v := v.(*ListMachineEndpointsRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -728,7 +791,7 @@ func file_internal_machine_api_pb_cluster_proto_init() {
 			}
 		}
 		file_internal_machine_api_pb_cluster_proto_msgTypes[4].Exporter = func(v any, i int) any {
-			switch v := v.(*MachineInfo); i {
+			switch v := v.(*ListMachineEndpointsResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -740,7 +803,7 @@ func file_internal_machine_api_pb_cluster_proto_init() {
 			}
 		}
 		file_internal_machine_api_pb_cluster_proto_msgTypes[5].Exporter = func(v any, i int) any {
-			switch v := v.(*NetworkConfig); i {
+			switch v := v.(*MachineInfo); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -752,7 +815,7 @@ func file_internal_machine_api_pb_cluster_proto_init() {
 			}
 		}
 		file_internal_machine_api_pb_cluster_proto_msgTypes[6].Exporter = func(v any, i int) any {
-			switch v := v.(*MachineEndpoints); i {
+			switch v := v.(*NetworkConfig); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -764,7 +827,7 @@ func file_internal_machine_api_pb_cluster_proto_init() {
 			}
 		}
 		file_internal_machine_api_pb_cluster_proto_msgTypes[7].Exporter = func(v any, i int) any {
-			switch v := v.(*User); i {
+			switch v := v.(*MachineEndpoints); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -776,6 +839,18 @@ func file_internal_machine_api_pb_cluster_proto_init() {
 			}
 		}
 		file_internal_machine_api_pb_cluster_proto_msgTypes[8].Exporter = func(v any, i int) any {
+			switch v := v.(*User); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_internal_machine_api_pb_cluster_proto_msgTypes[9].Exporter = func(v any, i int) any {
 			switch v := v.(*State); i {
 			case 0:
 				return &v.state
@@ -794,7 +869,7 @@ func file_internal_machine_api_pb_cluster_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_internal_machine_api_pb_cluster_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   11,
+			NumMessages:   12,
 			NumExtensions: 0,
 			NumServices:   1,
 		},

internal/machine/api/pb/cluster.proto

@@ -4,10 +4,12 @@ package api;
 
 option go_package = "github.com/psviderski/uncloud/internal/machine/api/pb";
 
+import "google/protobuf/empty.proto";
 import "internal/machine/api/pb/common.proto";
 
 service Cluster {
   rpc AddMachine(AddMachineRequest) returns (AddMachineResponse);
+  rpc ListMachines(google.protobuf.Empty) returns (ListMachinesResponse);
   rpc ListMachineEndpoints(ListMachineEndpointsRequest) returns (ListMachineEndpointsResponse);
 }
 
@@ -20,6 +22,10 @@ message AddMachineResponse {
   MachineInfo machine = 1;
 }
 
+message ListMachinesResponse {
+  repeated MachineInfo machines = 1;
+}
+
 message ListMachineEndpointsRequest {
   string id = 1;
 }

internal/machine/api/pb/cluster_grpc.pb.go

@@ -11,6 +11,7 @@ import (
 	grpc "google.golang.org/grpc"
 	codes "google.golang.org/grpc/codes"
 	status "google.golang.org/grpc/status"
+	emptypb "google.golang.org/protobuf/types/known/emptypb"
 )
 
 // This is a compile-time assertion to ensure that this generated file
@@ -20,6 +21,7 @@ const _ = grpc.SupportPackageIsVersion9
 
 const (
 	Cluster_AddMachine_FullMethodName           = "/api.Cluster/AddMachine"
+	Cluster_ListMachines_FullMethodName         = "/api.Cluster/ListMachines"
 	Cluster_ListMachineEndpoints_FullMethodName = "/api.Cluster/ListMachineEndpoints"
 )
 
@@ -28,6 +30,7 @@ const (
 // For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
 type ClusterClient interface {
 	AddMachine(ctx context.Context, in *AddMachineRequest, opts ...grpc.CallOption) (*AddMachineResponse, error)
+	ListMachines(ctx context.Context, in *emptypb.Empty, opts ...grpc.CallOption) (*ListMachinesResponse, error)
 	ListMachineEndpoints(ctx context.Context, in *ListMachineEndpointsRequest, opts ...grpc.CallOption) (*ListMachineEndpointsResponse, error)
 }
 
@@ -49,6 +52,16 @@ func (c *clusterClient) AddMachine(ctx context.Context, in *AddMachineRequest, o
 	return out, nil
 }
 
+func (c *clusterClient) ListMachines(ctx context.Context, in *emptypb.Empty, opts ...grpc.CallOption) (*ListMachinesResponse, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(ListMachinesResponse)
+	err := c.cc.Invoke(ctx, Cluster_ListMachines_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 func (c *clusterClient) ListMachineEndpoints(ctx context.Context, in *ListMachineEndpointsRequest, opts ...grpc.CallOption) (*ListMachineEndpointsResponse, error) {
 	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
 	out := new(ListMachineEndpointsResponse)
@@ -64,6 +77,7 @@ func (c *clusterClient) ListMachineEndpoints(ctx context.Context, in *ListMachin
 // for forward compatibility.
 type ClusterServer interface {
 	AddMachine(context.Context, *AddMachineRequest) (*AddMachineResponse, error)
+	ListMachines(context.Context, *emptypb.Empty) (*ListMachinesResponse, error)
 	ListMachineEndpoints(context.Context, *ListMachineEndpointsRequest) (*ListMachineEndpointsResponse, error)
 	mustEmbedUnimplementedClusterServer()
 }
@@ -78,6 +92,9 @@ type UnimplementedClusterServer struct{}
 func (UnimplementedClusterServer) AddMachine(context.Context, *AddMachineRequest) (*AddMachineResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method AddMachine not implemented")
 }
+func (UnimplementedClusterServer) ListMachines(context.Context, *emptypb.Empty) (*ListMachinesResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method ListMachines not implemented")
+}
 func (UnimplementedClusterServer) ListMachineEndpoints(context.Context, *ListMachineEndpointsRequest) (*ListMachineEndpointsResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method ListMachineEndpoints not implemented")
 }
@@ -120,6 +137,24 @@ func _Cluster_AddMachine_Handler(srv interface{}, ctx context.Context, dec func(
 	return interceptor(ctx, in, info, handler)
 }
 
+func _Cluster_ListMachines_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.(ClusterServer).ListMachines(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: Cluster_ListMachines_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(ClusterServer).ListMachines(ctx, req.(*emptypb.Empty))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 func _Cluster_ListMachineEndpoints_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
 	in := new(ListMachineEndpointsRequest)
 	if err := dec(in); err != nil {
@@ -149,6 +184,10 @@ var Cluster_ServiceDesc = grpc.ServiceDesc{
 			MethodName: "AddMachine",
 			Handler:    _Cluster_AddMachine_Handler,
 		},
+		{
+			MethodName: "ListMachines",
+			Handler:    _Cluster_ListMachines_Handler,
+		},
 		{
 			MethodName: "ListMachineEndpoints",
 			Handler:    _Cluster_ListMachineEndpoints_Handler,

internal/machine/api/pb/machine.pb.go

@@ -131,6 +131,61 @@ func (x *InitClusterResponse) GetMachine() *MachineInfo {
 	return nil
 }
 
+type JoinClusterRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Machine       *MachineInfo   `protobuf:"bytes,1,opt,name=machine,proto3" json:"machine,omitempty"`
+	OtherMachines []*MachineInfo `protobuf:"bytes,3,rep,name=other_machines,json=otherMachines,proto3" json:"other_machines,omitempty"`
+}
+
+func (x *JoinClusterRequest) Reset() {
+	*x = JoinClusterRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_internal_machine_api_pb_machine_proto_msgTypes[2]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *JoinClusterRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*JoinClusterRequest) ProtoMessage() {}
+
+func (x *JoinClusterRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_internal_machine_api_pb_machine_proto_msgTypes[2]
+	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 JoinClusterRequest.ProtoReflect.Descriptor instead.
+func (*JoinClusterRequest) Descriptor() ([]byte, []int) {
+	return file_internal_machine_api_pb_machine_proto_rawDescGZIP(), []int{2}
+}
+
+func (x *JoinClusterRequest) GetMachine() *MachineInfo {
+	if x != nil {
+		return x.Machine
+	}
+	return nil
+}
+
+func (x *JoinClusterRequest) GetOtherMachines() []*MachineInfo {
+	if x != nil {
+		return x.OtherMachines
+	}
+	return nil
+}
+
 type TokenResponse struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -142,7 +197,7 @@ type TokenResponse struct {
 func (x *TokenResponse) Reset() {
 	*x = TokenResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_internal_machine_api_pb_machine_proto_msgTypes[2]
+		mi := &file_internal_machine_api_pb_machine_proto_msgTypes[3]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -155,7 +210,7 @@ func (x *TokenResponse) String() string {
 func (*TokenResponse) ProtoMessage() {}
 
 func (x *TokenResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_internal_machine_api_pb_machine_proto_msgTypes[2]
+	mi := &file_internal_machine_api_pb_machine_proto_msgTypes[3]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -168,7 +223,7 @@ func (x *TokenResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use TokenResponse.ProtoReflect.Descriptor instead.
 func (*TokenResponse) Descriptor() ([]byte, []int) {
-	return file_internal_machine_api_pb_machine_proto_rawDescGZIP(), []int{2}
+	return file_internal_machine_api_pb_machine_proto_rawDescGZIP(), []int{3}
 }
 
 func (x *TokenResponse) GetToken() string {
@@ -202,22 +257,33 @@ var file_internal_machine_api_pb_machine_proto_rawDesc = []byte{
 	0x75, 0x73, 0x74, 0x65, 0x72, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x12, 0x2a, 0x0a,
 	0x07, 0x6d, 0x61, 0x63, 0x68, 0x69, 0x6e, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x10,
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+	0x52, 0x07, 0x6d, 0x61, 0x63, 0x68, 0x69, 0x6e, 0x65, 0x22, 0x79, 0x0a, 0x12, 0x4a, 0x6f, 0x69,
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-	0x6f, 0x74, 0x6f, 0x33,
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+	0x6e, 0x43, 0x6c, 0x75, 0x73, 0x74, 0x65, 0x72, 0x12, 0x17, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x4a,
+	0x6f, 0x69, 0x6e, 0x43, 0x6c, 0x75, 0x73, 0x74, 0x65, 0x72, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73,
+	0x74, 0x1a, 0x16, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f,
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+	0x65, 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, 0x12, 0x2e, 0x61, 0x70, 0x69,
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+	0x5a, 0x35, 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,
+	0x69, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x61, 0x6c, 0x2f, 0x6d, 0x61, 0x63, 0x68, 0x69, 0x6e, 0x65,
+	0x2f, 0x61, 0x70, 0x69, 0x2f, 0x70, 0x62, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -232,29 +298,34 @@ func file_internal_machine_api_pb_machine_proto_rawDescGZIP() []byte {
 	return file_internal_machine_api_pb_machine_proto_rawDescData
 }
 
-var file_internal_machine_api_pb_machine_proto_msgTypes = make([]protoimpl.MessageInfo, 3)
+var file_internal_machine_api_pb_machine_proto_msgTypes = make([]protoimpl.MessageInfo, 4)
 var file_internal_machine_api_pb_machine_proto_goTypes = []any{
 	(*InitClusterRequest)(nil),  // 0: api.InitClusterRequest
 	(*InitClusterResponse)(nil), // 1: api.InitClusterResponse
-	(*TokenResponse)(nil),       // 2: api.TokenResponse
+	(*JoinClusterRequest)(nil),  // 2: api.JoinClusterRequest
-	(*IPPrefix)(nil),            // 3: api.IPPrefix
+	(*TokenResponse)(nil),       // 3: api.TokenResponse
-	(*User)(nil),                // 4: api.User
+	(*IPPrefix)(nil),            // 4: api.IPPrefix
-	(*MachineInfo)(nil),         // 5: api.MachineInfo
+	(*User)(nil),                // 5: api.User
-	(*emptypb.Empty)(nil),       // 6: google.protobuf.Empty
+	(*MachineInfo)(nil),         // 6: api.MachineInfo
+	(*emptypb.Empty)(nil),       // 7: google.protobuf.Empty
 }
 var file_internal_machine_api_pb_machine_proto_depIdxs = []int32{
-	3, // 0: api.InitClusterRequest.network:type_name -> api.IPPrefix
+	4, // 0: api.InitClusterRequest.network:type_name -> api.IPPrefix
-	4, // 1: api.InitClusterRequest.user:type_name -> api.User
+	5, // 1: api.InitClusterRequest.user:type_name -> api.User
-	5, // 2: api.InitClusterResponse.machine:type_name -> api.MachineInfo
+	6, // 2: api.InitClusterResponse.machine:type_name -> api.MachineInfo
-	0, // 3: api.Machine.InitCluster:input_type -> api.InitClusterRequest
+	6, // 3: api.JoinClusterRequest.machine:type_name -> api.MachineInfo
-	6, // 4: api.Machine.Token:input_type -> google.protobuf.Empty
+	6, // 4: api.JoinClusterRequest.other_machines:type_name -> api.MachineInfo
-	1, // 5: api.Machine.InitCluster:output_type -> api.InitClusterResponse
+	0, // 5: api.Machine.InitCluster:input_type -> api.InitClusterRequest
-	2, // 6: api.Machine.Token:output_type -> api.TokenResponse
+	2, // 6: api.Machine.JoinCluster:input_type -> api.JoinClusterRequest
-	5, // [5:7] is the sub-list for method output_type
+	7, // 7: api.Machine.Token:input_type -> google.protobuf.Empty
-	3, // [3:5] is the sub-list for method input_type
+	1, // 8: api.Machine.InitCluster:output_type -> api.InitClusterResponse
-	3, // [3:3] is the sub-list for extension type_name
+	7, // 9: api.Machine.JoinCluster:output_type -> google.protobuf.Empty
-	3, // [3:3] is the sub-list for extension extendee
+	3, // 10: api.Machine.Token:output_type -> api.TokenResponse
-	0, // [0:3] is the sub-list for field type_name
+	8, // [8:11] is the sub-list for method output_type
+	5, // [5:8] is the sub-list for method input_type
+	5, // [5:5] is the sub-list for extension type_name
+	5, // [5:5] is the sub-list for extension extendee
+	0, // [0:5] is the sub-list for field type_name
 }
 
 func init() { file_internal_machine_api_pb_machine_proto_init() }
@@ -290,6 +361,18 @@ func file_internal_machine_api_pb_machine_proto_init() {
 			}
 		}
 		file_internal_machine_api_pb_machine_proto_msgTypes[2].Exporter = func(v any, i int) any {
+			switch v := v.(*JoinClusterRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_internal_machine_api_pb_machine_proto_msgTypes[3].Exporter = func(v any, i int) any {
 			switch v := v.(*TokenResponse); i {
 			case 0:
 				return &v.state
@@ -308,7 +391,7 @@ func file_internal_machine_api_pb_machine_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_internal_machine_api_pb_machine_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   3,
+			NumMessages:   4,
 			NumExtensions: 0,
 			NumServices:   1,
 		},

internal/machine/api/pb/machine.proto

@@ -10,6 +10,7 @@ import "internal/machine/api/pb/cluster.proto";
 
 service Machine {
   rpc InitCluster(InitClusterRequest) returns (InitClusterResponse);
+  rpc JoinCluster(JoinClusterRequest) returns (google.protobuf.Empty);
   rpc Token(google.protobuf.Empty) returns (TokenResponse);
 }
 
@@ -23,6 +24,11 @@ message InitClusterResponse {
   MachineInfo machine = 1;
 }
 
+message JoinClusterRequest {
+  MachineInfo machine = 1;
+  repeated MachineInfo other_machines = 3;
+}
+
 message TokenResponse {
   string token = 1;
 }

internal/machine/api/pb/machine_grpc.pb.go

@@ -21,6 +21,7 @@ const _ = grpc.SupportPackageIsVersion9
 
 const (
 	Machine_InitCluster_FullMethodName = "/api.Machine/InitCluster"
+	Machine_JoinCluster_FullMethodName = "/api.Machine/JoinCluster"
 	Machine_Token_FullMethodName       = "/api.Machine/Token"
 )
 
@@ -29,6 +30,7 @@ const (
 // For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
 type MachineClient interface {
 	InitCluster(ctx context.Context, in *InitClusterRequest, opts ...grpc.CallOption) (*InitClusterResponse, error)
+	JoinCluster(ctx context.Context, in *JoinClusterRequest, opts ...grpc.CallOption) (*emptypb.Empty, error)
 	Token(ctx context.Context, in *emptypb.Empty, opts ...grpc.CallOption) (*TokenResponse, error)
 }
 
@@ -50,6 +52,16 @@ func (c *machineClient) InitCluster(ctx context.Context, in *InitClusterRequest,
 	return out, nil
 }
 
+func (c *machineClient) JoinCluster(ctx context.Context, in *JoinClusterRequest, opts ...grpc.CallOption) (*emptypb.Empty, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(emptypb.Empty)
+	err := c.cc.Invoke(ctx, Machine_JoinCluster_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 func (c *machineClient) Token(ctx context.Context, in *emptypb.Empty, opts ...grpc.CallOption) (*TokenResponse, error) {
 	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
 	out := new(TokenResponse)
@@ -65,6 +77,7 @@ func (c *machineClient) Token(ctx context.Context, in *emptypb.Empty, opts ...gr
 // for forward compatibility.
 type MachineServer interface {
 	InitCluster(context.Context, *InitClusterRequest) (*InitClusterResponse, error)
+	JoinCluster(context.Context, *JoinClusterRequest) (*emptypb.Empty, error)
 	Token(context.Context, *emptypb.Empty) (*TokenResponse, error)
 	mustEmbedUnimplementedMachineServer()
 }
@@ -79,6 +92,9 @@ type UnimplementedMachineServer struct{}
 func (UnimplementedMachineServer) InitCluster(context.Context, *InitClusterRequest) (*InitClusterResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method InitCluster not implemented")
 }
+func (UnimplementedMachineServer) JoinCluster(context.Context, *JoinClusterRequest) (*emptypb.Empty, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method JoinCluster not implemented")
+}
 func (UnimplementedMachineServer) Token(context.Context, *emptypb.Empty) (*TokenResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method Token not implemented")
 }
@@ -121,6 +137,24 @@ func _Machine_InitCluster_Handler(srv interface{}, ctx context.Context, dec func
 	return interceptor(ctx, in, info, handler)
 }
 
+func _Machine_JoinCluster_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(JoinClusterRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(MachineServer).JoinCluster(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: Machine_JoinCluster_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(MachineServer).JoinCluster(ctx, req.(*JoinClusterRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 func _Machine_Token_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 {
@@ -150,6 +184,10 @@ var Machine_ServiceDesc = grpc.ServiceDesc{
 			MethodName: "InitCluster",
 			Handler:    _Machine_InitCluster_Handler,
 		},
+		{
+			MethodName: "JoinCluster",
+			Handler:    _Machine_JoinCluster_Handler,
+		},
 		{
 			MethodName: "Token",
 			Handler:    _Machine_Token_Handler,

internal/machine/cluster/cluster.go

@@ -7,6 +7,7 @@ import (
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/status"
 	"google.golang.org/protobuf/proto"
+	"google.golang.org/protobuf/types/known/emptypb"
 	"log/slog"
 	"net/netip"
 	"uncloud/internal/machine/api/pb"
@@ -163,6 +164,21 @@ func (c *Cluster) AddMachine(ctx context.Context, req *pb.AddMachineRequest) (*p
 	return resp, nil
 }
 
+func (c *Cluster) ListMachines(ctx context.Context, _ *emptypb.Empty) (*pb.ListMachinesResponse, error) {
+	if c.state == nil {
+		return nil, status.Error(codes.FailedPrecondition, "cluster is not initialized")
+	}
+	// TODO: consider creating MachineInfo type that pb.MachineInfo is mapped to always carry valid data to reduce
+	//  error handling caused by conversions and nil pointers.
+	machines := make([]*pb.MachineInfo, 0, len(c.state.State.Machines))
+	for _, sm := range c.state.State.Machines {
+		m := proto.Clone(sm).(*pb.MachineInfo)
+		m.Network.Endpoints = c.state.State.Endpoints[m.Id].Endpoints
+		machines = append(machines, m)
+	}
+	return &pb.ListMachinesResponse{Machines: machines}, nil
+}
+
 func (c *Cluster) ListMachineEndpoints(
 	ctx context.Context, req *pb.ListMachineEndpointsRequest,
 ) (*pb.ListMachineEndpointsResponse, error) {