chore: allow DNS queries from Uncloud containers to the embedded DNS server

feat: add support for Compose profiles

.gitignore

@@ -27,8 +27,9 @@ go.work.sum
 .env
 .idea/
 
-data
-dist/
+/data/
+/dist/
+/uc
 
 # Web
 node_modules/

.goreleaser.yaml

@@ -24,6 +24,8 @@ builds:
     goarch:
       - amd64
       - arm64
+    ldflags:
+      - -s -w -X github.com/psviderski/uncloud/internal/version.version={{ .Version }}
 
   - id: uncloudd
     main: ./cmd/uncloudd
@@ -35,6 +37,8 @@ builds:
     goarch:
       - amd64
       - arm64
+    ldflags:
+      - -s -w -X github.com/psviderski/uncloud/internal/version.version={{ .Version }}
 
 archives:
   - id: uncloud

Makefile

@@ -31,11 +31,15 @@ reset-dev:
 	ssh ubuntu@152.67.101.197 "sudo systemctl stop uncloud && sudo rm -rf /var/lib/uncloud"
 
 demo-reset:
-	rm -fv ~/.config/uncloud/config.toml
+	rm -fv ~/.config/uncloud/config.yaml
 	ssh ubuntu@152.67.101.197 "AUTO_CONFIRM=true sudo -E uncloud-uninstall && docker rmi caddy:2.9.1"
 	ssh root@5.223.45.199 "AUTO_CONFIRM=true sudo -E uncloud-uninstall"
 	ssh spy@192.168.40.243 "AUTO_CONFIRM=true sudo -E uncloud-uninstall"
 
+.PHONY: ucind-cluster
+ucind-cluster:
+	go run ./cmd/ucind cluster rm && go run ./cmd/ucind cluster create -m 3
+
 .PHONY: proto
 proto:
 	protoc --go_out=. --go_opt=paths=source_relative --go-grpc_out=. --go-grpc_opt=paths=source_relative \

README.md

@@ -28,13 +28,17 @@ Deploy a highly available web app with automatic HTTPS across multiple regions a
 
 * **Deploy anywhere**: Combine cloud VMs, dedicated servers, and bare metal into a unified computing environment —
   regardless of location or provider.
+* **Docker Compose**: Familiar [Docker Compose](https://compose-spec.io/) format for defining services and volumes. No
+  need to learn a new bespoke DSL.
+* **Zero-downtime deployments**: Rolling updates without service interruption. Automatic rollback on failure is coming
+  soon.
+* **Service discovery**: Built-in DNS server resolves service names to container IPs.
+* **Persistent storage**: Run stateful services with Docker volumes managed across machines.
 * **Zero-config private network**: Automatic WireGuard mesh with peer discovery and NAT traversal. Containers get unique
   IPs for direct cross-machine communication.
 * **No control plane**: Fully decentralized design eliminates single points of failure and reduces operational overhead.
 * **Imperative over declarative**: Favoring imperative operations over state reconciliation simplifies both the mental
   model and troubleshooting.
-* **Zero-downtime deployments**: Rolling updates with health checks and automatic rollback on failure.
-* **Service discovery**: Built-in DNS server resolves service names to container IPs.
 * **Managed DNS**: Automatic DNS records `*.<id>.cluster.uncloud.run` for services with public access via managed
   [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
@@ -44,11 +48,9 @@ Deploy a highly available web app with automatic HTTPS across multiple regions a
 
 Coming soon:
 
-* Infrastructure as Code using Docker Compose format
 * Project isolation through environments/namespaces
-* Persistent volumes and secrets management
+* Configs and secrets management using providers such as HashiCorp Vault and 1Password
 * Monitoring and log aggregation
-* Database deployment and management
 
 Here is a diagram of an Uncloud multi-provider cluster of 3 machines:
 
@@ -270,7 +272,7 @@ I'd love your input! Here's how you can contribute:
 * [Subscribe](https://uncloud.run/#subscribe) to my newsletter to follow the progress, get early insights into new
   features, and be the first to know when it's ready for production use.
 * Watch this repository for releases.
-* Follow [@psviderski](https://github.com/psviderski) on GitHub.
+* Follow [@psviderski](https://x.com/psviderski) on X/Twitter.
 
 ## ❤️ Contributors
 

cmd/ucind/main.go

@@ -3,12 +3,13 @@ package main
 import (
 	"context"
 	"fmt"
-	"github.com/docker/docker/client"
-	"github.com/spf13/cobra"
 	"os"
 	"strings"
+
+	"github.com/docker/docker/client"
 	"github.com/psviderski/uncloud/cmd/ucind/cluster"
 	"github.com/psviderski/uncloud/internal/ucind"
+	"github.com/spf13/cobra"
 )
 
 func main() {
@@ -44,9 +45,9 @@ func main() {
 	}
 
 	// TODO: allow to override using UNCLOUD_CONFIG env var.
-	cmd.PersistentFlags().StringVar(&configPath, "uncloud-config", "~/.config/uncloud/config.toml",
+	cmd.PersistentFlags().StringVar(&configPath, "uncloud-config", "~/.config/uncloud/config.yaml",
 		"path to the Uncloud configuration file.")
-	_ = cmd.MarkPersistentFlagFilename("uncloud-config", "toml")
+	_ = cmd.MarkPersistentFlagFilename("uncloud-config", "yaml", "yml")
 
 	cmd.AddCommand(
 		cluster.NewRootCommand(),

cmd/uncloud/caddy/deploy.go

@@ -4,23 +4,23 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"maps"
+	"slices"
+	"strings"
+
 	"github.com/docker/cli/cli/streams"
 	"github.com/docker/compose/v2/pkg/progress"
 	"github.com/psviderski/uncloud/internal/cli"
 	"github.com/psviderski/uncloud/internal/machine/api/pb"
 	"github.com/psviderski/uncloud/pkg/api"
 	"github.com/psviderski/uncloud/pkg/client"
-	"github.com/psviderski/uncloud/pkg/client/deploy"
 	"github.com/spf13/cobra"
-	"maps"
-	"slices"
-	"strings"
 )
 
 type deployOptions struct {
-	image   string
-	machine string
-	cluster string
+	image    string
+	machines []string
+	context  string
 }
 
 func NewDeployCommand() *cobra.Command {
@@ -39,18 +39,19 @@ func NewDeployCommand() *cobra.Command {
 
 	cmd.Flags().StringVar(&opts.image, "image", "",
 		"Caddy Docker image to deploy. (default caddy:LATEST_VERSION)")
-	cmd.Flags().StringVarP(&opts.machine, "machine", "m", "",
-		"Machine names to deploy to (comma-separated). (default is all machines)")
+	cmd.Flags().StringSliceVarP(&opts.machines, "machine", "m", nil,
+		"Machine names to deploy to. Can be specified multiple times or as a comma-separated "+
+			"list of machine names. (default is all machines)")
 	cmd.Flags().StringVarP(
-		&opts.cluster, "cluster", "c", "",
-		"Name of the cluster to deploy to. (default is the current cluster)",
+		&opts.context, "context", "c", "",
+		"Name of the cluster context to deploy to. (default is the current context)",
 	)
 
 	return cmd
 }
 
 func runDeploy(ctx context.Context, uncli *cli.CLI, opts deployOptions) error {
-	clusterClient, err := uncli.ConnectCluster(ctx, opts.cluster)
+	clusterClient, err := uncli.ConnectCluster(ctx, opts.context)
 	if err != nil {
 		return fmt.Errorf("connect to cluster: %w", err)
 	}
@@ -87,16 +88,10 @@ func runDeploy(ctx context.Context, uncli *cli.CLI, opts deployOptions) error {
 	fmt.Println()
 	fmt.Println("Preparing a deployment plan...")
 
-	var filter deploy.MachineFilter
-	if opts.machine != "" {
-		machines := strings.Split(opts.machine, ",")
-		for i, m := range machines {
-			machines[i] = strings.TrimSpace(m)
-		}
-		filter = machineFilter(machines)
+	placement := api.Placement{
+		Machines: cli.ExpandCommaSeparatedValues(opts.machines),
 	}
-
-	d, err := clusterClient.NewCaddyDeployment(opts.image, filter)
+	d, err := clusterClient.NewCaddyDeployment(opts.image, placement)
 	if err != nil {
 		return fmt.Errorf("create caddy deployment: %w", err)
 	}
@@ -107,31 +102,18 @@ func runDeploy(ctx context.Context, uncli *cli.CLI, opts deployOptions) error {
 
 	plan, err := d.Plan(ctx)
 	if err != nil {
-		if errors.Is(err, deploy.ErrNoMatchingMachines) {
-			return fmt.Errorf("no machines found matching: %s", opts.machine)
-		}
 		return fmt.Errorf("plan caddy deployment: %w", err)
 	}
 
 	if len(plan.Operations) == 0 {
-		if opts.machine != "" {
-			fmt.Printf("%s service is up to date on selected machines.\n", client.CaddyServiceName)
-		} else {
-			fmt.Printf("%s service is up to date.\n", client.CaddyServiceName)
-		}
+		fmt.Printf("%s service is up to date.\n", client.CaddyServiceName)
 	} else {
 		if svc.ID == "" {
-			if opts.machine != "" {
-				fmt.Println("This will run a Caddy container on selected machines.")
+			if len(opts.machines) > 0 {
+				fmt.Println("This will run a Caddy container on each selected machine.")
 			} else {
 				fmt.Println("This will run a Caddy container on each machine.")
 			}
-		} else {
-			if opts.machine != "" {
-				fmt.Println("This will perform a rolling update of Caddy containers on selected machines.")
-			} else {
-				fmt.Println("This will perform a rolling update of Caddy containers on each machine.")
-			}
 		}
 
 		// Initialise a machine and container name resolver to properly format the plan output.
@@ -214,12 +196,3 @@ func UpdateDomainRecords(ctx context.Context, clusterClient *client.Client, prog
 
 	return nil
 }
-
-func machineFilter(machines []string) deploy.MachineFilter {
-	if len(machines) == 0 {
-		return nil
-	}
-	return func(m *pb.MachineInfo) bool {
-		return slices.Contains(machines, m.Name)
-	}
-}

cmd/uncloud/context/ls.go

@@ -0,0 +1,61 @@
+package context
+
+import (
+	"fmt"
+	"maps"
+	"os"
+	"slices"
+	"text/tabwriter"
+
+	"github.com/psviderski/uncloud/internal/cli"
+	"github.com/spf13/cobra"
+)
+
+func NewListCommand() *cobra.Command {
+	var clusterContext string
+
+	cmd := &cobra.Command{
+		Use:     "ls",
+		Aliases: []string{"list"},
+		Short:   "List available cluster contexts.",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			uncli := cmd.Context().Value("cli").(*cli.CLI)
+			return list(uncli)
+		},
+	}
+
+	cmd.Flags().StringVarP(
+		&clusterContext, "context", "c", "",
+		"Name of the cluster context. (default is the current context)",
+	)
+
+	return cmd
+}
+
+func list(uncli *cli.CLI) error {
+	if uncli.Config == nil {
+		return fmt.Errorf("context management is not available: Uncloud configuration file is not being used")
+	}
+
+	if len(uncli.Config.Contexts) == 0 {
+		fmt.Println("No contexts found")
+		return nil
+	}
+
+	contextNames := slices.Sorted(maps.Keys(uncli.Config.Contexts))
+	currentContext := uncli.Config.CurrentContext
+
+	tw := tabwriter.NewWriter(os.Stdout, 0, 0, 3, ' ', 0)
+	fmt.Fprintln(tw, "NAME\tCURRENT\tCONNECTIONS")
+
+	for _, name := range contextNames {
+		current := ""
+		if name == currentContext {
+			current = "*"
+		}
+		connCount := len(uncli.Config.Contexts[name].Connections)
+		fmt.Fprintf(tw, "%s\t%s\t%d\n", name, current, connCount)
+	}
+
+	return tw.Flush()
+}

cmd/uncloud/context/root.go

@@ -0,0 +1,25 @@
+package context
+
+import (
+	"github.com/psviderski/uncloud/internal/cli"
+	"github.com/spf13/cobra"
+)
+
+func NewRootCommand() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:     "ctx",
+		Aliases: []string{"context"},
+		Short:   "Switch between different cluster contexts. Contains subcommands to manage contexts.",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			uncli := cmd.Context().Value("cli").(*cli.CLI)
+			return selectContext(uncli)
+		},
+	}
+
+	cmd.AddCommand(
+		NewListCommand(),
+		NewUseCommand(),
+	)
+
+	return cmd
+}

cmd/uncloud/context/use.go

@@ -0,0 +1,82 @@
+package context
+
+import (
+	"fmt"
+	"maps"
+	"slices"
+
+	"github.com/charmbracelet/huh"
+	"github.com/psviderski/uncloud/internal/cli"
+	"github.com/spf13/cobra"
+)
+
+func NewUseCommand() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "use [CONTEXT]",
+		Short: "Switch to a different cluster context.",
+		Long: "Switch to a different cluster context. If no context is provided, " +
+			"a list of available contexts will be displayed for selection.",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			uncli := cmd.Context().Value("cli").(*cli.CLI)
+
+			if len(args) == 1 {
+				if err := uncli.SetCurrentContext(args[0]); err != nil {
+					return fmt.Errorf("failed to set the current cluster context to '%s': %w", args[0], err)
+				}
+				fmt.Printf("Current cluster context is now '%s'.\n", args[0])
+				return nil
+			}
+
+			return selectContext(uncli)
+		},
+	}
+
+	return cmd
+}
+
+func selectContext(uncli *cli.CLI) error {
+	if uncli.Config == nil {
+		return fmt.Errorf("context management is not available: Uncloud configuration file is not being used")
+	}
+	if len(uncli.Config.Contexts) == 0 {
+		return fmt.Errorf("no contexts found in Uncloud config (%s)", uncli.Config.Path())
+	}
+
+	contextNames := slices.Sorted(maps.Keys(uncli.Config.Contexts))
+
+	var selected string
+	form := huh.NewForm(
+		huh.NewGroup(
+			huh.NewSelect[string]().
+				Title("Select a cluster context").
+				Options(buildContextOptions(contextNames, uncli.Config.CurrentContext)...).
+				Value(&selected),
+		),
+	)
+	if err := form.Run(); err != nil {
+		return fmt.Errorf("select cluster context: %w", err)
+	}
+
+	if err := uncli.SetCurrentContext(selected); err != nil {
+		return fmt.Errorf("set current cluster context: %w", err)
+	}
+
+	fmt.Printf("Current cluster context is now '%s'.\n", selected)
+	return nil
+}
+
+func buildContextOptions(contexts []string, current string) []huh.Option[string] {
+	options := make([]huh.Option[string], len(contexts))
+
+	for i, ctx := range contexts {
+		opt := huh.NewOption(ctx, ctx)
+		if ctx == current {
+			opt.Key += " (current)"
+			opt = opt.Selected(true)
+		}
+
+		options[i] = opt
+	}
+
+	return options
+}

cmd/uncloud/deploy.go

@@ -4,30 +4,32 @@ import (
 	"context"
 	"errors"
 	"fmt"
-	"github.com/compose-spec/compose-go/v2/types"
+	"strings"
+
+	composecli "github.com/compose-spec/compose-go/v2/cli"
 	"github.com/docker/compose/v2/pkg/progress"
 	"github.com/psviderski/uncloud/internal/cli"
 	"github.com/psviderski/uncloud/pkg/api"
+	"github.com/psviderski/uncloud/pkg/client"
 	"github.com/psviderski/uncloud/pkg/client/compose"
 	"github.com/psviderski/uncloud/pkg/client/deploy"
 	"github.com/spf13/cobra"
-	"strings"
 )
 
 type deployOptions struct {
 	files    []string
+	profiles []string
 	services []string
 
-	cluster string
+	context string
 }
 
 // NewDeployCommand creates a new command to deploy services from a Compose file.
 func NewDeployCommand() *cobra.Command {
 	opts := deployOptions{}
 	cmd := &cobra.Command{
-		Use: "deploy [FLAGS] [SERVICE...]",
-		// TODO: remove WIP when the command is fully implemented.
-		Short: "WIP: Deploy services from a Compose file.",
+		Use:   "deploy [FLAGS] [SERVICE...]",
+		Short: "Deploy services from a Compose file.",
 		RunE: func(cmd *cobra.Command, args []string) error {
 			uncli := cmd.Context().Value("cli").(*cli.CLI)
 
@@ -40,29 +42,46 @@ func NewDeployCommand() *cobra.Command {
 	}
 
 	cmd.Flags().StringSliceVarP(&opts.files, "file", "f", nil,
-		"One or more Compose files to deploy services from. (default compose-ports-long.yaml)")
-	cmd.Flags().StringVarP(&opts.cluster, "cluster", "c", "",
-		"Name of the cluster to deploy to (default is the current cluster)")
+		"One or more Compose files to deploy services from. (default compose.yaml)")
+	cmd.Flags().StringSliceVarP(&opts.profiles, "profile", "p", nil,
+		"One or more Compose profiles to enable.")
+	cmd.Flags().StringVarP(&opts.context, "context", "c", "",
+		"Name of the cluster context to deploy to (default is the current context)")
+	// TODO: Consider adding a filter flag to specify which machines to deploy to but keep the rest running.
+	//  Could be useful to test a new version on a subset of machines before rolling out to all.
 
 	return cmd
 }
 
+// projectOpts returns the project options for the Compose file(s).
+func projectOpts(opts deployOptions) []composecli.ProjectOptionsFn {
+	projectOpts := []composecli.ProjectOptionsFn{}
+
+	if len(opts.profiles) > 0 {
+		projectOpts = append(projectOpts, composecli.WithDefaultProfiles(opts.profiles...))
+	}
+
+	return projectOpts
+}
+
 // runDeploy parses the Compose file(s) and deploys the services.
 func runDeploy(ctx context.Context, uncli *cli.CLI, opts deployOptions) error {
-	project, err := compose.LoadProject(ctx, opts.files)
+	projectOpts := projectOpts(opts)
+
+	project, err := compose.LoadProject(ctx, opts.files, projectOpts...)
 	if err != nil {
 		return fmt.Errorf("load compose file(s): %w", err)
 	}
 
 	if len(opts.services) > 0 {
-		// TODO: handle dependencies properly.
-		project, err = project.WithSelectedServices(opts.services, types.IgnoreDependencies)
+		// Includes service dependencies by default. This is the default docker compose behavior.
+		project, err = project.WithSelectedServices(opts.services)
 		if err != nil {
 			return fmt.Errorf("select services: %w", err)
 		}
 	}
 
-	clusterClient, err := uncli.ConnectCluster(ctx, opts.cluster)
+	clusterClient, err := uncli.ConnectCluster(ctx, opts.context)
 	if err != nil {
 		return fmt.Errorf("connect to cluster: %w", err)
 	}
@@ -84,30 +103,8 @@ func runDeploy(ctx context.Context, uncli *cli.CLI, opts deployOptions) error {
 	}
 
 	fmt.Println("Deployment plan:")
-
-	for _, op := range plan.Operations {
-		svcPlan, ok := op.(*deploy.Plan)
-		if !ok {
-			return fmt.Errorf("expected service Plan, got: %T", op)
-		}
-
-		svc, err := clusterClient.InspectService(ctx, svcPlan.ServiceID)
-		if err != nil {
-			if !errors.Is(err, api.ErrNotFound) {
-				return fmt.Errorf("inspect service: %w", err)
-			}
-			fmt.Printf("- Run service [name=%s]\n", svcPlan.ServiceName)
-		} else {
-			fmt.Printf("- Update service [name=%s]\n", svc.Name)
-		}
-
-		// Initialise a machine and container name resolver to properly format the service plan output.
-		resolver, err := clusterClient.ServiceOperationNameResolver(ctx, svc)
-		if err != nil {
-			return fmt.Errorf("create machine and container name resolver for service operations: %w", err)
-		}
-
-		fmt.Println(indent(svcPlan.Format(resolver), "  "))
+	if err = printPlan(ctx, clusterClient, plan); err != nil {
+		return fmt.Errorf("print deployment plan: %w", err)
 	}
 	fmt.Println()
 
@@ -128,6 +125,31 @@ func runDeploy(ctx context.Context, uncli *cli.CLI, opts deployOptions) error {
 	}, uncli.ProgressOut(), "Deploying services")
 }
 
+func printPlan(ctx context.Context, cli *client.Client, plan deploy.SequenceOperation) error {
+	for _, op := range plan.Operations {
+		svcPlan, ok := op.(*deploy.Plan)
+		if !ok {
+			fmt.Println("- " + op.Format(nil))
+			continue
+		}
+
+		svc, err := cli.InspectService(ctx, svcPlan.ServiceID)
+		if err != nil && !errors.Is(err, api.ErrNotFound) {
+			return fmt.Errorf("inspect service: %w", err)
+		}
+		// Initialise a machine and container name resolver to properly format the service plan output.
+		resolver, err := cli.ServiceOperationNameResolver(ctx, svc)
+		if err != nil {
+			return fmt.Errorf("create machine and container name resolver for service operations: %w", err)
+		}
+
+		fmt.Printf("- Deploy service [name=%s]\n", svcPlan.ServiceName)
+		fmt.Println(indent(svcPlan.Format(resolver), "  "))
+	}
+
+	return nil
+}
+
 func indent(text, prefix string) string {
 	lines := strings.Split(text, "\n")
 	for i, line := range lines {

cmd/uncloud/dns/release.go

@@ -4,15 +4,16 @@ import (
 	"context"
 	"errors"
 	"fmt"
+
+	"github.com/psviderski/uncloud/internal/cli"
 	"github.com/spf13/cobra"
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/status"
 	"google.golang.org/protobuf/types/known/emptypb"
-	"github.com/psviderski/uncloud/internal/cli"
 )
 
 type releaseOptions struct {
-	cluster string
+	context string
 }
 
 func NewReleaseCommand() *cobra.Command {
@@ -28,15 +29,15 @@ func NewReleaseCommand() *cobra.Command {
 	}
 
 	cmd.Flags().StringVarP(
-		&opts.cluster, "cluster", "c", "",
-		"Name of the cluster. (default is the current cluster)",
+		&opts.context, "context", "c", "",
+		"Name of the cluster context. (default is the current context)",
 	)
 
 	return cmd
 }
 
 func release(ctx context.Context, uncli *cli.CLI, opts releaseOptions) error {
-	client, err := uncli.ConnectCluster(ctx, opts.cluster)
+	client, err := uncli.ConnectCluster(ctx, opts.context)
 	if err != nil {
 		return fmt.Errorf("connect to cluster: %w", err)
 	}

cmd/uncloud/dns/reserve.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"errors"
 	"fmt"
+
 	"github.com/psviderski/uncloud/cmd/uncloud/caddy"
 	"github.com/psviderski/uncloud/internal/cli"
 	"github.com/psviderski/uncloud/internal/machine/api/pb"
@@ -18,7 +19,7 @@ const DefaultUncloudDNSAPIEndpoint = "https://dns.uncloud.run/v1"
 
 type reserveOptions struct {
 	endpoint string
-	cluster  string
+	context  string
 }
 
 func NewReserveCommand() *cobra.Command {
@@ -36,15 +37,15 @@ func NewReserveCommand() *cobra.Command {
 	cmd.Flags().StringVar(&opts.endpoint, "endpoint", DefaultUncloudDNSAPIEndpoint,
 		"API endpoint for the Uncloud DNS service.")
 	cmd.Flags().StringVarP(
-		&opts.cluster, "cluster", "c", "",
-		"Name of the cluster. (default is the current cluster)",
+		&opts.context, "context", "c", "",
+		"Name of the cluster context. (default is the current context)",
 	)
 
 	return cmd
 }
 
 func reserve(ctx context.Context, uncli *cli.CLI, opts reserveOptions) error {
-	clusterClient, err := uncli.ConnectCluster(ctx, opts.cluster)
+	clusterClient, err := uncli.ConnectCluster(ctx, opts.context)
 	if err != nil {
 		return fmt.Errorf("connect to cluster: %w", err)
 	}

cmd/uncloud/dns/show.go

@@ -4,13 +4,14 @@ import (
 	"context"
 	"errors"
 	"fmt"
+
 	"github.com/psviderski/uncloud/internal/cli"
 	"github.com/psviderski/uncloud/pkg/api"
 	"github.com/spf13/cobra"
 )
 
 type showOptions struct {
-	cluster string
+	context string
 }
 
 func NewShowCommand() *cobra.Command {
@@ -26,15 +27,15 @@ func NewShowCommand() *cobra.Command {
 	}
 
 	cmd.Flags().StringVarP(
-		&opts.cluster, "cluster", "c", "",
-		"Name of the cluster. (default is the current cluster)",
+		&opts.context, "context", "c", "",
+		"Name of the cluster context. (default is the current context)",
 	)
 
 	return cmd
 }
 
 func show(ctx context.Context, uncli *cli.CLI, opts showOptions) error {
-	clusterClient, err := uncli.ConnectCluster(ctx, opts.cluster)
+	clusterClient, err := uncli.ConnectCluster(ctx, opts.context)
 	if err != nil {
 		return fmt.Errorf("connect to cluster: %w", err)
 	}

cmd/uncloud/machine/add.go

@@ -4,20 +4,19 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"net/netip"
+	"time"
+
 	"github.com/cenkalti/backoff/v4"
 	"github.com/docker/compose/v2/pkg/progress"
 	"github.com/psviderski/uncloud/cmd/uncloud/caddy"
 	"github.com/psviderski/uncloud/internal/cli"
 	"github.com/psviderski/uncloud/internal/cli/config"
-	"github.com/psviderski/uncloud/internal/machine/api/pb"
 	"github.com/psviderski/uncloud/pkg/api"
 	"github.com/psviderski/uncloud/pkg/client"
 	"github.com/spf13/cobra"
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/status"
-	"google.golang.org/protobuf/types/known/emptypb"
-	"net/netip"
-	"time"
 )
 
 type addOptions struct {
@@ -25,7 +24,8 @@ type addOptions struct {
 	noCaddy  bool
 	publicIP string
 	sshKey   string
-	cluster  string
+	context  string
+	version  string
 }
 
 func NewAddCommand() *cobra.Command {
@@ -65,10 +65,15 @@ func NewAddCommand() *cobra.Command {
 		&opts.sshKey, "ssh-key", "i", "",
 		"path to SSH private key for SSH remote login. (default ~/.ssh/id_*)",
 	)
-	cmd.Flags().StringVarP(
-		&opts.cluster, "cluster", "c", "",
-		"Name of the cluster to add the machine to. (default is the current cluster)",
+	cmd.Flags().StringVar(
+		&opts.version, "version", "latest",
+		"Version of the Uncloud daemon to install on the machine.",
 	)
+	cmd.Flags().StringVarP(
+		&opts.context, "context", "c", "",
+		"Name of the cluster context to add the machine to. (default is the current context)",
+	)
+
 	return cmd
 }
 
@@ -87,7 +92,13 @@ func add(ctx context.Context, uncli *cli.CLI, remoteMachine cli.RemoteMachine, o
 		publicIP = &ip
 	}
 
-	machineClient, err := uncli.AddMachine(ctx, remoteMachine, opts.cluster, opts.name, publicIP)
+	machineClient, err := uncli.AddMachine(ctx, cli.AddMachineOptions{
+		Context:       opts.context,
+		MachineName:   opts.name,
+		PublicIP:      publicIP,
+		RemoteMachine: remoteMachine,
+		Version:       opts.version,
+	})
 	if err != nil {
 		return err
 	}
@@ -104,14 +115,6 @@ func add(ctx context.Context, uncli *cli.CLI, remoteMachine cli.RemoteMachine, o
 		return fmt.Errorf("wait for cluster to be initialised on machine: %w", err)
 	}
 
-	// Inspect the added machine to get its ID to create a filter for the Caddy deployment.
-	minfo, err := machineClient.Inspect(ctx, &emptypb.Empty{})
-	if err != nil {
-		return fmt.Errorf("inspect machine: %w", err)
-	}
-	filter := func(m *pb.MachineInfo) bool {
-		return m.Id == minfo.Id
-	}
 	// Deploy a Caddy service container to the added machine. If caddy service is already deployed on other machines,
 	// use the deployed image version. Otherwise, use the latest version.
 	caddyImage := ""
@@ -136,7 +139,9 @@ func add(ctx context.Context, uncli *cli.CLI, remoteMachine cli.RemoteMachine, o
 		}
 	}
 
-	d, err := machineClient.NewCaddyDeployment(caddyImage, filter)
+	// TODO: scale the existing Caddy service to the new machine instead of running a new deployment
+	//  that may cause a small downtime.
+	d, err := machineClient.NewCaddyDeployment(caddyImage, api.Placement{})
 	if err != nil {
 		return fmt.Errorf("create caddy deployment: %w", err)
 	}
@@ -162,7 +167,7 @@ func waitClusterInitialised(ctx context.Context, client *client.Client) error {
 	), ctx)
 
 	check := func() error {
-		_, err := client.ListMachines(ctx)
+		_, err := client.ListMachines(ctx, nil)
 		if err == nil {
 			return nil
 		}

cmd/uncloud/machine/init.go

@@ -3,6 +3,8 @@ package machine
 import (
 	"context"
 	"fmt"
+	"net/netip"
+
 	"github.com/docker/compose/v2/pkg/progress"
 	"github.com/psviderski/uncloud/cmd/uncloud/caddy"
 	"github.com/psviderski/uncloud/cmd/uncloud/dns"
@@ -10,8 +12,8 @@ import (
 	"github.com/psviderski/uncloud/internal/cli/config"
 	"github.com/psviderski/uncloud/internal/machine/api/pb"
 	"github.com/psviderski/uncloud/internal/machine/cluster"
+	"github.com/psviderski/uncloud/pkg/api"
 	"github.com/spf13/cobra"
-	"net/netip"
 )
 
 type initOptions struct {
@@ -22,15 +24,17 @@ type initOptions struct {
 	noDNS       bool
 	publicIP    string
 	sshKey      string
-	cluster     string
+	version     string
+	context     string
 }
 
 func NewInitCommand() *cobra.Command {
 	opts := initOptions{}
 	cmd := &cobra.Command{
 		Use:   "init [USER@HOST:PORT]",
-		Short: "Initialise a new cluster that consists of the local or remote machine.",
-		// TODO: include usage examples of initialising a local and remote machine.
+		Short: "Initialise a new cluster with a remote machine as the first member.",
+		// TODO: include usage examples of initialising a remote machine.
+		// TODO: support initialising a cluster on the local machine.
 		Args: cobra.MaximumNArgs(1),
 		RunE: func(cmd *cobra.Command, args []string) error {
 			uncli := cmd.Context().Value("cli").(*cli.CLI)
@@ -79,9 +83,13 @@ func NewInitCommand() *cobra.Command {
 		&opts.sshKey, "ssh-key", "i", "",
 		"Path to SSH private key for SSH remote login. (default ~/.ssh/id_*)",
 	)
+	cmd.Flags().StringVar(
+		&opts.version, "version", "latest",
+		"Version of the Uncloud daemon to install on the machine.",
+	)
 	cmd.Flags().StringVarP(
-		&opts.cluster, "cluster", "c", "",
-		"Name of the cluster in the local config if initialising a remote machine.",
+		&opts.context, "context", "c", "default",
+		"Name of the created context for the initialised cluster in the Uncloud config.",
 	)
 
 	return cmd
@@ -106,8 +114,15 @@ func initCluster(ctx context.Context, uncli *cli.CLI, remoteMachine *cli.RemoteM
 		}
 		publicIP = &ip
 	}
-
-	client, err := uncli.InitCluster(ctx, remoteMachine, opts.cluster, opts.name, netPrefix, publicIP)
+	
+	client, err := uncli.InitCluster(ctx, cli.InitClusterOptions{
+		Context:       opts.context,
+		MachineName:   opts.name,
+		Network:       netPrefix,
+		PublicIP:      publicIP,
+		RemoteMachine: remoteMachine,
+		Version:       opts.version,
+	})
 	if err != nil {
 		return err
 	}
@@ -132,7 +147,7 @@ func initCluster(ctx context.Context, uncli *cli.CLI, remoteMachine *cli.RemoteM
 	}
 
 	if !opts.noCaddy {
-		d, err := client.NewCaddyDeployment("", nil)
+		d, err := client.NewCaddyDeployment("", api.Placement{})
 		if err != nil {
 			return fmt.Errorf("create caddy deployment: %w", err)
 		}

cmd/uncloud/machine/ls.go

@@ -3,29 +3,30 @@ package machine
 import (
 	"context"
 	"fmt"
-	"github.com/spf13/cobra"
 	"net/netip"
 	"os"
 	"strings"
 	"text/tabwriter"
+
 	"github.com/psviderski/uncloud/internal/cli"
 	"github.com/psviderski/uncloud/internal/machine/network"
+	"github.com/spf13/cobra"
 )
 
 func NewListCommand() *cobra.Command {
-	var cluster string
+	var clusterContext string
 	cmd := &cobra.Command{
 		Use:     "ls",
 		Aliases: []string{"list"},
 		Short:   "List machines in a cluster.",
 		RunE: func(cmd *cobra.Command, args []string) error {
 			uncli := cmd.Context().Value("cli").(*cli.CLI)
-			return list(cmd.Context(), uncli, cluster)
+			return list(cmd.Context(), uncli, clusterContext)
 		},
 	}
 	cmd.Flags().StringVarP(
-		&cluster, "cluster", "c", "",
-		"Name of the cluster. (default is the current cluster)",
+		&clusterContext, "context", "c", "",
+		"Name of the cluster context. (default is the current context)",
 	)
 	return cmd
 }
@@ -37,7 +38,7 @@ func list(ctx context.Context, uncli *cli.CLI, clusterName string) error {
 	}
 	defer client.Close()
 
-	machines, err := client.ListMachines(ctx)
+	machines, err := client.ListMachines(ctx, nil)
 	if err != nil {
 		return fmt.Errorf("list machines: %w", err)
 	}

cmd/uncloud/main.go

@@ -7,12 +7,15 @@ import (
 	"strings"
 
 	"github.com/psviderski/uncloud/cmd/uncloud/caddy"
+	cmdcontext "github.com/psviderski/uncloud/cmd/uncloud/context"
 	"github.com/psviderski/uncloud/cmd/uncloud/dns"
 	"github.com/psviderski/uncloud/cmd/uncloud/machine"
 	"github.com/psviderski/uncloud/cmd/uncloud/service"
+	"github.com/psviderski/uncloud/cmd/uncloud/volume"
 	"github.com/psviderski/uncloud/internal/cli"
 	"github.com/psviderski/uncloud/internal/cli/config"
 	"github.com/psviderski/uncloud/internal/fs"
+	"github.com/psviderski/uncloud/internal/version"
 	"github.com/spf13/cobra"
 )
 
@@ -26,6 +29,7 @@ func main() {
 	cmd := &cobra.Command{
 		Use:           "uncloud",
 		Short:         "A CLI tool for managing Uncloud resources such as clusters, machines, and services.",
+		Version:       version.String(),
 		SilenceUsage:  true,
 		SilenceErrors: true,
 		PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
@@ -37,7 +41,7 @@ func main() {
 						return fmt.Errorf("parse TCP address: %w", err)
 					}
 					conn = &config.MachineConnection{
-						TCP: addrPort,
+						TCP: &addrPort,
 					}
 				} else {
 					dest := opts.connect
@@ -53,7 +57,7 @@ func main() {
 			configPath := fs.ExpandHomeDir(opts.configPath)
 			uncli, err := cli.New(configPath, conn)
 			if err != nil {
-				return fmt.Errorf("initialize CLI: %w", err)
+				return fmt.Errorf("initialise CLI: %w", err)
 			}
 			cmd.SetContext(context.WithValue(cmd.Context(), "cli", uncli))
 			return nil
@@ -64,13 +68,15 @@ func main() {
 		"Connect to a remote cluster machine without using the Uncloud configuration file.\n"+
 			"Format: [ssh://]user@host[:port] or tcp://host:port")
 	// TODO: allow to override using UNCLOUD_CONFIG env var.
-	cmd.PersistentFlags().StringVar(&opts.configPath, "uncloud-config", "~/.config/uncloud/config.toml",
+	cmd.PersistentFlags().StringVar(&opts.configPath, "uncloud-config", "~/.config/uncloud/config.yaml",
 		"Path to the Uncloud configuration file.")
-	_ = cmd.MarkPersistentFlagFilename("uncloud-config", "toml")
+	_ = cmd.MarkPersistentFlagFilename("uncloud-config", "yaml", "yml")
+	// TODO: make --context a global flag and pass it as a value of the command context.
 
 	cmd.AddCommand(
 		NewDeployCommand(),
 		caddy.NewRootCommand(),
+		cmdcontext.NewRootCommand(),
 		dns.NewRootCommand(),
 		machine.NewRootCommand(),
 		service.NewRootCommand(),
@@ -79,6 +85,7 @@ func main() {
 		service.NewRmCommand(),
 		service.NewRunCommand(),
 		service.NewScaleCommand(),
+		volume.NewRootCommand(),
 	)
 	cobra.CheckErr(cmd.Execute())
 }

cmd/uncloud/service/inspect.go

@@ -3,14 +3,15 @@ package service
 import (
 	"context"
 	"fmt"
-	"github.com/docker/docker/pkg/stringid"
-	"github.com/docker/go-units"
 	"os"
 	"text/tabwriter"
 	"time"
 
-	"github.com/spf13/cobra"
+	"github.com/docker/docker/pkg/stringid"
+	"github.com/docker/go-units"
+
 	"github.com/psviderski/uncloud/internal/cli"
+	"github.com/spf13/cobra"
 )
 
 type inspectOptions struct {
@@ -31,8 +32,8 @@ func NewInspectCommand() *cobra.Command {
 		},
 	}
 	cmd.Flags().StringVarP(
-		&opts.cluster, "cluster", "c", "",
-		"Name of the cluster. (default is the current cluster)",
+		&opts.cluster, "context", "c", "",
+		"Name of the cluster context. (default is the current context)",
 	)
 	return cmd
 }
@@ -49,7 +50,7 @@ func inspect(ctx context.Context, uncli *cli.CLI, opts inspectOptions) error {
 		return fmt.Errorf("inspect service: %w", err)
 	}
 
-	machines, err := client.ListMachines(ctx)
+	machines, err := client.ListMachines(ctx, nil)
 	if err != nil {
 		return fmt.Errorf("list machines: %w", err)
 	}

cmd/uncloud/service/ls.go

@@ -3,14 +3,16 @@ package service
 import (
 	"context"
 	"fmt"
-	"github.com/psviderski/uncloud/internal/cli"
-	"github.com/spf13/cobra"
 	"os"
 	"strings"
 	"text/tabwriter"
+
+	"github.com/psviderski/uncloud/internal/cli"
+	"github.com/spf13/cobra"
 )
 
 func NewListCommand() *cobra.Command {
+	// TODO(lhf): rename to context
 	var cluster string
 	cmd := &cobra.Command{
 		Use:     "ls",
@@ -22,8 +24,8 @@ func NewListCommand() *cobra.Command {
 		},
 	}
 	cmd.Flags().StringVarP(
-		&cluster, "cluster", "c", "",
-		"Name of the cluster. (default is the current cluster)",
+		&cluster, "context", "c", "",
+		"Name of the cluster context. (default is the current context)",
 	)
 	return cmd
 }

cmd/uncloud/service/rm.go

@@ -3,11 +3,10 @@ package service
 import (
 	"context"
 	"fmt"
-	"github.com/docker/cli/cli/streams"
+
 	"github.com/docker/compose/v2/pkg/progress"
 	"github.com/psviderski/uncloud/internal/cli"
 	"github.com/spf13/cobra"
-	"os"
 )
 
 type rmOptions struct {
@@ -29,8 +28,8 @@ func NewRmCommand() *cobra.Command {
 		},
 	}
 	cmd.Flags().StringVarP(
-		&opts.cluster, "cluster", "c", "",
-		"Name of the cluster. (default is the current cluster)",
+		&opts.cluster, "context", "c", "",
+		"Name of the cluster context. (default is the current context)",
 	)
 	return cmd
 }
@@ -48,7 +47,7 @@ func rm(ctx context.Context, uncli *cli.CLI, opts rmOptions) error {
 				return fmt.Errorf("remove service '%s': %w", s, err)
 			}
 			return nil
-		}, streams.NewOut(os.Stdout), "Removing service "+s)
+		}, uncli.ProgressOut(), "Removing service "+s)
 	}
 
 	return nil

cmd/uncloud/service/root.go

@@ -6,8 +6,9 @@ import (
 
 func NewRootCommand() *cobra.Command {
 	cmd := &cobra.Command{
-		Use:   "service",
-		Short: "Manage services in an Uncloud cluster.",
+		Use:     "service",
+		Aliases: []string{"svc"},
+		Short:   "Manage services in an Uncloud cluster.",
 	}
 	cmd.AddCommand(
 		NewInspectCommand(),

cmd/uncloud/service/run.go

@@ -3,26 +3,35 @@ package service
 import (
 	"context"
 	"fmt"
+	"os"
+	"strings"
+
+	dockeropts "github.com/docker/cli/opts"
+	"github.com/docker/compose/v2/pkg/progress"
+	"github.com/docker/docker/daemon/names"
 	"github.com/psviderski/uncloud/internal/cli"
-	"github.com/psviderski/uncloud/internal/machine/api/pb"
+	"github.com/psviderski/uncloud/internal/secret"
 	"github.com/psviderski/uncloud/pkg/api"
 	"github.com/psviderski/uncloud/pkg/client/deploy"
 	"github.com/spf13/cobra"
-	"slices"
-	"strings"
 )
 
 type runOptions struct {
 	command           []string
+	cpu               dockeropts.NanoCPUs
 	entrypoint        string
 	entrypointChanged bool
+	env               []string
 	image             string
 	machines          []string
+	memory            dockeropts.MemBytes
 	mode              string
 	name              string
+	privileged        bool
 	publish           []string
 	pull              string
 	replicas          uint
+	user              string
 	volumes           []string
 
 	cluster string
@@ -48,22 +57,34 @@ func NewRunCommand() *cobra.Command {
 		},
 	}
 
+	cmd.Flags().VarP(&opts.cpu, "cpu", "",
+		"Maximum number of CPU cores a service container can use. Fractional values are allowed: "+
+			"0.5 for half a core or 2.25 for two and a quarter cores.")
 	cmd.Flags().StringVar(&opts.entrypoint, "entrypoint", "",
 		"Overwrite the default ENTRYPOINT of the image. Pass an empty string \"\" to reset it.")
+	cmd.Flags().StringSliceVarP(&opts.env, "env", "e", nil,
+		"Set an environment variable for service containers. Can be specified multiple times.\n"+
+			"Format: VAR=value or just VAR to use the value from the local environment.")
 	cmd.Flags().StringVar(&opts.mode, "mode", api.ServiceModeReplicated,
 		fmt.Sprintf("Replication mode of the service: either '%s' (a specified number of containers across "+
 			"the machines) or '%s' (one container on every machine).",
 			api.ServiceModeReplicated, api.ServiceModeGlobal))
 	cmd.Flags().StringSliceVarP(&opts.machines, "machine", "m", nil,
-		"Placement constraint by machine name, limiting which machines the service can run on. Can be specified "+
+		"Placement constraint by machine names, limiting which machines the service can run on. Can be specified "+
 			"multiple times or as a comma-separated list of machine names. (default is any suitable machine)")
+	cmd.Flags().VarP(&opts.memory, "memory", "",
+		"Maximum amount of memory a service container can use. Value is a positive integer with optional unit suffix "+
+			"(b, k, m, g). Default unit is bytes if no suffix specified.\n"+
+			"Examples: 1073741824, 1024m, 1g (all equal 1 gibibyte)")
 	cmd.Flags().StringVarP(&opts.name, "name", "n", "",
 		"Assign a name to the service. A random name is generated if not specified.")
+	cmd.Flags().BoolVar(&opts.privileged, "privileged", false,
+		"Give extended privileges to service containers. This is a security risk and should be used with caution.")
 	cmd.Flags().StringSliceVarP(&opts.publish, "publish", "p", nil,
 		"Publish a service port to make it accessible outside the cluster. Can be specified multiple times.\n"+
 			"Format: [hostname:][load_balancer_port:]container_port[/protocol] or [host_ip:]:host_port:container_port[/protocol]@host\n"+
-			"Supported protocols: tcp, udp, http, https (default is tcp). If a hostname for http(s) port is not specified,\n"+
-			"service-name.cluster-domain will be used as the hostname.\n"+
+			"Supported protocols: tcp, udp, http, https (default is tcp). If a hostname for http(s) port is not specified\n"+
+			"and a cluster domain is reserved, service-name.cluster-domain will be used as the hostname.\n"+
 			"Examples:\n"+
 			"  -p 8080/https                  Publish port 8080 as HTTPS via load balancer with default service-name.cluster-domain hostname\n"+
 			"  -p app.example.com:8080/https  Publish port 8080 as HTTPS via load balancer with custom hostname\n"+
@@ -74,86 +95,30 @@ func NewRunCommand() *cobra.Command {
 			api.PullPolicyAlways, api.PullPolicyMissing, api.PullPolicyNever))
 	cmd.Flags().UintVar(&opts.replicas, "replicas", 1,
 		"Number of containers to run for the service. Only valid for a replicated service.")
+	cmd.Flags().StringVarP(&opts.user, "user", "u", "",
+		"User name or UID and optionally group name or GID used for running the command inside service containers.\n"+
+			"Format: USER[:GROUP] or UID[:GID]. If not specified, the user is set to the default user of the image.")
 	cmd.Flags().StringSliceVarP(&opts.volumes, "volume", "v", nil,
-		"Bind mount a host file or directory into a service container using the format "+
-			"/host/path:/container/path[:ro]. Can be specified multiple times.")
+		"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"+
+			"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"+
+			"  -v /host/path:/container/path:ro 		 Bind mount a host directory or file as read-only")
 
 	cmd.Flags().StringVarP(
-		&opts.cluster, "cluster", "c", "",
-		"Name of the cluster to run the service in. (default is the current cluster)",
+		&opts.cluster, "context", "c", "",
+		"Name of the cluster context to run the service in. (default is the current context)",
 	)
 
 	return cmd
 }
 
 func run(ctx context.Context, uncli *cli.CLI, opts runOptions) error {
-	switch opts.mode {
-	case api.ServiceModeReplicated, api.ServiceModeGlobal:
-	default:
-		return fmt.Errorf("invalid replication mode: '%s'", opts.mode)
-	}
-
-	switch opts.pull {
-	case api.PullPolicyAlways, api.PullPolicyMissing, api.PullPolicyNever:
-	default:
-		return fmt.Errorf("invalid pull policy: '%s'", opts.pull)
-	}
-
-	var machineFilter deploy.MachineFilter
-	if len(opts.machines) > 0 {
-		var machines []string
-		for _, value := range opts.machines {
-			if value == "" {
-				continue
-			}
-
-			mlist := strings.Split(value, ",")
-			for _, m := range mlist {
-				if m = strings.TrimSpace(m); m != "" {
-					machines = append(machines, m)
-				}
-			}
-		}
-
-		if len(machines) > 0 {
-			machineFilter = func(m *pb.MachineInfo) bool {
-				return slices.Contains(machines, m.Name)
-			}
-		}
-	}
-
-	ports := make([]api.PortSpec, len(opts.publish))
-	for i, publishPort := range opts.publish {
-		port, err := api.ParsePortSpec(publishPort)
-		if err != nil {
-			return fmt.Errorf("invalid service port '%s': %w", publishPort, err)
-		}
-		ports[i] = port
-	}
-	// TODO: parse and validate opts.volumes to fail fast if invalid.
-
-	spec := api.ServiceSpec{
-		Container: api.ContainerSpec{
-			Command:    opts.command,
-			Image:      opts.image,
-			PullPolicy: opts.pull,
-			Volumes:    opts.volumes,
-		},
-		Mode:     opts.mode,
-		Name:     opts.name,
-		Ports:    ports,
-		Replicas: opts.replicas,
-	}
-
-	// Overwrite the default ENTRYPOINT of the image or reset it if an empty string is passed.
-	if opts.entrypoint != "" {
-		spec.Container.Entrypoint = []string{opts.entrypoint}
-	} else if opts.entrypointChanged {
-		spec.Container.Entrypoint = []string{""}
-	}
-
-	if err := spec.Validate(); err != nil {
-		return fmt.Errorf("invalid service configuration: %w", err)
+	spec, err := prepareServiceSpec(opts)
+	if err != nil {
+		return err
 	}
 
 	clusterClient, err := uncli.ConnectCluster(ctx, opts.cluster)
@@ -162,9 +127,17 @@ func run(ctx context.Context, uncli *cli.CLI, opts runOptions) error {
 	}
 	defer clusterClient.Close()
 
-	resp, err := clusterClient.RunService(ctx, spec, machineFilter)
+	var resp api.RunServiceResponse
+	err = progress.RunWithTitle(ctx, func(ctx context.Context) error {
+		resp, err = clusterClient.RunService(ctx, spec)
+		if err != nil {
+			return fmt.Errorf("run service: %w", err)
+		}
+
+		return nil
+	}, uncli.ProgressOut(), fmt.Sprintf("Running service %s (%s mode)", spec.Name, spec.Mode))
 	if err != nil {
-		return fmt.Errorf("run service: %w", err)
+		return err
 	}
 
 	svc, err := clusterClient.InspectService(ctx, resp.ID)
@@ -183,3 +156,207 @@ func run(ctx context.Context, uncli *cli.CLI, opts runOptions) error {
 
 	return nil
 }
+
+func prepareServiceSpec(opts runOptions) (api.ServiceSpec, error) {
+	var spec api.ServiceSpec
+
+	env, err := parseEnv(opts.env)
+	if err != nil {
+		return spec, err
+	}
+
+	switch opts.mode {
+	case api.ServiceModeReplicated, api.ServiceModeGlobal:
+	default:
+		return spec, fmt.Errorf("invalid replication mode: '%s'", opts.mode)
+	}
+
+	switch opts.pull {
+	case api.PullPolicyAlways, api.PullPolicyMissing, api.PullPolicyNever:
+	default:
+		return spec, fmt.Errorf("invalid pull policy: '%s'", opts.pull)
+	}
+
+	ports := make([]api.PortSpec, len(opts.publish))
+	for i, publishPort := range opts.publish {
+		port, err := api.ParsePortSpec(publishPort)
+		if err != nil {
+			return spec, fmt.Errorf("invalid service port '%s': %w", publishPort, err)
+		}
+		ports[i] = port
+	}
+
+	volumes, mounts, err := parseVolumeFlags(opts.volumes)
+	if err != nil {
+		return spec, err
+	}
+
+	placement := api.Placement{
+		Machines: cli.ExpandCommaSeparatedValues(opts.machines),
+	}
+
+	spec = api.ServiceSpec{
+		Container: api.ContainerSpec{
+			Command:    opts.command,
+			Env:        env,
+			Image:      opts.image,
+			Privileged: opts.privileged,
+			PullPolicy: opts.pull,
+			Resources: api.ContainerResources{
+				CPU:    opts.cpu.Value(),
+				Memory: opts.memory.Value(),
+			},
+			User:         opts.user,
+			VolumeMounts: mounts,
+		},
+		Mode:      opts.mode,
+		Name:      opts.name,
+		Placement: placement,
+		Ports:     ports,
+		Replicas:  opts.replicas,
+		Volumes:   volumes,
+	}
+
+	// Overwrite the default ENTRYPOINT of the image or reset it if an empty string is passed.
+	if opts.entrypoint != "" {
+		spec.Container.Entrypoint = []string{opts.entrypoint}
+	} else if opts.entrypointChanged {
+		spec.Container.Entrypoint = []string{""}
+	}
+
+	if err = spec.Validate(); err != nil {
+		return spec, fmt.Errorf("invalid service configuration: %w", err)
+	}
+
+	// Generate a service name if not specified to be able to include it in the progress title.
+	if spec.Name == "" {
+		spec.Name, err = deploy.GenerateServiceName(spec.Container.Image)
+		if err != nil {
+			return spec, fmt.Errorf("generate service name: %w", err)
+		}
+	}
+
+	return spec, err
+}
+
+// parseEnv parses the environment variables from the command line arguments.
+// It supports two formats: "VAR=value" or just "VAR" to use the value from the local environment.
+func parseEnv(env []string) (api.EnvVars, error) {
+	envVars := make(api.EnvVars)
+	for _, e := range env {
+		key, value, hasValue := strings.Cut(e, "=")
+		if key == "" {
+			return nil, fmt.Errorf("invalid environment variable: '%s'", e)
+		}
+
+		if hasValue {
+			envVars[key] = value
+		} else {
+			if localEnvValue, ok := os.LookupEnv(key); ok {
+				envVars[key] = localEnvValue
+			}
+		}
+	}
+
+	return envVars, nil
+}
+
+// parseVolumeFlags parses volume flag values in Docker CLI format and returns VolumeSpecs and VolumeMounts.
+// It handles both named volumes (volume_name:/container/path[:ro|volume-nocopy])
+// and bind mounts (/host/path:/container/path[:ro]).
+func parseVolumeFlags(volumes []string) ([]api.VolumeSpec, []api.VolumeMount, error) {
+	specs := make([]api.VolumeSpec, 0, len(volumes))
+	mounts := make([]api.VolumeMount, 0, len(volumes))
+
+	// Track volume names to avoid duplicate specs.
+	seenVolumes := make(map[string]struct{})
+
+	for _, vol := range volumes {
+		spec, mount, err := parseVolumeFlagValue(vol)
+		if err != nil {
+			return nil, nil, fmt.Errorf("invalid volume mount '%s': %w", vol, err)
+		}
+
+		if _, ok := seenVolumes[spec.Name]; !ok {
+			specs = append(specs, spec)
+			seenVolumes[spec.Name] = struct{}{}
+		}
+
+		mounts = append(mounts, mount)
+	}
+
+	return specs, mounts, nil
+}
+
+func parseVolumeFlagValue(volume string) (api.VolumeSpec, api.VolumeMount, error) {
+	var spec api.VolumeSpec
+	var mount api.VolumeMount
+
+	parts := strings.Split(volume, ":")
+	switch len(parts) {
+	case 1:
+		return spec, mount, fmt.Errorf("invalid format, must contain at least one separator ':'")
+	case 2, 3:
+		// Format: (volume_name|/host/path):/container/path[:opts]
+		if !strings.HasPrefix(parts[1], "/") {
+			return spec, mount, fmt.Errorf("invalid container mount path: '%s', must be absolute path", parts[1])
+		}
+
+		mount.ContainerPath = parts[1]
+		volumeNoCopy := false
+
+		if len(parts) == 3 {
+			opts := strings.Split(parts[2], ",")
+			for _, opt := range opts {
+				switch opt {
+				case "ro", "readonly":
+					mount.ReadOnly = true
+				case "volume-nocopy":
+					volumeNoCopy = true
+				default:
+					return spec, mount, fmt.Errorf("invalid option: '%s'", opt)
+				}
+			}
+		}
+
+		if strings.HasPrefix(parts[0], "/") {
+			// Host path bind mount: /host/path:/container/path
+			suffix, err := secret.RandomAlphaNumeric(4)
+			if err != nil {
+				return spec, mount, fmt.Errorf("generate random suffix: %w", err)
+			}
+
+			spec = api.VolumeSpec{
+				Name: "bind-" + suffix,
+				Type: api.VolumeTypeBind,
+				BindOptions: &api.BindOptions{
+					HostPath:       parts[0],
+					CreateHostPath: true,
+				},
+			}
+		} else {
+			// Named volume mount: volume_name:/container/path
+			volumeName := parts[0]
+			if !names.RestrictedNamePattern.MatchString(volumeName) {
+				return spec, mount, fmt.Errorf("volume name '%s' includes invalid characters, only '%s' are allowed. "+
+					"If you intended to pass a host directory or file, use absolute path",
+					volumeName, names.RestrictedNameChars)
+			}
+
+			spec = api.VolumeSpec{
+				Name: volumeName,
+				Type: api.VolumeTypeVolume,
+				VolumeOptions: &api.VolumeOptions{
+					Name:   volumeName,
+					NoCopy: volumeNoCopy,
+				},
+			}
+		}
+
+		mount.VolumeName = spec.Name
+	default:
+		return spec, mount, fmt.Errorf("invalid format, must container at most 2 separators ':'")
+	}
+
+	return spec, mount, nil
+}

cmd/uncloud/service/scale.go

@@ -40,8 +40,8 @@ func NewScaleCommand() *cobra.Command {
 	}
 
 	cmd.Flags().StringVarP(
-		&opts.cluster, "cluster", "c", "",
-		"Name of the cluster. (default is the current cluster)",
+		&opts.cluster, "context", "c", "",
+		"Name of the cluster context. (default is the current context)",
 	)
 
 	return cmd
@@ -143,7 +143,7 @@ func confirm() (bool, error) {
 				Negative("No").
 				Value(&confirmed),
 		),
-	)
+	).WithAccessible(true)
 	if err := form.Run(); err != nil {
 		return false, err
 	}

cmd/uncloud/volume/create.go

@@ -0,0 +1,148 @@
+package volume
+
+import (
+	"context"
+	"fmt"
+	"slices"
+	"strings"
+
+	"github.com/charmbracelet/huh"
+	"github.com/docker/docker/api/types/volume"
+	"github.com/psviderski/uncloud/internal/cli"
+	"github.com/psviderski/uncloud/internal/machine/api/pb"
+	"github.com/psviderski/uncloud/pkg/api"
+	"github.com/spf13/cobra"
+)
+
+type createOptions struct {
+	driver     string
+	driverOpts []string
+	labels     []string
+	machine    string
+	context    string
+}
+
+func NewCreateCommand() *cobra.Command {
+	opts := createOptions{}
+
+	cmd := &cobra.Command{
+		Use:   "create [FLAGS] VOLUME_NAME",
+		Short: "Create a volume on a specific machine.",
+		Args:  cobra.ExactArgs(1),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			uncli := cmd.Context().Value("cli").(*cli.CLI)
+			opts.driver = strings.TrimSpace(opts.driver)
+
+			volumeName := args[0]
+			if volumeName == "" {
+				return fmt.Errorf("volume name is required")
+			}
+
+			return create(cmd.Context(), uncli, volumeName, opts)
+		},
+	}
+
+	cmd.Flags().StringVarP(&opts.driver, "driver", "d", "local",
+		"Volume driver to use.")
+	cmd.Flags().StringSliceVarP(&opts.driverOpts, "opt", "o", nil,
+		"Driver specific options in the form of 'key=value' pairs. Can be specified multiple times.")
+	cmd.Flags().StringSliceVarP(&opts.labels, "label", "l", nil,
+		"Labels to assign to the volume in the form of 'key=value' pairs. Can be specified multiple times.")
+	cmd.Flags().StringVarP(&opts.machine, "machine", "m", "",
+		"Name or ID of the machine to create the volume on.")
+	cmd.Flags().StringVarP(&opts.context, "context", "c", "",
+		"Name of the cluster context. (default is the current context)")
+
+	return cmd
+}
+
+func create(ctx context.Context, uncli *cli.CLI, name string, opts createOptions) error {
+	client, err := uncli.ConnectCluster(ctx, opts.context)
+	if err != nil {
+		return fmt.Errorf("connect to cluster: %w", err)
+	}
+	defer client.Close()
+
+	// Parse driver options.
+	driverOpts := make(map[string]string)
+	for _, opt := range opts.driverOpts {
+		k, v, ok := strings.Cut(opt, "=")
+		if !ok {
+			return fmt.Errorf("invalid driver option format: '%s' (expected key=value)", opt)
+		}
+		driverOpts[k] = v
+	}
+
+	// Parse labels.
+	labels := make(map[string]string)
+	for _, label := range opts.labels {
+		k, v, ok := strings.Cut(label, "=")
+		if !ok {
+			return fmt.Errorf("invalid label format: '%s' (expected key=value)", label)
+		}
+		labels[k] = v
+	}
+
+	// List machines and filter by the specified machine name or ID.
+	// If no machine is specified, prompt the user to select one.
+	machines, err := client.ListMachines(ctx, nil)
+	if err != nil {
+		return fmt.Errorf("list machines: %w", err)
+	}
+	var selectedMachine *pb.MachineInfo
+
+	if opts.machine == "" {
+		if len(machines) == 1 {
+			selectedMachine = machines[0].Machine
+		} else {
+			if selectedMachine, err = promptSelectMachine(ctx, machines); err != nil {
+				return fmt.Errorf("select machine: %w", err)
+			}
+		}
+	} else {
+		m := machines.FindByNameOrID(opts.machine)
+		if m == nil {
+			return fmt.Errorf("machine '%s' not found", opts.machine)
+		}
+		selectedMachine = m.Machine
+	}
+
+	createOpts := volume.CreateOptions{
+		Name:       name,
+		Driver:     opts.driver,
+		DriverOpts: driverOpts,
+		Labels:     labels,
+	}
+	vol, err := client.CreateVolume(ctx, selectedMachine.Id, createOpts)
+	if err != nil {
+		return fmt.Errorf("create volume '%s' on machine '%s': %w", name, selectedMachine.Name, err)
+	}
+
+	fmt.Printf("Volume '%s' created on machine '%s'.\n", vol.Volume.Name, vol.MachineName)
+	return nil
+}
+
+func promptSelectMachine(ctx context.Context, machines api.MachineMembersList) (*pb.MachineInfo, error) {
+	options := make([]huh.Option[*pb.MachineInfo], len(machines))
+	for i, m := range machines {
+		options[i] = huh.NewOption(m.Machine.Name, m.Machine)
+	}
+	slices.SortFunc(options, func(a, b huh.Option[*pb.MachineInfo]) int {
+		return strings.Compare(a.Key, b.Key)
+	})
+
+	var selected *pb.MachineInfo
+	form := huh.NewForm(
+		huh.NewGroup(
+			huh.NewSelect[*pb.MachineInfo]().
+				Title("Select a machine to create the volume on (or specify with --machine flag)").
+				Options(options...).
+				Value(&selected),
+		),
+	)
+	if err := form.RunWithContext(ctx); err != nil {
+		return nil, err
+	}
+
+	return selected, nil
+}

cmd/uncloud/volume/inspect.go

@@ -0,0 +1,81 @@
+package volume
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+
+	"github.com/psviderski/uncloud/internal/cli"
+	"github.com/psviderski/uncloud/pkg/api"
+	"github.com/spf13/cobra"
+)
+
+type inspectOptions struct {
+	machine string
+	context string
+}
+
+func NewInspectCommand() *cobra.Command {
+	opts := inspectOptions{}
+
+	cmd := &cobra.Command{
+		Use:   "inspect [FLAGS] VOLUME_NAME",
+		Short: "Display detailed information on a volume.",
+		Args:  cobra.ExactArgs(1),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			uncli := cmd.Context().Value("cli").(*cli.CLI)
+			return inspect(cmd.Context(), uncli, args[0], opts)
+		},
+	}
+
+	cmd.Flags().StringVarP(&opts.machine, "machine", "m", "",
+		"Name or ID of the machine where the volume is located. "+
+			"If not specified, the volume will be searched across all machines.")
+	cmd.Flags().StringVarP(&opts.context, "context", "c", "",
+		"Name of the cluster context. (default is the current context)")
+
+	return cmd
+}
+
+func inspect(ctx context.Context, uncli *cli.CLI, name string, opts inspectOptions) error {
+	client, err := uncli.ConnectCluster(ctx, opts.context)
+	if err != nil {
+		return fmt.Errorf("connect to cluster: %w", err)
+	}
+	defer client.Close()
+
+	filter := &api.VolumeFilter{
+		Names: []string{name},
+	}
+	if opts.machine != "" {
+		filter.Machines = []string{opts.machine}
+	}
+
+	volumes, err := client.ListVolumes(ctx, filter)
+	if err != nil {
+		return fmt.Errorf("list volumes: %w", err)
+	}
+
+	if len(volumes) == 0 {
+		if opts.machine != "" {
+			return fmt.Errorf("volume '%s' not found on machine '%s'", name, opts.machine)
+		}
+		return fmt.Errorf("volume '%s' not found on any machine", name)
+	}
+	if len(volumes) > 1 {
+		fmt.Printf("Volume '%s' found on multiple machines:\n", name)
+		for _, v := range volumes {
+			fmt.Printf(" • %s\n", v.MachineName)
+		}
+		return errors.New("specify --machine flag to choose which machine to use")
+	}
+
+	data, err := json.MarshalIndent(volumes[0], "", "  ")
+	if err != nil {
+		return fmt.Errorf("marshal volume: %w", err)
+	}
+	fmt.Println(string(data))
+
+	return nil
+}

cmd/uncloud/volume/ls.go

@@ -0,0 +1,105 @@
+package volume
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"slices"
+	"strings"
+	"text/tabwriter"
+
+	"github.com/psviderski/uncloud/internal/cli"
+	"github.com/psviderski/uncloud/pkg/api"
+	"github.com/spf13/cobra"
+)
+
+type listOptions struct {
+	machines []string
+	quiet    bool
+	context  string
+}
+
+func NewListCommand() *cobra.Command {
+	opts := listOptions{}
+
+	cmd := &cobra.Command{
+		Use:     "ls [FLAGS]",
+		Aliases: []string{"list"},
+		Short:   "List volumes across all machines in the cluster.",
+		RunE: func(cmd *cobra.Command, args []string) error {
+			uncli := cmd.Context().Value("cli").(*cli.CLI)
+			return list(cmd.Context(), uncli, opts)
+		},
+	}
+
+	cmd.Flags().StringSliceVarP(&opts.machines, "machine", "m", nil,
+		"Filter volumes by machine name or ID. Can be specified multiple times or as a comma-separated list. "+
+			"(default is include all machines)")
+	cmd.Flags().BoolVarP(&opts.quiet, "quiet", "q", false,
+		"Only display volume names.")
+
+	cmd.Flags().StringVarP(&opts.context, "context", "c", "",
+		"Name of the cluster context. (default is the current context)")
+
+	return cmd
+}
+
+func list(ctx context.Context, uncli *cli.CLI, opts listOptions) error {
+	client, err := uncli.ConnectCluster(ctx, opts.context)
+	if err != nil {
+		return fmt.Errorf("connect to cluster: %w", err)
+	}
+	defer client.Close()
+
+	// Apply machine filter if specified.
+	var filter *api.VolumeFilter
+	if len(opts.machines) > 0 {
+		machines := cli.ExpandCommaSeparatedValues(opts.machines)
+		filter = &api.VolumeFilter{
+			Machines: machines,
+		}
+	}
+
+	volumes, err := client.ListVolumes(ctx, filter)
+	if err != nil {
+		return fmt.Errorf("list volumes: %w", err)
+	}
+
+	if len(volumes) == 0 {
+		if !opts.quiet {
+			fmt.Println("No volumes found.")
+		}
+		return nil
+	}
+
+	// Sort the volumes by name first, then by machine name.
+	slices.SortFunc(volumes, func(a, b api.MachineVolume) int {
+		cmp := strings.Compare(a.Volume.Name, b.Volume.Name)
+		if cmp != 0 {
+			return cmp
+		}
+		return strings.Compare(a.MachineName, b.MachineName)
+	})
+
+	// If quiet mode, just print volume names.
+	if opts.quiet {
+		for _, v := range volumes {
+			fmt.Println(v.Volume.Name)
+		}
+		return nil
+	}
+
+	// Print the volumes in a table format.
+	tw := tabwriter.NewWriter(os.Stdout, 0, 0, 3, ' ', 0)
+	fmt.Fprintln(tw, "NAME\tDRIVER\tMACHINE")
+
+	for _, v := range volumes {
+		fmt.Fprintf(tw, "%s\t%s\t%s\n",
+			v.Volume.Name,
+			v.Volume.Driver,
+			v.MachineName,
+		)
+	}
+
+	return tw.Flush()
+}

cmd/uncloud/volume/rm.go

@@ -0,0 +1,111 @@
+package volume
+
+import (
+	"context"
+	"errors"
+	"fmt"
+
+	"github.com/psviderski/uncloud/internal/cli"
+	"github.com/psviderski/uncloud/pkg/api"
+	"github.com/spf13/cobra"
+)
+
+type removeOptions struct {
+	force    bool
+	machines []string
+	yes      bool
+	context  string
+}
+
+func NewRemoveCommand() *cobra.Command {
+	opts := removeOptions{}
+
+	cmd := &cobra.Command{
+		Use:     "rm [FLAGS] VOLUME_NAME [VOLUME_NAME...]",
+		Aliases: []string{"remove", "delete"},
+		Short:   "Remove one or more volumes.",
+		Long:    "Remove one or more volumes. You cannot remove a volume that is in use by a container.",
+		Args:    cobra.MinimumNArgs(1),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			uncli := cmd.Context().Value("cli").(*cli.CLI)
+			return remove(cmd.Context(), uncli, args, opts)
+		},
+	}
+
+	cmd.Flags().BoolVarP(&opts.force, "force", "f", false,
+		"Force the removal of one or more volumes.")
+	cmd.Flags().StringSliceVarP(&opts.machines, "machine", "m", nil,
+		"Name or ID of the machine to remove one or more volumes from. "+
+			"Can be specified multiple times or as a comma-separated list.\n"+
+			"If not specified, the found volume(s) will be removed from all machines.")
+	cmd.Flags().BoolVarP(&opts.yes, "yes", "y", false,
+		"Do not prompt for confirmation before removing the volume(s).")
+
+	cmd.Flags().StringVarP(&opts.context, "context", "c", "",
+		"Name of the cluster context. (default is the current context)")
+
+	return cmd
+}
+
+func remove(ctx context.Context, uncli *cli.CLI, names []string, opts removeOptions) error {
+	client, err := uncli.ConnectCluster(ctx, opts.context)
+	if err != nil {
+		return fmt.Errorf("connect to cluster: %w", err)
+	}
+	defer client.Close()
+
+	filter := &api.VolumeFilter{
+		Names: names,
+	}
+
+	if len(opts.machines) > 0 {
+		machines := cli.ExpandCommaSeparatedValues(opts.machines)
+		filter.Machines = machines
+	}
+
+	volumes, err := client.ListVolumes(ctx, filter)
+	if err != nil {
+		return fmt.Errorf("list volumes: %w", err)
+	}
+
+	if len(volumes) == 0 {
+		if len(names) == 1 {
+			return fmt.Errorf("volume '%s' not found", names[0])
+		}
+		return fmt.Errorf("no volumes found matching the specified names")
+	}
+
+	// Confirm removal if not using --yes flag.
+	if !opts.yes {
+		fmt.Println("The following volumes will be removed:")
+		for _, v := range volumes {
+			fmt.Printf(" • '%s' on machine '%s'\n", v.Volume.Name, v.MachineName)
+		}
+
+		fmt.Println()
+		confirmed, err := cli.Confirm()
+		if err != nil {
+			return fmt.Errorf("confirm removal: %w", err)
+		}
+		if !confirmed {
+			fmt.Println("Cancelled. No volumes were removed.")
+			return nil
+		}
+	}
+
+	// Remove the volumes one by one collecting errors.
+	var removeErr error
+	for _, v := range volumes {
+		if err = client.RemoveVolume(ctx, v.MachineID, v.Volume.Name, opts.force); err != nil {
+			if !errors.Is(err, api.ErrNotFound) {
+				removeErr = errors.Join(removeErr, fmt.Errorf("failed to remove volume '%s' on machine '%s': %w",
+					v.Volume.Name, v.MachineName, err))
+			}
+			continue
+		}
+
+		fmt.Printf("Volume '%s' removed from machine '%s'.\n", v.Volume.Name, v.MachineName)
+	}
+
+	return removeErr
+}

cmd/uncloud/volume/root.go

@@ -0,0 +1,19 @@
+package volume
+
+import (
+	"github.com/spf13/cobra"
+)
+
+func NewRootCommand() *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "volume",
+		Short: "Manage volumes in an Uncloud cluster.",
+	}
+	cmd.AddCommand(
+		NewCreateCommand(),
+		NewInspectCommand(),
+		NewListCommand(),
+		NewRemoveCommand(),
+	)
+	return cmd
+}

cmd/uncloudd/main.go

@@ -2,14 +2,16 @@ package main
 
 import (
 	"context"
-	"github.com/spf13/cobra"
 	"log/slog"
 	"os"
 	"os/signal"
 	"syscall"
+
 	"github.com/psviderski/uncloud/internal/daemon"
 	"github.com/psviderski/uncloud/internal/log"
 	"github.com/psviderski/uncloud/internal/machine"
+	"github.com/psviderski/uncloud/internal/version"
+	"github.com/spf13/cobra"
 )
 
 func main() {
@@ -22,6 +24,7 @@ func main() {
 	cmd := &cobra.Command{
 		Use:           "uncloudd",
 		Short:         "Uncloud machine daemon.",
+		Version:       version.String(),
 		SilenceUsage:  true,
 		SilenceErrors: true,
 		RunE: func(cmd *cobra.Command, args []string) error {

docs/user_guide.md

@@ -16,7 +16,7 @@ In addition, any ports for any workloads you want to expose will need to be open
 
 ### Configuration
 
-Uncloud stores its configuration in `~/.config/uncloud/config.toml`. If you wish to reinitialise a cluster, simply remove it from this config.
+Uncloud stores its configuration in `~/.config/uncloud/config.yaml`. If you wish to reinitialise a cluster, simply remove it from this config.
 
 ### Initialisation
 

go.mod

@@ -11,6 +11,7 @@ require (
 	github.com/caddyserver/caddy/v2 v2.8.4
 	github.com/cenkalti/backoff/v4 v4.3.0
 	github.com/charmbracelet/huh v0.6.0
+	github.com/charmbracelet/lipgloss v0.13.0
 	github.com/compose-spec/compose-go/v2 v2.4.5
 	github.com/coreos/go-systemd v0.0.0-20191104093116-d3cd4ed1dbcf
 	github.com/deckarep/golang-set/v2 v2.8.0
@@ -21,6 +22,8 @@ require (
 	github.com/docker/docker v27.4.0-rc.2+incompatible
 	github.com/docker/go-connections v0.5.0
 	github.com/docker/go-units v0.5.0
+	github.com/goccy/go-yaml v1.17.1
+	github.com/google/go-cmp v0.7.0
 	github.com/google/go-containerregistry v0.20.2
 	github.com/hashicorp/memberlist v0.5.1
 	github.com/hashicorp/serf v0.10.1
@@ -33,6 +36,7 @@ require (
 	github.com/ipfs/go-log/v2 v2.5.1
 	github.com/jmoiron/sqlx v1.4.0
 	github.com/lmittmann/tint v1.0.5
+	github.com/miekg/dns v1.1.65
 	github.com/opencontainers/go-digest v1.0.0
 	github.com/opencontainers/image-spec v1.1.0
 	github.com/siderolabs/discovery-api v0.1.4
@@ -43,9 +47,9 @@ require (
 	github.com/vishvananda/netlink v1.3.0
 	go.uber.org/zap v1.27.0
 	go4.org/netipx v0.0.0-20231129151722-fdeea329fbba
-	golang.org/x/crypto v0.32.0
-	golang.org/x/net v0.34.0
-	golang.org/x/sync v0.10.0
+	golang.org/x/crypto v0.33.0
+	golang.org/x/net v0.35.0
+	golang.org/x/sync v0.11.0
 	golang.org/x/sys v0.31.0
 	golang.zx2c4.com/wireguard v0.0.0-20231211153847-12269c276173
 	golang.zx2c4.com/wireguard/wgctrl v0.0.0-20230429144221-925a1e7659e6
@@ -82,7 +86,6 @@ require (
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/charmbracelet/bubbles v0.20.0 // indirect
 	github.com/charmbracelet/bubbletea v1.1.1 // indirect
-	github.com/charmbracelet/lipgloss v0.13.0 // indirect
 	github.com/charmbracelet/x/ansi v0.3.2 // indirect
 	github.com/charmbracelet/x/exp/strings v0.0.0-20240919170804-a4978c8e603a // indirect
 	github.com/charmbracelet/x/term v0.2.0 // indirect
@@ -135,7 +138,6 @@ require (
 	github.com/google/btree v1.1.2 // indirect
 	github.com/google/cel-go v0.20.1 // indirect
 	github.com/google/flatbuffers v24.3.25+incompatible // indirect
-	github.com/google/go-cmp v0.6.0 // indirect
 	github.com/google/pprof v0.0.0-20250317173921-a4b03ec1a45e // indirect
 	github.com/google/shlex v0.0.0-20191202100458-e7afc7fbc510 // indirect
 	github.com/google/uuid v1.6.0 // indirect
@@ -196,7 +198,6 @@ require (
 	github.com/mdlayher/socket v0.5.1 // indirect
 	github.com/mgutz/ansi v0.0.0-20200706080929-d51e80ef957d // indirect
 	github.com/mholt/acmez/v2 v2.0.3 // indirect
-	github.com/miekg/dns v1.1.62 // indirect
 	github.com/miekg/pkcs11 v1.1.1 // indirect
 	github.com/minio/sha256-simd v1.0.1 // indirect
 	github.com/mitchellh/cli v1.1.5 // indirect
@@ -302,11 +303,11 @@ require (
 	go.uber.org/zap/exp v0.2.0 // indirect
 	golang.org/x/crypto/x509roots/fallback v0.0.0-20240507223354-67b13616a595 // indirect
 	golang.org/x/exp v0.0.0-20241215155358-4a5509556b9e // indirect
-	golang.org/x/mod v0.22.0 // indirect
-	golang.org/x/term v0.28.0 // indirect
-	golang.org/x/text v0.21.0 // indirect
+	golang.org/x/mod v0.23.0 // indirect
+	golang.org/x/term v0.29.0 // indirect
+	golang.org/x/text v0.22.0 // indirect
 	golang.org/x/time v0.8.0 // indirect
-	golang.org/x/tools v0.29.0 // indirect
+	golang.org/x/tools v0.30.0 // indirect
 	golang.zx2c4.com/wintun v0.0.0-20230126152724-0fa3db229ce2 // indirect
 	google.golang.org/genproto v0.0.0-20240401170217-c3f982113cda // indirect
 	google.golang.org/genproto/googleapis/api v0.0.0-20241209162323-e6fa225c2576 // indirect

go.sum

@@ -343,6 +343,8 @@ github.com/go-task/slim-sprig/v3 v3.0.0/go.mod h1:W848ghGpv3Qj3dhTPRyJypKRiqCdHZ
 github.com/go-viper/mapstructure/v2 v2.0.0 h1:dhn8MZ1gZ0mzeodTG3jt5Vj/o87xZKuNAprG2mQfMfc=
 github.com/go-viper/mapstructure/v2 v2.0.0/go.mod h1:oJDH3BJKyqBA2TXFhDsKDGDTlndYOZ6rGS0BRZIxGhM=
 github.com/go-yaml/yaml v2.1.0+incompatible/go.mod h1:w2MrLa16VYP0jy6N7M5kHaCkaLENm+P+Tv+MfurjSw0=
+github.com/goccy/go-yaml v1.17.1 h1:LI34wktB2xEE3ONG/2Ar54+/HJVBriAGJ55PHls4YuY=
+github.com/goccy/go-yaml v1.17.1/go.mod h1:XBurs7gK8ATbW4ZPGKgcbrY1Br56PdM69F7LkFRi1kA=
 github.com/godbus/dbus/v5 v5.1.0 h1:4KLkAxT3aOY8Li4FRJe/KvhoNFFxo0m6fNuFUO8QJUk=
 github.com/godbus/dbus/v5 v5.1.0/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
 github.com/gofrs/flock v0.12.1 h1:MTLVXXHf8ekldpJk3AKicLij9MdwOWkZ+a/jHHZby9E=
@@ -397,8 +399,8 @@ github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/
 github.com/google/go-cmp v0.5.3/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.4/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 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
-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 v0.9.0 h1:sQF6YqWMi+SCXpsmS3fd21oPy/vSddwZry4JnmltHVk=
@@ -719,8 +721,8 @@ github.com/mholt/acmez/v2 v2.0.3 h1:CgDBlEwg3QBp6s45tPQmFIBrkRIkBT4rW4orMM6p4sw=
 github.com/mholt/acmez/v2 v2.0.3/go.mod h1:pQ1ysaDeGrIMvJ9dfJMk5kJNkn7L2sb3UhyrX6Q91cw=
 github.com/miekg/dns v1.1.26/go.mod h1:bPDLeHnStXmXAq1m/Ch/hvfNHr14JKNPMBo3VZKjuso=
 github.com/miekg/dns v1.1.41/go.mod h1:p6aan82bvRIyn+zDIv9xYNUpwa73JcSh9BKwknJysuI=
-github.com/miekg/dns v1.1.62 h1:cN8OuEF1/x5Rq6Np+h1epln8OiyPWV+lROx9LxcGgIQ=
-github.com/miekg/dns v1.1.62/go.mod h1:mvDlcItzm+br7MToIKqkglaGhlFMHJ9DTNNWONWXbNQ=
+github.com/miekg/dns v1.1.65 h1:0+tIPHzUW0GCge7IiK3guGP57VAw7hoPDfApjkMD1Fc=
+github.com/miekg/dns v1.1.65/go.mod h1:Dzw9769uoKVaLuODMDZz9M6ynFU6Em65csPuoi8G0ck=
 github.com/miekg/pkcs11 v1.0.2/go.mod h1:XsNlhZGX73bx86s2hdc/FuaLm2CPZJemRLMA+WTFxgs=
 github.com/miekg/pkcs11 v1.1.1 h1:Ugu9pdy6vAYku5DEpVWVFPYnzV+bxB+iRdbuFSu7TvU=
 github.com/miekg/pkcs11 v1.1.1/go.mod h1:XsNlhZGX73bx86s2hdc/FuaLm2CPZJemRLMA+WTFxgs=
@@ -1194,8 +1196,8 @@ golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97/go.mod h1:GvvjBRRGRdwPK5y
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/crypto v0.3.0/go.mod h1:hebNnKkNXi2UzZN1eVRvBB7co0a+JxK6XbPiWVs/3J4=
 golang.org/x/crypto v0.19.0/go.mod h1:Iy9bg/ha4yyC70EfRS8jz+B6ybOBKMaSxLj6P6oBDfU=
-golang.org/x/crypto v0.32.0 h1:euUpcYgM8WcP71gNpTqQCn6rC2t6ULUPiOzfWaXVVfc=
-golang.org/x/crypto v0.32.0/go.mod h1:ZnnJkOaASj8g0AjIduWNlq2NRxL0PlBrbKVyZ6V/Ugc=
+golang.org/x/crypto v0.33.0 h1:IOBPskki6Lysi0lo9qQvbxiQ+FvsCC/YWOecCHAixus=
+golang.org/x/crypto v0.33.0/go.mod h1:bVdXmD7IV/4GdElGPozy6U7lWdRXA4qyRVGJV57uQ5M=
 golang.org/x/crypto/x509roots/fallback v0.0.0-20240507223354-67b13616a595 h1:TgSqweA595vD0Zt86JzLv3Pb/syKg8gd5KMGGbJPYFw=
 golang.org/x/crypto/x509roots/fallback v0.0.0-20240507223354-67b13616a595/go.mod h1:kNa9WdvYnzFwC79zRpLRMJbdEFlhyM5RPFBBZp/wWH8=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
@@ -1212,8 +1214,8 @@ golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 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 v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
-golang.org/x/mod v0.22.0 h1:D4nJWe9zXqHOmWqj4VMOJhvzj7bEZg4wEYa759z1pH4=
-golang.org/x/mod v0.22.0/go.mod h1:6SkKJ3Xj0I0BrPOZoBy3bdMptDDU9oJrpohJ3eWZ1fY=
+golang.org/x/mod v0.23.0 h1:Zb7khfcRGKk+kqfxFaP5tZqCnDZMjC5VtUBs87Hr6QM=
+golang.org/x/mod v0.23.0/go.mod h1:6SkKJ3Xj0I0BrPOZoBy3bdMptDDU9oJrpohJ3eWZ1fY=
 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 v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@@ -1235,8 +1237,8 @@ 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 v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
 golang.org/x/net v0.10.0/go.mod h1:0qNGK6F8kojg2nk9dLZ2mShWaEBan6FAoqfSigmmuDg=
-golang.org/x/net v0.34.0 h1:Mb7Mrk043xzHgnRM88suvJFwzVrRfHEHJEl5/71CKw0=
-golang.org/x/net v0.34.0/go.mod h1:di0qlW3YNM5oh6GqDGQr92MyTozJPmybPK4Ev/Gm31k=
+golang.org/x/net v0.35.0 h1:T5GQRQb2y08kTAByq9L4/bz8cipCdA8FbRTXewonqY8=
+golang.org/x/net v0.35.0/go.mod h1:EglIi67kWsHKlRzzVMUD93VMSWGFOMSZgxFjparz1Qk=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.24.0 h1:KTBBxWqUa0ykRPLtV69rRto9TLXcqYkeswu48x/gvNE=
 golang.org/x/oauth2 v0.24.0/go.mod h1:XYTD2NtWslqkgxebSiOHnXEap4TF09sJSc7H1sXbhtI=
@@ -1250,8 +1252,8 @@ golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/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 v0.10.0 h1:3NQrjDixjgGwUOCaF8w2+VYHv0Ve/vGYSbdkTa98gmQ=
-golang.org/x/sync v0.10.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
+golang.org/x/sync v0.11.0 h1:GGz8+XQP4FvTTrjZPzNKTMFtSXH80RAzG+5ghFPgK9w=
+golang.org/x/sync v0.11.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
 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=
@@ -1308,8 +1310,8 @@ golang.org/x/term v0.2.0/go.mod h1:TVmDHMZPmdnySmBfhjOoOdhjzdE1h4u1VwSiw2l1Nuc=
 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 v0.17.0/go.mod h1:lLRBjIVuehSbZlaOtGMbcMncT+aqLLLmKrsjNrUguwk=
-golang.org/x/term v0.28.0 h1:/Ts8HFuMR2E6IP/jlo7QVLZHggjKQbhu/7H0LJFr3Gg=
-golang.org/x/term v0.28.0/go.mod h1:Sw/lC2IAUZ92udQNf3WodGtn4k/XoLyZoh8v/8uiwek=
+golang.org/x/term v0.29.0 h1:L6pJp37ocefwRRtYPKSWOWzOtWSxVajvz2ldH/xi3iU=
+golang.org/x/term v0.29.0/go.mod h1:6bl4lRlvVuDgSf3179VpIxBF0o10JUpXWOnI7nErv7s=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
@@ -1320,8 +1322,8 @@ 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 v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
-golang.org/x/text v0.21.0 h1:zyQAAkrwaneQ066sspRyJaG9VNi/YJ1NfzcGB3hZ/qo=
-golang.org/x/text v0.21.0/go.mod h1:4IBbMaMmOPCJ8SecivzSH54+73PCFmPWxNTLm+vZkEQ=
+golang.org/x/text v0.22.0 h1:bofq7m3/HAFvbF51jz3Q9wLg3jkvSPuiZu/pD1XwgtM=
+golang.org/x/text v0.22.0/go.mod h1:YRoo4H8PVmsu+E3Ou7cqLVH8oXWIHVoX0jqUWALQhfY=
 golang.org/x/time v0.8.0 h1:9i3RxcPv3PZnitoVGMPDKZSq1xW1gK1Xy3ArNOGZfEg=
 golang.org/x/time v0.8.0/go.mod h1:3BpzKBy/shNhVucY/MWOyx10tF3SFh9QdLuxbVysPQM=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
@@ -1343,8 +1345,8 @@ golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4f
 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 v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
-golang.org/x/tools v0.29.0 h1:Xx0h3TtM9rzQpQuR4dKLrdglAmCEN5Oi+P74JdhdzXE=
-golang.org/x/tools v0.29.0/go.mod h1:KMQVMRsVxU6nHCFXrBPhDB8XncLNLM0lIy/F14RP588=
+golang.org/x/tools v0.30.0 h1:BgcpHewrV5AUp2G9MebG4XPFI1E2W41zU1SaqVA9vJY=
+golang.org/x/tools v0.30.0/go.mod h1:c347cR/OJfw5TI+GfX7RUPNMdDRRbjvYTS0jPyvsVtY=
 golang.org/x/xerrors v0.0.0-20190410155217-1f06c39b4373/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20190513163551-3ee3066db522/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=

internal/cli/cli.go

@@ -4,6 +4,10 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"net/netip"
+	"os"
+
+	"github.com/charmbracelet/huh"
 	"github.com/docker/cli/cli/streams"
 	"github.com/psviderski/uncloud/internal/cli/config"
 	"github.com/psviderski/uncloud/internal/fs"
@@ -13,17 +17,15 @@ import (
 	"github.com/psviderski/uncloud/pkg/api"
 	"github.com/psviderski/uncloud/pkg/client"
 	"github.com/psviderski/uncloud/pkg/client/connector"
-	"net/netip"
-	"os"
-
-	"github.com/charmbracelet/huh"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
 	"google.golang.org/protobuf/types/known/emptypb"
 )
 
-const defaultClusterName = "default"
+const defaultContextName = "default"
 
 type CLI struct {
-	config *config.Config
+	Config *config.Config
 	conn   *config.MachineConnection
 }
 
@@ -41,65 +43,72 @@ func New(configPath string, conn *config.MachineConnection) (*CLI, error) {
 	}
 
 	return &CLI{
-		config: cfg,
+		Config: cfg,
 	}, nil
 }
 
-func (cli *CLI) CreateCluster(name string) error {
-	if _, ok := cli.config.Clusters[name]; ok {
-		return fmt.Errorf("cluster %q already exists", name)
+func (cli *CLI) CreateContext(name string) error {
+	if _, ok := cli.Config.Contexts[name]; ok {
+		return fmt.Errorf("context '%s' already exists", name)
 	}
-	cli.config.Clusters[name] = &config.Cluster{
+	cli.Config.Contexts[name] = &config.Context{
 		Name: name,
 	}
-	return cli.config.Save()
+	return cli.Config.Save()
 }
 
-func (cli *CLI) SetCurrentCluster(name string) error {
-	if _, ok := cli.config.Clusters[name]; !ok {
+func (cli *CLI) SetCurrentContext(name string) error {
+	if _, ok := cli.Config.Contexts[name]; !ok {
 		return api.ErrNotFound
 	}
-	cli.config.CurrentCluster = name
-	return cli.config.Save()
+	cli.Config.CurrentContext = name
+	return cli.Config.Save()
 }
 
-// ConnectCluster connects to a cluster using the given cluster name or the current cluster if not specified.
+// ConnectCluster connects to a cluster using the given context name or the current context if not specified.
 // If the CLI was initialised with a machine connection, the config is ignored and the connection is used instead.
-func (cli *CLI) ConnectCluster(ctx context.Context, clusterName string) (*client.Client, error) {
+func (cli *CLI) ConnectCluster(ctx context.Context, contextName string) (*client.Client, error) {
 	if cli.conn != nil {
 		return connectCluster(ctx, *cli.conn)
 	}
 
-	if len(cli.config.Clusters) == 0 {
-		return nil, errors.New(
-			"no clusters found in the Uncloud config. " +
-				"Please initialise a cluster with `uncloud machine init` first",
+	if len(cli.Config.Contexts) == 0 {
+		return nil, fmt.Errorf(
+			"no cluster contexts found in the Uncloud config (%s). "+
+				"Please initialise a cluster with 'uncloud machine init' first",
+			cli.Config.Path(),
 		)
 	}
-	if clusterName == "" {
+	if contextName == "" {
 		// If the cluster is not specified, use the current cluster if set.
-		if cli.config.CurrentCluster == "" {
-			return nil, errors.New(
-				"the current cluster is not set in the Uncloud config. " +
-					"Please specify a cluster with the --cluster flag or set current_cluster in the config",
-			)
-		}
-		if _, ok := cli.config.Clusters[cli.config.CurrentCluster]; !ok {
+		if cli.Config.CurrentContext == "" {
 			return nil, fmt.Errorf(
-				"current cluster %q not found in the config. "+
-					"Please specify a cluster with the --cluster flag or update current_cluster in the config",
-				cli.config.CurrentCluster,
+				"the current cluster context is not set in the Uncloud config (%s). "+
+					"Please specify the context with the '--context' flag or set 'current_context' in the config",
+				cli.Config.Path(),
 			)
 		}
-		clusterName = cli.config.CurrentCluster
+		if _, ok := cli.Config.Contexts[cli.Config.CurrentContext]; !ok {
+			return nil, fmt.Errorf(
+				"current cluster context '%s' not found in the Uncloud config (%s). "+
+					"Please specify the context with the '--context' flag or update 'current_context' in the config",
+				cli.Config.CurrentContext,
+				cli.Config.Path(),
+			)
+		}
+		contextName = cli.Config.CurrentContext
 	}
 
-	cfg, ok := cli.config.Clusters[clusterName]
+	cfg, ok := cli.Config.Contexts[contextName]
 	if !ok {
-		return nil, fmt.Errorf("cluster %q not found in the config", clusterName)
+		return nil, fmt.Errorf("cluster context '%s' not found in the Uncloud config (%s)",
+			contextName, cli.Config.Path())
 	}
 	if len(cfg.Connections) == 0 {
-		return nil, fmt.Errorf("no connection configurations found for cluster %q in the config", clusterName)
+		return nil, fmt.Errorf(
+			"no connection configurations found for cluster context '%s' in the Uncloud config (%s)",
+			contextName, cli.Config.Path(),
+		)
 	}
 
 	// TODO: iterate over all connections and try to connect to the cluster using the first successful connection.
@@ -107,7 +116,7 @@ func (cli *CLI) ConnectCluster(ctx context.Context, clusterName string) (*client
 
 	c, err := connectCluster(ctx, conn)
 	if err != nil {
-		return nil, errors.New("no valid connection configuration found for the cluster")
+		return nil, fmt.Errorf("connect to cluster (context '%s'): %w", contextName, err)
 	}
 
 	return c, nil
@@ -129,46 +138,42 @@ func connectCluster(ctx context.Context, conn config.MachineConnection) (*client
 			KeyPath: keyPath,
 		}
 		return client.New(ctx, connector.NewSSHConnector(sshConfig))
-	} else if conn.TCP.IsValid() {
-		return client.New(ctx, connector.NewTCPConnector(conn.TCP))
+	} else if conn.TCP != nil && conn.TCP.IsValid() {
+		return client.New(ctx, connector.NewTCPConnector(*conn.TCP))
 	}
 
 	return nil, errors.New("connection configuration is invalid")
 }
 
+type InitClusterOptions struct {
+	Context       string
+	MachineName   string
+	Network       netip.Prefix
+	PublicIP      *netip.Addr
+	RemoteMachine *RemoteMachine
+	Version       string
+}
+
 // InitCluster initialises a new cluster on a remote machine and returns a client to interact with the cluster.
 // The client should be closed after use by the caller.
-func (cli *CLI) InitCluster(
-	ctx context.Context,
-	remoteMachine *RemoteMachine,
-	clusterName,
-	machineName string,
-	netPrefix netip.Prefix,
-	publicIP *netip.Addr,
-) (*client.Client, error) {
-	if remoteMachine != nil {
-		return cli.initRemoteMachine(ctx, *remoteMachine, clusterName, machineName, netPrefix, publicIP)
+func (cli *CLI) InitCluster(ctx context.Context, opts InitClusterOptions) (*client.Client, error) {
+	if opts.RemoteMachine != nil {
+		return cli.initRemoteMachine(ctx, opts)
 	}
 	// TODO: implement local machine initialisation
 	return nil, fmt.Errorf("local machine initialisation is not implemented yet")
 }
 
-func (cli *CLI) initRemoteMachine(
-	ctx context.Context,
-	remoteMachine RemoteMachine,
-	clusterName,
-	machineName string,
-	netPrefix netip.Prefix,
-	publicIP *netip.Addr,
-) (*client.Client, error) {
-	if clusterName == "" {
-		clusterName = defaultClusterName
+func (cli *CLI) initRemoteMachine(ctx context.Context, opts InitClusterOptions) (*client.Client, error) {
+	contextName := opts.Context
+	if contextName == "" {
+		contextName = defaultContextName
 	}
-	if _, ok := cli.config.Clusters[clusterName]; ok {
-		return nil, fmt.Errorf("cluster %q already exists", clusterName)
+	if _, ok := cli.Config.Contexts[contextName]; ok {
+		return nil, fmt.Errorf("cluster context '%s' already exists", contextName)
 	}
 
-	machineClient, err := cli.provisionRemoteMachine(ctx, remoteMachine)
+	machineClient, err := cli.provisionRemoteMachine(ctx, *opts.RemoteMachine, opts.Version)
 	if err != nil {
 		return nil, err
 	}
@@ -190,13 +195,24 @@ func (cli *CLI) initRemoteMachine(
 		}
 	}
 
-	req := &pb.InitClusterRequest{
-		MachineName: machineName,
-		Network:     pb.NewIPPrefix(netPrefix),
+	// Check machine meets all necessary system requirements before proceeding.
+	checkResp, err := machineClient.CheckPrerequisites(ctx, &emptypb.Empty{})
+	// TODO(lhf): remove Unimplemented check when v0.9.0 is released.
+	if err != nil {
+		if status.Convert(err).Code() != codes.Unimplemented {
+			return nil, fmt.Errorf("check machine prerequisites: %w", err)
+		}
+	} else if !checkResp.Satisfied {
+		return nil, fmt.Errorf("machine prerequisites not satisfied: %s", checkResp.Error)
 	}
-	if publicIP != nil {
-		if publicIP.IsValid() {
-			req.PublicIpConfig = &pb.InitClusterRequest_PublicIp{PublicIp: pb.NewIP(*publicIP)}
+
+	req := &pb.InitClusterRequest{
+		MachineName: opts.MachineName,
+		Network:     pb.NewIPPrefix(opts.Network),
+	}
+	if opts.PublicIP != nil {
+		if opts.PublicIP.IsValid() {
+			req.PublicIpConfig = &pb.InitClusterRequest_PublicIp{PublicIp: pb.NewIP(*opts.PublicIP)}
 		} else {
 			// Invalid or in other words zero IP means to automatically detect the public IP.
 			req.PublicIpConfig = &pb.InitClusterRequest_PublicIpAuto{PublicIpAuto: true}
@@ -207,42 +223,50 @@ func (cli *CLI) initRemoteMachine(
 	if err != nil {
 		return nil, fmt.Errorf("init cluster: %w", err)
 	}
-	fmt.Printf("Cluster %q initialised with machine %q\n", clusterName, resp.Machine.Name)
-
-	if err = cli.CreateCluster(clusterName); err != nil {
-		return nil, fmt.Errorf("save cluster to config: %w", err)
+	fmt.Printf("Cluster initialised with machine '%s' and saved as context '%s' in your local config (%s)\n",
+		resp.Machine.Name, contextName, cli.Config.Path())
+	if err = cli.CreateContext(contextName); err != nil {
+		return nil, fmt.Errorf("save cluster context to config: %w", err)
 	}
-	// Set the current cluster to the just created one if it is the only cluster in the config.
-	if len(cli.config.Clusters) == 1 {
-		if err = cli.SetCurrentCluster(clusterName); err != nil {
-			return nil, fmt.Errorf("set current cluster: %w", err)
-		}
+	if err = cli.SetCurrentContext(contextName); err != nil {
+		return nil, fmt.Errorf("set current cluster context: %w", err)
 	}
+	fmt.Printf("Current cluster context is now '%s'.\n", contextName)
 
-	// Save the machine's SSH connection details in the cluster config.
+	// Save the machine's SSH connection details in the context config.
 	connCfg := config.MachineConnection{
-		SSH:        config.NewSSHDestination(remoteMachine.User, remoteMachine.Host, remoteMachine.Port),
-		SSHKeyFile: remoteMachine.KeyPath,
+		SSH:        config.NewSSHDestination(opts.RemoteMachine.User, opts.RemoteMachine.Host, opts.RemoteMachine.Port),
+		SSHKeyFile: opts.RemoteMachine.KeyPath,
 	}
-	cli.config.Clusters[clusterName].Connections = append(cli.config.Clusters[clusterName].Connections, connCfg)
-	if err = cli.config.Save(); err != nil {
+	cli.Config.Contexts[contextName].Connections = append(cli.Config.Contexts[contextName].Connections, connCfg)
+	if err = cli.Config.Save(); err != nil {
 		return nil, fmt.Errorf("save config: %w", err)
 	}
 	return machineClient, nil
 }
 
+type AddMachineOptions struct {
+	Context       string
+	MachineName   string
+	PublicIP      *netip.Addr
+	RemoteMachine RemoteMachine
+	Version       string
+}
+
 // AddMachine provisions a remote machine and adds it to the cluster. It returns a client to interact with the machine
 // which should be closed after use by the caller.
-func (cli *CLI) AddMachine(
-	ctx context.Context, remoteMachine RemoteMachine, clusterName, machineName string, publicIP *netip.Addr,
-) (*client.Client, error) {
-	c, err := cli.ConnectCluster(ctx, clusterName)
+func (cli *CLI) AddMachine(ctx context.Context, opts AddMachineOptions) (*client.Client, error) {
+	contextName := opts.Context
+	if contextName == "" {
+		contextName = cli.Config.CurrentContext
+	}
+	c, err := cli.ConnectCluster(ctx, contextName)
 	if err != nil {
-		return nil, fmt.Errorf("connect to cluster: %w", err)
+		return nil, fmt.Errorf("connect to cluster (context '%s'): %w", contextName, err)
 	}
 	defer c.Close()
 
-	machineClient, err := cli.provisionRemoteMachine(ctx, remoteMachine)
+	machineClient, err := cli.provisionRemoteMachine(ctx, opts.RemoteMachine, opts.Version)
 	if err != nil {
 		return nil, err
 	}
@@ -263,6 +287,17 @@ func (cli *CLI) AddMachine(
 		}
 	}
 
+	// Check machine meets all necessary system requirements before proceeding.
+	checkResp, err := machineClient.CheckPrerequisites(ctx, &emptypb.Empty{})
+	// TODO(lhf): remove Unimplemented check when v0.9.0 is released.
+	if err != nil {
+		if status.Convert(err).Code() != codes.Unimplemented {
+			return nil, fmt.Errorf("check machine prerequisites: %w", err)
+		}
+	} else if !checkResp.Satisfied {
+		return nil, fmt.Errorf("machine prerequisites not satisfied: %s", checkResp.Error)
+	}
+
 	tokenResp, err := machineClient.Token(ctx, &emptypb.Empty{})
 	if err != nil {
 		return nil, fmt.Errorf("get remote machine token: %w", err)
@@ -278,15 +313,15 @@ func (cli *CLI) AddMachine(
 		endpoints[i] = pb.NewIPPort(addrPort)
 	}
 	addReq := &pb.AddMachineRequest{
-		Name: machineName,
+		Name: opts.MachineName,
 		Network: &pb.NetworkConfig{
 			Endpoints: endpoints,
 			PublicKey: token.PublicKey,
 		},
 	}
-	if publicIP != nil {
-		if publicIP.IsValid() {
-			addReq.PublicIp = pb.NewIP(*publicIP)
+	if opts.PublicIP != nil {
+		if opts.PublicIP.IsValid() {
+			addReq.PublicIp = pb.NewIP(*opts.PublicIP)
 		} else if token.PublicIP.IsValid() {
 			// Invalid or in other words zero IP means to use an automatically detected public IP from the token.
 			addReq.PublicIp = pb.NewIP(token.PublicIP)
@@ -295,11 +330,11 @@ func (cli *CLI) AddMachine(
 
 	addResp, err := c.AddMachine(ctx, addReq)
 	if err != nil {
-		return nil, fmt.Errorf("add machine to cluster: %w", err)
+		return nil, fmt.Errorf("add machine to cluster (context '%s'): %w", contextName, err)
 	}
 
 	// List other machines in the cluster to include them in the join request.
-	machines, err := c.ListMachines(ctx)
+	machines, err := c.ListMachines(ctx, nil)
 	if err != nil {
 		return nil, fmt.Errorf("list cluster machines: %w", err)
 	}
@@ -319,18 +354,19 @@ func (cli *CLI) AddMachine(
 		return nil, fmt.Errorf("join cluster: %w", err)
 	}
 
-	fmt.Printf("Machine %q added to cluster\n", addResp.Machine.Name)
+	// TODO: fix empty context name when using the current context (contextName == "").
+	fmt.Printf("Machine '%s' added to the cluster (context '%s').\n", addResp.Machine.Name, contextName)
 
-	// Save the machine's SSH connection details in the cluster config.
+	// Save the machine's SSH connection details in the context config.
 	connCfg := config.MachineConnection{
-		SSH:        config.NewSSHDestination(remoteMachine.User, remoteMachine.Host, remoteMachine.Port),
-		SSHKeyFile: remoteMachine.KeyPath,
+		SSH:        config.NewSSHDestination(opts.RemoteMachine.User, opts.RemoteMachine.Host, opts.RemoteMachine.Port),
+		SSHKeyFile: opts.RemoteMachine.KeyPath,
 	}
-	if clusterName == "" {
-		clusterName = cli.config.CurrentCluster
+	if contextName == "" {
+		contextName = cli.Config.CurrentContext
 	}
-	cli.config.Clusters[clusterName].Connections = append(cli.config.Clusters[clusterName].Connections, connCfg)
-	if err = cli.config.Save(); err != nil {
+	cli.Config.Contexts[contextName].Connections = append(cli.Config.Contexts[contextName].Connections, connCfg)
+	if err = cli.Config.Save(); err != nil {
 		return nil, fmt.Errorf("save config: %w", err)
 	}
 
@@ -339,7 +375,10 @@ func (cli *CLI) AddMachine(
 
 // provisionRemoteMachine installs the Uncloud daemon and dependencies on the remote machine over SSH and returns
 // a machine API client to interact with the machine. The client should be closed after use by the caller.
-func (cli *CLI) provisionRemoteMachine(ctx context.Context, remoteMachine RemoteMachine) (*client.Client, error) {
+// The version parameter specifies the version of the Uncloud daemon to install. If empty, the latest version is used.
+func (cli *CLI) provisionRemoteMachine(
+	ctx context.Context, remoteMachine RemoteMachine, version string,
+) (*client.Client, error) {
 	// Provision the remote machine by installing the Uncloud daemon and dependencies over SSH.
 	sshClient, err := sshexec.Connect(remoteMachine.User, remoteMachine.Host, remoteMachine.Port, remoteMachine.KeyPath)
 	if err != nil {
@@ -350,7 +389,7 @@ func (cli *CLI) provisionRemoteMachine(ctx context.Context, remoteMachine Remote
 	}
 	exec := sshexec.NewRemote(sshClient)
 	// Install and run the Uncloud daemon and dependencies on the remote machine.
-	if err = provisionMachine(ctx, exec); err != nil {
+	if err = provisionMachine(ctx, exec, version); err != nil {
 		return nil, fmt.Errorf("provision machine: %w", err)
 	}
 
@@ -387,7 +426,7 @@ func (cli *CLI) promptResetMachine() error {
 				Negative("No").
 				Value(&confirm),
 		),
-	)
+	).WithAccessible(true)
 	if err := form.Run(); err != nil {
 		return fmt.Errorf("prompt user to confirm: %w", err)
 	}
@@ -396,7 +435,8 @@ func (cli *CLI) promptResetMachine() error {
 		return fmt.Errorf("remote machine is already initialised as a cluster member")
 	}
 	// TODO: implement resetting the remote machine.
-	return fmt.Errorf("resetting the remote machine is not implemented yet")
+	return fmt.Errorf("resetting the remote machine is not implemented yet. " +
+		"Please manually run 'uncloud-uninstall' on the remote machine to fully uninstall Uncloud from it")
 }
 
 // ProgressOut returns an output stream for progress writer.

internal/cli/config/cluster.go

@@ -1,6 +0,0 @@
-package config
-
-type Cluster struct {
-	Name        string              `toml:"-"`
-	Connections []MachineConnection `toml:"connections"`
-}

internal/cli/config/config.go

@@ -2,14 +2,15 @@ package config
 
 import (
 	"fmt"
-	"github.com/BurntSushi/toml"
 	"os"
 	"path/filepath"
+
+	"github.com/goccy/go-yaml"
 )
 
 type Config struct {
-	Clusters       map[string]*Cluster `toml:"clusters"`
-	CurrentCluster string              `toml:"current_cluster"`
+	CurrentContext string              `yaml:"current_context"`
+	Contexts       map[string]*Context `yaml:"contexts"`
 
 	// path is the file path config is read from.
 	path string
@@ -18,10 +19,10 @@ type Config struct {
 func NewFromFile(path string) (*Config, error) {
 	_, err := os.Stat(path)
 	if err != nil && !os.IsNotExist(err) {
-		return nil, fmt.Errorf("check file permissions %q: %w", path, err)
+		return nil, fmt.Errorf("check file permissions '%s': %w", path, err)
 	}
 	c := &Config{
-		Clusters: map[string]*Cluster{},
+		Contexts: map[string]*Context{},
 		path:     path,
 	}
 	if os.IsNotExist(err) {
@@ -34,30 +35,37 @@ func NewFromFile(path string) (*Config, error) {
 	return c, nil
 }
 
+func (c *Config) Path() string {
+	return c.path
+}
+
 func (c *Config) Read() error {
-	_, err := toml.DecodeFile(c.path, c)
+	data, err := os.ReadFile(c.path)
 	if err != nil {
-		return fmt.Errorf("read config file %q: %w", c.path, err)
+		return fmt.Errorf("read config file '%s': %w", c.path, err)
 	}
+	if err = yaml.Unmarshal(data, c); err != nil {
+		return fmt.Errorf("parse config file '%s': %s", c.path, yaml.FormatError(err, true, true))
+	}
+
 	return nil
 }
 
 func (c *Config) Save() error {
 	dir, _ := filepath.Split(c.path)
 	if err := os.MkdirAll(dir, 0700); err != nil {
-		return fmt.Errorf("create config directory %q: %w", dir, err)
+		return fmt.Errorf("create config directory '%s': %w", dir, err)
 	}
 
 	f, err := os.OpenFile(c.path, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0600)
 	if err != nil {
-		return fmt.Errorf("write config file %q: %w", c.path, err)
+		return fmt.Errorf("write config file '%s': %w", c.path, err)
 	}
 
-	encoder := toml.NewEncoder(f)
-	encoder.Indent = ""
+	encoder := yaml.NewEncoder(f, yaml.Indent(2), yaml.IndentSequence(true))
 	if err = encoder.Encode(c); err != nil {
 		_ = f.Close()
-		return fmt.Errorf("encode config file %q: %w", c.path, err)
+		return fmt.Errorf("encode config file '%s': %w", c.path, err)
 	}
 	return f.Close()
 }

internal/cli/config/connection.go

@@ -5,6 +5,7 @@ import (
 	"net/netip"
 	"strconv"
 	"strings"
+
 	"github.com/psviderski/uncloud/internal/secret"
 )
 
@@ -14,11 +15,13 @@ const (
 )
 
 type MachineConnection struct {
-	SSH        SSHDestination `toml:"ssh,omitempty"`
-	SSHKeyFile string         `toml:"ssh_key_file,omitempty"`
-	TCP        netip.AddrPort `toml:"tcp,omitempty"`
-	Host       string         `toml:"host,omitempty"`
-	PublicKey  secret.Secret  `toml:"public_key,omitempty"`
+	SSH        SSHDestination `yaml:"ssh,omitempty"`
+	SSHKeyFile string         `yaml:"ssh_key_file,omitempty"`
+	// TCP is the address and port of the machine's API server.
+	// The pointer is used to omit the field when not set. Otherwise, yaml marshalling includes an empty object.
+	TCP       *netip.AddrPort `yaml:"tcp,omitempty"`
+	Host      string          `yaml:"host,omitempty"`
+	PublicKey secret.Secret   `yaml:"public_key,omitempty"`
 }
 
 // SSHDestination represents an SSH destination string in the canonical form of "user@host:port".

internal/cli/config/context.go

@@ -0,0 +1,6 @@
+package config
+
+type Context struct {
+	Name        string              `yaml:"-"`
+	Connections []MachineConnection `yaml:"connections"`
+}

internal/cli/flags.go

@@ -0,0 +1,23 @@
+package cli
+
+import (
+	"strings"
+)
+
+// ExpandCommaSeparatedValues takes a slice of strings and expands any comma-separated values into individual elements.
+func ExpandCommaSeparatedValues(values []string) []string {
+	if len(values) == 0 {
+		return nil
+	}
+
+	var expanded []string
+	for _, value := range values {
+		for _, v := range strings.Split(value, ",") {
+			if v = strings.TrimSpace(v); v != "" {
+				expanded = append(expanded, v)
+			}
+		}
+	}
+
+	return expanded
+}

internal/cli/machine.go

@@ -4,6 +4,8 @@ import (
 	"context"
 	"fmt"
 	"os"
+	"strings"
+
 	"github.com/psviderski/uncloud/internal/sshexec"
 )
 
@@ -17,36 +19,38 @@ type RemoteMachine struct {
 	KeyPath string
 }
 
-func installCmd(user string) string {
-	sudoPrefix := "sudo"
+func installCmd(user string, version string) string {
+	sudoPrefix := ""
+	var env []string
+
 	// Add the SSH user (non-root) to the uncloud group to allow access to the Uncloud daemon unix socket.
-	env := "UNCLOUD_GROUP_ADD_USER=" + user
-
-	curlBashCmd := fmt.Sprintf(
-		"curl -fsSL %s | %s %s bash", sshexec.Quote(installScriptURL), sudoPrefix, sshexec.Quote(env),
-	)
-
-	if user == "root" {
-		curlBashCmd = fmt.Sprintf(
-			"curl -fsSL %s | bash", sshexec.Quote(installScriptURL),
-		)
+	if user != "root" {
+		sudoPrefix = "sudo"
+		env = append(env, "UNCLOUD_GROUP_ADD_USER="+sshexec.Quote(user))
 	}
+	if version != "" {
+		env = append(env, "UNCLOUD_VERSION="+sshexec.Quote(version))
+	}
+
+	envCmd := strings.Join(env, " ")
+	curlBashCmd := fmt.Sprintf("curl -fsSL %s | %s %s bash", sshexec.Quote(installScriptURL), sudoPrefix, envCmd)
 
 	return curlBashCmd
 }
 
 // provisionMachine provisions the remote machine by downloading the Uncloud install script from GitHub and running it.
-func provisionMachine(ctx context.Context, exec sshexec.Executor) error {
+// If version is specified, it will be passed to the install script as UNCLOUD_VERSION environment variable.
+func provisionMachine(ctx context.Context, exec sshexec.Executor, version string) error {
 	user, err := exec.Run(ctx, "whoami")
 	if err != nil {
 		return fmt.Errorf("run whoami: %w", err)
 	}
 
-	installCmd := installCmd(user)
+	cmd := installCmd(user, version)
 
 	fmt.Println("Downloading Uncloud install script:", installScriptURL)
 
-	cmd := sshexec.QuoteCommand("bash", "-c", "set -o pipefail; "+installCmd)
+	cmd = sshexec.QuoteCommand("bash", "-c", "set -o pipefail; "+cmd)
 	if err = exec.Stream(ctx, cmd, os.Stdout, os.Stderr); err != nil {
 		return fmt.Errorf("download and run install script: %w", err)
 	}

internal/cli/machine_test.go

@@ -8,12 +8,29 @@ import (
 
 func TestInstallCmd(t *testing.T) {
 	t.Run("root", func(t *testing.T) {
-		cmd := installCmd("root")
+		cmd := installCmd("root", "")
 		assert.NotContains(t, cmd, "sudo")
+		assert.NotContains(t, cmd, "UNCLOUD_GROUP_ADD_USER")
+	})
+
+	// Test with version
+	t.Run("root with version", func(t *testing.T) {
+		cmd := installCmd("root", "v1.2.3")
+		assert.NotContains(t, cmd, "sudo")
+		assert.NotContains(t, cmd, "UNCLOUD_GROUP_ADD_USER")
+		assert.Contains(t, cmd, "UNCLOUD_VERSION=v1.2.3")
 	})
 
 	t.Run("nonroot", func(t *testing.T) {
-		cmd := installCmd("nonroot")
+		cmd := installCmd("nonroot", "")
 		assert.Contains(t, cmd, "sudo")
+		assert.Contains(t, cmd, "UNCLOUD_GROUP_ADD_USER=nonroot")
+	})
+
+	t.Run("nonroot with version", func(t *testing.T) {
+		cmd := installCmd("nonroot", "v1.2.3")
+		assert.Contains(t, cmd, "sudo")
+		assert.Contains(t, cmd, "UNCLOUD_GROUP_ADD_USER=nonroot")
+		assert.Contains(t, cmd, "UNCLOUD_VERSION=v1.2.3")
 	})
 }

internal/cli/prompt.go

@@ -14,7 +14,7 @@ func Confirm() (bool, error) {
 				Negative("No").
 				Value(&confirmed),
 		),
-	)
+	).WithAccessible(true)
 	if err := form.Run(); err != nil {
 		return false, err
 	}

internal/log/handler.go

@@ -45,11 +45,19 @@ func (h *SlogTextHandler) Enabled(ctx context.Context, level slog.Level) bool {
 }
 
 func (h *SlogTextHandler) WithAttrs(attrs []slog.Attr) slog.Handler {
-	return h.TextHandler.WithAttrs(attrs)
+	return &SlogTextHandler{
+		TextHandler: h.TextHandler.WithAttrs(attrs).(*slog.TextHandler),
+		opts:        h.opts,
+		w:           h.w,
+	}
 }
 
 func (h *SlogTextHandler) WithGroup(name string) slog.Handler {
-	return h.TextHandler.WithGroup(name)
+	return &SlogTextHandler{
+		TextHandler: h.TextHandler.WithGroup(name).(*slog.TextHandler),
+		opts:        h.opts,
+		w:           h.w,
+	}
 }
 
 func (h *SlogTextHandler) Handle(ctx context.Context, r slog.Record) error {

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

@@ -982,6 +982,309 @@ func (x *RemoteImage) GetManifest() []byte {
 	return nil
 }
 
+type CreateVolumeRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// JSON serialised volume.CreateOptions.
+	Options []byte `protobuf:"bytes,1,opt,name=options,proto3" json:"options,omitempty"`
+}
+
+func (x *CreateVolumeRequest) Reset() {
+	*x = CreateVolumeRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_internal_machine_api_pb_docker_proto_msgTypes[18]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *CreateVolumeRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*CreateVolumeRequest) ProtoMessage() {}
+
+func (x *CreateVolumeRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_internal_machine_api_pb_docker_proto_msgTypes[18]
+	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 CreateVolumeRequest.ProtoReflect.Descriptor instead.
+func (*CreateVolumeRequest) Descriptor() ([]byte, []int) {
+	return file_internal_machine_api_pb_docker_proto_rawDescGZIP(), []int{18}
+}
+
+func (x *CreateVolumeRequest) GetOptions() []byte {
+	if x != nil {
+		return x.Options
+	}
+	return nil
+}
+
+type CreateVolumeResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// JSON serialised volume.Volume.
+	Volume []byte `protobuf:"bytes,1,opt,name=volume,proto3" json:"volume,omitempty"`
+}
+
+func (x *CreateVolumeResponse) Reset() {
+	*x = CreateVolumeResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_internal_machine_api_pb_docker_proto_msgTypes[19]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *CreateVolumeResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*CreateVolumeResponse) ProtoMessage() {}
+
+func (x *CreateVolumeResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_internal_machine_api_pb_docker_proto_msgTypes[19]
+	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 CreateVolumeResponse.ProtoReflect.Descriptor instead.
+func (*CreateVolumeResponse) Descriptor() ([]byte, []int) {
+	return file_internal_machine_api_pb_docker_proto_rawDescGZIP(), []int{19}
+}
+
+func (x *CreateVolumeResponse) GetVolume() []byte {
+	if x != nil {
+		return x.Volume
+	}
+	return nil
+}
+
+type ListVolumesRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// JSON serialised volume.ListOptions.
+	Options []byte `protobuf:"bytes,1,opt,name=options,proto3" json:"options,omitempty"`
+}
+
+func (x *ListVolumesRequest) Reset() {
+	*x = ListVolumesRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_internal_machine_api_pb_docker_proto_msgTypes[20]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *ListVolumesRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ListVolumesRequest) ProtoMessage() {}
+
+func (x *ListVolumesRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_internal_machine_api_pb_docker_proto_msgTypes[20]
+	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 ListVolumesRequest.ProtoReflect.Descriptor instead.
+func (*ListVolumesRequest) Descriptor() ([]byte, []int) {
+	return file_internal_machine_api_pb_docker_proto_rawDescGZIP(), []int{20}
+}
+
+func (x *ListVolumesRequest) GetOptions() []byte {
+	if x != nil {
+		return x.Options
+	}
+	return nil
+}
+
+type ListVolumesResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// Must contain only one repeated messages field to allow broadcasting ListVolumes requests to multiple machines.
+	Messages []*MachineVolumes `protobuf:"bytes,1,rep,name=messages,proto3" json:"messages,omitempty"`
+}
+
+func (x *ListVolumesResponse) Reset() {
+	*x = ListVolumesResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_internal_machine_api_pb_docker_proto_msgTypes[21]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *ListVolumesResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*ListVolumesResponse) ProtoMessage() {}
+
+func (x *ListVolumesResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_internal_machine_api_pb_docker_proto_msgTypes[21]
+	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 ListVolumesResponse.ProtoReflect.Descriptor instead.
+func (*ListVolumesResponse) Descriptor() ([]byte, []int) {
+	return file_internal_machine_api_pb_docker_proto_rawDescGZIP(), []int{21}
+}
+
+func (x *ListVolumesResponse) GetMessages() []*MachineVolumes {
+	if x != nil {
+		return x.Messages
+	}
+	return nil
+}
+
+type MachineVolumes struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Metadata *Metadata `protobuf:"bytes,1,opt,name=metadata,proto3" json:"metadata,omitempty"`
+	// JSON serialised volume.ListResponse.
+	Response []byte `protobuf:"bytes,2,opt,name=response,proto3" json:"response,omitempty"`
+}
+
+func (x *MachineVolumes) Reset() {
+	*x = MachineVolumes{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_internal_machine_api_pb_docker_proto_msgTypes[22]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *MachineVolumes) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*MachineVolumes) ProtoMessage() {}
+
+func (x *MachineVolumes) ProtoReflect() protoreflect.Message {
+	mi := &file_internal_machine_api_pb_docker_proto_msgTypes[22]
+	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 MachineVolumes.ProtoReflect.Descriptor instead.
+func (*MachineVolumes) Descriptor() ([]byte, []int) {
+	return file_internal_machine_api_pb_docker_proto_rawDescGZIP(), []int{22}
+}
+
+func (x *MachineVolumes) GetMetadata() *Metadata {
+	if x != nil {
+		return x.Metadata
+	}
+	return nil
+}
+
+func (x *MachineVolumes) GetResponse() []byte {
+	if x != nil {
+		return x.Response
+	}
+	return nil
+}
+
+type RemoveVolumeRequest struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Id    string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
+	Force bool   `protobuf:"varint,2,opt,name=force,proto3" json:"force,omitempty"`
+}
+
+func (x *RemoveVolumeRequest) Reset() {
+	*x = RemoveVolumeRequest{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_internal_machine_api_pb_docker_proto_msgTypes[23]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *RemoveVolumeRequest) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*RemoveVolumeRequest) ProtoMessage() {}
+
+func (x *RemoveVolumeRequest) ProtoReflect() protoreflect.Message {
+	mi := &file_internal_machine_api_pb_docker_proto_msgTypes[23]
+	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 RemoveVolumeRequest.ProtoReflect.Descriptor instead.
+func (*RemoveVolumeRequest) Descriptor() ([]byte, []int) {
+	return file_internal_machine_api_pb_docker_proto_rawDescGZIP(), []int{23}
+}
+
+func (x *RemoveVolumeRequest) GetId() string {
+	if x != nil {
+		return x.Id
+	}
+	return ""
+}
+
+func (x *RemoveVolumeRequest) GetForce() bool {
+	if x != nil {
+		return x.Force
+	}
+	return false
+}
+
 type CreateServiceContainerRequest struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -996,7 +1299,7 @@ type CreateServiceContainerRequest struct {
 func (x *CreateServiceContainerRequest) Reset() {
 	*x = CreateServiceContainerRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_internal_machine_api_pb_docker_proto_msgTypes[18]
+		mi := &file_internal_machine_api_pb_docker_proto_msgTypes[24]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -1009,7 +1312,7 @@ func (x *CreateServiceContainerRequest) String() string {
 func (*CreateServiceContainerRequest) ProtoMessage() {}
 
 func (x *CreateServiceContainerRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_internal_machine_api_pb_docker_proto_msgTypes[18]
+	mi := &file_internal_machine_api_pb_docker_proto_msgTypes[24]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1022,7 +1325,7 @@ func (x *CreateServiceContainerRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use CreateServiceContainerRequest.ProtoReflect.Descriptor instead.
 func (*CreateServiceContainerRequest) Descriptor() ([]byte, []int) {
-	return file_internal_machine_api_pb_docker_proto_rawDescGZIP(), []int{18}
+	return file_internal_machine_api_pb_docker_proto_rawDescGZIP(), []int{24}
 }
 
 func (x *CreateServiceContainerRequest) GetServiceId() string {
@@ -1060,7 +1363,7 @@ type ServiceContainer struct {
 func (x *ServiceContainer) Reset() {
 	*x = ServiceContainer{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_internal_machine_api_pb_docker_proto_msgTypes[19]
+		mi := &file_internal_machine_api_pb_docker_proto_msgTypes[25]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -1073,7 +1376,7 @@ func (x *ServiceContainer) String() string {
 func (*ServiceContainer) ProtoMessage() {}
 
 func (x *ServiceContainer) ProtoReflect() protoreflect.Message {
-	mi := &file_internal_machine_api_pb_docker_proto_msgTypes[19]
+	mi := &file_internal_machine_api_pb_docker_proto_msgTypes[25]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1086,7 +1389,7 @@ func (x *ServiceContainer) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ServiceContainer.ProtoReflect.Descriptor instead.
 func (*ServiceContainer) Descriptor() ([]byte, []int) {
-	return file_internal_machine_api_pb_docker_proto_rawDescGZIP(), []int{19}
+	return file_internal_machine_api_pb_docker_proto_rawDescGZIP(), []int{25}
 }
 
 func (x *ServiceContainer) GetContainer() []byte {
@@ -1116,7 +1419,7 @@ type ListServiceContainersRequest struct {
 func (x *ListServiceContainersRequest) Reset() {
 	*x = ListServiceContainersRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_internal_machine_api_pb_docker_proto_msgTypes[20]
+		mi := &file_internal_machine_api_pb_docker_proto_msgTypes[26]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -1129,7 +1432,7 @@ func (x *ListServiceContainersRequest) String() string {
 func (*ListServiceContainersRequest) ProtoMessage() {}
 
 func (x *ListServiceContainersRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_internal_machine_api_pb_docker_proto_msgTypes[20]
+	mi := &file_internal_machine_api_pb_docker_proto_msgTypes[26]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1142,7 +1445,7 @@ func (x *ListServiceContainersRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ListServiceContainersRequest.ProtoReflect.Descriptor instead.
 func (*ListServiceContainersRequest) Descriptor() ([]byte, []int) {
-	return file_internal_machine_api_pb_docker_proto_rawDescGZIP(), []int{20}
+	return file_internal_machine_api_pb_docker_proto_rawDescGZIP(), []int{26}
 }
 
 func (x *ListServiceContainersRequest) GetServiceId() string {
@@ -1172,7 +1475,7 @@ type ListServiceContainersResponse struct {
 func (x *ListServiceContainersResponse) Reset() {
 	*x = ListServiceContainersResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_internal_machine_api_pb_docker_proto_msgTypes[21]
+		mi := &file_internal_machine_api_pb_docker_proto_msgTypes[27]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -1185,7 +1488,7 @@ func (x *ListServiceContainersResponse) String() string {
 func (*ListServiceContainersResponse) ProtoMessage() {}
 
 func (x *ListServiceContainersResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_internal_machine_api_pb_docker_proto_msgTypes[21]
+	mi := &file_internal_machine_api_pb_docker_proto_msgTypes[27]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1198,7 +1501,7 @@ func (x *ListServiceContainersResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use ListServiceContainersResponse.ProtoReflect.Descriptor instead.
 func (*ListServiceContainersResponse) Descriptor() ([]byte, []int) {
-	return file_internal_machine_api_pb_docker_proto_rawDescGZIP(), []int{21}
+	return file_internal_machine_api_pb_docker_proto_rawDescGZIP(), []int{27}
 }
 
 func (x *ListServiceContainersResponse) GetMessages() []*MachineServiceContainers {
@@ -1220,7 +1523,7 @@ type MachineServiceContainers struct {
 func (x *MachineServiceContainers) Reset() {
 	*x = MachineServiceContainers{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_internal_machine_api_pb_docker_proto_msgTypes[22]
+		mi := &file_internal_machine_api_pb_docker_proto_msgTypes[28]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -1233,7 +1536,7 @@ func (x *MachineServiceContainers) String() string {
 func (*MachineServiceContainers) ProtoMessage() {}
 
 func (x *MachineServiceContainers) ProtoReflect() protoreflect.Message {
-	mi := &file_internal_machine_api_pb_docker_proto_msgTypes[22]
+	mi := &file_internal_machine_api_pb_docker_proto_msgTypes[28]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -1246,7 +1549,7 @@ func (x *MachineServiceContainers) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use MachineServiceContainers.ProtoReflect.Descriptor instead.
 func (*MachineServiceContainers) Descriptor() ([]byte, []int) {
-	return file_internal_machine_api_pb_docker_proto_rawDescGZIP(), []int{22}
+	return file_internal_machine_api_pb_docker_proto_rawDescGZIP(), []int{28}
 }
 
 func (x *MachineServiceContainers) GetMetadata() *Metadata {
@@ -1352,108 +1655,143 @@ var file_internal_machine_api_pb_docker_proto_rawDesc = []byte{
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+	0x65, 0x73, 0x74, 0x1a, 0x15, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x53, 0x65, 0x72, 0x76, 0x69, 0x63,
+	0x65, 0x43, 0x6f, 0x6e, 0x74, 0x61, 0x69, 0x6e, 0x65, 0x72, 0x12, 0x5e, 0x0a, 0x15, 0x4c, 0x69,
+	0x73, 0x74, 0x53, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x43, 0x6f, 0x6e, 0x74, 0x61, 0x69, 0x6e,
+	0x65, 0x72, 0x73, 0x12, 0x21, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x4c, 0x69, 0x73, 0x74, 0x53, 0x65,
+	0x72, 0x76, 0x69, 0x63, 0x65, 0x43, 0x6f, 0x6e, 0x74, 0x61, 0x69, 0x6e, 0x65, 0x72, 0x73, 0x52,
+	0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x22, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x4c, 0x69, 0x73,
+	0x74, 0x53, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x43, 0x6f, 0x6e, 0x74, 0x61, 0x69, 0x6e, 0x65,
+	0x72, 0x73, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x12, 0x4d, 0x0a, 0x16, 0x52, 0x65,
+	0x6d, 0x6f, 0x76, 0x65, 0x53, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x43, 0x6f, 0x6e, 0x74, 0x61,
+	0x69, 0x6e, 0x65, 0x72, 0x12, 0x1b, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x52, 0x65, 0x6d, 0x6f, 0x76,
+	0x65, 0x43, 0x6f, 0x6e, 0x74, 0x61, 0x69, 0x6e, 0x65, 0x72, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73,
+	0x74, 0x1a, 0x16, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f,
+	0x62, 0x75, 0x66, 0x2e, 0x45, 0x6d, 0x70, 0x74, 0x79, 0x42, 0x37, 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 (
@@ -1468,7 +1806,7 @@ func file_internal_machine_api_pb_docker_proto_rawDescGZIP() []byte {
 	return file_internal_machine_api_pb_docker_proto_rawDescData
 }
 
-var file_internal_machine_api_pb_docker_proto_msgTypes = make([]protoimpl.MessageInfo, 23)
+var file_internal_machine_api_pb_docker_proto_msgTypes = make([]protoimpl.MessageInfo, 29)
 var file_internal_machine_api_pb_docker_proto_goTypes = []any{
 	(*CreateContainerRequest)(nil),        // 0: api.CreateContainerRequest
 	(*CreateContainerResponse)(nil),       // 1: api.CreateContainerResponse
@@ -1488,55 +1826,69 @@ var file_internal_machine_api_pb_docker_proto_goTypes = []any{
 	(*InspectRemoteImageRequest)(nil),     // 15: api.InspectRemoteImageRequest
 	(*InspectRemoteImageResponse)(nil),    // 16: api.InspectRemoteImageResponse
 	(*RemoteImage)(nil),                   // 17: api.RemoteImage
-	(*CreateServiceContainerRequest)(nil), // 18: api.CreateServiceContainerRequest
-	(*ServiceContainer)(nil),              // 19: api.ServiceContainer
-	(*ListServiceContainersRequest)(nil),  // 20: api.ListServiceContainersRequest
-	(*ListServiceContainersResponse)(nil), // 21: api.ListServiceContainersResponse
-	(*MachineServiceContainers)(nil),      // 22: api.MachineServiceContainers
-	(*Metadata)(nil),                      // 23: api.Metadata
-	(*emptypb.Empty)(nil),                 // 24: google.protobuf.Empty
+	(*CreateVolumeRequest)(nil),           // 18: api.CreateVolumeRequest
+	(*CreateVolumeResponse)(nil),          // 19: api.CreateVolumeResponse
+	(*ListVolumesRequest)(nil),            // 20: api.ListVolumesRequest
+	(*ListVolumesResponse)(nil),           // 21: api.ListVolumesResponse
+	(*MachineVolumes)(nil),                // 22: api.MachineVolumes
+	(*RemoveVolumeRequest)(nil),           // 23: api.RemoveVolumeRequest
+	(*CreateServiceContainerRequest)(nil), // 24: api.CreateServiceContainerRequest
+	(*ServiceContainer)(nil),              // 25: api.ServiceContainer
+	(*ListServiceContainersRequest)(nil),  // 26: api.ListServiceContainersRequest
+	(*ListServiceContainersResponse)(nil), // 27: api.ListServiceContainersResponse
+	(*MachineServiceContainers)(nil),      // 28: api.MachineServiceContainers
+	(*Metadata)(nil),                      // 29: api.Metadata
+	(*emptypb.Empty)(nil),                 // 30: google.protobuf.Empty
 }
 var file_internal_machine_api_pb_docker_proto_depIdxs = []int32{
 	8,  // 0: api.ListContainersResponse.messages:type_name -> api.MachineContainers
-	23, // 1: api.MachineContainers.metadata:type_name -> api.Metadata
+	29, // 1: api.MachineContainers.metadata:type_name -> api.Metadata
 	14, // 2: api.InspectImageResponse.messages:type_name -> api.Image
-	23, // 3: api.Image.metadata:type_name -> api.Metadata
+	29, // 3: api.Image.metadata:type_name -> api.Metadata
 	17, // 4: api.InspectRemoteImageResponse.messages:type_name -> api.RemoteImage
-	23, // 5: api.RemoteImage.metadata:type_name -> api.Metadata
-	22, // 6: api.ListServiceContainersResponse.messages:type_name -> api.MachineServiceContainers
-	23, // 7: api.MachineServiceContainers.metadata:type_name -> api.Metadata
-	19, // 8: api.MachineServiceContainers.containers:type_name -> api.ServiceContainer
-	0,  // 9: api.Docker.CreateContainer:input_type -> api.CreateContainerRequest
-	2,  // 10: api.Docker.InspectContainer:input_type -> api.InspectContainerRequest
-	4,  // 11: api.Docker.StartContainer:input_type -> api.StartContainerRequest
-	5,  // 12: api.Docker.StopContainer:input_type -> api.StopContainerRequest
-	6,  // 13: api.Docker.ListContainers:input_type -> api.ListContainersRequest
-	9,  // 14: api.Docker.RemoveContainer:input_type -> api.RemoveContainerRequest
-	10, // 15: api.Docker.PullImage:input_type -> api.PullImageRequest
-	12, // 16: api.Docker.InspectImage:input_type -> api.InspectImageRequest
-	15, // 17: api.Docker.InspectRemoteImage:input_type -> api.InspectRemoteImageRequest
-	18, // 18: api.Docker.CreateServiceContainer:input_type -> api.CreateServiceContainerRequest
-	2,  // 19: api.Docker.InspectServiceContainer:input_type -> api.InspectContainerRequest
-	20, // 20: api.Docker.ListServiceContainers:input_type -> api.ListServiceContainersRequest
-	9,  // 21: api.Docker.RemoveServiceContainer:input_type -> api.RemoveContainerRequest
-	1,  // 22: api.Docker.CreateContainer:output_type -> api.CreateContainerResponse
-	3,  // 23: api.Docker.InspectContainer:output_type -> api.InspectContainerResponse
-	24, // 24: api.Docker.StartContainer:output_type -> google.protobuf.Empty
-	24, // 25: api.Docker.StopContainer:output_type -> google.protobuf.Empty
-	7,  // 26: api.Docker.ListContainers:output_type -> api.ListContainersResponse
-	24, // 27: api.Docker.RemoveContainer:output_type -> google.protobuf.Empty
-	11, // 28: api.Docker.PullImage:output_type -> api.JSONMessage
-	13, // 29: api.Docker.InspectImage:output_type -> api.InspectImageResponse
-	16, // 30: api.Docker.InspectRemoteImage:output_type -> api.InspectRemoteImageResponse
-	1,  // 31: api.Docker.CreateServiceContainer:output_type -> api.CreateContainerResponse
-	19, // 32: api.Docker.InspectServiceContainer:output_type -> api.ServiceContainer
-	21, // 33: api.Docker.ListServiceContainers:output_type -> api.ListServiceContainersResponse
-	24, // 34: api.Docker.RemoveServiceContainer:output_type -> google.protobuf.Empty
-	22, // [22:35] is the sub-list for method output_type
-	9,  // [9:22] 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
+	29, // 5: api.RemoteImage.metadata:type_name -> api.Metadata
+	22, // 6: api.ListVolumesResponse.messages:type_name -> api.MachineVolumes
+	29, // 7: api.MachineVolumes.metadata:type_name -> api.Metadata
+	28, // 8: api.ListServiceContainersResponse.messages:type_name -> api.MachineServiceContainers
+	29, // 9: api.MachineServiceContainers.metadata:type_name -> api.Metadata
+	25, // 10: api.MachineServiceContainers.containers:type_name -> api.ServiceContainer
+	0,  // 11: api.Docker.CreateContainer:input_type -> api.CreateContainerRequest
+	2,  // 12: api.Docker.InspectContainer:input_type -> api.InspectContainerRequest
+	4,  // 13: api.Docker.StartContainer:input_type -> api.StartContainerRequest
+	5,  // 14: api.Docker.StopContainer:input_type -> api.StopContainerRequest
+	6,  // 15: api.Docker.ListContainers:input_type -> api.ListContainersRequest
+	9,  // 16: api.Docker.RemoveContainer:input_type -> api.RemoveContainerRequest
+	10, // 17: api.Docker.PullImage:input_type -> api.PullImageRequest
+	12, // 18: api.Docker.InspectImage:input_type -> api.InspectImageRequest
+	15, // 19: api.Docker.InspectRemoteImage:input_type -> api.InspectRemoteImageRequest
+	18, // 20: api.Docker.CreateVolume:input_type -> api.CreateVolumeRequest
+	20, // 21: api.Docker.ListVolumes:input_type -> api.ListVolumesRequest
+	23, // 22: api.Docker.RemoveVolume:input_type -> api.RemoveVolumeRequest
+	24, // 23: api.Docker.CreateServiceContainer:input_type -> api.CreateServiceContainerRequest
+	2,  // 24: api.Docker.InspectServiceContainer:input_type -> api.InspectContainerRequest
+	26, // 25: api.Docker.ListServiceContainers:input_type -> api.ListServiceContainersRequest
+	9,  // 26: api.Docker.RemoveServiceContainer:input_type -> api.RemoveContainerRequest
+	1,  // 27: api.Docker.CreateContainer:output_type -> api.CreateContainerResponse
+	3,  // 28: api.Docker.InspectContainer:output_type -> api.InspectContainerResponse
+	30, // 29: api.Docker.StartContainer:output_type -> google.protobuf.Empty
+	30, // 30: api.Docker.StopContainer:output_type -> google.protobuf.Empty
+	7,  // 31: api.Docker.ListContainers:output_type -> api.ListContainersResponse
+	30, // 32: api.Docker.RemoveContainer:output_type -> google.protobuf.Empty
+	11, // 33: api.Docker.PullImage:output_type -> api.JSONMessage
+	13, // 34: api.Docker.InspectImage:output_type -> api.InspectImageResponse
+	16, // 35: api.Docker.InspectRemoteImage:output_type -> api.InspectRemoteImageResponse
+	19, // 36: api.Docker.CreateVolume:output_type -> api.CreateVolumeResponse
+	21, // 37: api.Docker.ListVolumes:output_type -> api.ListVolumesResponse
+	30, // 38: api.Docker.RemoveVolume:output_type -> google.protobuf.Empty
+	1,  // 39: api.Docker.CreateServiceContainer:output_type -> api.CreateContainerResponse
+	25, // 40: api.Docker.InspectServiceContainer:output_type -> api.ServiceContainer
+	27, // 41: api.Docker.ListServiceContainers:output_type -> api.ListServiceContainersResponse
+	30, // 42: api.Docker.RemoveServiceContainer:output_type -> google.protobuf.Empty
+	27, // [27:43] is the sub-list for method output_type
+	11, // [11:27] is the sub-list for method input_type
+	11, // [11:11] is the sub-list for extension type_name
+	11, // [11:11] is the sub-list for extension extendee
+	0,  // [0:11] is the sub-list for field type_name
 }
 
 func init() { file_internal_machine_api_pb_docker_proto_init() }
@@ -1763,7 +2115,7 @@ func file_internal_machine_api_pb_docker_proto_init() {
 			}
 		}
 		file_internal_machine_api_pb_docker_proto_msgTypes[18].Exporter = func(v any, i int) any {
-			switch v := v.(*CreateServiceContainerRequest); i {
+			switch v := v.(*CreateVolumeRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -1775,7 +2127,7 @@ func file_internal_machine_api_pb_docker_proto_init() {
 			}
 		}
 		file_internal_machine_api_pb_docker_proto_msgTypes[19].Exporter = func(v any, i int) any {
-			switch v := v.(*ServiceContainer); i {
+			switch v := v.(*CreateVolumeResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -1787,7 +2139,7 @@ func file_internal_machine_api_pb_docker_proto_init() {
 			}
 		}
 		file_internal_machine_api_pb_docker_proto_msgTypes[20].Exporter = func(v any, i int) any {
-			switch v := v.(*ListServiceContainersRequest); i {
+			switch v := v.(*ListVolumesRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -1799,7 +2151,7 @@ func file_internal_machine_api_pb_docker_proto_init() {
 			}
 		}
 		file_internal_machine_api_pb_docker_proto_msgTypes[21].Exporter = func(v any, i int) any {
-			switch v := v.(*ListServiceContainersResponse); i {
+			switch v := v.(*ListVolumesResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -1811,6 +2163,78 @@ func file_internal_machine_api_pb_docker_proto_init() {
 			}
 		}
 		file_internal_machine_api_pb_docker_proto_msgTypes[22].Exporter = func(v any, i int) any {
+			switch v := v.(*MachineVolumes); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_internal_machine_api_pb_docker_proto_msgTypes[23].Exporter = func(v any, i int) any {
+			switch v := v.(*RemoveVolumeRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_internal_machine_api_pb_docker_proto_msgTypes[24].Exporter = func(v any, i int) any {
+			switch v := v.(*CreateServiceContainerRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_internal_machine_api_pb_docker_proto_msgTypes[25].Exporter = func(v any, i int) any {
+			switch v := v.(*ServiceContainer); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_internal_machine_api_pb_docker_proto_msgTypes[26].Exporter = func(v any, i int) any {
+			switch v := v.(*ListServiceContainersRequest); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_internal_machine_api_pb_docker_proto_msgTypes[27].Exporter = func(v any, i int) any {
+			switch v := v.(*ListServiceContainersResponse); i {
+			case 0:
+				return &v.state
+			case 1:
+				return &v.sizeCache
+			case 2:
+				return &v.unknownFields
+			default:
+				return nil
+			}
+		}
+		file_internal_machine_api_pb_docker_proto_msgTypes[28].Exporter = func(v any, i int) any {
 			switch v := v.(*MachineServiceContainers); i {
 			case 0:
 				return &v.state
@@ -1829,7 +2253,7 @@ func file_internal_machine_api_pb_docker_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_internal_machine_api_pb_docker_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   23,
+			NumMessages:   29,
 			NumExtensions: 0,
 			NumServices:   1,
 		},

internal/machine/api/pb/docker.proto

@@ -14,12 +14,17 @@ service Docker {
   rpc StopContainer(StopContainerRequest) returns (google.protobuf.Empty);
   rpc ListContainers(ListContainersRequest) returns (ListContainersResponse);
   rpc RemoveContainer(RemoveContainerRequest) returns (google.protobuf.Empty);
+
   rpc PullImage(PullImageRequest) returns (stream JSONMessage);
   rpc InspectImage(InspectImageRequest) returns (InspectImageResponse);
   // InspectRemoteImage returns the image metadata for an image in a remote registry using the machine's
   // Docker auth credentials if necessary.
   rpc InspectRemoteImage(InspectRemoteImageRequest) returns (InspectRemoteImageResponse);
 
+  rpc CreateVolume(CreateVolumeRequest) returns (CreateVolumeResponse);
+  rpc ListVolumes(ListVolumesRequest) returns (ListVolumesResponse);
+  rpc RemoveVolume(RemoveVolumeRequest) returns (google.protobuf.Empty);
+
   rpc CreateServiceContainer(CreateServiceContainerRequest) returns (CreateContainerResponse);
   rpc InspectServiceContainer(InspectContainerRequest) returns (ServiceContainer);
   rpc ListServiceContainers(ListServiceContainersRequest) returns (ListServiceContainersResponse);
@@ -129,6 +134,37 @@ message RemoteImage {
   bytes manifest = 3;
 }
 
+message CreateVolumeRequest {
+  // JSON serialised volume.CreateOptions.
+  bytes options = 1;
+}
+
+message CreateVolumeResponse {
+  // JSON serialised volume.Volume.
+  bytes volume = 1;
+}
+
+message ListVolumesRequest {
+  // JSON serialised volume.ListOptions.
+  bytes options = 1;
+}
+
+message ListVolumesResponse {
+  // Must contain only one repeated messages field to allow broadcasting ListVolumes requests to multiple machines.
+  repeated MachineVolumes messages = 1;
+}
+
+message MachineVolumes {
+  Metadata metadata = 1;
+  // JSON serialised volume.ListResponse.
+  bytes response = 2;
+}
+
+message RemoveVolumeRequest {
+  string id = 1;
+  bool force = 2;
+}
+
 message CreateServiceContainerRequest {
   string service_id = 1;
   // JSON serialised api.ServiceSpec.

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

@@ -29,6 +29,9 @@ const (
 	Docker_PullImage_FullMethodName               = "/api.Docker/PullImage"
 	Docker_InspectImage_FullMethodName            = "/api.Docker/InspectImage"
 	Docker_InspectRemoteImage_FullMethodName      = "/api.Docker/InspectRemoteImage"
+	Docker_CreateVolume_FullMethodName            = "/api.Docker/CreateVolume"
+	Docker_ListVolumes_FullMethodName             = "/api.Docker/ListVolumes"
+	Docker_RemoveVolume_FullMethodName            = "/api.Docker/RemoveVolume"
 	Docker_CreateServiceContainer_FullMethodName  = "/api.Docker/CreateServiceContainer"
 	Docker_InspectServiceContainer_FullMethodName = "/api.Docker/InspectServiceContainer"
 	Docker_ListServiceContainers_FullMethodName   = "/api.Docker/ListServiceContainers"
@@ -50,6 +53,9 @@ type DockerClient interface {
 	// InspectRemoteImage returns the image metadata for an image in a remote registry using the machine's
 	// Docker auth credentials if necessary.
 	InspectRemoteImage(ctx context.Context, in *InspectRemoteImageRequest, opts ...grpc.CallOption) (*InspectRemoteImageResponse, error)
+	CreateVolume(ctx context.Context, in *CreateVolumeRequest, opts ...grpc.CallOption) (*CreateVolumeResponse, error)
+	ListVolumes(ctx context.Context, in *ListVolumesRequest, opts ...grpc.CallOption) (*ListVolumesResponse, error)
+	RemoveVolume(ctx context.Context, in *RemoveVolumeRequest, opts ...grpc.CallOption) (*emptypb.Empty, error)
 	CreateServiceContainer(ctx context.Context, in *CreateServiceContainerRequest, opts ...grpc.CallOption) (*CreateContainerResponse, error)
 	InspectServiceContainer(ctx context.Context, in *InspectContainerRequest, opts ...grpc.CallOption) (*ServiceContainer, error)
 	ListServiceContainers(ctx context.Context, in *ListServiceContainersRequest, opts ...grpc.CallOption) (*ListServiceContainersResponse, error)
@@ -163,6 +169,36 @@ func (c *dockerClient) InspectRemoteImage(ctx context.Context, in *InspectRemote
 	return out, nil
 }
 
+func (c *dockerClient) CreateVolume(ctx context.Context, in *CreateVolumeRequest, opts ...grpc.CallOption) (*CreateVolumeResponse, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(CreateVolumeResponse)
+	err := c.cc.Invoke(ctx, Docker_CreateVolume_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *dockerClient) ListVolumes(ctx context.Context, in *ListVolumesRequest, opts ...grpc.CallOption) (*ListVolumesResponse, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(ListVolumesResponse)
+	err := c.cc.Invoke(ctx, Docker_ListVolumes_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
+func (c *dockerClient) RemoveVolume(ctx context.Context, in *RemoveVolumeRequest, opts ...grpc.CallOption) (*emptypb.Empty, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(emptypb.Empty)
+	err := c.cc.Invoke(ctx, Docker_RemoveVolume_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 func (c *dockerClient) CreateServiceContainer(ctx context.Context, in *CreateServiceContainerRequest, opts ...grpc.CallOption) (*CreateContainerResponse, error) {
 	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
 	out := new(CreateContainerResponse)
@@ -218,6 +254,9 @@ type DockerServer interface {
 	// InspectRemoteImage returns the image metadata for an image in a remote registry using the machine's
 	// Docker auth credentials if necessary.
 	InspectRemoteImage(context.Context, *InspectRemoteImageRequest) (*InspectRemoteImageResponse, error)
+	CreateVolume(context.Context, *CreateVolumeRequest) (*CreateVolumeResponse, error)
+	ListVolumes(context.Context, *ListVolumesRequest) (*ListVolumesResponse, error)
+	RemoveVolume(context.Context, *RemoveVolumeRequest) (*emptypb.Empty, error)
 	CreateServiceContainer(context.Context, *CreateServiceContainerRequest) (*CreateContainerResponse, error)
 	InspectServiceContainer(context.Context, *InspectContainerRequest) (*ServiceContainer, error)
 	ListServiceContainers(context.Context, *ListServiceContainersRequest) (*ListServiceContainersResponse, error)
@@ -259,6 +298,15 @@ func (UnimplementedDockerServer) InspectImage(context.Context, *InspectImageRequ
 func (UnimplementedDockerServer) InspectRemoteImage(context.Context, *InspectRemoteImageRequest) (*InspectRemoteImageResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method InspectRemoteImage not implemented")
 }
+func (UnimplementedDockerServer) CreateVolume(context.Context, *CreateVolumeRequest) (*CreateVolumeResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method CreateVolume not implemented")
+}
+func (UnimplementedDockerServer) ListVolumes(context.Context, *ListVolumesRequest) (*ListVolumesResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method ListVolumes not implemented")
+}
+func (UnimplementedDockerServer) RemoveVolume(context.Context, *RemoveVolumeRequest) (*emptypb.Empty, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method RemoveVolume not implemented")
+}
 func (UnimplementedDockerServer) CreateServiceContainer(context.Context, *CreateServiceContainerRequest) (*CreateContainerResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method CreateServiceContainer not implemented")
 }
@@ -447,6 +495,60 @@ func _Docker_InspectRemoteImage_Handler(srv interface{}, ctx context.Context, de
 	return interceptor(ctx, in, info, handler)
 }
 
+func _Docker_CreateVolume_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(CreateVolumeRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(DockerServer).CreateVolume(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: Docker_CreateVolume_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(DockerServer).CreateVolume(ctx, req.(*CreateVolumeRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _Docker_ListVolumes_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(ListVolumesRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(DockerServer).ListVolumes(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: Docker_ListVolumes_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(DockerServer).ListVolumes(ctx, req.(*ListVolumesRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
+func _Docker_RemoveVolume_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+	in := new(RemoveVolumeRequest)
+	if err := dec(in); err != nil {
+		return nil, err
+	}
+	if interceptor == nil {
+		return srv.(DockerServer).RemoveVolume(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: Docker_RemoveVolume_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(DockerServer).RemoveVolume(ctx, req.(*RemoveVolumeRequest))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 func _Docker_CreateServiceContainer_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
 	in := new(CreateServiceContainerRequest)
 	if err := dec(in); err != nil {
@@ -558,6 +660,18 @@ var Docker_ServiceDesc = grpc.ServiceDesc{
 			MethodName: "InspectRemoteImage",
 			Handler:    _Docker_InspectRemoteImage_Handler,
 		},
+		{
+			MethodName: "CreateVolume",
+			Handler:    _Docker_CreateVolume_Handler,
+		},
+		{
+			MethodName: "ListVolumes",
+			Handler:    _Docker_ListVolumes_Handler,
+		},
+		{
+			MethodName: "RemoveVolume",
+			Handler:    _Docker_RemoveVolume_Handler,
+		},
 		{
 			MethodName: "CreateServiceContainer",
 			Handler:    _Docker_CreateServiceContainer_Handler,

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

@@ -21,6 +21,63 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
+type CheckPrerequisitesResponse struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	// Overall status of the checks.
+	Satisfied bool `protobuf:"varint,1,opt,name=satisfied,proto3" json:"satisfied,omitempty"`
+	// Error message if not satisfied (empty if all checks pass).
+	Error string `protobuf:"bytes,2,opt,name=error,proto3" json:"error,omitempty"`
+}
+
+func (x *CheckPrerequisitesResponse) Reset() {
+	*x = CheckPrerequisitesResponse{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_internal_machine_api_pb_machine_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *CheckPrerequisitesResponse) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*CheckPrerequisitesResponse) ProtoMessage() {}
+
+func (x *CheckPrerequisitesResponse) ProtoReflect() protoreflect.Message {
+	mi := &file_internal_machine_api_pb_machine_proto_msgTypes[0]
+	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 CheckPrerequisitesResponse.ProtoReflect.Descriptor instead.
+func (*CheckPrerequisitesResponse) Descriptor() ([]byte, []int) {
+	return file_internal_machine_api_pb_machine_proto_rawDescGZIP(), []int{0}
+}
+
+func (x *CheckPrerequisitesResponse) GetSatisfied() bool {
+	if x != nil {
+		return x.Satisfied
+	}
+	return false
+}
+
+func (x *CheckPrerequisitesResponse) GetError() string {
+	if x != nil {
+		return x.Error
+	}
+	return ""
+}
+
 type MachineInfo struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -35,7 +92,7 @@ type MachineInfo struct {
 func (x *MachineInfo) Reset() {
 	*x = MachineInfo{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_internal_machine_api_pb_machine_proto_msgTypes[0]
+		mi := &file_internal_machine_api_pb_machine_proto_msgTypes[1]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -48,7 +105,7 @@ func (x *MachineInfo) String() string {
 func (*MachineInfo) ProtoMessage() {}
 
 func (x *MachineInfo) ProtoReflect() protoreflect.Message {
-	mi := &file_internal_machine_api_pb_machine_proto_msgTypes[0]
+	mi := &file_internal_machine_api_pb_machine_proto_msgTypes[1]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -61,7 +118,7 @@ func (x *MachineInfo) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use MachineInfo.ProtoReflect.Descriptor instead.
 func (*MachineInfo) Descriptor() ([]byte, []int) {
-	return file_internal_machine_api_pb_machine_proto_rawDescGZIP(), []int{0}
+	return file_internal_machine_api_pb_machine_proto_rawDescGZIP(), []int{1}
 }
 
 func (x *MachineInfo) GetId() string {
@@ -106,7 +163,7 @@ type NetworkConfig struct {
 func (x *NetworkConfig) Reset() {
 	*x = NetworkConfig{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_internal_machine_api_pb_machine_proto_msgTypes[1]
+		mi := &file_internal_machine_api_pb_machine_proto_msgTypes[2]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -119,7 +176,7 @@ func (x *NetworkConfig) String() string {
 func (*NetworkConfig) ProtoMessage() {}
 
 func (x *NetworkConfig) ProtoReflect() protoreflect.Message {
-	mi := &file_internal_machine_api_pb_machine_proto_msgTypes[1]
+	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 {
@@ -132,7 +189,7 @@ func (x *NetworkConfig) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use NetworkConfig.ProtoReflect.Descriptor instead.
 func (*NetworkConfig) Descriptor() ([]byte, []int) {
-	return file_internal_machine_api_pb_machine_proto_rawDescGZIP(), []int{1}
+	return file_internal_machine_api_pb_machine_proto_rawDescGZIP(), []int{2}
 }
 
 func (x *NetworkConfig) GetSubnet() *IPPrefix {
@@ -180,7 +237,7 @@ type InitClusterRequest struct {
 func (x *InitClusterRequest) Reset() {
 	*x = InitClusterRequest{}
 	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)
 	}
@@ -193,7 +250,7 @@ func (x *InitClusterRequest) String() string {
 func (*InitClusterRequest) ProtoMessage() {}
 
 func (x *InitClusterRequest) 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 {
@@ -206,7 +263,7 @@ func (x *InitClusterRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use InitClusterRequest.ProtoReflect.Descriptor instead.
 func (*InitClusterRequest) 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 *InitClusterRequest) GetMachineName() string {
@@ -271,7 +328,7 @@ type InitClusterResponse struct {
 func (x *InitClusterResponse) Reset() {
 	*x = InitClusterResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_internal_machine_api_pb_machine_proto_msgTypes[3]
+		mi := &file_internal_machine_api_pb_machine_proto_msgTypes[4]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -284,7 +341,7 @@ func (x *InitClusterResponse) String() string {
 func (*InitClusterResponse) ProtoMessage() {}
 
 func (x *InitClusterResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_internal_machine_api_pb_machine_proto_msgTypes[3]
+	mi := &file_internal_machine_api_pb_machine_proto_msgTypes[4]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -297,7 +354,7 @@ func (x *InitClusterResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use InitClusterResponse.ProtoReflect.Descriptor instead.
 func (*InitClusterResponse) Descriptor() ([]byte, []int) {
-	return file_internal_machine_api_pb_machine_proto_rawDescGZIP(), []int{3}
+	return file_internal_machine_api_pb_machine_proto_rawDescGZIP(), []int{4}
 }
 
 func (x *InitClusterResponse) GetMachine() *MachineInfo {
@@ -319,7 +376,7 @@ type JoinClusterRequest struct {
 func (x *JoinClusterRequest) Reset() {
 	*x = JoinClusterRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_internal_machine_api_pb_machine_proto_msgTypes[4]
+		mi := &file_internal_machine_api_pb_machine_proto_msgTypes[5]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -332,7 +389,7 @@ func (x *JoinClusterRequest) String() string {
 func (*JoinClusterRequest) ProtoMessage() {}
 
 func (x *JoinClusterRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_internal_machine_api_pb_machine_proto_msgTypes[4]
+	mi := &file_internal_machine_api_pb_machine_proto_msgTypes[5]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -345,7 +402,7 @@ func (x *JoinClusterRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use JoinClusterRequest.ProtoReflect.Descriptor instead.
 func (*JoinClusterRequest) Descriptor() ([]byte, []int) {
-	return file_internal_machine_api_pb_machine_proto_rawDescGZIP(), []int{4}
+	return file_internal_machine_api_pb_machine_proto_rawDescGZIP(), []int{5}
 }
 
 func (x *JoinClusterRequest) GetMachine() *MachineInfo {
@@ -373,7 +430,7 @@ type TokenResponse struct {
 func (x *TokenResponse) Reset() {
 	*x = TokenResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_internal_machine_api_pb_machine_proto_msgTypes[5]
+		mi := &file_internal_machine_api_pb_machine_proto_msgTypes[6]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -386,7 +443,7 @@ func (x *TokenResponse) String() string {
 func (*TokenResponse) ProtoMessage() {}
 
 func (x *TokenResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_internal_machine_api_pb_machine_proto_msgTypes[5]
+	mi := &file_internal_machine_api_pb_machine_proto_msgTypes[6]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -399,7 +456,7 @@ 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{5}
+	return file_internal_machine_api_pb_machine_proto_rawDescGZIP(), []int{6}
 }
 
 func (x *TokenResponse) GetToken() string {
@@ -423,7 +480,7 @@ type Service struct {
 func (x *Service) Reset() {
 	*x = Service{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_internal_machine_api_pb_machine_proto_msgTypes[6]
+		mi := &file_internal_machine_api_pb_machine_proto_msgTypes[7]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -436,7 +493,7 @@ func (x *Service) String() string {
 func (*Service) ProtoMessage() {}
 
 func (x *Service) ProtoReflect() protoreflect.Message {
-	mi := &file_internal_machine_api_pb_machine_proto_msgTypes[6]
+	mi := &file_internal_machine_api_pb_machine_proto_msgTypes[7]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -449,7 +506,7 @@ func (x *Service) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use Service.ProtoReflect.Descriptor instead.
 func (*Service) Descriptor() ([]byte, []int) {
-	return file_internal_machine_api_pb_machine_proto_rawDescGZIP(), []int{6}
+	return file_internal_machine_api_pb_machine_proto_rawDescGZIP(), []int{7}
 }
 
 func (x *Service) GetId() string {
@@ -491,7 +548,7 @@ type InspectServiceRequest struct {
 func (x *InspectServiceRequest) Reset() {
 	*x = InspectServiceRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_internal_machine_api_pb_machine_proto_msgTypes[7]
+		mi := &file_internal_machine_api_pb_machine_proto_msgTypes[8]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -504,7 +561,7 @@ func (x *InspectServiceRequest) String() string {
 func (*InspectServiceRequest) ProtoMessage() {}
 
 func (x *InspectServiceRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_internal_machine_api_pb_machine_proto_msgTypes[7]
+	mi := &file_internal_machine_api_pb_machine_proto_msgTypes[8]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -517,7 +574,7 @@ func (x *InspectServiceRequest) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use InspectServiceRequest.ProtoReflect.Descriptor instead.
 func (*InspectServiceRequest) Descriptor() ([]byte, []int) {
-	return file_internal_machine_api_pb_machine_proto_rawDescGZIP(), []int{7}
+	return file_internal_machine_api_pb_machine_proto_rawDescGZIP(), []int{8}
 }
 
 func (x *InspectServiceRequest) GetId() string {
@@ -538,7 +595,7 @@ type InspectServiceResponse struct {
 func (x *InspectServiceResponse) Reset() {
 	*x = InspectServiceResponse{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_internal_machine_api_pb_machine_proto_msgTypes[8]
+		mi := &file_internal_machine_api_pb_machine_proto_msgTypes[9]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -551,7 +608,7 @@ func (x *InspectServiceResponse) String() string {
 func (*InspectServiceResponse) ProtoMessage() {}
 
 func (x *InspectServiceResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_internal_machine_api_pb_machine_proto_msgTypes[8]
+	mi := &file_internal_machine_api_pb_machine_proto_msgTypes[9]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -564,7 +621,7 @@ func (x *InspectServiceResponse) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use InspectServiceResponse.ProtoReflect.Descriptor instead.
 func (*InspectServiceResponse) Descriptor() ([]byte, []int) {
-	return file_internal_machine_api_pb_machine_proto_rawDescGZIP(), []int{8}
+	return file_internal_machine_api_pb_machine_proto_rawDescGZIP(), []int{9}
 }
 
 func (x *InspectServiceResponse) GetService() *Service {
@@ -587,7 +644,7 @@ type Service_Container struct {
 func (x *Service_Container) Reset() {
 	*x = Service_Container{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_internal_machine_api_pb_machine_proto_msgTypes[9]
+		mi := &file_internal_machine_api_pb_machine_proto_msgTypes[10]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@@ -600,7 +657,7 @@ func (x *Service_Container) String() string {
 func (*Service_Container) ProtoMessage() {}
 
 func (x *Service_Container) ProtoReflect() protoreflect.Message {
-	mi := &file_internal_machine_api_pb_machine_proto_msgTypes[9]
+	mi := &file_internal_machine_api_pb_machine_proto_msgTypes[10]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@@ -613,7 +670,7 @@ func (x *Service_Container) ProtoReflect() protoreflect.Message {
 
 // Deprecated: Use Service_Container.ProtoReflect.Descriptor instead.
 func (*Service_Container) Descriptor() ([]byte, []int) {
-	return file_internal_machine_api_pb_machine_proto_rawDescGZIP(), []int{6, 0}
+	return file_internal_machine_api_pb_machine_proto_rawDescGZIP(), []int{7, 0}
 }
 
 func (x *Service_Container) GetMachineId() string {
@@ -640,96 +697,106 @@ var file_internal_machine_api_pb_machine_proto_rawDesc = []byte{
 	0x70, 0x74, 0x79, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x1a, 0x24, 0x69, 0x6e, 0x74, 0x65, 0x72,
 	0x6e, 0x61, 0x6c, 0x2f, 0x6d, 0x61, 0x63, 0x68, 0x69, 0x6e, 0x65, 0x2f, 0x61, 0x70, 0x69, 0x2f,
 	0x70, 0x62, 0x2f, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22,
-	0x85, 0x01, 0x0a, 0x0b, 0x4d, 0x61, 0x63, 0x68, 0x69, 0x6e, 0x65, 0x49, 0x6e, 0x66, 0x6f, 0x12,
-	0x0e, 0x0a, 0x02, 0x69, 0x64, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x02, 0x69, 0x64, 0x12,
-	0x12, 0x0a, 0x04, 0x6e, 0x61, 0x6d, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x6e,
-	0x61, 0x6d, 0x65, 0x12, 0x2c, 0x0a, 0x07, 0x6e, 0x65, 0x74, 0x77, 0x6f, 0x72, 0x6b, 0x18, 0x03,
-	0x20, 0x01, 0x28, 0x0b, 0x32, 0x12, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x4e, 0x65, 0x74, 0x77, 0x6f,
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-	0x70, 0x18, 0x02, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x07, 0x2e, 0x61, 0x70, 0x69, 0x2e, 0x49, 0x50,
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-	0x0a, 0x09, 0x65, 0x6e, 0x64, 0x70, 0x6f, 0x69, 0x6e, 0x74, 0x73, 0x18, 0x03, 0x20, 0x03, 0x28,
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+	0x62, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -744,48 +811,51 @@ 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, 10)
+var file_internal_machine_api_pb_machine_proto_msgTypes = make([]protoimpl.MessageInfo, 11)
 var file_internal_machine_api_pb_machine_proto_goTypes = []any{
-	(*MachineInfo)(nil),            // 0: api.MachineInfo
-	(*NetworkConfig)(nil),          // 1: api.NetworkConfig
-	(*InitClusterRequest)(nil),     // 2: api.InitClusterRequest
-	(*InitClusterResponse)(nil),    // 3: api.InitClusterResponse
-	(*JoinClusterRequest)(nil),     // 4: api.JoinClusterRequest
-	(*TokenResponse)(nil),          // 5: api.TokenResponse
-	(*Service)(nil),                // 6: api.Service
-	(*InspectServiceRequest)(nil),  // 7: api.InspectServiceRequest
-	(*InspectServiceResponse)(nil), // 8: api.InspectServiceResponse
-	(*Service_Container)(nil),      // 9: api.Service.Container
-	(*IP)(nil),                     // 10: api.IP
-	(*IPPrefix)(nil),               // 11: api.IPPrefix
-	(*IPPort)(nil),                 // 12: api.IPPort
-	(*emptypb.Empty)(nil),          // 13: google.protobuf.Empty
+	(*CheckPrerequisitesResponse)(nil), // 0: api.CheckPrerequisitesResponse
+	(*MachineInfo)(nil),                // 1: api.MachineInfo
+	(*NetworkConfig)(nil),              // 2: api.NetworkConfig
+	(*InitClusterRequest)(nil),         // 3: api.InitClusterRequest
+	(*InitClusterResponse)(nil),        // 4: api.InitClusterResponse
+	(*JoinClusterRequest)(nil),         // 5: api.JoinClusterRequest
+	(*TokenResponse)(nil),              // 6: api.TokenResponse
+	(*Service)(nil),                    // 7: api.Service
+	(*InspectServiceRequest)(nil),      // 8: api.InspectServiceRequest
+	(*InspectServiceResponse)(nil),     // 9: api.InspectServiceResponse
+	(*Service_Container)(nil),          // 10: api.Service.Container
+	(*IP)(nil),                         // 11: api.IP
+	(*IPPrefix)(nil),                   // 12: api.IPPrefix
+	(*IPPort)(nil),                     // 13: api.IPPort
+	(*emptypb.Empty)(nil),              // 14: google.protobuf.Empty
 }
 var file_internal_machine_api_pb_machine_proto_depIdxs = []int32{
-	1,  // 0: api.MachineInfo.network:type_name -> api.NetworkConfig
-	10, // 1: api.MachineInfo.public_ip:type_name -> api.IP
-	11, // 2: api.NetworkConfig.subnet:type_name -> api.IPPrefix
-	10, // 3: api.NetworkConfig.management_ip:type_name -> api.IP
-	12, // 4: api.NetworkConfig.endpoints:type_name -> api.IPPort
-	11, // 5: api.InitClusterRequest.network:type_name -> api.IPPrefix
-	10, // 6: api.InitClusterRequest.public_ip:type_name -> api.IP
-	0,  // 7: api.InitClusterResponse.machine:type_name -> api.MachineInfo
-	0,  // 8: api.JoinClusterRequest.machine:type_name -> api.MachineInfo
-	0,  // 9: api.JoinClusterRequest.other_machines:type_name -> api.MachineInfo
-	9,  // 10: api.Service.containers:type_name -> api.Service.Container
-	6,  // 11: api.InspectServiceResponse.service:type_name -> api.Service
-	2,  // 12: api.Machine.InitCluster:input_type -> api.InitClusterRequest
-	4,  // 13: api.Machine.JoinCluster:input_type -> api.JoinClusterRequest
-	13, // 14: api.Machine.Token:input_type -> google.protobuf.Empty
-	13, // 15: api.Machine.Inspect:input_type -> google.protobuf.Empty
-	7,  // 16: api.Machine.InspectService:input_type -> api.InspectServiceRequest
-	3,  // 17: api.Machine.InitCluster:output_type -> api.InitClusterResponse
-	13, // 18: api.Machine.JoinCluster:output_type -> google.protobuf.Empty
-	5,  // 19: api.Machine.Token:output_type -> api.TokenResponse
-	0,  // 20: api.Machine.Inspect:output_type -> api.MachineInfo
-	8,  // 21: api.Machine.InspectService:output_type -> api.InspectServiceResponse
-	17, // [17:22] is the sub-list for method output_type
-	12, // [12:17] is the sub-list for method input_type
+	2,  // 0: api.MachineInfo.network:type_name -> api.NetworkConfig
+	11, // 1: api.MachineInfo.public_ip:type_name -> api.IP
+	12, // 2: api.NetworkConfig.subnet:type_name -> api.IPPrefix
+	11, // 3: api.NetworkConfig.management_ip:type_name -> api.IP
+	13, // 4: api.NetworkConfig.endpoints:type_name -> api.IPPort
+	12, // 5: api.InitClusterRequest.network:type_name -> api.IPPrefix
+	11, // 6: api.InitClusterRequest.public_ip:type_name -> api.IP
+	1,  // 7: api.InitClusterResponse.machine:type_name -> api.MachineInfo
+	1,  // 8: api.JoinClusterRequest.machine:type_name -> api.MachineInfo
+	1,  // 9: api.JoinClusterRequest.other_machines:type_name -> api.MachineInfo
+	10, // 10: api.Service.containers:type_name -> api.Service.Container
+	7,  // 11: api.InspectServiceResponse.service:type_name -> api.Service
+	14, // 12: api.Machine.CheckPrerequisites:input_type -> google.protobuf.Empty
+	3,  // 13: api.Machine.InitCluster:input_type -> api.InitClusterRequest
+	5,  // 14: api.Machine.JoinCluster:input_type -> api.JoinClusterRequest
+	14, // 15: api.Machine.Token:input_type -> google.protobuf.Empty
+	14, // 16: api.Machine.Inspect:input_type -> google.protobuf.Empty
+	8,  // 17: api.Machine.InspectService:input_type -> api.InspectServiceRequest
+	0,  // 18: api.Machine.CheckPrerequisites:output_type -> api.CheckPrerequisitesResponse
+	4,  // 19: api.Machine.InitCluster:output_type -> api.InitClusterResponse
+	14, // 20: api.Machine.JoinCluster:output_type -> google.protobuf.Empty
+	6,  // 21: api.Machine.Token:output_type -> api.TokenResponse
+	1,  // 22: api.Machine.Inspect:output_type -> api.MachineInfo
+	9,  // 23: api.Machine.InspectService:output_type -> api.InspectServiceResponse
+	18, // [18:24] is the sub-list for method output_type
+	12, // [12:18] is the sub-list for method input_type
 	12, // [12:12] is the sub-list for extension type_name
 	12, // [12:12] is the sub-list for extension extendee
 	0,  // [0:12] is the sub-list for field type_name
@@ -799,7 +869,7 @@ func file_internal_machine_api_pb_machine_proto_init() {
 	file_internal_machine_api_pb_common_proto_init()
 	if !protoimpl.UnsafeEnabled {
 		file_internal_machine_api_pb_machine_proto_msgTypes[0].Exporter = func(v any, i int) any {
-			switch v := v.(*MachineInfo); i {
+			switch v := v.(*CheckPrerequisitesResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -811,7 +881,7 @@ func file_internal_machine_api_pb_machine_proto_init() {
 			}
 		}
 		file_internal_machine_api_pb_machine_proto_msgTypes[1].Exporter = func(v any, i int) any {
-			switch v := v.(*NetworkConfig); i {
+			switch v := v.(*MachineInfo); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -823,7 +893,7 @@ 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.(*InitClusterRequest); i {
+			switch v := v.(*NetworkConfig); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -835,7 +905,7 @@ func file_internal_machine_api_pb_machine_proto_init() {
 			}
 		}
 		file_internal_machine_api_pb_machine_proto_msgTypes[3].Exporter = func(v any, i int) any {
-			switch v := v.(*InitClusterResponse); i {
+			switch v := v.(*InitClusterRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -847,7 +917,7 @@ func file_internal_machine_api_pb_machine_proto_init() {
 			}
 		}
 		file_internal_machine_api_pb_machine_proto_msgTypes[4].Exporter = func(v any, i int) any {
-			switch v := v.(*JoinClusterRequest); i {
+			switch v := v.(*InitClusterResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -859,7 +929,7 @@ func file_internal_machine_api_pb_machine_proto_init() {
 			}
 		}
 		file_internal_machine_api_pb_machine_proto_msgTypes[5].Exporter = func(v any, i int) any {
-			switch v := v.(*TokenResponse); i {
+			switch v := v.(*JoinClusterRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -871,7 +941,7 @@ func file_internal_machine_api_pb_machine_proto_init() {
 			}
 		}
 		file_internal_machine_api_pb_machine_proto_msgTypes[6].Exporter = func(v any, i int) any {
-			switch v := v.(*Service); i {
+			switch v := v.(*TokenResponse); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -883,7 +953,7 @@ func file_internal_machine_api_pb_machine_proto_init() {
 			}
 		}
 		file_internal_machine_api_pb_machine_proto_msgTypes[7].Exporter = func(v any, i int) any {
-			switch v := v.(*InspectServiceRequest); i {
+			switch v := v.(*Service); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -895,7 +965,7 @@ func file_internal_machine_api_pb_machine_proto_init() {
 			}
 		}
 		file_internal_machine_api_pb_machine_proto_msgTypes[8].Exporter = func(v any, i int) any {
-			switch v := v.(*InspectServiceResponse); i {
+			switch v := v.(*InspectServiceRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@@ -907,6 +977,18 @@ func file_internal_machine_api_pb_machine_proto_init() {
 			}
 		}
 		file_internal_machine_api_pb_machine_proto_msgTypes[9].Exporter = func(v any, i int) any {
+			switch v := v.(*InspectServiceResponse); 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[10].Exporter = func(v any, i int) any {
 			switch v := v.(*Service_Container); i {
 			case 0:
 				return &v.state
@@ -919,7 +1001,7 @@ func file_internal_machine_api_pb_machine_proto_init() {
 			}
 		}
 	}
-	file_internal_machine_api_pb_machine_proto_msgTypes[2].OneofWrappers = []any{
+	file_internal_machine_api_pb_machine_proto_msgTypes[3].OneofWrappers = []any{
 		(*InitClusterRequest_PublicIp)(nil),
 		(*InitClusterRequest_PublicIpAuto)(nil),
 	}
@@ -929,7 +1011,7 @@ 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:   10,
+			NumMessages:   11,
 			NumExtensions: 0,
 			NumServices:   1,
 		},

internal/machine/api/pb/machine.proto

@@ -8,6 +8,8 @@ import "google/protobuf/empty.proto";
 import "internal/machine/api/pb/common.proto";
 
 service Machine {
+  // CheckPrerequisites verifies if the machine meets all necessary system requirements to participate in the cluster.
+  rpc CheckPrerequisites(google.protobuf.Empty) returns (CheckPrerequisitesResponse);
   rpc InitCluster(InitClusterRequest) returns (InitClusterResponse);
   rpc JoinCluster(JoinClusterRequest) returns (google.protobuf.Empty);
   rpc Token(google.protobuf.Empty) returns (TokenResponse);
@@ -29,6 +31,13 @@ message NetworkConfig {
   bytes public_key = 4;
 }
 
+message CheckPrerequisitesResponse {
+  // Overall status of the checks.
+  bool satisfied = 1;
+  // Error message if not satisfied (empty if all checks pass).
+  string error = 2;
+}
+
 message InitClusterRequest {
   string machineName = 1;
   IPPrefix network = 2;

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

@@ -20,17 +20,19 @@ import (
 const _ = grpc.SupportPackageIsVersion9
 
 const (
-	Machine_InitCluster_FullMethodName    = "/api.Machine/InitCluster"
-	Machine_JoinCluster_FullMethodName    = "/api.Machine/JoinCluster"
-	Machine_Token_FullMethodName          = "/api.Machine/Token"
-	Machine_Inspect_FullMethodName        = "/api.Machine/Inspect"
-	Machine_InspectService_FullMethodName = "/api.Machine/InspectService"
+	Machine_CheckPrerequisites_FullMethodName = "/api.Machine/CheckPrerequisites"
+	Machine_InitCluster_FullMethodName        = "/api.Machine/InitCluster"
+	Machine_JoinCluster_FullMethodName        = "/api.Machine/JoinCluster"
+	Machine_Token_FullMethodName              = "/api.Machine/Token"
+	Machine_Inspect_FullMethodName            = "/api.Machine/Inspect"
+	Machine_InspectService_FullMethodName     = "/api.Machine/InspectService"
 )
 
 // MachineClient is the client API for Machine service.
 //
 // 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 {
+	CheckPrerequisites(ctx context.Context, in *emptypb.Empty, opts ...grpc.CallOption) (*CheckPrerequisitesResponse, error)
 	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)
@@ -46,6 +48,16 @@ func NewMachineClient(cc grpc.ClientConnInterface) MachineClient {
 	return &machineClient{cc}
 }
 
+func (c *machineClient) CheckPrerequisites(ctx context.Context, in *emptypb.Empty, opts ...grpc.CallOption) (*CheckPrerequisitesResponse, error) {
+	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
+	out := new(CheckPrerequisitesResponse)
+	err := c.cc.Invoke(ctx, Machine_CheckPrerequisites_FullMethodName, in, out, cOpts...)
+	if err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 func (c *machineClient) InitCluster(ctx context.Context, in *InitClusterRequest, opts ...grpc.CallOption) (*InitClusterResponse, error) {
 	cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
 	out := new(InitClusterResponse)
@@ -100,6 +112,7 @@ func (c *machineClient) InspectService(ctx context.Context, in *InspectServiceRe
 // All implementations must embed UnimplementedMachineServer
 // for forward compatibility.
 type MachineServer interface {
+	CheckPrerequisites(context.Context, *emptypb.Empty) (*CheckPrerequisitesResponse, error)
 	InitCluster(context.Context, *InitClusterRequest) (*InitClusterResponse, error)
 	JoinCluster(context.Context, *JoinClusterRequest) (*emptypb.Empty, error)
 	Token(context.Context, *emptypb.Empty) (*TokenResponse, error)
@@ -115,6 +128,9 @@ type MachineServer interface {
 // pointer dereference when methods are called.
 type UnimplementedMachineServer struct{}
 
+func (UnimplementedMachineServer) CheckPrerequisites(context.Context, *emptypb.Empty) (*CheckPrerequisitesResponse, error) {
+	return nil, status.Errorf(codes.Unimplemented, "method CheckPrerequisites not implemented")
+}
 func (UnimplementedMachineServer) InitCluster(context.Context, *InitClusterRequest) (*InitClusterResponse, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method InitCluster not implemented")
 }
@@ -151,6 +167,24 @@ func RegisterMachineServer(s grpc.ServiceRegistrar, srv MachineServer) {
 	s.RegisterService(&Machine_ServiceDesc, srv)
 }
 
+func _Machine_CheckPrerequisites_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.(MachineServer).CheckPrerequisites(ctx, in)
+	}
+	info := &grpc.UnaryServerInfo{
+		Server:     srv,
+		FullMethod: Machine_CheckPrerequisites_FullMethodName,
+	}
+	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
+		return srv.(MachineServer).CheckPrerequisites(ctx, req.(*emptypb.Empty))
+	}
+	return interceptor(ctx, in, info, handler)
+}
+
 func _Machine_InitCluster_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
 	in := new(InitClusterRequest)
 	if err := dec(in); err != nil {
@@ -248,6 +282,10 @@ var Machine_ServiceDesc = grpc.ServiceDesc{
 	ServiceName: "api.Machine",
 	HandlerType: (*MachineServer)(nil),
 	Methods: []grpc.MethodDesc{
+		{
+			MethodName: "CheckPrerequisites",
+			Handler:    _Machine_CheckPrerequisites_Handler,
+		},
 		{
 			MethodName: "InitCluster",
 			Handler:    _Machine_InitCluster_Handler,

internal/machine/caddyfile/config.go

@@ -15,7 +15,6 @@ import (
 	"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/internal/machine/docker"
 	"github.com/psviderski/uncloud/pkg/api"
 )
 
@@ -24,34 +23,38 @@ func GenerateConfig(containers []api.ServiceContainer, verifyResponse string) (*
 	httpHostUpstreams := make(map[string][]string)
 	httpsHostUpstreams := make(map[string][]string)
 	for _, ctr := range containers {
-		logger := slog.With("container", ctr.ID)
-		network, ok := ctr.NetworkSettings.Networks[docker.NetworkName]
-		if !ok {
-			// Container is not connected to the uncloud Docker network (could be host network).
-			continue
-		}
-		if network.IPAddress == "" {
-			logger.Error("Container has no IPv4 address.")
+		if !ctr.Healthy() {
 			continue
 		}
 
+		ip := ctr.UncloudNetworkIP()
+		if !ip.IsValid() {
+			// Container is not connected to the uncloud Docker network (could be host network).
+			continue
+		}
+		log := slog.With("container", ctr.ID)
+
 		ports, err := ctr.ServicePorts()
 		if err != nil {
-			logger.Error("Failed to parse service ports for container.", "err", err)
+			log.Error("Failed to parse service ports for container.", "err", err)
 			continue
 		}
 
 		for _, port := range ports {
+			if port.Mode != api.PortModeIngress {
+				continue
+			}
+
 			switch port.Protocol {
 			case api.ProtocolHTTP:
-				upstream := net.JoinHostPort(network.IPAddress, strconv.Itoa(int(port.ContainerPort)))
+				upstream := net.JoinHostPort(ip.String(), strconv.Itoa(int(port.ContainerPort)))
 				httpHostUpstreams[port.Hostname] = append(httpHostUpstreams[port.Hostname], upstream)
 			case api.ProtocolHTTPS:
-				upstream := net.JoinHostPort(network.IPAddress, strconv.Itoa(int(port.ContainerPort)))
+				upstream := net.JoinHostPort(ip.String(), strconv.Itoa(int(port.ContainerPort)))
 				httpsHostUpstreams[port.Hostname] = append(httpsHostUpstreams[port.Hostname], upstream)
 			default:
 				// TODO: implement L4 ingress routing for TCP and UDP.
-				logger.Error("Unsupported protocol for ingress port.", "port", port)
+				log.Error("Unsupported protocol for ingress port.", "port", port)
 				continue
 			}
 		}

internal/machine/caddyfile/config_test.go

@@ -14,6 +14,25 @@ import (
 )
 
 func TestGenerateConfig(t *testing.T) {
+	configWithoutServices := `{
+		"servers": {
+			"http": {
+				"listen": [":80"],
+				"routes": [{
+					"match": [{"path": ["/.uncloud-verify"]}],
+					"handle": [{
+						"body": "verification-response-body",
+						"handler": "static_response",
+						"status_code": 200
+					}]
+				}]
+			},
+			"https": {
+				"listen": [":443"]
+			}
+		}
+	}`
+
 	tests := []struct {
 		name       string
 		containers []api.ServiceContainer
@@ -23,25 +42,8 @@ func TestGenerateConfig(t *testing.T) {
 		{
 			name:       "empty containers",
 			containers: []api.ServiceContainer{},
-			want: `{
-                "servers": {
-                    "http": {
-                        "listen": [":80"],
-                        "routes": [{
-                            "match": [{"path": ["/.uncloud-verify"]}],
-                            "handle": [{
-								"body": "verification-response-body",
-								"handler": "static_response",
-								"status_code": 200
-							}]
-                        }]
-                    },
-                    "https": {
-                        "listen": [":443"]
-                    }
-				}
-			}`,
-			wantErr: false,
+			want:       configWithoutServices,
+			wantErr:    false,
 		},
 
 		{
@@ -231,24 +233,7 @@ func TestGenerateConfig(t *testing.T) {
 			containers: []api.ServiceContainer{
 				newContainerWithoutNetwork("ignored.example.com:8080/http"),
 			},
-			want: `{
-                "servers": {
-                    "http": {
-                        "listen": [":80"],
-                        "routes": [{
-                            "match": [{"path": ["/.uncloud-verify"]}],
-                            "handle": [{
-                                "body": "verification-response-body",
-                                "handler": "static_response",
-                                "status_code": 200
-                            }]
-                        }]
-                    },
-                    "https": {
-                        "listen": [":443"]
-                    }
-                }
-            }`,
+			want:    configWithoutServices,
 			wantErr: false,
 		},
 		{
@@ -256,45 +241,63 @@ func TestGenerateConfig(t *testing.T) {
 			containers: []api.ServiceContainer{
 				newContainer("10.210.0.2", "invalid-port"),
 			},
-			want: `{
-                "servers": {
-                    "http": {
-                        "listen": [":80"],
-                        "routes": [{
-                            "match": [{"path": ["/.uncloud-verify"]}],
-                            "handle": [{
-                                "body": "verification-response-body",
-                                "handler": "static_response",
-                                "status_code": 200
-                            }]
-                        }]
-                    },
-                    "https": {
-                        "listen": [":443"]
-                    }
-                }
-            }`,
+			want:    configWithoutServices,
 			wantErr: false,
 		},
 		{
-			name: "containers with unsupported protocols ignored",
+			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,
+		},
+		{
+			name: "restarting container ignored",
+			containers: []api.ServiceContainer{
+				newRestartingContainer("10.210.0.2", "app.example.com:8080/http"),
+			},
+			want:    configWithoutServices,
+			wantErr: false,
+		},
+		{
+			name: "stopped container ignored",
+			containers: []api.ServiceContainer{
+				newStoppedContainer("10.210.0.2", "app.example.com:8080/http"),
+			},
+			want:    configWithoutServices,
+			wantErr: false,
+		},
+		{
+			name: "mix of running, restarting, and stopped containers",
+			containers: []api.ServiceContainer{
+				newContainer("10.210.0.2", "app.example.com:8080/http"),
+				newRestartingContainer("10.210.0.3", "app.example.com:8080/http"),
+				newStoppedContainer("10.210.0.4", "app.example.com:8080/http"),
+			},
 			want: `{
                 "servers": {
                     "http": {
                         "listen": [":80"],
-                        "routes": [{
-                            "match": [{"path": ["/.uncloud-verify"]}],
-                            "handle": [{
-                                "body": "verification-response-body",
-                                "handler": "static_response",
-                                "status_code": 200
-                            }]
-                        }]
+                        "routes": [
+                            {
+                                "match": [{"host": ["app.example.com"]}],
+                                "handle": [{
+                                    "handler": "reverse_proxy",
+                                    "upstreams": [{"dial": "10.210.0.2:8080"}]
+                                }]
+                            },
+                            {
+                                "match": [{"path": ["/.uncloud-verify"]}],
+                                "handle": [{
+                                    "body": "verification-response-body",
+                                    "handler": "static_response",
+                                    "status_code": 200
+                                }]
+                            }
+                        ]
                     },
                     "https": {
                         "listen": [":443"]
@@ -326,7 +329,11 @@ func TestGenerateConfig(t *testing.T) {
 func newContainer(ip string, ports ...string) api.ServiceContainer {
 	portsLabel := strings.Join(ports, ",")
 	return api.ServiceContainer{Container: api.Container{ContainerJSON: types.ContainerJSON{
-		ContainerJSONBase: &types.ContainerJSONBase{},
+		ContainerJSONBase: &types.ContainerJSONBase{
+			State: &types.ContainerState{
+				Running: true,
+			},
+		},
 		NetworkSettings: &types.NetworkSettings{
 			Networks: map[string]*network.EndpointSettings{
 				docker.NetworkName: {
@@ -345,7 +352,11 @@ func newContainer(ip string, ports ...string) api.ServiceContainer {
 func newContainerWithoutNetwork(ports ...string) api.ServiceContainer {
 	portsLabel := strings.Join(ports, ",")
 	return api.ServiceContainer{Container: api.Container{ContainerJSON: types.ContainerJSON{
-		ContainerJSONBase: &types.ContainerJSONBase{},
+		ContainerJSONBase: &types.ContainerJSONBase{
+			State: &types.ContainerState{
+				Running: true,
+			},
+		},
 		NetworkSettings: &types.NetworkSettings{
 			Networks: map[string]*network.EndpointSettings{
 				"other-network": {
@@ -360,3 +371,15 @@ func newContainerWithoutNetwork(ports ...string) api.ServiceContainer {
 		},
 	}}}
 }
+
+func newRestartingContainer(ip string, ports ...string) api.ServiceContainer {
+	ctr := newContainer(ip, ports...)
+	ctr.Container.State.Restarting = true
+	return ctr
+}
+
+func newStoppedContainer(ip string, ports ...string) api.ServiceContainer {
+	ctr := newContainer(ip, ports...)
+	ctr.Container.State.Running = false
+	return ctr
+}

internal/machine/db.go

@@ -36,16 +36,11 @@ func NewDB(path string) (*sqlx.DB, error) {
 	schema := `
 	CREATE TABLE IF NOT EXISTS containers (
 	    id TEXT NOT NULL PRIMARY KEY,
-	    service_id TEXT NOT NULL,
-	    service_name TEXT AS (json_extract(service_spec, '$.Name')),
 	    service_spec TEXT NOT NULL CHECK (json_valid(service_spec)),
 	    -- 'subsecond' modifier is used to store timestamps with millisecond precision.
 	    created_at TIMESTAMP NOT NULL DEFAULT (datetime('subsecond')),
 	    updated_at TIMESTAMP NOT NULL DEFAULT (datetime('subsecond'))
 	);
-
-	CREATE INDEX IF NOT EXISTS idx_containers_service_id ON containers (service_id);
-	CREATE INDEX IF NOT EXISTS idx_containers_service_name ON containers (service_name);
     `
 
 	if _, err = db.Exec(schema); err != nil {

internal/machine/dns/resolver.go

@@ -0,0 +1,126 @@
+package dns
+
+import (
+	"context"
+	"fmt"
+	"log/slog"
+	"net/netip"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/psviderski/uncloud/internal/machine/store"
+	"github.com/psviderski/uncloud/pkg/api"
+)
+
+// ClusterResolver implements Resolver by tracking containers in the cluster and resolving service names
+// to their IP addresses.
+type ClusterResolver struct {
+	store *store.Store
+	// serviceIPs maps service names to container IPs.
+	serviceIPs map[string][]netip.Addr
+	// mu protects the serviceIPs map.
+	mu sync.RWMutex
+	// lastUpdate tracks when records were last updated.
+	lastUpdate time.Time
+	log        *slog.Logger
+}
+
+// NewClusterResolver creates a new cluster resolver using the cluster store.
+func NewClusterResolver(store *store.Store) *ClusterResolver {
+	return &ClusterResolver{
+		store:      store,
+		serviceIPs: make(map[string][]netip.Addr),
+		log:        slog.With("component", "dns-resolver"),
+	}
+}
+
+// Run starts watching for container changes and updates DNS records accordingly.
+func (r *ClusterResolver) Run(ctx context.Context) error {
+	containers, changes, err := r.store.SubscribeContainers(ctx)
+	if err != nil {
+		return fmt.Errorf("subscribe to container changes: %w", err)
+	}
+	r.log.Info("Subscribed to container changes in the cluster to keep DNS records updated.")
+
+	// TODO: implement machine membership check using Corrossion Admin client to filter available containers.
+	r.updateServiceIPs(containers)
+
+	for {
+		select {
+		case _, ok := <-changes:
+			if !ok {
+				return fmt.Errorf("containers subscription failed")
+			}
+			r.log.Debug("Cluster containers changed, updating DNS records.")
+
+			containers, err = r.store.ListContainers(ctx, store.ListOptions{})
+			if err != nil {
+				r.log.Error("Failed to list containers.", "err", err)
+				continue
+			}
+
+			// TODO: implement machine membership check using Corrossion Admin client to filter available containers.
+			r.updateServiceIPs(containers)
+		case <-ctx.Done():
+			return nil
+		}
+	}
+}
+
+// updateServiceIPs processes container records and updates the serviceIPs map.
+func (r *ClusterResolver) updateServiceIPs(containers []store.ContainerRecord) {
+	newServiceIPs := make(map[string][]netip.Addr, len(r.serviceIPs))
+
+	containersCount := 0
+	for _, record := range containers {
+		if !record.Container.Healthy() {
+			continue
+		}
+
+		ip := record.Container.UncloudNetworkIP()
+		if !ip.IsValid() {
+			// Container is not connected to the uncloud Docker network (could be host network).
+			continue
+		}
+
+		ctr := api.ServiceContainer{Container: record.Container}
+		if ctr.ServiceID() == "" || ctr.ServiceName() == "" {
+			// Container is not part of a service, skip it.
+			continue
+		}
+
+		// TODO: remove normalisation after implementing service name validation:
+		//.https://github.com/psviderski/uncloud/issues/53
+		serviceName := strings.ToLower(ctr.ServiceName())
+
+		newServiceIPs[serviceName] = append(newServiceIPs[serviceName], ip)
+		// Also add the service ID as a valid lookup.
+		newServiceIPs[ctr.ServiceID()] = append(newServiceIPs[ctr.ServiceID()], ip)
+		containersCount++
+	}
+
+	// Update the serviceIPs map atomically.
+	r.mu.Lock()
+	r.serviceIPs = newServiceIPs
+	r.mu.Unlock()
+
+	r.log.Debug("DNS records updated.", "services", len(newServiceIPs)/2, "containers", containersCount)
+}
+
+// Resolve returns IP addresses of the service containers.
+func (r *ClusterResolver) Resolve(serviceName string) []netip.Addr {
+	r.mu.RLock()
+	defer r.mu.RUnlock()
+
+	ips, ok := r.serviceIPs[serviceName]
+	if !ok || len(ips) == 0 {
+		return nil
+	}
+
+	// Return a copy of the IPs slice to prevent modification of the original.
+	ipsCopy := make([]netip.Addr, len(ips))
+	copy(ipsCopy, ips)
+
+	return ipsCopy
+}

internal/machine/dns/server.go

@@ -0,0 +1,347 @@
+package dns
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"log/slog"
+	"math/rand/v2"
+	"net"
+	"net/netip"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/miekg/dns"
+)
+
+const (
+	// InternalDomain is the cluster internal domain for service discovery. All DNS queries ending with this suffix
+	// will be resolved using the internal DNS server.
+	InternalDomain = "internal."
+	// Port is the standard DNS port.
+	Port = 53
+	// maxConcurrentForwards is the maximum number of concurrent forwarded queries to upstream DNS servers.
+	// 1024 is the default used by the Docker internal DNS server.
+	maxConcurrentForwards = 1024
+	// forwardingTimeout is the timeout for forwarding a DNS query to an upstream server.
+	forwardingTimeout = 3 * time.Second
+)
+
+// Resolver is an interface for resolving service names to IP addresses.
+type Resolver interface {
+	// Resolve returns a list of IP addresses of the service containers.
+	// An empty list is returned if no service is found.
+	Resolve(serviceName string) []netip.Addr
+}
+
+// Server is an embedded internal DNS server for service discovery and forwarding external queries
+// to upstream DNS servers.
+type Server struct {
+	listenAddr      netip.Addr
+	resolver        Resolver
+	upstreamServers []netip.AddrPort
+
+	udpServer        *dns.Server
+	tcpServer        *dns.Server
+	inProgressReqs   sync.WaitGroup
+	forwardSemaphore chan struct{}
+	log              *slog.Logger
+}
+
+// NewServer creates a new DNS server with the given configuration.
+// If upstreams is nil, nameservers from /etc/resolv.conf will be used. An empty upstreams list means to only resolve
+// internal DNS queries and not forward any external queries.
+func NewServer(listenAddr netip.Addr, resolver Resolver, upstreams []netip.AddrPort) (*Server, error) {
+	if !listenAddr.IsValid() {
+		return nil, fmt.Errorf("invalid listen address: %s", listenAddr)
+	}
+	if resolver == nil {
+		return nil, fmt.Errorf("resolver must be provided")
+	}
+
+	// Load upstreams from /etc/resolv.conf and set fallback servers only if upstreams is not provided.
+	if upstreams == nil {
+		if nameservers, err := parseNameserversFromResolvConf(); err != nil {
+			slog.Warn("Failed to parse nameservers from /etc/resolv.conf.", "err", err)
+		} else {
+			for _, ns := range nameservers {
+				if ns.Compare(listenAddr) == 0 {
+					// Skip this internal DNS server address if it has been configured in /etc/resolv.conf
+					// to not create a forwarding loop.
+					continue
+				}
+				upstreams = append(upstreams, netip.AddrPortFrom(ns, Port))
+			}
+		}
+
+		// Fallback to common public DNS servers if no nameservers were found in /etc/resolv.conf.
+		if upstreams == nil {
+			upstreams = []netip.AddrPort{
+				netip.AddrPortFrom(netip.MustParseAddr("1.1.1.1"), Port), // Cloudflare DNS
+				netip.AddrPortFrom(netip.MustParseAddr("8.8.8.8"), Port), // Google DNS
+			}
+		}
+	}
+
+	return &Server{
+		listenAddr:       listenAddr,
+		resolver:         resolver,
+		upstreamServers:  upstreams,
+		forwardSemaphore: make(chan struct{}, maxConcurrentForwards),
+		log:              slog.With("component", "dns-server"),
+	}, nil
+}
+
+// ListenAddr returns the address the DNS server is listening on.
+func (s *Server) ListenAddr() netip.Addr {
+	return s.listenAddr
+}
+
+// Run starts the DNS server listening on both UDP and TCP ports. The server on TCP is not critical so it won't return
+// an error if it fails to start. The server will run until the context is canceled or an error occurs.
+func (s *Server) Run(ctx context.Context) error {
+	addr := net.JoinHostPort(s.listenAddr.String(), strconv.Itoa(Port))
+	s.udpServer = &dns.Server{
+		Addr:    addr,
+		Net:     "udp",
+		Handler: dns.HandlerFunc(s.handleRequest),
+	}
+	s.tcpServer = &dns.Server{
+		Addr:    addr,
+		Net:     "tcp",
+		Handler: dns.HandlerFunc(s.handleRequest),
+	}
+
+	errCh := make(chan error, 1) // Buffer size 1 is for UDP server error only.
+
+	go func() {
+		s.log.Info("Starting DNS server on UDP port.", "addr", addr, "upstreams", s.upstreamServers)
+		if err := s.udpServer.ListenAndServe(); err != nil {
+			errCh <- fmt.Errorf("listen and serve on %s/udp: %w", addr, err)
+		}
+	}()
+
+	go func() {
+		s.log.Info("Starting DNS server on TCP port.", "addr", addr, "upstreams", s.upstreamServers)
+		if err := s.tcpServer.ListenAndServe(); err != nil {
+			// TCP server is not critical, so log the error and continue.
+			slog.Warn("Failed to listen and serve DNS server on TCP port. "+
+				"TCP server is not critical and will be ignored.", "addr", addr, "err", err)
+		}
+	}()
+
+	select {
+	case err := <-errCh:
+		// Stop the servers if the UDP one fails.
+		s.stop()
+		return err
+	case <-ctx.Done():
+		s.log.Info("Stopping DNS server.")
+		return s.stop()
+	}
+}
+
+// stop gracefully shuts down the DNS server.
+func (s *Server) stop() error {
+	var udpErr, tcpErr error
+
+	if s.udpServer != nil {
+		udpErr = s.udpServer.Shutdown()
+	}
+	if s.tcpServer != nil {
+		tcpErr = s.tcpServer.Shutdown()
+	}
+
+	// Wait for all in-progress requests to finish.
+	s.inProgressReqs.Wait()
+
+	if udpErr != nil {
+		return fmt.Errorf("shutdown DNS server (UDP): %w", udpErr)
+	}
+
+	if tcpErr != nil {
+		return fmt.Errorf("shutdown DNS server (TCP): %w", tcpErr)
+	}
+
+	return nil
+}
+
+// handleRequest processes a DNS query and returns an appropriate response.
+func (s *Server) handleRequest(w dns.ResponseWriter, req *dns.Msg) {
+	s.inProgressReqs.Add(1)
+	defer s.inProgressReqs.Done()
+
+	if len(req.Question) == 0 {
+		resp := new(dns.Msg).SetRcode(req, dns.RcodeFormatError)
+		s.reply(w, req, resp)
+		return
+	}
+
+	// While the original DNS RFCs allow multiple questions, in practice it never works. So handle only the first one.
+	q := req.Question[0]
+	log := s.log.With("name", q.Name, "type", dns.TypeToString[q.Qtype])
+	log.Debug("Received DNS query.")
+
+	if !dns.IsSubDomain(InternalDomain, dns.CanonicalName(q.Name)) {
+		log.Debug("Forwarding non-internal DNS query to upstream DNS servers.")
+
+		// Use the same transport for the forwarded request as the original request.
+		resp, err := s.forwardRequest(req, w.LocalAddr().Network())
+		if err != nil {
+			log.Error("Failed to forward DNS query.", "err", err)
+			resp = new(dns.Msg).SetRcode(req, dns.RcodeServerFailure)
+		}
+
+		s.reply(w, req, resp)
+		return
+	}
+
+	// Handle the query for the internal domain.
+	resp := new(dns.Msg).SetReply(req)
+	resp.Authoritative = true
+	resp.RecursionAvailable = true
+
+	switch q.Qtype {
+	case dns.TypeA:
+		records := s.handleAQuery(q.Name)
+		if len(records) > 0 {
+			log.Debug("Found A records for internal DNS query.", "count", len(records))
+			resp.Answer = append(resp.Answer, records...)
+		} else {
+			log.Debug("No records found for internal DNS query.")
+			resp.SetRcode(req, dns.RcodeNameError)
+		}
+		// TODO: Handle other query types (SRV, TXT, etc.) as needed.
+	}
+
+	// Truncate the response if it exceeds the maximum size for the transport protocol.
+	maxSize := dns.MinMsgSize
+	if w.LocalAddr().Network() == "tcp" {
+		maxSize = dns.MaxMsgSize
+	} else {
+		// Retrieve the UDP buffer size from the EDNS0 record if present.
+		if opt := req.IsEdns0(); opt != nil {
+			if udpSize := int(opt.UDPSize()); udpSize > maxSize {
+				maxSize = udpSize
+			}
+		}
+	}
+	resp.Truncate(maxSize)
+
+	s.reply(w, req, resp)
+}
+
+func (s *Server) reply(w dns.ResponseWriter, req *dns.Msg, resp *dns.Msg) error {
+	if err := w.WriteMsg(resp); err != nil {
+		s.log.Error("Failed to write DNS response.", "err", err, "msg", resp)
+		// It may fail due to a malformed response message, e.g. exceeding the maximum size. In that case,
+		// attempt to send a server failure response instead so the client doesn't have to wait for a timeout.
+		if resp.Rcode != dns.RcodeServerFailure {
+			resp = new(dns.Msg).SetRcode(req, dns.RcodeServerFailure)
+			if err2 := w.WriteMsg(resp); err2 != nil {
+				s.log.Error("Failed to write DNS error response.", "err", err2, "msg", resp)
+			}
+		}
+		return err
+	}
+	return nil
+}
+
+// forwardRequest forwards a DNS query to system DNS servers
+func (s *Server) forwardRequest(req *dns.Msg, proto string) (*dns.Msg, error) {
+	if len(s.upstreamServers) == 0 {
+		return nil, errors.New("no upstream DNS servers configured")
+	}
+
+	// Apply concurrency control for forwarded queries.
+	select {
+	case s.forwardSemaphore <- struct{}{}:
+		defer func() {
+			<-s.forwardSemaphore
+		}()
+	default:
+		return nil, fmt.Errorf("too many concurrent forwarded queries (max: %d)", maxConcurrentForwards)
+	}
+
+	// Create DNS client with timeout and same transport as original request
+	client := &dns.Client{
+		Net:     proto,
+		Timeout: forwardingTimeout,
+	}
+
+	var lastErr error
+	for _, server := range s.upstreamServers {
+		resp, _, err := client.Exchange(req, server.String())
+		if err == nil {
+			return resp, nil
+		}
+		lastErr = err
+		s.log.Debug("Failed to forward DNS query to upstream server.", "server", server, "err", err)
+	}
+
+	return nil, lastErr
+}
+
+// handleAQuery processes an A query for the internal domain and returns A records for the requested name.
+// The internal domain suffix is already stripped from the name. An empty list is returned if no records are found.
+func (s *Server) handleAQuery(name string) []dns.RR {
+	serviceName := trimInternalDomain(name)
+	ips := s.resolver.Resolve(serviceName)
+	if len(ips) == 0 {
+		s.log.Debug("Failed to resolve service name.", "service", serviceName)
+		return nil
+	}
+	s.log.Debug("Resolved service name.", "service", serviceName, "ips", ips)
+
+	if len(ips) > 1 {
+		// TODO: sort by proximity to the requesting container/machine. For now, just shuffle the IPs.
+		rand.Shuffle(len(ips), func(i, j int) {
+			ips[i], ips[j] = ips[j], ips[i]
+		})
+	}
+
+	// Create A records for each IP.
+	records := make([]dns.RR, 0, len(ips))
+	for _, ip := range ips {
+		records = append(records, &dns.A{
+			Hdr: dns.RR_Header{
+				Name:   name,
+				Rrtype: dns.TypeA,
+				Class:  dns.ClassINET,
+				// TODO: should we increate the TTL to some reasonably small value like 5-30 seconds to allow
+				//  at least some caching?
+				Ttl: 0,
+			},
+			A: net.ParseIP(ip.String()),
+		})
+	}
+	return records
+}
+
+// parseNameserversFromResolvConf parses the nameservers from /etc/resolv.conf.
+func parseNameserversFromResolvConf() ([]netip.Addr, error) {
+	config, err := dns.ClientConfigFromFile("/etc/resolv.conf")
+	if err != nil {
+		return nil, err
+	}
+
+	var servers []netip.Addr
+	for _, server := range config.Servers {
+		if addr, err := netip.ParseAddr(server); err == nil {
+			servers = append(servers, addr)
+		}
+	}
+
+	return servers, nil
+}
+
+func trimInternalDomain(name string) string {
+	name = dns.CanonicalName(name)
+	if !dns.IsSubDomain(InternalDomain, name) {
+		return name
+	}
+
+	return strings.TrimSuffix(name, "."+InternalDomain)
+}

internal/machine/docker/client.go

@@ -11,6 +11,7 @@ import (
 	"github.com/docker/docker/api/types"
 	"github.com/docker/docker/api/types/container"
 	"github.com/docker/docker/api/types/network"
+	"github.com/docker/docker/api/types/volume"
 	"github.com/docker/docker/errdefs"
 	"github.com/docker/docker/pkg/jsonmessage"
 	regtypes "github.com/google/go-containerregistry/pkg/v1/types"
@@ -341,6 +342,75 @@ func parseRemoteImageMessage(msg *pb.RemoteImage) (api.MachineRemoteImage, error
 	return mri, nil
 }
 
+// CreateVolume creates a new volume with the given options.
+func (c *Client) CreateVolume(ctx context.Context, opts volume.CreateOptions) (volume.Volume, error) {
+	var vol volume.Volume
+
+	optsBytes, err := json.Marshal(opts)
+	if err != nil {
+		return vol, fmt.Errorf("marshal options: %w", err)
+	}
+
+	resp, err := c.grpcClient.CreateVolume(ctx, &pb.CreateVolumeRequest{Options: optsBytes})
+	if err != nil {
+		return vol, err
+	}
+
+	if err = json.Unmarshal(resp.Volume, &vol); err != nil {
+		return vol, fmt.Errorf("unmarshal volume: %w", err)
+	}
+
+	return vol, nil
+}
+
+// MachineVolumes represents a volume list response from a machine.
+type MachineVolumes struct {
+	Metadata *pb.Metadata
+	Response volume.ListResponse
+}
+
+// ListVolumes returns a list of all volumes matching the filter.
+func (c *Client) ListVolumes(ctx context.Context, opts volume.ListOptions) ([]MachineVolumes, error) {
+	optsBytes, err := json.Marshal(opts)
+	if err != nil {
+		return nil, fmt.Errorf("marshal options: %w", err)
+	}
+
+	resp, err := c.grpcClient.ListVolumes(ctx, &pb.ListVolumesRequest{Options: optsBytes})
+	if err != nil {
+		return nil, err
+	}
+
+	machineVolumes := make([]MachineVolumes, len(resp.Messages))
+	for i, msg := range resp.Messages {
+		machineVolumes[i].Metadata = msg.Metadata
+		if msg.Metadata != nil && msg.Metadata.Error != "" {
+			continue
+		}
+
+		if err = json.Unmarshal(msg.Response, &machineVolumes[i].Response); err != nil {
+			return nil, fmt.Errorf("unmarshal response: %w", err)
+		}
+	}
+
+	return machineVolumes, nil
+}
+
+// RemoveVolume removes a volume with the given ID.
+func (c *Client) RemoveVolume(ctx context.Context, id string, force bool) error {
+	_, err := c.grpcClient.RemoveVolume(ctx, &pb.RemoveVolumeRequest{
+		Id:    id,
+		Force: force,
+	})
+	if err != nil {
+		if status.Convert(err).Code() == codes.NotFound {
+			return errdefs.NotFound(err)
+		}
+	}
+
+	return err
+}
+
 // CreateServiceContainer creates a new container for the service with the given specifications.
 func (c *Client) CreateServiceContainer(
 	ctx context.Context, serviceID string, spec api.ServiceSpec, containerName string,

internal/machine/docker/manager.go

@@ -4,19 +4,19 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"log/slog"
+	"time"
+
 	dockercontainer "github.com/docker/docker/api/types/container"
 	"github.com/docker/docker/api/types/events"
 	"github.com/docker/docker/api/types/filters"
 	"github.com/docker/docker/client"
 	"github.com/psviderski/uncloud/internal/machine/store"
 	"github.com/psviderski/uncloud/pkg/api"
-	"log/slog"
-	"time"
 )
 
 const (
 	NetworkName = "uncloud"
-	UserChain   = "DOCKER-USER"
 	// EventsDebounceInterval defines how long to wait before processing the next Docker event. Multiple events
 	// occurring within this window will be processed together as a single event to prevent system overload.
 	EventsDebounceInterval = 100 * time.Millisecond

internal/machine/docker/manager_darwin.go

@@ -8,7 +8,7 @@ import (
 	"net/netip"
 )
 
-// EnsureUncloudNetwork is a stub for darwin.
-func (m *Manager) EnsureUncloudNetwork(ctx context.Context, subnet netip.Prefix) error {
-	return fmt.Errorf("not supported on darwin")
+// EnsureUncloudNetwork is a stub for Darwin.
+func (m *Manager) EnsureUncloudNetwork(ctx context.Context, subnet netip.Prefix, dnsServer netip.Addr) error {
+	return fmt.Errorf("not supported on Darwin")
 }

internal/machine/docker/manager_linux.go

@@ -3,24 +3,28 @@ package docker
 import (
 	"context"
 	"fmt"
+	"log/slog"
+	"net/netip"
+	"strconv"
+
 	dnetwork "github.com/docker/docker/api/types/network"
 	"github.com/docker/docker/client"
 	"github.com/docker/docker/libnetwork/iptables"
-	"log/slog"
-	"net/netip"
+	"github.com/psviderski/uncloud/internal/machine/dns"
+	"github.com/psviderski/uncloud/internal/machine/firewall"
 	"github.com/psviderski/uncloud/internal/machine/network"
 )
 
 // EnsureUncloudNetwork creates the Docker bridge network NetworkName with the provided machine subnet
 // if it doesn't exist. If the network exists but has a different subnet, it removes and recreates the network.
 // It also configures iptables to allow container access from the WireGuard network.
-func (m *Manager) EnsureUncloudNetwork(ctx context.Context, subnet netip.Prefix) error {
+func (m *Manager) EnsureUncloudNetwork(ctx context.Context, subnet netip.Prefix, dnsServer netip.Addr) error {
 	// Ensure the Docker network 'uncloud' is created with the correct subnet.
 	needsCreation := false
 	nw, err := m.client.NetworkInspect(ctx, NetworkName, dnetwork.InspectOptions{})
 	if err != nil {
 		if !client.IsErrNotFound(err) {
-			return fmt.Errorf("inspect Docker network %q: %w", NetworkName, err)
+			return fmt.Errorf("inspect Docker network '%s': %w", NetworkName, err)
 		}
 		needsCreation = true
 	} else if nw.IPAM.Config[0].Subnet != subnet.String() {
@@ -31,7 +35,7 @@ func (m *Manager) EnsureUncloudNetwork(ctx context.Context, subnet netip.Prefix)
 		)
 		if err = m.client.NetworkRemove(ctx, NetworkName); err != nil {
 			// It can still fail if the network is in use by a container. Leave it to the user to resolve the issue.
-			return fmt.Errorf("remove Docker network %q: %w", NetworkName, err)
+			return fmt.Errorf("remove Docker network '%s': %w", NetworkName, err)
 		}
 		needsCreation = true
 	}
@@ -50,12 +54,12 @@ func (m *Manager) EnsureUncloudNetwork(ctx context.Context, subnet netip.Prefix)
 				},
 			},
 		); err != nil {
-			return fmt.Errorf("create Docker network %q: %w", NetworkName, err)
+			return fmt.Errorf("create Docker network '%s': %w", NetworkName, err)
 		}
 		slog.Info("Docker network created.", "name", NetworkName, "subnet", subnet.String())
 
 		if nw, err = m.client.NetworkInspect(ctx, NetworkName, dnetwork.InspectOptions{}); err != nil {
-			return fmt.Errorf("inspect Docker network %q: %w", NetworkName, err)
+			return fmt.Errorf("inspect Docker network '%s': %w", NetworkName, err)
 		}
 	}
 
@@ -67,10 +71,36 @@ func (m *Manager) EnsureUncloudNetwork(ctx context.Context, subnet netip.Prefix)
 	// Bridge name doesn't seem to be documented but this is the source code where it is generated:
 	// https://github.com/moby/moby/blob/v27.2.1/libnetwork/drivers/bridge/bridge_linux.go#L664
 	bridgeName := "br-" + nw.ID[:12]
+
+	if err = configureIptables(bridgeName, dnsServer); err != nil {
+		return fmt.Errorf("configure iptables for Docker network '%s': %w", NetworkName, err)
+	}
+
+	return nil
+}
+
+// configureIptables configures iptables rules for the uncloud Docker network.
+func configureIptables(bridgeName string, dnsServer netip.Addr) error {
 	ipt := iptables.GetIptable(iptables.IPv4)
-	rule := []string{"--in-interface", network.WireGuardInterfaceName, "--out-interface", bridgeName, "-j", "ACCEPT"}
-	if err = ipt.ProgramRule(iptables.Filter, UserChain, iptables.Insert, rule); err != nil {
+	// Allow traffic from other machines and their containers through the WG mesh to the Uncloud containers
+	// on the machine.
+	wgRule := []string{"--in-interface", network.WireGuardInterfaceName, "--out-interface", bridgeName, "-j", "ACCEPT"}
+	if err := ipt.ProgramRule(iptables.Filter, firewall.DockerUserChain, iptables.Insert, wgRule); err != nil {
 		return fmt.Errorf("insert iptables rule: %w", err)
+	}
+
+	// Allow DNS queries from Uncloud containers to the embedded DNS server.
+	for _, proto := range []string{"udp", "tcp"} {
+		dnsRule := []string{
+			"--in-interface", bridgeName,
+			"--dst", dnsServer.String(),
+			"--protocol", proto,
+			"--dport", strconv.Itoa(dns.Port),
+			"-j", "ACCEPT",
+		}
+		if err := ipt.ProgramRule(iptables.Filter, firewall.UncloudInputChain, iptables.Insert, dnsRule); err != nil {
+			return fmt.Errorf("insert iptables rule: %w", err)
+		}
 	}
 
 	return nil

internal/machine/docker/server.go

@@ -8,7 +8,9 @@ import (
 	"fmt"
 	"io"
 	"log/slog"
+	"net/netip"
 	"regexp"
+	"slices"
 	"strconv"
 	"strings"
 
@@ -17,7 +19,9 @@ import (
 	"github.com/docker/docker/api/types/container"
 	"github.com/docker/docker/api/types/filters"
 	"github.com/docker/docker/api/types/image"
+	"github.com/docker/docker/api/types/mount"
 	"github.com/docker/docker/api/types/network"
+	"github.com/docker/docker/api/types/volume"
 	"github.com/docker/docker/client"
 	"github.com/docker/go-connections/nat"
 	"github.com/google/go-containerregistry/pkg/authn"
@@ -27,6 +31,7 @@ import (
 	"github.com/opencontainers/go-digest"
 	ocispec "github.com/opencontainers/image-spec/specs-go/v1"
 	"github.com/psviderski/uncloud/internal/machine/api/pb"
+	"github.com/psviderski/uncloud/internal/machine/dns"
 	"github.com/psviderski/uncloud/internal/secret"
 	"github.com/psviderski/uncloud/pkg/api"
 	"google.golang.org/grpc"
@@ -42,13 +47,17 @@ type Server struct {
 	pb.UnimplementedDockerServer
 	client *client.Client
 	db     *sqlx.DB
+	// internalDNSIP is a function that returns the IP address of the internal DNS server. It may return an empty
+	// address if the address is unknown (e.g. when the machine is not initialised yet).
+	internalDNSIP func() netip.Addr
 }
 
 // NewServer creates a new Docker gRPC server with the provided Docker client.
-func NewServer(cli *client.Client, db *sqlx.DB) *Server {
+func NewServer(cli *client.Client, db *sqlx.DB, internalDNSIP func() netip.Addr) *Server {
 	return &Server{
-		client: cli,
-		db:     db,
+		client:        cli,
+		db:            db,
+		internalDNSIP: internalDNSIP,
 	}
 }
 
@@ -329,6 +338,80 @@ func (s *Server) InspectRemoteImage(
 	}, nil
 }
 
+// CreateVolume creates a new volume with the given options.
+func (s *Server) CreateVolume(ctx context.Context, req *pb.CreateVolumeRequest) (*pb.CreateVolumeResponse, error) {
+	var opts volume.CreateOptions
+	if err := json.Unmarshal(req.Options, &opts); err != nil {
+		return nil, status.Errorf(codes.InvalidArgument, "unmarshal options: %v", err)
+	}
+
+	vol, err := s.client.VolumeCreate(ctx, opts)
+	if err != nil {
+		return nil, status.Error(codes.Internal, err.Error())
+	}
+
+	volBytes, err := json.Marshal(vol)
+	if err != nil {
+		return nil, status.Errorf(codes.Internal, "marshal volume: %v", err)
+	}
+
+	return &pb.CreateVolumeResponse{Volume: volBytes}, nil
+}
+
+// ListVolumes returns a list of all volumes matching the filter.
+func (s *Server) ListVolumes(ctx context.Context, req *pb.ListVolumesRequest) (*pb.ListVolumesResponse, error) {
+	var opts volume.ListOptions
+	if len(req.Options) > 0 {
+		if err := json.Unmarshal(req.Options, &opts); err != nil {
+			return nil, status.Errorf(codes.InvalidArgument, "unmarshal options: %v", err)
+		}
+
+		// Handle filters separately because they implement custom JSON unmarshalling.
+		var raw map[string]json.RawMessage
+		if err := json.Unmarshal(req.Options, &raw); err != nil {
+			return nil, status.Errorf(codes.InvalidArgument, "unmarshal options to raw map: %v", err)
+		}
+
+		if filtersBytes, ok := raw["Filters"]; ok {
+			args, err := filters.FromJSON(string(filtersBytes))
+			if err != nil {
+				return nil, status.Errorf(codes.InvalidArgument, "unmarshal filters: %v", err)
+			}
+			opts.Filters = args
+		}
+	}
+
+	resp, err := s.client.VolumeList(ctx, opts)
+	if err != nil {
+		return nil, status.Error(codes.Internal, err.Error())
+	}
+
+	respBytes, err := json.Marshal(resp)
+	if err != nil {
+		return nil, status.Errorf(codes.Internal, "marshal response: %v", err)
+	}
+
+	return &pb.ListVolumesResponse{
+		Messages: []*pb.MachineVolumes{
+			{
+				Response: respBytes,
+			},
+		},
+	}, nil
+}
+
+// RemoveVolume removes a volume with the given ID.
+func (s *Server) RemoveVolume(ctx context.Context, req *pb.RemoveVolumeRequest) (*emptypb.Empty, error) {
+	if err := s.client.VolumeRemove(ctx, req.Id, req.Force); err != nil {
+		if client.IsErrNotFound(err) {
+			return nil, status.Error(codes.NotFound, err.Error())
+		}
+		return nil, status.Error(codes.Internal, err.Error())
+	}
+
+	return &emptypb.Empty{}, nil
+}
+
 // CreateServiceContainer creates a new container for the service with the given specifications.
 func (s *Server) CreateServiceContainer(
 	ctx context.Context, req *pb.CreateServiceContainerRequest,
@@ -357,6 +440,7 @@ func (s *Server) CreateServiceContainer(
 
 	config := &container.Config{
 		Cmd:        spec.Container.Command,
+		Env:        spec.Container.Env.ToSlice(),
 		Entrypoint: spec.Container.Entrypoint,
 		Hostname:   containerName,
 		Image:      spec.Container.Image,
@@ -366,6 +450,7 @@ func (s *Server) CreateServiceContainer(
 			api.LabelServiceMode: spec.Mode,
 			api.LabelManaged:     "",
 		},
+		User: spec.Container.User,
 	}
 	if spec.Mode == "" {
 		config.Labels[api.LabelServiceMode] = api.ServiceModeReplicated
@@ -385,6 +470,14 @@ func (s *Server) CreateServiceContainer(
 		config.Labels[api.LabelServicePorts] = strings.Join(encodedPorts, ",")
 	}
 
+	mounts, err := ToDockerMounts(spec.Volumes, spec.Container.VolumeMounts)
+	if err != nil {
+		return nil, err
+	}
+	if err = s.verifyDockerVolumesExist(ctx, mounts); err != nil {
+		return nil, err
+	}
+
 	portBindings := make(nat.PortMap)
 	for _, p := range spec.Ports {
 		if p.Mode != api.PortModeHost {
@@ -403,13 +496,38 @@ func (s *Server) CreateServiceContainer(
 	hostConfig := &container.HostConfig{
 		Binds:        spec.Container.Volumes,
 		Init:         spec.Container.Init,
+		Mounts:       mounts,
 		PortBindings: portBindings,
+		Privileged:   spec.Container.Privileged,
+		Resources: container.Resources{
+			NanoCPUs:          spec.Container.Resources.CPU,
+			Memory:            spec.Container.Resources.Memory,
+			MemoryReservation: spec.Container.Resources.MemoryReservation,
+		},
 		// Always restart service containers if they exit or a machine restarts.
 		// For one-off containers and batch jobs we plan to use a different service type/mode.
 		RestartPolicy: container.RestartPolicy{
 			Name: container.RestartPolicyAlways,
 		},
 	}
+
+	// Configure the container to use the internal DNS server if it's available.
+	dnsIP := s.internalDNSIP()
+	if dnsIP.IsValid() {
+		hostConfig.DNS = []string{dnsIP.String()}
+		// Optimize DNS resolution for service discovery by appending the search domain to names without a dot.
+		// For example, the first attempt for "my-service" will be "my-service.internal".
+		hostConfig.DNSOptions = []string{"ndots:1"}
+		hostConfig.DNSSearch = []string{dns.InternalDomain}
+	}
+
+	if spec.Container.LogDriver != nil {
+		hostConfig.LogConfig = container.LogConfig{
+			Type:   spec.Container.LogDriver.Name,
+			Config: spec.Container.LogDriver.Options,
+		}
+	}
+
 	networkConfig := &network.NetworkingConfig{
 		EndpointsConfig: map[string]*network.EndpointSettings{
 			NetworkName: {},
@@ -440,9 +558,8 @@ func (s *Server) CreateServiceContainer(
 		return nil, status.Errorf(codes.Internal, "marshal service spec: %v", err)
 	}
 
-	if _, err = s.db.ExecContext(ctx,
-		`INSERT INTO containers (id, service_id, service_spec) VALUES ($1, $2, $3)`,
-		resp.ID, req.ServiceId, string(specBytes)); err != nil {
+	if _, err = s.db.ExecContext(ctx, `INSERT INTO containers (id, service_spec) VALUES ($1, $2)`,
+		resp.ID, string(specBytes)); err != nil {
 		removeContainer()
 		return nil, status.Errorf(codes.Internal, "store container in database: %v", err)
 	}
@@ -450,6 +567,101 @@ func (s *Server) CreateServiceContainer(
 	return &pb.CreateContainerResponse{Response: respBytes}, nil
 }
 
+func ToDockerMounts(volumes []api.VolumeSpec, mounts []api.VolumeMount) ([]mount.Mount, error) {
+	normalisedVolumes := make([]api.VolumeSpec, len(volumes))
+	for i, v := range volumes {
+		normalisedVolumes[i] = v.SetDefaults()
+	}
+
+	dockerMounts := make([]mount.Mount, 0, len(mounts))
+	for _, m := range mounts {
+		idx := slices.IndexFunc(normalisedVolumes, func(v api.VolumeSpec) bool {
+			return v.Name == m.VolumeName
+		})
+		if idx == -1 {
+			return nil, fmt.Errorf("volume mount references a volume that doesn't exist in the volumes spec: '%s'",
+				m.VolumeName)
+		}
+
+		vol := normalisedVolumes[idx]
+		if err := vol.Validate(); err != nil {
+			return nil, fmt.Errorf("invalid volume: %w", err)
+		}
+
+		dm := mount.Mount{
+			Type:     mount.Type(vol.Type),
+			Target:   m.ContainerPath,
+			ReadOnly: m.ReadOnly,
+		}
+
+		switch vol.Type {
+		case api.VolumeTypeBind:
+			dm.Source = vol.BindOptions.HostPath
+			dm.BindOptions = toDockerBindOptions(vol.BindOptions)
+		case api.VolumeTypeVolume:
+			dm.Source = vol.DockerVolumeName()
+			dm.VolumeOptions = &mount.VolumeOptions{
+				NoCopy:       vol.VolumeOptions.NoCopy,
+				Labels:       vol.VolumeOptions.Labels,
+				Subpath:      vol.VolumeOptions.SubPath,
+				DriverConfig: vol.VolumeOptions.Driver,
+			}
+		case api.VolumeTypeTmpfs:
+			dm.TmpfsOptions = vol.TmpfsOptions
+		default:
+			return nil, fmt.Errorf("unsupported volume type: '%s'", vol.Type)
+		}
+
+		dockerMounts = append(dockerMounts, dm)
+	}
+
+	return dockerMounts, nil
+}
+
+func toDockerBindOptions(opts *api.BindOptions) *mount.BindOptions {
+	if opts == nil {
+		return nil
+	}
+
+	dockerOpts := &mount.BindOptions{
+		Propagation:      opts.Propagation,
+		CreateMountpoint: opts.CreateHostPath,
+	}
+
+	switch opts.Recursive {
+	case "disabled":
+		dockerOpts.NonRecursive = true
+	case "writable":
+		dockerOpts.ReadOnlyNonRecursive = true
+	case "readonly":
+		dockerOpts.ReadOnlyForceRecursive = true
+	}
+
+	return dockerOpts
+}
+
+// verifyDockerVolumesExist checks if the Docker named volumes referenced in the mounts exist on the machine.
+func (s *Server) verifyDockerVolumesExist(ctx context.Context, mounts []mount.Mount) error {
+	for _, m := range mounts {
+		if m.Type != mount.TypeVolume {
+			continue
+		}
+
+		// TODO: non-local volume drivers should likely be handled differently (needs proper investigation).
+		if _, err := s.client.VolumeInspect(ctx, m.Source); err != nil {
+			if client.IsErrNotFound(err) {
+				return status.Errorf(codes.NotFound, "volume '%s' not found", m.Source)
+			}
+			return status.Errorf(codes.Internal, "inspect volume '%s': %v", m.Source, err.Error())
+		}
+		// TODO: check if the volume driver and options are the same as in the mount and fail if not.
+		//  Should we even ignore driver-specific options in the volume spec for externally managed volumes?
+		//  Instead, just inspect the existing volume and construct the mount from it.
+	}
+
+	return nil
+}
+
 // InspectServiceContainer returns the container information and service specification that was used to create the
 // container with the given ID.
 func (s *Server) InspectServiceContainer(

internal/machine/firewall/iptables_darwin.go

@@ -0,0 +1,8 @@
+package firewall
+
+import "fmt"
+
+// ConfigureIptablesChains is a stub for Darwin.
+func ConfigureIptablesChains() error {
+	return fmt.Errorf("not supported on Darwin")
+}

internal/machine/firewall/iptables_linux.go

@@ -0,0 +1,74 @@
+package firewall
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+
+	"github.com/docker/docker/libnetwork/iptables"
+	"github.com/psviderski/uncloud/internal/machine/network"
+)
+
+const (
+	DockerUserChain   = "DOCKER-USER"
+	UncloudInputChain = "UNCLOUD-INPUT"
+)
+
+// ConfigureIptablesChains sets up custom iptables chains and initial firewall rules for Uncloud networking.
+func ConfigureIptablesChains() error {
+	// Ensure iptables UNCLOUD-INPUT chain with a RETURN rule exists. All existing rules are flushed.
+	ipt := iptables.GetIptable(iptables.IPv4)
+	if _, err := ipt.NewChain(UncloudInputChain, iptables.Filter); err != nil {
+		return fmt.Errorf("create iptables chain '%s': %w", UncloudInputChain, err)
+	}
+	if err := ipt.RawCombinedOutput("-t", string(iptables.Filter), "-F", UncloudInputChain); err != nil {
+		return fmt.Errorf("flush iptables chain '%s': %w", UncloudInputChain, err)
+	}
+	if err := ipt.AddReturnRule(UncloudInputChain); err != nil {
+		return fmt.Errorf("add the RETURN rule for iptables chain '%s': %w", UncloudInputChain, err)
+	}
+
+	// Ensure the main iptables INPUT chain has a jump rule to the UNCLOUD-INPUT chain before any DROP/REJECT rules.
+	jumpRule := []string{"-m", "comment", "--comment", "Uncloud-managed", "-j", UncloudInputChain}
+	if !ipt.Exists(iptables.Filter, "INPUT", jumpRule...) {
+		// Look for the first DROP/REJECT rule in the INPUT chain.
+		out, err := ipt.Raw("-t", string(iptables.Filter), "-L", "INPUT", "--line-numbers")
+		if err != nil {
+			return fmt.Errorf("get iptables rules for chain '%s': %w", UncloudInputChain, err)
+		}
+
+		firstRejectRuleNum := 0
+		for _, line := range strings.Split(string(out), "\n") {
+			fields := strings.Fields(line)
+			if len(fields) < 2 {
+				continue
+			}
+			if fields[1] == "DROP" || fields[1] == "REJECT" {
+				if ruleNum, err := strconv.Atoi(fields[0]); err == nil {
+					firstRejectRuleNum = ruleNum
+					break
+				}
+			}
+		}
+
+		var addJumpRule []string
+		if firstRejectRuleNum > 0 {
+			addJumpRule = append([]string{"-t", string(iptables.Filter), "-I", "INPUT", strconv.Itoa(firstRejectRuleNum)},
+				jumpRule...)
+		} else {
+			addJumpRule = append([]string{"-t", string(iptables.Filter), "-A", "INPUT"}, jumpRule...)
+		}
+		if err = ipt.RawCombinedOutput(addJumpRule...); err != nil {
+			return fmt.Errorf("add iptables rule '%s': %w", strings.Join(addJumpRule, " "), err)
+		}
+	}
+
+	// Allow WireGuard traffic to the machine.
+	acceptWireGuardRule := []string{"-p", "udp", "--dport", strconv.Itoa(network.WireGuardPort), "-j", "ACCEPT"}
+	err := ipt.ProgramRule(iptables.Filter, UncloudInputChain, iptables.Insert, acceptWireGuardRule)
+	if err != nil {
+		return fmt.Errorf("insert iptables rule '%s': %w", strings.Join(acceptWireGuardRule, " "), err)
+	}
+
+	return nil
+}

internal/machine/machine.go

@@ -24,6 +24,7 @@ import (
 	"github.com/psviderski/uncloud/internal/machine/caddyfile"
 	"github.com/psviderski/uncloud/internal/machine/cluster"
 	"github.com/psviderski/uncloud/internal/machine/corroservice"
+	"github.com/psviderski/uncloud/internal/machine/dns"
 	machinedocker "github.com/psviderski/uncloud/internal/machine/docker"
 	"github.com/psviderski/uncloud/internal/machine/network"
 	"github.com/psviderski/uncloud/internal/machine/store"
@@ -62,6 +63,8 @@ type Config struct {
 	// CaddyConfigPath specifies where the machine generates the Caddy reverse proxy configuration file for routing
 	// external traffic to service containers across the internal network. Default is DataDir/caddy/caddy.json.
 	CaddyConfigPath string
+	// DNSUpstreams specifies the upstream DNS servers for the embedded internal DNS server.
+	DNSUpstreams []netip.AddrPort
 }
 
 // SetDefaults returns a new Config with default values set where not provided.
@@ -217,7 +220,6 @@ func NewMachine(config *Config) (*Machine, error) {
 	if err != nil {
 		return nil, fmt.Errorf("init machine database: %w", err)
 	}
-	dockerServer := machinedocker.NewServer(dockerCli, db)
 
 	// Init a local gRPC proxy server that proxies requests to the local or remote machine API servers.
 	proxyDirector := apiproxy.NewDirector(config.MachineSockPath, APIPort)
@@ -235,11 +237,16 @@ func NewMachine(config *Config) (*Machine, error) {
 		initialised:      make(chan struct{}, 1),
 		store:            corroStore,
 		cluster:          c,
-		docker:           dockerServer,
 		localProxyServer: localProxyServer,
 		proxyDirector:    proxyDirector,
 	}
-	m.localMachineServer = newGRPCServer(m, c, dockerServer)
+
+	// Machine IP will only be available after the machine is initialised as a cluster member so wrap it in a function.
+	internalDNSIP := func() netip.Addr {
+		return m.IP()
+	}
+	m.docker = machinedocker.NewServer(dockerCli, db, internalDNSIP)
+	m.localMachineServer = newGRPCServer(m, c, m.docker)
 
 	if m.Initialised() {
 		m.initialised <- struct{}{}
@@ -270,6 +277,15 @@ func (m *Machine) Initialised() bool {
 	return m.state.ID != ""
 }
 
+// IP returns the machine IPv4 address in the cluster network which is the first address in the machine subnet.
+func (m *Machine) IP() netip.Addr {
+	if !m.Initialised() {
+		return netip.Addr{}
+	}
+
+	return network.MachineIP(m.state.Network.Subnet)
+}
+
 func (m *Machine) Run(ctx context.Context) error {
 	// Docker dependency is essential for the machine to function. Block until it's ready.
 	if err := docker.WaitDaemonReady(ctx, m.config.DockerClient); err != nil {
@@ -373,6 +389,12 @@ func (m *Machine) Run(ctx context.Context) error {
 						return fmt.Errorf("create Caddyfile controller: %w", err)
 					}
 
+					dnsResolver := dns.NewClusterResolver(m.store)
+					dnsServer, err := dns.NewServer(m.IP(), dnsResolver, m.config.DNSUpstreams)
+					if err != nil {
+						return fmt.Errorf("create embedded DNS server: %w", err)
+					}
+
 					ctrl, err = newNetworkController(
 						m.state,
 						m.store,
@@ -380,6 +402,8 @@ func (m *Machine) Run(ctx context.Context) error {
 						m.config.CorrosionService,
 						m.config.DockerClient,
 						caddyfileCtrl,
+						dnsServer,
+						dnsResolver,
 					)
 					if err != nil {
 						return fmt.Errorf("initialise network controller: %w", err)
@@ -520,6 +544,38 @@ func (m *Machine) configureCorrosion() error {
 	return nil
 }
 
+// CheckPrerequisites verifies if the machine meets all necessary system requirements to participate in the cluster.
+func (m *Machine) CheckPrerequisites(ctx context.Context, _ *emptypb.Empty) (*pb.CheckPrerequisitesResponse, error) {
+	// Check DNS port (UDP) availability.
+	if err := checkDNSPortAvailable(); err != nil {
+		return &pb.CheckPrerequisitesResponse{
+			Satisfied: false,
+			Error:     err.Error(),
+		}, nil
+	}
+
+	return &pb.CheckPrerequisitesResponse{
+		Satisfied: true,
+	}, nil
+}
+
+// checkDNSPortAvailable verifies that DNS port 53/udp is available for Uncloud's embedded DNS service.
+func checkDNSPortAvailable() error {
+	addr := &net.UDPAddr{
+		IP:   net.IPv4(127, 0, 0, 210), // Use a unique loopback address to avoid conflicts.
+		Port: dns.Port,
+	}
+	conn, err := net.ListenUDP("udp", addr)
+	if err != nil {
+		return fmt.Errorf("DNS port %d/udp is already in use by another service: %w. Uncloud needs this port "+
+			"to run the embedded internal DNS service on WireGuard interface 'uncloud'. Please reconfigure "+
+			"any DNS servers (like dnsmasq, systemd-resolved, or named) that might be listening on all network "+
+			"interfaces (0.0.0.0) on the machine and try again", dns.Port, err)
+	}
+	conn.Close()
+	return nil
+}
+
 // InitCluster initialises a new cluster on the local machine with the provided network configuration.
 func (m *Machine) InitCluster(ctx context.Context, req *pb.InitClusterRequest) (*pb.InitClusterResponse, error) {
 	if m.Initialised() {

internal/machine/network.go

@@ -4,22 +4,25 @@ import (
 	"context"
 	"errors"
 	"fmt"
-	"github.com/cenkalti/backoff/v4"
-	"github.com/docker/docker/client"
-	"golang.org/x/sync/errgroup"
-	"google.golang.org/grpc"
 	"log/slog"
 	"net"
 	"net/netip"
 	"slices"
 	"strconv"
 	"time"
+
+	"github.com/cenkalti/backoff/v4"
+	"github.com/docker/docker/client"
 	"github.com/psviderski/uncloud/internal/machine/api/pb"
 	"github.com/psviderski/uncloud/internal/machine/caddyfile"
 	"github.com/psviderski/uncloud/internal/machine/corroservice"
+	"github.com/psviderski/uncloud/internal/machine/dns"
 	"github.com/psviderski/uncloud/internal/machine/docker"
+	"github.com/psviderski/uncloud/internal/machine/firewall"
 	"github.com/psviderski/uncloud/internal/machine/network"
 	"github.com/psviderski/uncloud/internal/machine/store"
+	"golang.org/x/sync/errgroup"
+	"google.golang.org/grpc"
 )
 
 const (
@@ -38,8 +41,9 @@ type networkController struct {
 	dockerCli     *client.Client
 	caddyfileCtrl *caddyfile.Controller
 
-	// TODO: DNS server/resolver listening on the machine IP, e.g. 10.210.0.1:53. It can't listen on 127.0.X.X
-	//  like resolved does because it needs to be reachable from both the host and the containers.
+	// dnsServer is the embedded internal DNS server for the cluster listening on the machine IP.
+	dnsServer   *dns.Server
+	dnsResolver *dns.ClusterResolver
 }
 
 func newNetworkController(
@@ -49,6 +53,8 @@ func newNetworkController(
 	corroService corroservice.Service,
 	dockerCli *client.Client,
 	caddyfileCtrl *caddyfile.Controller,
+	dnsServer *dns.Server,
+	dnsResolver *dns.ClusterResolver,
 ) (
 	*networkController, error,
 ) {
@@ -68,10 +74,16 @@ func newNetworkController(
 		corroService:    corroService,
 		dockerCli:       dockerCli,
 		caddyfileCtrl:   caddyfileCtrl,
+		dnsServer:       dnsServer,
+		dnsResolver:     dnsResolver,
 	}, nil
 }
 
 func (nc *networkController) Run(ctx context.Context) error {
+	if err := firewall.ConfigureIptablesChains(); err != nil {
+		return fmt.Errorf("configure iptables chains: %w", err)
+	}
+
 	if err := nc.wgnet.Configure(*nc.state.Network); err != nil {
 		return fmt.Errorf("configure WireGuard network: %w", err)
 	}
@@ -110,65 +122,73 @@ func (nc *networkController) Run(ctx context.Context) error {
 		},
 	)
 
+	errGroup.Go(func() error {
+		slog.Info("Starting embedded DNS resolver.")
+		if err := nc.dnsResolver.Run(ctx); err != nil {
+			return fmt.Errorf("embedded DNS resolver failed: %w", err)
+		}
+		return nil
+	})
+
+	errGroup.Go(func() error {
+		slog.Info("Starting embedded DNS server.")
+		if err := nc.dnsServer.Run(ctx); err != nil {
+			return fmt.Errorf("embedded DNS server failed: %w", err)
+		}
+		return nil
+	})
+
 	// Setup Docker network and synchronise containers to the cluster store.
-	errGroup.Go(
-		func() error {
-			return nc.prepareAndWatchDocker(ctx)
-		},
-	)
+	errGroup.Go(func() error {
+		return nc.prepareAndWatchDocker(ctx)
+	})
 
 	// Handle machine changes in the cluster. Handling machine and endpoint changes should be done
 	// in separate goroutines to avoid a deadlock when reconfiguring the network.
-	errGroup.Go(
-		func() error {
-			if err := nc.handleMachineChanges(ctx); err != nil {
-				return fmt.Errorf("handle new machines: %w", err)
-			}
-			return nil
-		},
-	)
+	errGroup.Go(func() error {
+		if err := nc.handleMachineChanges(ctx); err != nil {
+			return fmt.Errorf("handle new machines: %w", err)
+		}
+		return nil
+	})
 
 	// Watch for endpoint changes and update the machine state accordingly.
-	errGroup.Go(
-		func() error {
-			for {
-				select {
-				case e, ok := <-nc.endpointChanges:
-					if !ok {
-						// The channel was closed, stop watching for changes.
-						nc.endpointChanges = nil
-						return nil
-					}
-
-					nc.state.mu.Lock()
-					for i := range nc.state.Network.Peers {
-						if nc.state.Network.Peers[i].PublicKey.Equal(e.PublicKey) {
-							nc.state.Network.Peers[i].Endpoint = &e.Endpoint
-							break
-						}
-					}
-					if err := nc.state.Save(); err != nil {
-						slog.Error("Failed to save machine state.", "err", err)
-					}
-					nc.state.mu.Unlock()
-
-					slog.Debug("Preserved endpoint change in the machine state.",
-						"public_key", e.PublicKey, "endpoint", e.Endpoint)
-				case <-ctx.Done():
+	errGroup.Go(func() error {
+		for {
+			select {
+			case e, ok := <-nc.endpointChanges:
+				if !ok {
+					// The channel was closed, stop watching for changes.
+					nc.endpointChanges = nil
 					return nil
 				}
-			}
-		},
-	)
 
-	errGroup.Go(
-		func() error {
-			if err := nc.wgnet.Run(ctx); err != nil {
-				return fmt.Errorf("WireGuard network failed: %w", err)
+				nc.state.mu.Lock()
+				for i := range nc.state.Network.Peers {
+					if nc.state.Network.Peers[i].PublicKey.Equal(e.PublicKey) {
+						nc.state.Network.Peers[i].Endpoint = &e.Endpoint
+						break
+					}
+				}
+				if err := nc.state.Save(); err != nil {
+					slog.Error("Failed to save machine state.", "err", err)
+				}
+				nc.state.mu.Unlock()
+
+				slog.Debug("Preserved endpoint change in the machine state.",
+					"public_key", e.PublicKey, "endpoint", e.Endpoint)
+			case <-ctx.Done():
+				return nil
 			}
-			return nil
-		},
-	)
+		}
+	})
+
+	errGroup.Go(func() error {
+		if err := nc.wgnet.Run(ctx); err != nil {
+			return fmt.Errorf("WireGuard network failed: %w", err)
+		}
+		return nil
+	})
 
 	errGroup.Go(func() error {
 		slog.Info("Starting Caddyfile controller.")
@@ -180,16 +200,14 @@ func (nc *networkController) Run(ctx context.Context) error {
 	})
 
 	// Wait for the context to be done and stop the network API server.
-	errGroup.Go(
-		func() error {
-			<-ctx.Done()
-			slog.Info("Stopping network API server.")
-			// TODO: implement timeout for graceful shutdown.
-			nc.server.GracefulStop()
-			slog.Info("Network API server stopped.")
-			return nil
-		},
-	)
+	errGroup.Go(func() error {
+		<-ctx.Done()
+		slog.Info("Stopping network API server.")
+		// TODO: implement timeout for graceful shutdown.
+		nc.server.GracefulStop()
+		slog.Info("Network API server stopped.")
+		return nil
+	})
 
 	return errGroup.Wait()
 }
@@ -202,7 +220,7 @@ func (nc *networkController) prepareAndWatchDocker(ctx context.Context) error {
 		return fmt.Errorf("wait for Docker daemon: %w", err)
 	}
 
-	if err := manager.EnsureUncloudNetwork(ctx, nc.state.Network.Subnet); err != nil {
+	if err := manager.EnsureUncloudNetwork(ctx, nc.state.Network.Subnet, nc.dnsServer.ListenAddr()); err != nil {
 		return fmt.Errorf("ensure Docker network: %w", err)
 	}
 	slog.Info("Docker network configured.")

internal/machine/network/config.go

@@ -2,10 +2,11 @@ package network
 
 import (
 	"fmt"
-	"github.com/psviderski/uncloud/internal/secret"
-	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
 	"net"
 	"net/netip"
+
+	"github.com/psviderski/uncloud/internal/secret"
+	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
 )
 
 type Config struct {
@@ -13,7 +14,7 @@ type Config struct {
 	// in the subnet. Other IP addresses are allocated to containers running on the machine.
 	Subnet netip.Prefix
 	// ManagementIP is the IPv6 address assigned to the machine within the WireGuard network. This address is used
-	// for cluster management traffic, such as gRPC communication with the machine API server and Serf gossip.
+	// for cluster management traffic, such as gRPC communication with the machine API server and Corrosion gossip.
 	ManagementIP netip.Addr
 	PrivateKey   secret.Secret
 	PublicKey    secret.Secret
@@ -23,7 +24,7 @@ type Config struct {
 type PeerConfig struct {
 	Subnet *netip.Prefix `json:",omitempty"`
 	// ManagementIP is the IPv6 address assigned to the peer within the WireGuard network. This address is used
-	// for cluster management traffic, such as gRPC communication with the machine API server and Serf gossip.
+	// for cluster management traffic, such as gRPC communication with the machine API server and Corrosion gossip.
 	ManagementIP netip.Addr
 	Endpoint     *netip.AddrPort  `json:",omitempty"`
 	AllEndpoints []netip.AddrPort `json:",omitempty"`

internal/machine/network/ip.go

@@ -2,9 +2,10 @@ package network
 
 import (
 	"fmt"
-	"github.com/psviderski/uncloud/internal/secret"
 	"net"
 	"net/netip"
+
+	"github.com/psviderski/uncloud/internal/secret"
 )
 
 // MachineIP returns the IP address of the machine which is the first address in the subnet.

internal/ucind/cluster.go

@@ -4,17 +4,18 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"net/netip"
+	"time"
+
 	"github.com/cenkalti/backoff/v4"
 	"github.com/docker/docker/api/types/container"
 	"github.com/docker/docker/api/types/filters"
 	"github.com/docker/docker/api/types/network"
 	dockerclient "github.com/docker/docker/client"
-	"google.golang.org/protobuf/types/known/emptypb"
-	"net/netip"
-	"time"
 	"github.com/psviderski/uncloud/internal/machine"
 	"github.com/psviderski/uncloud/internal/machine/api/pb"
 	"github.com/psviderski/uncloud/internal/machine/cluster"
+	"google.golang.org/protobuf/types/known/emptypb"
 )
 
 const (
@@ -31,6 +32,29 @@ type CreateClusterOptions struct {
 	Machines int
 }
 
+func (c *Cluster) PopulateMachineIDs(ctx context.Context) error {
+	for i := range c.Machines {
+		if c.Machines[i].ID != "" {
+			continue
+		}
+
+		cli, err := c.Machines[i].Connect(ctx)
+		if err != nil {
+			return fmt.Errorf("connect to machine '%s': %w", c.Machines[i].Name, err)
+		}
+		//goland:noinspection GoDeferInLoop
+		defer cli.Close()
+
+		m, err := cli.Inspect(ctx, &emptypb.Empty{})
+		if err != nil {
+			return fmt.Errorf("inspect machine '%s': %w", c.Machines[i].Name, err)
+		}
+		c.Machines[i].ID = m.Id
+	}
+
+	return nil
+}
+
 func (p *Provisioner) CreateCluster(ctx context.Context, name string, opts CreateClusterOptions) (Cluster, error) {
 	var c Cluster
 
@@ -74,12 +98,15 @@ func (p *Provisioner) CreateCluster(ctx context.Context, name string, opts Creat
 	if err = p.initCluster(ctx, c.Machines); err != nil {
 		return c, err
 	}
+	if err = c.PopulateMachineIDs(ctx); err != nil {
+		return c, fmt.Errorf("populate machine IDs: %w", err)
+	}
 
 	if p.configUpdater != nil {
 		if err = p.configUpdater.AddCluster(c); err != nil {
 			return c, fmt.Errorf("add cluster to Uncloud config: %w", err)
 		}
-		fmt.Printf("Cluster '%s' added to Uncloud config.\n", c.Name)
+		fmt.Printf("Cluster '%s' added to Uncloud config as the current context.\n", name)
 	}
 
 	return c, nil
@@ -89,7 +116,7 @@ func (p *Provisioner) initCluster(ctx context.Context, machines []Machine) error
 	// Init a new cluster on the first machine.
 	initMachine := machines[0]
 
-	if err := p.WaitMachineReady(ctx, initMachine, 30*time.Second); err != nil {
+	if err := WaitMachineReady(ctx, initMachine, 30*time.Second); err != nil {
 		return fmt.Errorf("wait for machine %q to be ready: %w", initMachine.Name, err)
 	}
 
@@ -111,7 +138,7 @@ func (p *Provisioner) initCluster(ctx context.Context, machines []Machine) error
 
 	// Join the rest of the machines to the cluster.
 	for _, m := range machines[1:] {
-		if err = p.WaitMachineReady(ctx, m, 5*time.Second); err != nil {
+		if err = WaitMachineReady(ctx, m, 5*time.Second); err != nil {
 			return fmt.Errorf("wait for machine %q to be ready: %w", m.Name, err)
 		}
 
@@ -215,13 +242,17 @@ func (p *Provisioner) InspectCluster(ctx context.Context, name string) (Cluster,
 		c.Machines = append(c.Machines, m)
 	}
 
+	if err = c.PopulateMachineIDs(ctx); err != nil {
+		return c, fmt.Errorf("populate machine IDs: %w", err)
+	}
+
 	return c, nil
 }
 
 // WaitClusterReady waits for all machines in the cluster to be ready and UP.
 func (p *Provisioner) WaitClusterReady(ctx context.Context, c Cluster, timeout time.Duration) error {
 	firstMachine := c.Machines[0]
-	if err := p.WaitMachineReady(ctx, firstMachine, timeout); err != nil {
+	if err := WaitMachineReady(ctx, firstMachine, timeout); err != nil {
 		return fmt.Errorf("wait for machine '%s' to be ready: %w", firstMachine.Name, err)
 	}
 
@@ -238,7 +269,7 @@ func (p *Provisioner) WaitClusterReady(ctx context.Context, c Cluster, timeout t
 	), ctx)
 
 	checkMachinesUp := func() error {
-		machines, err := cli.ListMachines(ctx)
+		machines, err := cli.ListMachines(ctx, nil)
 		if err != nil {
 			return fmt.Errorf("list machines: %w", err)
 		}
@@ -278,7 +309,12 @@ func (p *Provisioner) RemoveCluster(ctx context.Context, name string) error {
 		return fmt.Errorf("list Docker containers with cluster name '%s': %w", name, err)
 	}
 	for _, c := range containers {
-		if err = p.dockerCli.ContainerRemove(ctx, c.ID, container.RemoveOptions{Force: true}); err != nil {
+		removeOpts := container.RemoveOptions{
+			// Remove anonymous volumes attached to the container (typically /var/lib/docker).
+			RemoveVolumes: true,
+			Force:         true,
+		}
+		if err = p.dockerCli.ContainerRemove(ctx, c.ID, removeOpts); err != nil {
 			return fmt.Errorf("remove Docker container '%s': %w", c.ID, err)
 		}
 	}

internal/ucind/config.go

@@ -2,6 +2,7 @@ package ucind
 
 import (
 	"fmt"
+
 	"github.com/psviderski/uncloud/internal/cli/config"
 )
 
@@ -19,22 +20,22 @@ func (u *ConfigUpdater) AddCluster(c Cluster) error {
 		return fmt.Errorf("read Uncloud config: %w", err)
 	}
 
-	if _, ok := cfg.Clusters[c.Name]; ok {
-		return fmt.Errorf("cluster '%s' already exists", c.Name)
+	if _, ok := cfg.Contexts[c.Name]; ok {
+		return fmt.Errorf("cluster context '%s' already exists", c.Name)
 	}
 
-	clusterCfg := &config.Cluster{
+	clusterCfg := &config.Context{
 		Name:        c.Name,
 		Connections: make([]config.MachineConnection, len(c.Machines)),
 	}
 	for i, m := range c.Machines {
 		clusterCfg.Connections[i] = config.MachineConnection{
-			TCP: m.APIAddress,
+			TCP: &m.APIAddress,
 		}
 	}
 
-	cfg.Clusters[c.Name] = clusterCfg
-	cfg.CurrentCluster = c.Name
+	cfg.Contexts[c.Name] = clusterCfg
+	cfg.CurrentContext = c.Name
 
 	if err = cfg.Save(); err != nil {
 		return fmt.Errorf("save config: %w", err)
@@ -48,17 +49,17 @@ func (u *ConfigUpdater) RemoveCluster(name string) error {
 		return fmt.Errorf("read Uncloud config: %w", err)
 	}
 
-	if _, ok := cfg.Clusters[name]; !ok {
+	if _, ok := cfg.Contexts[name]; !ok {
 		return nil
 	}
 
-	delete(cfg.Clusters, name)
+	delete(cfg.Contexts, name)
 
-	if cfg.CurrentCluster == name {
-		cfg.CurrentCluster = ""
+	if cfg.CurrentContext == name {
+		cfg.CurrentContext = ""
 	}
-	if _, ok := cfg.Clusters["default"]; ok {
-		cfg.CurrentCluster = "default"
+	if _, ok := cfg.Contexts["default"]; ok {
+		cfg.CurrentContext = "default"
 	}
 
 	if err = cfg.Save(); err != nil {

internal/ucind/machine.go

@@ -4,6 +4,11 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"io"
+	"net"
+	"net/netip"
+	"time"
+
 	"github.com/cenkalti/backoff/v4"
 	"github.com/docker/docker/api/types/container"
 	"github.com/docker/docker/api/types/image"
@@ -13,10 +18,6 @@ import (
 	"github.com/psviderski/uncloud/pkg/client"
 	"github.com/psviderski/uncloud/pkg/client/connector"
 	"google.golang.org/protobuf/types/known/emptypb"
-	"io"
-	"net"
-	"net/netip"
-	"time"
 )
 
 const (
@@ -29,6 +30,7 @@ const (
 type Machine struct {
 	ClusterName   string
 	ContainerName string
+	ID            string
 	Name          string
 	APIAddress    netip.AddrPort
 }
@@ -185,7 +187,7 @@ func randomMachineName() (string, error) {
 }
 
 // WaitMachineReady waits for the machine API to respond.
-func (p *Provisioner) WaitMachineReady(ctx context.Context, m Machine, timeout time.Duration) error {
+func WaitMachineReady(ctx context.Context, m Machine, timeout time.Duration) error {
 	cli, err := m.Connect(ctx)
 	if err != nil {
 		return fmt.Errorf("connect to machine over TCP '%s': %w", m.APIAddress, err)

internal/version/version.go

@@ -0,0 +1,7 @@
+package version
+
+var version string
+
+func String() string {
+	return version
+}

pkg/api/client.go

@@ -6,6 +6,7 @@ import (
 	"slices"
 
 	"github.com/docker/docker/api/types/container"
+	"github.com/docker/docker/api/types/volume"
 	"github.com/psviderski/uncloud/internal/machine/api/pb"
 	"google.golang.org/grpc/metadata"
 )
@@ -16,6 +17,7 @@ type Client interface {
 	ImageClient
 	MachineClient
 	ServiceClient
+	VolumeClient
 }
 
 type ContainerClient interface {
@@ -39,29 +41,41 @@ type ImageClient interface {
 
 type MachineClient interface {
 	InspectMachine(ctx context.Context, id string) (*pb.MachineMember, error)
-	ListMachines(ctx context.Context) ([]*pb.MachineMember, error)
+	ListMachines(ctx context.Context, filter *MachineFilter) (MachineMembersList, error)
 }
 
 type ServiceClient interface {
+	RunService(ctx context.Context, spec ServiceSpec) (RunServiceResponse, error)
 	InspectService(ctx context.Context, id string) (Service, error)
+	RemoveService(ctx context.Context, id string) error
+}
+
+type VolumeClient interface {
+	CreateVolume(ctx context.Context, machineNameOrID string, opts volume.CreateOptions) (MachineVolume, error)
+	ListVolumes(ctx context.Context, filter *VolumeFilter) ([]MachineVolume, error)
+	RemoveVolume(ctx context.Context, machineNameOrID, volumeName string, force bool) error
 }
 
 // ProxyMachinesContext returns a new context that proxies gRPC requests to the specified machines.
 // If namesOrIDs is nil, all machines are included.
-func ProxyMachinesContext(ctx context.Context, cli MachineClient, namesOrIDs []string) (context.Context, error) {
-	machines, err := cli.ListMachines(ctx)
+func ProxyMachinesContext(
+	ctx context.Context, cli MachineClient, namesOrIDs []string,
+) (context.Context, MachineMembersList, error) {
+	machines, err := cli.ListMachines(ctx, nil)
 	if err != nil {
-		return nil, fmt.Errorf("list machines: %w", err)
+		return nil, nil, fmt.Errorf("list machines: %w", err)
 	}
 
+	var proxiedMachines MachineMembersList
 	md := metadata.New(nil)
 	for _, m := range machines {
-		if namesOrIDs == nil ||
+		if len(namesOrIDs) == 0 ||
 			slices.Contains(namesOrIDs, m.Machine.Name) || slices.Contains(namesOrIDs, m.Machine.Id) {
+			proxiedMachines = append(proxiedMachines, m)
 			machineIP, _ := m.Machine.Network.ManagementIp.ToAddr()
 			md.Append("machines", machineIP.String())
 		}
 	}
 
-	return metadata.NewOutgoingContext(ctx, md), nil
+	return metadata.NewOutgoingContext(ctx, md), proxiedMachines, nil
 }

pkg/api/container.go

@@ -3,6 +3,7 @@ package api
 import (
 	"encoding/json"
 	"fmt"
+	"net/netip"
 	"strings"
 	"time"
 
@@ -11,6 +12,9 @@ import (
 )
 
 const (
+	// DockerNetworkName is the name of the Docker network used by uncloud. Keep the value in sync with NetworkName
+	// in internal/machine/docker/manager.go.
+	DockerNetworkName = "uncloud"
 	LabelManaged      = "uncloud.managed"
 	LabelServiceID    = "uncloud.service.id"
 	LabelServiceName  = "uncloud.service.name"
@@ -90,6 +94,22 @@ func (c *Container) HumanState() (string, error) {
 		c.State.ExitCode, units.HumanDuration(time.Now().UTC().Sub(finishedAt))), nil
 }
 
+// UncloudNetworkIP returns the IP address of the container in the uncloud Docker network.
+func (c *Container) UncloudNetworkIP() netip.Addr {
+	network, ok := c.NetworkSettings.Networks[DockerNetworkName]
+	if !ok {
+		// Container is not connected to the uncloud Docker network (could be host network).
+		return netip.Addr{}
+	}
+
+	ip, err := netip.ParseAddr(network.IPAddress)
+	if err != nil {
+		return netip.Addr{}
+	}
+
+	return ip
+}
+
 func (c *Container) UnmarshalJSON(data []byte) error {
 	// A temporary type that's identical to Container but doesn't have the UnmarshalJSON method.
 	type ContainerAlias Container
@@ -110,11 +130,6 @@ type ServiceContainer struct {
 	ServiceSpec ServiceSpec
 }
 
-type MachineContainer struct {
-	MachineID string
-	Container Container
-}
-
 // ServiceID returns the ID of the service this container belongs to.
 func (c *ServiceContainer) ServiceID() string {
 	return c.Config.Labels[LabelServiceID]

pkg/api/machine.go

@@ -0,0 +1,38 @@
+package api
+
+import "github.com/psviderski/uncloud/internal/machine/api/pb"
+
+// MachineFilter defines criteria to filter machines in ListMachines.
+type MachineFilter struct {
+	// Available filters machines that are not DOWN.
+	Available bool
+	// NamesOrIDs filters machines by their names or IDs.
+	NamesOrIDs []string
+}
+
+type MachineMembersList []*pb.MachineMember
+
+func (m MachineMembersList) FindByManagementIP(ip string) *pb.MachineMember {
+	for _, machine := range m {
+		addr, err := machine.Machine.Network.ManagementIp.ToAddr()
+		if err != nil {
+			continue
+		}
+
+		if addr.String() == ip {
+			return machine
+		}
+	}
+
+	return nil
+}
+
+func (m MachineMembersList) FindByNameOrID(nameOrID string) *pb.MachineMember {
+	for _, machine := range m {
+		if machine.Machine.Id == nameOrID || machine.Machine.Name == nameOrID {
+			return machine
+		}
+	}
+
+	return nil
+}

pkg/api/placement.go

@@ -0,0 +1,8 @@
+package api
+
+// Placement defines the placement constraints for service containers.
+type Placement struct {
+	// Machines is a list of machine names or IDs where service containers are allowed to be deployed.
+	// If empty, containers can be deployed to any available machine in the cluster.
+	Machines []string `json:",omitempty"`
+}

pkg/api/resources.go

@@ -0,0 +1,16 @@
+package api
+
+const (
+	MilliCore = 1_000_000
+	Core      = 1000 * MilliCore
+)
+
+type ContainerResources struct {
+	// CPU is the maximum amount of CPU nanocores (1000000000 = 1 CPU core) the container can use.
+	CPU int64
+	// Memory is the maximum amount of memory (in bytes) the container can use.
+	Memory int64
+	// MemoryReservation is the minimum amount of memory (in bytes) the container needs to run efficiently.
+	// TODO: implement a placement constraint that checks available memory on machines.
+	MemoryReservation int64
+}

pkg/api/service.go

@@ -4,11 +4,12 @@ import (
 	"encoding/json"
 	"fmt"
 	"maps"
-	"reflect"
 	"regexp"
 	"slices"
 
 	"github.com/distribution/reference"
+	"github.com/google/go-cmp/cmp"
+	"github.com/google/go-cmp/cmp/cmpopts"
 	"github.com/psviderski/uncloud/internal/machine/api/pb"
 )
 
@@ -42,10 +43,35 @@ type ServiceSpec struct {
 	// Mode is the replication mode of the service. Default is ServiceModeReplicated if empty.
 	Mode string
 	Name string
+	// Placement defines the placement constraints for the service.
+	Placement Placement
 	// Ports defines what service ports to publish to make the service accessible outside the cluster.
 	Ports []PortSpec
 	// Replicas is the number of containers to run for the service. Only valid for a replicated service.
 	Replicas uint `json:",omitempty"`
+	// Volumes is list of data volumes that can be mounted into the container.
+	Volumes []VolumeSpec
+}
+
+func (s *ServiceSpec) Volume(name string) (VolumeSpec, bool) {
+	for _, v := range s.Volumes {
+		if v.Name == name {
+			return v, true
+		}
+	}
+	return VolumeSpec{}, false
+}
+
+// MountedDockerVolumes returns the list of volumes of VolumeTypeVolume type that are mounted into the container.
+func (s *ServiceSpec) MountedDockerVolumes() []VolumeSpec {
+	volumes := make(map[string]VolumeSpec)
+	for _, m := range s.Container.VolumeMounts {
+		if v, ok := s.Volume(m.VolumeName); ok && v.Type == VolumeTypeVolume {
+			volumes[v.Name] = v
+		}
+	}
+
+	return slices.Collect(maps.Values(volumes))
 }
 
 func (s *ServiceSpec) SetDefaults() ServiceSpec {
@@ -60,6 +86,10 @@ func (s *ServiceSpec) SetDefaults() ServiceSpec {
 	}
 	spec.Container = spec.Container.SetDefaults()
 
+	for i, v := range spec.Volumes {
+		spec.Volumes[i] = v.SetDefaults()
+	}
+
 	return spec
 }
 
@@ -85,6 +115,26 @@ func (s *ServiceSpec) Validate() error {
 
 	// TODO: validate there is no conflict between ports.
 
+	volumeNames := make(map[string]struct{})
+	for _, v := range s.Volumes {
+		if err := v.Validate(); err != nil {
+			return fmt.Errorf("invalid volume: %w", err)
+		}
+		if _, ok := volumeNames[v.Name]; ok {
+			return fmt.Errorf("duplicate volume name: '%s'", v.Name)
+		}
+		volumeNames[v.Name] = struct{}{}
+	}
+
+	for _, m := range s.Container.VolumeMounts {
+		if !slices.ContainsFunc(s.Volumes, func(v VolumeSpec) bool {
+			return v.Name == m.VolumeName
+		}) {
+			return fmt.Errorf("volume mount references a volume that doesn't exist in the service spec: '%s'",
+				m.VolumeName)
+		}
+	}
+
 	return nil
 }
 
@@ -97,6 +147,13 @@ func (s *ServiceSpec) Clone() ServiceSpec {
 	}
 	spec.Container = s.Container.Clone()
 
+	if s.Volumes != nil {
+		spec.Volumes = make([]VolumeSpec, len(s.Volumes))
+		for i, v := range s.Volumes {
+			spec.Volumes[i] = v.Clone()
+		}
+	}
+
 	return spec
 }
 
@@ -107,13 +164,27 @@ type ContainerSpec struct {
 	Command []string
 	// Entrypoint overrides the default ENTRYPOINT of the image.
 	Entrypoint []string
-	Image      string
+	// Env defines the environment variables to set inside the container.
+	Env   EnvVars
+	Image string
 	// Run a custom init inside the container. If nil, use the daemon's configured settings.
 	Init *bool
+	// LogDriver overrides the default logging driver for the container. Each Docker daemon can have its own default.
+	LogDriver *LogDriver
+	// Privileged gives extended privileges to the container. This is a security risk and should be used with caution.
+	Privileged bool
 	// PullPolicy determines when to pull the image from the registry or use the image already available in the cluster.
 	// Default is PullPolicyMissing if empty.
 	PullPolicy string
-	// List of volumes to bind mount into the container.
+	// Resource allocation for the container.
+	Resources ContainerResources
+	// User overrides the default user of the image used to run the container. Format: user|UID[:group|GID].
+	User string
+	// VolumeMounts specifies how volumes are mounted into the container filesystem.
+	// Each mount references a volume defined in ServiceSpec.Volumes.
+	VolumeMounts []VolumeMount
+	// Volumes is list of data volumes to mount into the container.
+	// TODO(lhf): delete all usage, has been replaced with []VolumeMounts.
 	Volumes []string
 }
 
@@ -129,7 +200,13 @@ func (s *ContainerSpec) SetDefaults() ContainerSpec {
 
 func (s *ContainerSpec) Validate() error {
 	if _, err := reference.ParseDockerRef(s.Image); err != nil {
-		return fmt.Errorf("invalid image: %w", err)
+		return fmt.Errorf("invalid image '%s': %w", s.Image, err)
+	}
+
+	for _, m := range s.VolumeMounts {
+		if err := m.Validate(); err != nil {
+			return fmt.Errorf("invalid volume mount: %w", err)
+		}
 	}
 
 	return nil
@@ -142,7 +219,10 @@ func (s *ContainerSpec) Equals(spec ContainerSpec) bool {
 	slices.Sort(orig.Volumes)
 	slices.Sort(spec.Volumes)
 
-	return reflect.DeepEqual(orig, spec)
+	sortVolumeMounts(orig.VolumeMounts)
+	sortVolumeMounts(spec.VolumeMounts)
+
+	return cmp.Equal(orig, spec, cmpopts.EquateEmpty())
 }
 
 func (s *ContainerSpec) Clone() ContainerSpec {
@@ -156,14 +236,51 @@ func (s *ContainerSpec) Clone() ContainerSpec {
 		spec.Entrypoint = make([]string, len(s.Entrypoint))
 		copy(spec.Entrypoint, s.Entrypoint)
 	}
+	if s.LogDriver != nil {
+		logDriver := *s.LogDriver
+		if s.LogDriver.Options != nil {
+			logDriver.Options = maps.Clone(s.LogDriver.Options)
+		}
+		spec.LogDriver = &logDriver
+	}
 	if s.Volumes != nil {
 		spec.Volumes = make([]string, len(s.Volumes))
 		copy(spec.Volumes, s.Volumes)
 	}
+	if s.VolumeMounts != nil {
+		spec.VolumeMounts = make([]VolumeMount, len(s.VolumeMounts))
+		copy(spec.VolumeMounts, s.VolumeMounts)
+	}
 
 	return spec
 }
 
+type EnvVars map[string]string
+
+// ToSlice converts the environment variables to a slice of strings in the format "key=value".
+func (e EnvVars) ToSlice() []string {
+	env := make([]string, 0, len(e))
+	for k, v := range e {
+		if k == "" {
+			continue
+		}
+		env = append(env, fmt.Sprintf("%s=%s", k, v))
+	}
+	return env
+}
+
+type LogDriver struct {
+	// Name of the logging driver to use.
+	Name string
+	// Options is the configuration options to pass to the logging driver.
+	Options map[string]string
+}
+
+type RunServiceResponse struct {
+	ID   string
+	Name string
+}
+
 type Service struct {
 	ID         string
 	Name       string

pkg/api/volume.go

@@ -0,0 +1,287 @@
+package api
+
+import (
+	"fmt"
+	"reflect"
+	"slices"
+	"sort"
+	"strings"
+
+	"github.com/docker/docker/api/types/mount"
+	"github.com/docker/docker/api/types/volume"
+	"github.com/google/go-cmp/cmp"
+	"github.com/google/go-cmp/cmp/cmpopts"
+)
+
+const (
+	// VolumeTypeBind is the type for mounting a host path.
+	VolumeTypeBind = "bind"
+	// VolumeTypeVolume is the type for mounting a named Docker volume.
+	VolumeTypeVolume = "volume"
+	// VolumeTypeTmpfs is the type for mounting a temporary file system stored in the host memory.
+	VolumeTypeTmpfs = "tmpfs"
+
+	// VolumeDriverLocal is the default volume driver for local named Docker volumes.
+	VolumeDriverLocal = "local"
+)
+
+// VolumeSpec defines a volume mount specification. As of April 2025, the volume must be created before deploying
+// a service using it.
+type VolumeSpec struct {
+	// Name is the volume name used to reference this volume in container mounts.
+	Name          string
+	Type          string
+	BindOptions   *BindOptions        `json:",omitempty"`
+	TmpfsOptions  *mount.TmpfsOptions `json:",omitempty"`
+	VolumeOptions *VolumeOptions      `json:",omitempty"`
+}
+
+// BindOptions represents options for a bind volume.
+type BindOptions struct {
+	// HostPath is the absolute path on the host filesystem.
+	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.
+	CreateHostPath bool              `json:",omitempty"`
+	Propagation    mount.Propagation `json:",omitempty"`
+	Recursive      string            `json:",omitempty"`
+}
+
+// VolumeOptions represents options for a named Docker volume.
+type VolumeOptions struct {
+	// Driver specifies the volume driver and its options for volume creation.
+	// TODO: It seems we don't really need Driver and Labels if we only support externally managed volumes.
+	//  However we may need them in the future if we add support for isolated container-scoped volumes.
+	Driver *mount.Driver `json:",omitempty"`
+	// Labels are key-value metadata to apply to the volume if creating a new volume.
+	Labels map[string]string `json:",omitempty"`
+	// Name of the named Docker volume to use. If not specified, defaults to the VolumeSpec.Name.
+	Name string `json:",omitempty"`
+	// NoCopy prevents automatic copying of data from the container mount path to the volume.
+	NoCopy bool `json:",omitempty"`
+	// SubPath is the path within the volume to mount instead of its root.
+	SubPath string `json:",omitempty"`
+}
+
+func (v *VolumeSpec) DockerVolumeName() string {
+	if v.Type != VolumeTypeVolume {
+		return ""
+	}
+	if v.VolumeOptions != nil && v.VolumeOptions.Name != "" {
+		return v.VolumeOptions.Name
+	}
+	return v.Name
+}
+
+func (v *VolumeSpec) SetDefaults() VolumeSpec {
+	spec := v.Clone()
+
+	if spec.Type == VolumeTypeVolume {
+		if spec.VolumeOptions == nil {
+			spec.VolumeOptions = &VolumeOptions{}
+		}
+		if spec.VolumeOptions.Name == "" {
+			spec.VolumeOptions.Name = spec.Name
+		}
+	}
+	// TODO: set explicit default values for Propagation and Recursive for bind mounts?
+
+	return spec
+}
+
+func (v *VolumeSpec) Validate() error {
+	if v.Name == "" {
+		return fmt.Errorf("volume name must not be empty")
+	}
+
+	switch v.Type {
+	case VolumeTypeBind:
+		if v.BindOptions == nil {
+			return fmt.Errorf("bind volume must have bind options")
+		}
+	case VolumeTypeVolume, VolumeTypeTmpfs:
+	default:
+		return fmt.Errorf("invalid volume type: '%s', must be one of '%s', '%s', '%s')",
+			v.Type, VolumeTypeBind, VolumeTypeVolume, VolumeTypeTmpfs)
+	}
+
+	return nil
+}
+
+func (v *VolumeSpec) Equals(other VolumeSpec) bool {
+	vol := v.SetDefaults()
+	other = other.SetDefaults()
+
+	return cmp.Equal(vol, other, cmpopts.EquateEmpty())
+}
+
+// MatchesDockerVolume checks if this VolumeSpec is compatible with the given named Docker volume.
+// In other words, it checks if the spec could be used to mount the volume.
+func (v *VolumeSpec) MatchesDockerVolume(vol volume.Volume) bool {
+	if v.Type != VolumeTypeVolume {
+		return false
+	}
+	spec := v.SetDefaults()
+
+	if spec.DockerVolumeName() != vol.Name {
+		return false
+	}
+
+	// The volume spec may not define the driver which means to use the default driver if creating a new volume
+	// or accept any driver when mounting an existing volume. If the driver is specified in the spec, the spec's
+	// driver and options must match the volume's driver and options.
+	if spec.VolumeOptions.Driver != nil {
+		volDriver := vol.Driver
+		if volDriver == "" {
+			volDriver = VolumeDriverLocal
+		}
+
+		if spec.VolumeOptions.Driver.Name != volDriver {
+			return false
+		}
+
+		if !reflect.DeepEqual(spec.VolumeOptions.Driver.Options, vol.Options) {
+			return false
+		}
+	}
+
+	return true
+}
+
+func (v *VolumeSpec) Clone() VolumeSpec {
+	spec := *v
+
+	if v.BindOptions != nil {
+		opts := *v.BindOptions
+		spec.BindOptions = &opts
+	}
+
+	if v.VolumeOptions != nil {
+		opts := *v.VolumeOptions
+		if v.VolumeOptions.Driver != nil {
+			driver := *v.VolumeOptions.Driver
+			if driver.Options != nil {
+				driver.Options = make(map[string]string, len(v.VolumeOptions.Driver.Options))
+				for k, val := range v.VolumeOptions.Driver.Options {
+					driver.Options[k] = val
+				}
+			}
+			opts.Driver = &driver
+		}
+
+		if opts.Labels != nil {
+			opts.Labels = make(map[string]string, len(v.VolumeOptions.Labels))
+			for k, val := range v.VolumeOptions.Labels {
+				opts.Labels[k] = val
+			}
+		}
+
+		spec.VolumeOptions = &opts
+	}
+
+	if v.TmpfsOptions != nil {
+		opts := *v.TmpfsOptions
+		opts.Options = make([][]string, len(v.TmpfsOptions.Options))
+		for i, opt := range v.TmpfsOptions.Options {
+			opts.Options[i] = make([]string, len(opt))
+			copy(opts.Options[i], opt)
+		}
+		spec.TmpfsOptions = &opts
+	}
+
+	return spec
+}
+
+// VolumeMount defines how a volume is mounted into a container.
+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 string
+	// ReadOnly indicates whether the volume should be mounted read-only.
+	// If false (default), the volume is mounted read-write.
+	ReadOnly bool `json:",omitempty"`
+}
+
+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)
+	}
+
+	return nil
+}
+
+func sortVolumeMounts(mounts []VolumeMount) {
+	sort.Slice(mounts, func(i, j int) bool {
+		if mounts[i].VolumeName != mounts[j].VolumeName {
+			return mounts[i].VolumeName < mounts[j].VolumeName
+		}
+		if mounts[i].ContainerPath != mounts[j].ContainerPath {
+			return mounts[i].ContainerPath < mounts[j].ContainerPath
+		}
+		if mounts[i].ReadOnly != mounts[j].ReadOnly {
+			if !mounts[i].ReadOnly {
+				return true
+			}
+		}
+		return false
+	})
+}
+
+// MachineVolume represents a volume on a specific machine.
+type MachineVolume struct {
+	// MachineID is the ID of the machine where the volume exists.
+	MachineID string
+	// MachineName is the name of the machine where the volume exists.
+	MachineName string
+	// Volume is the Docker volume model.
+	Volume volume.Volume
+}
+
+// VolumeFilter defines criteria to filter volumes in ListVolumes.
+type VolumeFilter struct {
+	// Driver filters volumes by storage driver name.
+	Driver string
+	// Labels filters volumes by label key-value pairs. Volumes must match all labels.
+	Labels map[string]string
+	// MachineIDs filters volumes to those on the specified machines (names or IDs).
+	Machines []string
+	// Names filters volumes by name. Volumes must match one of the names.
+	Names []string
+}
+
+// MatchesFilter checks if a volume matches the specified filter criteria.
+func (v *MachineVolume) MatchesFilter(filter *VolumeFilter) bool {
+	if filter == nil {
+		return true
+	}
+	// Filter by name.
+	if len(filter.Names) > 0 && !slices.Contains(filter.Names, v.Volume.Name) {
+		return false
+	}
+	// Filter by driver.
+	if filter.Driver != "" && v.Volume.Driver != filter.Driver {
+		return false
+	}
+	// Filter by labels.
+	for key, value := range filter.Labels {
+		labelValue, exists := v.Volume.Labels[key]
+		if !exists || labelValue != value {
+			return false
+		}
+	}
+	// Filter by machines.
+	if len(filter.Machines) > 0 {
+		if !slices.ContainsFunc(filter.Machines, func(nameOrID string) bool {
+			return v.MachineName == nameOrID || v.MachineID == nameOrID
+		}) {
+			return false
+		}
+	}
+
+	return true
+}

pkg/client/caddy.go

@@ -2,13 +2,14 @@ package client
 
 import (
 	"fmt"
+	"regexp"
+
 	"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/pkg/api"
 	"github.com/psviderski/uncloud/pkg/client/deploy"
-	"regexp"
 )
 
 const (
@@ -22,7 +23,7 @@ var caddyImageTagRegex = regexp.MustCompile(`^2\.\d+\.\d+$`)
 // NewCaddyDeployment 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 string, filter deploy.MachineFilter) (*deploy.Deployment, error) {
+func (cli *Client) NewCaddyDeployment(image string, placement api.Placement) (*deploy.Deployment, error) {
 	latest, err := LatestCaddyImage()
 	if err != nil {
 		return nil, fmt.Errorf("look up latest Caddy image: %w", err)
@@ -36,10 +37,16 @@ func (cli *Client) NewCaddyDeployment(image string, filter deploy.MachineFilter)
 		Container: api.ContainerSpec{
 			Command: []string{"caddy", "run", "-c", "/config/caddy.json", "--watch"},
 			Image:   image,
-			Volumes: []string{"/var/lib/uncloud/caddy:/config"},
+			VolumeMounts: []api.VolumeMount{
+				{
+					VolumeName:    "config",
+					ContainerPath: "/config",
+				},
+			},
 		},
-		Mode: api.ServiceModeGlobal,
-		Name: CaddyServiceName,
+		Mode:      api.ServiceModeGlobal,
+		Name:      CaddyServiceName,
+		Placement: placement,
 		Ports: []api.PortSpec{
 			{
 				PublishedPort: 80,
@@ -54,9 +61,18 @@ func (cli *Client) NewCaddyDeployment(image string, filter deploy.MachineFilter)
 				Mode:          api.PortModeHost,
 			},
 		},
+		Volumes: []api.VolumeSpec{
+			{
+				Name: "config",
+				Type: api.VolumeTypeBind,
+				BindOptions: &api.BindOptions{
+					HostPath: "/var/lib/uncloud/caddy",
+				},
+			},
+		},
 	}
 
-	return cli.NewDeployment(spec, &deploy.RollingStrategy{MachineFilter: filter}), nil
+	return cli.NewDeployment(spec, nil), nil
 }
 
 // LatestCaddyImage returns the latest image of the official Caddy Docker image on Docker Hub.

pkg/client/cluster.go

@@ -1,31 +0,0 @@
-package client
-
-import (
-	"context"
-	"github.com/psviderski/uncloud/internal/machine/api/pb"
-	"github.com/psviderski/uncloud/pkg/api"
-	"google.golang.org/protobuf/types/known/emptypb"
-)
-
-func (cli *Client) InspectMachine(ctx context.Context, id string) (*pb.MachineMember, error) {
-	machines, err := cli.ListMachines(ctx)
-	if err != nil {
-		return nil, err
-	}
-
-	for _, m := range machines {
-		if m.Machine.Id == id || m.Machine.Name == id {
-			return m, nil
-		}
-	}
-
-	return nil, api.ErrNotFound
-}
-
-func (cli *Client) ListMachines(ctx context.Context) ([]*pb.MachineMember, error) {
-	resp, err := cli.ClusterClient.ListMachines(ctx, &emptypb.Empty{})
-	if err != nil {
-		return nil, err
-	}
-	return resp.Machines, nil
-}

pkg/client/compose/deploy.go

@@ -4,10 +4,16 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"slices"
+	"strings"
+	"sync"
+
 	"github.com/compose-spec/compose-go/v2/graph"
 	"github.com/compose-spec/compose-go/v2/types"
+	"github.com/docker/docker/api/types/volume"
 	"github.com/psviderski/uncloud/pkg/api"
 	"github.com/psviderski/uncloud/pkg/client/deploy"
+	"github.com/psviderski/uncloud/pkg/client/deploy/scheduler"
 )
 
 type Client interface {
@@ -19,10 +25,16 @@ type Deployment struct {
 	Client       Client
 	Project      *types.Project
 	SpecResolver *deploy.ServiceSpecResolver
+	state        *scheduler.ClusterState
 	plan         *deploy.SequenceOperation
 }
 
 func NewDeployment(ctx context.Context, cli Client, project *types.Project) (*Deployment, error) {
+	state, err := scheduler.InspectClusterState(ctx, cli)
+	if err != nil {
+		return nil, fmt.Errorf("inspect cluster state: %w", err)
+	}
+
 	domain, err := cli.GetDomain(ctx)
 	if err != nil && !errors.Is(err, api.ErrNotFound) {
 		return nil, fmt.Errorf("get cluster domain: %w", err)
@@ -31,13 +43,13 @@ func NewDeployment(ctx context.Context, cli Client, project *types.Project) (*De
 	resolver := &deploy.ServiceSpecResolver{
 		// If the domain is not found (not reserved), an empty domain is used for the resolver.
 		ClusterDomain: domain,
-		// TODO: provide an image resolver.
 	}
 
 	return &Deployment{
 		Client:       cli,
 		Project:      project,
 		SpecResolver: resolver,
+		state:        state,
 	}, nil
 }
 
@@ -45,63 +57,133 @@ func (d *Deployment) Plan(ctx context.Context) (deploy.SequenceOperation, error)
 	if d.plan != nil {
 		return *d.plan, nil
 	}
-
 	plan := deploy.SequenceOperation{}
+
+	// Generate service specs for all services in the project.
+	var serviceSpecs []api.ServiceSpec
+	var mu sync.Mutex
 	err := graph.InDependencyOrder(ctx, d.Project,
 		func(ctx context.Context, name string, _ types.ServiceConfig) error {
 			spec, err := d.ServiceSpec(name)
 			if err != nil {
-				return fmt.Errorf("convert compose service '%s' to service spec: %w", name, err)
+				return err
 			}
-
-			// TODO: properly handle depends_on conditions in the service deployment plan as the first operation.
-			deployment := deploy.NewDeployment(d.Client, spec, nil)
-			if err != nil {
-				return fmt.Errorf("create deployment for service '%s': %w", name, err)
-			}
-
-			servicePlan, err := deployment.Plan(ctx)
-			if err != nil {
-				return fmt.Errorf("create deployment plan for service '%s': %w", name, err)
-			}
-
-			// Skip no-op (up-to-date) service plans.
-			if len(servicePlan.Operations) > 0 {
-				plan.Operations = append(plan.Operations, &servicePlan)
-			}
-
+			// The graph is traversed concurrently, so we need to use a mutex to protect the shared slice.
+			mu.Lock()
+			serviceSpecs = append(serviceSpecs, spec)
+			mu.Unlock()
 			return nil
 		})
 	if err != nil {
-		d.plan = &plan
+		return plan, err
 	}
 
-	return plan, err
+	// Check external volumes and plan the creation of missing volumes before deploying services.
+	volumeOps, err := d.planVolumes(serviceSpecs)
+	if err != nil {
+		return plan, err
+	}
+	for _, op := range volumeOps {
+		plan.Operations = append(plan.Operations, op)
+	}
+
+	for _, spec := range serviceSpecs {
+		// TODO: properly handle depends_on conditions in the service deployment plan as the first operation.
+		// Pass the update cluster state with scheduled volumes to the deployment.
+		deployment := deploy.NewDeployment(d.Client, spec, &deploy.RollingStrategy{State: d.state})
+		servicePlan, err := deployment.Plan(ctx)
+		if err != nil {
+			return plan, fmt.Errorf("create deployment plan for service '%s': %w", spec.Name, err)
+		}
+
+		// Skip no-op (up-to-date) service plans.
+		if len(servicePlan.Operations) > 0 {
+			plan.Operations = append(plan.Operations, &servicePlan)
+		}
+	}
+
+	d.plan = &plan
+	return plan, nil
 }
 
 // ServiceSpec returns the service specification for the given compose service that is ready for deployment.
 func (d *Deployment) ServiceSpec(name string) (api.ServiceSpec, error) {
-	service, err := d.Project.GetService(name)
-	if err != nil {
-		return api.ServiceSpec{}, fmt.Errorf("get config for compose service '%s': %w", name, err)
-	}
-
-	spec, err := ServiceSpecFromCompose(name, service)
+	spec, err := ServiceSpecFromCompose(d.Project, name)
 	if err != nil {
 		return spec, fmt.Errorf("convert compose service '%s' to service spec: %w", name, err)
 	}
 
-	// TODO: resolve the image to a digest and supported platforms using an image resolver that broadcasts requests
-	//  to all machines in the cluster. If service.PullPolicy is "missing":
-	//    - Broadcast request if any machine contains a particular image and resolve it to image@digest.
-	//    - If not found, broadcast request to resolve an image using a registry, and resolve it to image@digest.
-	// TODO: configure placement filter based on the supported platforms of the image.
-
-	// TODO: maybe instantiate ImageResolver here based on PullPolicy of each service?
-
 	return spec, nil
 }
 
+// PlanVolumes checks if the external volumes exist and plans the creation of missing volumes.
+func (d *Deployment) planVolumes(serviceSpecs []api.ServiceSpec) ([]*deploy.CreateVolumeOperation, error) {
+	if len(d.Project.Volumes) == 0 {
+		// No volumes to check or create.
+		return nil, nil
+	}
+
+	if err := d.checkExternalVolumesExist(); err != nil {
+		return nil, err
+	}
+
+	// TODO: The scheduler should ideally work with the resolved service specs to correctly identify eligible machines.
+	//  Figure out where the best place to resolve the specs is.
+	volumeScheduler, err := scheduler.NewVolumeScheduler(d.state, serviceSpecs)
+	if err != nil {
+		return nil, fmt.Errorf("init volume scheduler: %w", err)
+	}
+	scheduledVolumes, err := volumeScheduler.Schedule()
+	if err != nil {
+		return nil, fmt.Errorf("schedule volumes: %w", err)
+	}
+
+	// Generate operations to create scheduled missing volumes.
+	var ops []*deploy.CreateVolumeOperation
+	for machineID, volumes := range scheduledVolumes {
+		for _, v := range volumes {
+			machineName := machineID
+			if m, ok := d.state.Machine(machineID); ok {
+				machineName = m.Info.Name
+			}
+
+			ops = append(ops, &deploy.CreateVolumeOperation{
+				MachineID:   machineID,
+				MachineName: machineName,
+				VolumeSpec:  v,
+			})
+		}
+	}
+
+	return ops, nil
+}
+
+// checkExternalVolumesExist checks that all external volumes exist in the cluster.
+func (d *Deployment) checkExternalVolumesExist() error {
+	var externalNames []string
+	for _, v := range d.Project.Volumes {
+		if v.External {
+			externalNames = append(externalNames, v.Name)
+		}
+	}
+
+	var notFound []string
+	for _, name := range externalNames {
+		if !slices.ContainsFunc(d.state.Machines, func(m *scheduler.Machine) bool {
+			return slices.ContainsFunc(m.Volumes, func(vol volume.Volume) bool {
+				return vol.Name == name
+			})
+		}) {
+			notFound = append(notFound, fmt.Sprintf("'%s'", name))
+		}
+	}
+
+	if len(notFound) > 0 {
+		return fmt.Errorf("external volumes not found: %s", strings.Join(notFound, ", "))
+	}
+	return nil
+}
+
 func (d *Deployment) Run(ctx context.Context) error {
 	plan, err := d.Plan(ctx)
 	if err != nil {

pkg/client/compose/project.go

@@ -5,22 +5,31 @@ package compose
 import (
 	"context"
 	"fmt"
+
 	composecli "github.com/compose-spec/compose-go/v2/cli"
 	"github.com/compose-spec/compose-go/v2/types"
 )
 
-func LoadProject(ctx context.Context, paths []string) (*types.Project, error) {
-	options, err := composecli.NewProjectOptions(
-		paths,
+// FakeProjectName is a placeholder name for the project to be able to strip it from the resource names used as prefix.
+const FakeProjectName = "f-a-k-e"
+
+func LoadProject(ctx context.Context, paths []string, opts ...composecli.ProjectOptionsFn) (*types.Project, error) {
+	defaultOpts := []composecli.ProjectOptionsFn{
+		composecli.WithName(FakeProjectName),
 		// First apply os.Environment, always wins.
 		composecli.WithOsEnv,
 		// Read dot env file to populate project environment.
 		composecli.WithDotEnv,
 		// Get compose file path set by COMPOSE_FILE.
 		composecli.WithConfigFileEnv,
-		// If none was selected, get default compose-ports-long.yaml file from current dir or parent folders.
+		// If none was selected, get default Compose file names from current or parent folders.
 		composecli.WithDefaultConfigPath,
 		composecli.WithExtension(PortsExtensionKey, PortsSource{}),
+	}
+
+	options, err := composecli.NewProjectOptions(
+		paths,
+		append(defaultOpts, opts...)...,
 	)
 	if err != nil {
 		return nil, fmt.Errorf("create compose parser options: %w", err)

pkg/client/compose/service.go

@@ -2,11 +2,23 @@ package compose
 
 import (
 	"fmt"
+	"maps"
+	"os"
+	"slices"
+	"strings"
+
 	"github.com/compose-spec/compose-go/v2/types"
+	"github.com/docker/docker/api/types/mount"
+	"github.com/opencontainers/go-digest"
 	"github.com/psviderski/uncloud/pkg/api"
 )
 
-func ServiceSpecFromCompose(name string, service types.ServiceConfig) (api.ServiceSpec, error) {
+func ServiceSpecFromCompose(project *types.Project, serviceName string) (api.ServiceSpec, error) {
+	service, err := project.GetService(serviceName)
+	if err != nil {
+		return api.ServiceSpec{}, fmt.Errorf("get config for compose service '%s': %w", serviceName, err)
+	}
+
 	pullPolicy := ""
 	switch service.PullPolicy {
 	case types.PullPolicyAlways:
@@ -19,35 +31,211 @@ func ServiceSpecFromCompose(name string, service types.ServiceConfig) (api.Servi
 		return api.ServiceSpec{}, fmt.Errorf("unsupported pull policy: '%s'", service.PullPolicy)
 	}
 
+	env := make(map[string]string, len(service.Environment))
+	for k, v := range service.Environment {
+		if v == nil {
+			// nil value means the variable misses a value in the compose file, and it hasn't been resolved
+			// to a variable from the local environment running this code.
+			continue
+		}
+		env[k] = *v
+	}
+
 	spec := api.ServiceSpec{
 		Container: api.ContainerSpec{
 			Command:    service.Command,
+			Entrypoint: service.Entrypoint,
+			Env:        env,
 			Image:      service.Image,
 			Init:       service.Init,
+			Privileged: service.Privileged,
 			PullPolicy: pullPolicy,
-			// TODO: env
-			// TODO: volumes
+			Resources:  resourcesFromCompose(service),
+			User:       service.User,
 		},
-		Name: name,
+		Name: serviceName,
+		Mode: api.ServiceModeReplicated,
+		// TODO: implement and map x-machines to Placement.
 	}
 
 	if ports, ok := service.Extensions[PortsExtensionKey].([]api.PortSpec); ok {
 		spec.Ports = ports
 	}
 
+	// Map LogDriver if specified
+	if service.Logging != nil && service.Logging.Driver != "" {
+		spec.Container.LogDriver = &api.LogDriver{
+			Name:    service.Logging.Driver,
+			Options: service.Logging.Options,
+		}
+	}
+
+	if service.Scale != nil {
+		spec.Replicas = uint(*service.Scale)
+	}
+
 	if service.Deploy != nil {
 		switch service.Deploy.Mode {
 		case "global":
 			spec.Mode = api.ServiceModeGlobal
 		case "", "replicated":
-			spec.Mode = api.ServiceModeReplicated
 			if service.Deploy.Replicas != nil {
 				spec.Replicas = uint(*service.Deploy.Replicas)
 			}
 		default:
-			return spec, fmt.Errorf("unsupported deploy mode: %s", service.Deploy.Mode)
+			return spec, fmt.Errorf("unsupported deploy mode: '%s'", service.Deploy.Mode)
 		}
 	}
 
+	// TODO: can service.tmpfs be handled as tmpfs volume mounts as well?
+	volumeSpecs, volumeMounts, err := volumeSpecsFromCompose(project.Volumes, service.Volumes)
+	if err != nil {
+		return spec, err
+	}
+
+	spec.Volumes = volumeSpecs
+	spec.Container.VolumeMounts = volumeMounts
+
 	return spec, nil
 }
+
+func resourcesFromCompose(service types.ServiceConfig) api.ContainerResources {
+	resources := api.ContainerResources{
+		CPU:               int64(service.CPUS * 1e9),
+		Memory:            int64(service.MemLimit),
+		MemoryReservation: int64(service.MemReservation),
+	}
+
+	// Map resources from deploy section if specified.
+	if service.Deploy != nil {
+		if service.Deploy.Resources.Limits != nil {
+			if service.Deploy.Resources.Limits.NanoCPUs > 0 {
+				// It seems Limits.NanoCPUs is actually not nano CPUs but a CPU fraction.
+				resources.CPU = int64(service.Deploy.Resources.Limits.NanoCPUs * 1e9)
+			}
+			if service.Deploy.Resources.Limits.MemoryBytes > 0 {
+				resources.Memory = int64(service.Deploy.Resources.Limits.MemoryBytes)
+			}
+		}
+		if service.Deploy.Resources.Reservations != nil {
+			if service.Deploy.Resources.Reservations.MemoryBytes > 0 {
+				resources.MemoryReservation = int64(service.Deploy.Resources.Reservations.MemoryBytes)
+			}
+		}
+	}
+
+	return resources
+}
+
+func volumeSpecsFromCompose(
+	volumes types.Volumes, serviceVolumes []types.ServiceVolumeConfig,
+) ([]api.VolumeSpec, []api.VolumeMount, error) {
+	volumeSpecs := make(map[string]api.VolumeSpec)
+	var volumeMounts []api.VolumeMount
+
+	for _, serviceVolume := range serviceVolumes {
+		var volSpec api.VolumeSpec
+
+		switch serviceVolume.Type {
+		case types.VolumeTypeBind:
+			volSpec = bindVolumeSpecFromCompose(serviceVolume)
+		case types.VolumeTypeVolume:
+			volSpec = dockerVolumeSpecFromCompose(serviceVolume, volumes[serviceVolume.Source])
+		case types.VolumeTypeTmpfs:
+			volSpec = tmpfsVolumeSpecFromCompose(serviceVolume)
+		default:
+			return nil, nil, fmt.Errorf("unsupported volume type: '%s'", serviceVolume.Type)
+		}
+
+		if existing, ok := volumeSpecs[volSpec.Name]; ok {
+			if !existing.Equals(volSpec) {
+				return nil, nil, fmt.Errorf("volume '%s' is used multiple times with different options", volSpec.Name)
+			}
+		} else {
+			volumeSpecs[volSpec.Name] = volSpec
+		}
+
+		volumeMounts = append(volumeMounts, api.VolumeMount{
+			VolumeName:    volSpec.Name,
+			ContainerPath: serviceVolume.Target,
+			ReadOnly:      serviceVolume.ReadOnly,
+		})
+	}
+
+	return slices.Collect(maps.Values(volumeSpecs)), volumeMounts, nil
+}
+
+func bindVolumeSpecFromCompose(serviceVolume types.ServiceVolumeConfig) api.VolumeSpec {
+	// compose-go parser deduplicates volumes by the target path so it's safe to use it as the unique name.
+	name := "bind-" + digest.SHA256.FromString(serviceVolume.Target).Encoded()
+	spec := api.VolumeSpec{
+		Name: name,
+		Type: api.VolumeTypeBind,
+		BindOptions: &api.BindOptions{
+			HostPath: serviceVolume.Source,
+		},
+	}
+	if serviceVolume.Bind != nil {
+		spec.BindOptions.CreateHostPath = serviceVolume.Bind.CreateHostPath
+		spec.BindOptions.Propagation = mount.Propagation(serviceVolume.Bind.Propagation)
+		spec.BindOptions.Recursive = serviceVolume.Bind.Recursive
+	}
+
+	return spec
+}
+
+func dockerVolumeSpecFromCompose(serviceVolume types.ServiceVolumeConfig, volume types.VolumeConfig) api.VolumeSpec {
+	spec := api.VolumeSpec{
+		Name: serviceVolume.Source,
+		Type: api.VolumeTypeVolume,
+		VolumeOptions: &api.VolumeOptions{
+			Name: strings.TrimPrefix(volume.Name, FakeProjectName+"_"),
+		},
+	}
+
+	if serviceVolume.Volume != nil {
+		spec.VolumeOptions.NoCopy = serviceVolume.Volume.NoCopy
+		spec.VolumeOptions.SubPath = serviceVolume.Volume.Subpath
+	}
+
+	if !volume.External {
+		if volume.Driver != "" {
+			spec.VolumeOptions.Driver = &mount.Driver{
+				Name:    volume.Driver,
+				Options: volume.DriverOpts,
+			}
+		}
+
+		labels := mergeLabels(volume.Labels, volume.CustomLabels)
+		if len(labels) > 0 {
+			spec.VolumeOptions.Labels = labels
+		}
+	}
+
+	return spec
+}
+
+func mergeLabels(labels ...types.Labels) types.Labels {
+	merged := types.Labels{}
+	for _, l := range labels {
+		for k, v := range l {
+			merged[k] = v
+		}
+	}
+	return merged
+}
+
+func tmpfsVolumeSpecFromCompose(serviceVolume types.ServiceVolumeConfig) api.VolumeSpec {
+	// compose-go parser deduplicates volumes by the target path so it's safe to use it as the unique name.
+	name := "tmpfs-" + digest.SHA256.FromString(serviceVolume.Target).Encoded()
+	spec := api.VolumeSpec{
+		Name: name,
+		Type: api.VolumeTypeTmpfs,
+		TmpfsOptions: &mount.TmpfsOptions{
+			SizeBytes: int64(serviceVolume.Tmpfs.Size),
+			Mode:      os.FileMode(serviceVolume.Tmpfs.Mode),
+		},
+	}
+
+	return spec
+}

pkg/client/compose/service_test.go

@@ -0,0 +1,238 @@
+package compose
+
+import (
+	"context"
+	"path/filepath"
+	"slices"
+	"strings"
+	"testing"
+
+	"github.com/compose-spec/compose-go/v2/cli"
+	"github.com/compose-spec/compose-go/v2/types"
+	"github.com/docker/docker/api/types/mount"
+	"github.com/docker/go-units"
+	"github.com/google/go-cmp/cmp"
+	"github.com/google/go-cmp/cmp/cmpopts"
+	"github.com/psviderski/uncloud/pkg/api"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+// loadProjectFromFile loads a compose project from a YAML file
+func loadProjectFromFile(t *testing.T, filename string) *types.Project {
+	t.Helper()
+	ctx := context.Background()
+	path := filepath.Join("testdata", filename)
+
+	options, err := cli.NewProjectOptions(
+		[]string{path},
+		cli.WithName(FakeProjectName),
+		cli.WithOsEnv,
+		cli.WithDotEnv,
+	)
+	require.NoError(t, err)
+
+	project, err := options.LoadProject(ctx)
+	require.NoError(t, err)
+
+	return project
+}
+
+func TestServiceSpecFromCompose(t *testing.T) {
+	t.Parallel()
+
+	initTrue := true
+
+	tests := []struct {
+		name     string
+		filename string
+		want     map[string]api.ServiceSpec
+	}{
+		{
+			name:     "minimal",
+			filename: "compose-minimal.yaml",
+			want: map[string]api.ServiceSpec{
+				"test": {
+					Name: "test",
+					Mode: api.ServiceModeReplicated,
+					Container: api.ContainerSpec{
+						Image:      "nginx:latest",
+						PullPolicy: api.PullPolicyMissing,
+					},
+				},
+			},
+		},
+		{
+			name:     "deploy",
+			filename: "compose-deploy.yaml",
+			want: map[string]api.ServiceSpec{
+				"no-deploy": {
+					Name: "no-deploy",
+					Mode: api.ServiceModeReplicated,
+					Container: api.ContainerSpec{
+						Image:      "nginx:latest",
+						PullPolicy: api.PullPolicyMissing,
+						Resources: api.ContainerResources{
+							CPU:               1.5 * api.Core,
+							Memory:            100 * units.MiB,
+							MemoryReservation: 50 * units.MiB,
+						},
+					},
+					Replicas: 3,
+				},
+				"deploy": {
+					Name: "deploy",
+					Mode: api.ServiceModeReplicated,
+					Container: api.ContainerSpec{
+						Image:      "nginx:latest",
+						PullPolicy: api.PullPolicyMissing,
+						Resources: api.ContainerResources{
+							CPU:               1.5 * api.Core,
+							Memory:            100 * units.MiB,
+							MemoryReservation: 50 * units.MiB,
+						},
+					},
+					Replicas: 3,
+				},
+				"both": {
+					Name: "both",
+					Mode: api.ServiceModeReplicated,
+					Container: api.ContainerSpec{
+						Image:      "nginx:latest",
+						PullPolicy: api.PullPolicyMissing,
+						Resources: api.ContainerResources{
+							CPU:               2 * api.Core,
+							Memory:            100 * units.MiB,
+							MemoryReservation: 50 * units.MiB,
+						},
+					},
+					Replicas: 3,
+				},
+			},
+		},
+		{
+			name:     "full-spec",
+			filename: "compose-full-spec.yaml",
+			want: map[string]api.ServiceSpec{
+				"test": {
+					Name: "test",
+					Mode: api.ServiceModeReplicated,
+					Container: api.ContainerSpec{
+						Command:    []string{"nginx", "updated", "command"},
+						Entrypoint: []string{"/updated-docker-entrypoint.sh"},
+						Env: map[string]string{
+							"BOOL":  "true",
+							"EMPTY": "",
+							"VAR":   "value",
+						},
+						Image: "nginx:latest",
+						Init:  &initTrue,
+						LogDriver: &api.LogDriver{
+							Name: "json-file",
+							Options: map[string]string{
+								"max-size": "10m",
+								"max-file": "3",
+							},
+						},
+						Privileged: true,
+						PullPolicy: api.PullPolicyAlways,
+						Resources: api.ContainerResources{
+							CPU:               0.5 * api.Core,
+							Memory:            100 * units.MiB,
+							MemoryReservation: 50 * units.MiB,
+						},
+						User: "nginx:nginx",
+						VolumeMounts: []api.VolumeMount{
+							{
+								VolumeName:    "bind-bb6aed1683cea1e0a1ae5cd227aacd0734f2f87f7a78fcf1baeff978ce300b90",
+								ContainerPath: "/host/etc/passwd",
+								ReadOnly:      true,
+							},
+							{
+								VolumeName:    "data1",
+								ContainerPath: "/data1",
+							},
+							{
+								VolumeName:    "data2-alias",
+								ContainerPath: "/data2/long/syntax",
+							},
+							{
+								VolumeName:    "data-external",
+								ContainerPath: "/external",
+								ReadOnly:      true,
+							},
+							{
+								VolumeName:    "tmpfs-efa57ba8b6a1779674ac438de3af8729e2d55900b79eb929431cf9c5b0179542",
+								ContainerPath: "/tmpfs",
+							},
+						},
+					},
+					Replicas: 3,
+					Volumes: []api.VolumeSpec{
+						{
+							Name: "bind-bb6aed1683cea1e0a1ae5cd227aacd0734f2f87f7a78fcf1baeff978ce300b90",
+							Type: api.VolumeTypeBind,
+							BindOptions: &api.BindOptions{
+								HostPath:       "/etc/passwd",
+								CreateHostPath: true,
+							},
+						},
+						{
+							Name: "data-external",
+							Type: api.VolumeTypeVolume,
+							VolumeOptions: &api.VolumeOptions{
+								Name: "data-external",
+							},
+						},
+						{
+							Name: "data1",
+							Type: api.VolumeTypeVolume,
+							VolumeOptions: &api.VolumeOptions{
+								Name: "data1",
+							},
+						},
+						{
+							Name: "data2-alias",
+							Type: api.VolumeTypeVolume,
+							VolumeOptions: &api.VolumeOptions{
+								Name: "data2",
+								Driver: &mount.Driver{
+									Name: "local",
+								},
+							},
+						},
+						{
+							Name: "tmpfs-efa57ba8b6a1779674ac438de3af8729e2d55900b79eb929431cf9c5b0179542",
+							Type: api.VolumeTypeTmpfs,
+							TmpfsOptions: &mount.TmpfsOptions{
+								SizeBytes: 10 * units.MiB,
+							},
+						},
+					},
+				},
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		ctx := context.Background()
+
+		t.Run(tt.name, func(t *testing.T) {
+			project, err := LoadProject(ctx, []string{filepath.Join("testdata", tt.filename)})
+			require.NoError(t, err)
+
+			for name, expectedSpec := range tt.want {
+				spec, err := ServiceSpecFromCompose(project, name)
+				require.NoError(t, err)
+
+				// Due to the use of a map the order of volumes is non-deterministic.
+				slices.SortFunc(spec.Volumes, func(a, b api.VolumeSpec) int {
+					return strings.Compare(a.Name, b.Name)
+				})
+
+				assert.True(t, cmp.Equal(spec, expectedSpec, cmpopts.EquateEmpty()),
+					cmp.Diff(spec, expectedSpec, cmpopts.EquateEmpty()))
+			}
+		})
+	}
+}

pkg/client/compose/testdata/compose-deploy.yaml

@@ -0,0 +1,33 @@
+services:
+  no-deploy:
+    image: nginx:latest
+    cpus: 1.5
+    mem_limit: 100M
+    mem_reservation: 50M
+    scale: 3
+
+  deploy:
+    image: nginx:latest
+    deploy:
+      replicas: 3
+      resources:
+        limits:
+          cpus: 1.5
+          memory: 100M
+        reservations:
+          memory: 50M
+
+  both:
+    image: nginx:latest
+    cpus: 2
+    mem_limit: 102400K
+    mem_reservation: 52428800
+    scale: 3
+    deploy:
+      replicas: 3
+      resources:
+        limits:
+          cpus: 2.0
+          memory: 100M
+        reservations:
+          memory: 50M

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

@@ -0,0 +1,41 @@
+services:
+  test:
+    command: ["nginx", "updated", "command"]
+    cpus: 0.5
+    entrypoint: ["/updated-docker-entrypoint.sh"]
+    environment:
+      BOOL: "true"
+      EMPTY: ""
+      VAR: value
+    image: nginx:latest
+    init: true
+    logging:
+      driver: json-file
+      options:
+        max-size: 10m
+        max-file: 3
+    mem_limit: 100M
+    mem_reservation: 50M
+    privileged: true
+    pull_policy: always
+    scale: 3
+    user: nginx:nginx
+    volumes:
+      - /etc/passwd:/host/etc/passwd:ro
+      - data1:/data1
+      - type: volume
+        source: data2-alias
+        target: /data2/long/syntax
+      - data-external:/external:ro
+      - type: tmpfs
+        target: /tmpfs
+        tmpfs:
+          size: 10485760
+
+volumes:
+  data1:
+  data2-alias:
+    name: data2
+    driver: local
+  data-external:
+    external: true

pkg/client/compose/testdata/compose-minimal.yaml

@@ -0,0 +1,3 @@
+services:
+  test:
+    image: nginx:latest

pkg/client/container.go

@@ -61,8 +61,8 @@ func (cli *Client) CreateContainer(
 			return resp, fmt.Errorf("unsupported pull policy: '%s'", spec.Container.PullPolicy)
 		}
 
-		// Not found error is expected if the image is missing.
-		if !dockerclient.IsErrNotFound(err) {
+		// NotFound (No such image) error is expected if the image is missing.
+		if !dockerclient.IsErrNotFound(err) || !strings.Contains(err.Error(), "No such image") {
 			return resp, err
 		}
 

pkg/client/deploy/container.go

@@ -1,6 +1,11 @@
 package deploy
 
 import (
+	"reflect"
+	"sort"
+
+	"github.com/google/go-cmp/cmp"
+	"github.com/google/go-cmp/cmp/cmpopts"
 	"github.com/psviderski/uncloud/pkg/api"
 )
 
@@ -14,12 +19,6 @@ func EvalContainerSpecChange(current api.ServiceSpec, new api.ServiceSpec) Conta
 	current = current.SetDefaults()
 	new = new.SetDefaults()
 
-	// Pull policy doesn't affect the container configuration.
-	new.Container.PullPolicy = current.Container.PullPolicy
-	if !current.Container.Equals(new.Container) {
-		return ContainerNeedsRecreate
-	}
-
 	if current.Mode != new.Mode {
 		return ContainerNeedsRecreate
 	}
@@ -27,13 +26,56 @@ func EvalContainerSpecChange(current api.ServiceSpec, new api.ServiceSpec) Conta
 		return ContainerNeedsRecreate
 	}
 
-	// TODO: compare mutable properties such as memory or CPU limits when they are implemented.
+	// Pull policy doesn't affect the container configuration.
+	new.Container.PullPolicy = current.Container.PullPolicy
 
-	// TODO: change ports check to ContainerNeedsUpdate when ingress ports are stored only the machine DB instead
+	// Save mutable container resources that can be updated without recreation.
+	newResources := new.Container.Resources
+	// Temporarily set mutable container resources to current values to check if other properties changed.
+	new.Container.Resources = current.Container.Resources
+
+	// Check if immutable container properties changed.
+	if !current.Container.Equals(new.Container) {
+		return ContainerNeedsRecreate
+	}
+
+	if !cmp.Equal(current.Placement, new.Placement, cmpopts.EquateEmpty()) {
+		// TODO: this could be just an in-place spec update when available.
+		return ContainerNeedsRecreate
+	}
+
+	// TODO: change ports check to ContainerNeedsUpdate when ingress ports are stored only in the machine DB instead
 	//  of as labels ans synced to the cluster store. Host ports changes should be handled as ContainerNeedsRecreate.
 	if !api.PortsEqual(current.Ports, new.Ports) {
 		return ContainerNeedsRecreate
 	}
 
+	// Compare volumes.
+	if len(current.Volumes) != len(new.Volumes) {
+		return ContainerNeedsRecreate
+	}
+	sortVolumes(current.Volumes)
+	sortVolumes(new.Volumes)
+	for i := range current.Volumes {
+		if !current.Volumes[i].Equals(new.Volumes[i]) {
+			// TODO: require only spec update for cases (see TODOs in tests):
+			//  * bind volumes with different CreateHostPath
+			//  * changed reference name in spec but preserved original volume name
+			// TODO: should defined but not used (no corresponding mounts) volumes be simply ignored?
+			return ContainerNeedsRecreate
+		}
+	}
+
+	// Check if any mutable properties changed.
+	if !reflect.DeepEqual(current.Container.Resources, newResources) {
+		return ContainerNeedsUpdate
+	}
+
 	return ContainerUpToDate
 }
+
+func sortVolumes(volumes []api.VolumeSpec) {
+	sort.Slice(volumes, func(i, j int) bool {
+		return volumes[i].Name < volumes[j].Name
+	})
+}

pkg/client/deploy/deploy.go

@@ -4,7 +4,7 @@ import (
 	"context"
 	"errors"
 	"fmt"
-	"github.com/psviderski/uncloud/internal/machine/api/pb"
+
 	"github.com/psviderski/uncloud/pkg/api"
 )
 
@@ -14,6 +14,7 @@ type Client interface {
 	api.ImageClient
 	api.MachineClient
 	api.ServiceClient
+	api.VolumeClient
 }
 
 // Deployment manages the process of creating or updating a service to match a desired state.
@@ -32,12 +33,6 @@ type Plan struct {
 	SequenceOperation
 }
 
-// MachineFilter determines which machines participate in a deployment operation by returning true for
-// machines that should be included.
-type MachineFilter func(m *pb.MachineInfo) bool
-
-var ErrNoMatchingMachines = errors.New("no machines match the filter")
-
 // NewDeployment creates a new deployment for the given service specification.
 // If strategy is nil, a default RollingStrategy will be used.
 func NewDeployment(cli Client, spec api.ServiceSpec, strategy Strategy) *Deployment {
@@ -68,15 +63,9 @@ func (d *Deployment) Plan(ctx context.Context) (Plan, error) {
 	if err != nil && !errors.Is(err, api.ErrNotFound) {
 		return Plan{}, fmt.Errorf("get cluster domain: %w", err)
 	}
-	// TODO: enable image resolver when it's ready to pin digests and look up existing images.
-	//imageResolver := &ImageDigestResolver{
-	//	Ctx:    ctx,
-	//	Client: d.cli,
-	//}
 	specResolver := &ServiceSpecResolver{
 		// If the domain is not found (not reserved), an empty domain is used for the resolver.
 		ClusterDomain: clusterDomain,
-		//ImageResolver: imageResolver,
 	}
 
 	resolvedSpec, err := specResolver.Resolve(d.Spec)

pkg/client/deploy/operation.go

@@ -3,9 +3,11 @@ package deploy
 import (
 	"context"
 	"fmt"
-	"github.com/docker/docker/api/types/container"
-	"github.com/psviderski/uncloud/pkg/api"
 	"strings"
+
+	"github.com/docker/docker/api/types/container"
+	"github.com/docker/docker/api/types/volume"
+	"github.com/psviderski/uncloud/pkg/api"
 )
 
 // Operation represents a single atomic operation in a deployment process.
@@ -16,6 +18,7 @@ type Operation interface {
 	//  can be provided. But in reality, the operation is tightly coupled with the client that was used to create it.
 	Execute(ctx context.Context, cli Client) error
 	// Format returns a human-readable representation of the operation.
+	// TODO: get rid of the resolver and assign the required names for formatting in the operation itself.
 	Format(resolver NameResolver) string
 	String() string
 }
@@ -109,6 +112,46 @@ func (o *RemoveContainerOperation) String() string {
 		o.ServiceID, o.ContainerID, o.MachineID)
 }
 
+// CreateVolumeOperation creates a volume on a specific machine.
+type CreateVolumeOperation struct {
+	VolumeSpec api.VolumeSpec
+	MachineID  string
+	// MachineName is used for formatting the operation output only.
+	MachineName string
+}
+
+func (o *CreateVolumeOperation) Execute(ctx context.Context, cli Client) error {
+	if o.VolumeSpec.Type != api.VolumeTypeVolume {
+		return fmt.Errorf("invalid volume type: '%s', expected '%s'", o.VolumeSpec.Type, api.VolumeTypeVolume)
+	}
+
+	opts := volume.CreateOptions{
+		Name: o.VolumeSpec.DockerVolumeName(),
+	}
+	if o.VolumeSpec.VolumeOptions != nil {
+		if o.VolumeSpec.VolumeOptions.Driver != nil {
+			opts.Driver = o.VolumeSpec.VolumeOptions.Driver.Name
+			opts.DriverOpts = o.VolumeSpec.VolumeOptions.Driver.Options
+		}
+		opts.Labels = o.VolumeSpec.VolumeOptions.Labels
+	}
+
+	if _, err := cli.CreateVolume(ctx, o.MachineID, opts); err != nil {
+		return fmt.Errorf("create volume: %w", err)
+	}
+
+	return nil
+}
+
+func (o *CreateVolumeOperation) Format(_ NameResolver) string {
+	return fmt.Sprintf("%s: Create volume [name=%s]", o.MachineName, o.VolumeSpec.DockerVolumeName())
+}
+
+func (o *CreateVolumeOperation) String() string {
+	return fmt.Sprintf("CreateVolumeOperation[volume=%s, machine_id=%s]",
+		o.VolumeSpec.DockerVolumeName(), o.MachineID)
+}
+
 // SequenceOperation is a composite operation that executes a sequence of operations in order.
 type SequenceOperation struct {
 	Operations []Operation

pkg/client/deploy/resolver.go

@@ -4,14 +4,15 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"strings"
+	"time"
+
 	"github.com/distribution/reference"
 	"github.com/docker/docker/api/types"
 	"github.com/opencontainers/go-digest"
 	"github.com/psviderski/uncloud/internal/secret"
 	"github.com/psviderski/uncloud/pkg/api"
 	"google.golang.org/grpc/codes"
-	"strings"
-	"time"
 )
 
 // ServiceSpecResolver transforms user-provided service specs into deployment-ready form.
@@ -66,25 +67,9 @@ func (r *ServiceSpecResolver) resolveServiceName(spec *api.ServiceSpec) error {
 		return nil
 	}
 
-	// Generate a random service name from the image when not provided.
-	img, err := reference.ParseDockerRef(spec.Container.Image)
-	if err != nil {
-		return fmt.Errorf("invalid image: %w", err)
-	}
-	// Get the image name without the repository and tag/digest parts.
-	imageName := reference.FamiliarName(img)
-	// Get the last part of the image name (path), e.g. "nginx" from "bitnami/nginx".
-	if i := strings.LastIndex(imageName, "/"); i != -1 {
-		imageName = imageName[i+1:]
-	}
-	// Append a random suffix to the image name to generate an optimistically unique service name.
-	suffix, err := secret.RandomAlphaNumeric(4)
-	if err != nil {
-		return fmt.Errorf("generate random suffix: %w", err)
-	}
-	spec.Name = fmt.Sprintf("%s-%s", imageName, suffix)
-
-	return nil
+	var err error
+	spec.Name, err = GenerateServiceName(spec.Container.Image)
+	return err
 }
 
 // expandIngressPorts processes HTTP(S) ingress ports in a service spec by:
@@ -141,11 +126,32 @@ func (r *ServiceSpecResolver) resolveImageDigest(spec *api.ServiceSpec) error {
 	return nil
 }
 
+func GenerateServiceName(image string) (string, error) {
+	img, err := reference.ParseDockerRef(image)
+	if err != nil {
+		return "", fmt.Errorf("invalid image '%s': %w", image, err)
+	}
+	// Get the image name without the repository and tag/digest parts.
+	imageName := reference.FamiliarName(img)
+	// Get the last part of the image name (path), e.g. "nginx" from "bitnami/nginx".
+	if i := strings.LastIndex(imageName, "/"); i != -1 {
+		imageName = imageName[i+1:]
+	}
+	// Append a random suffix to the image name to generate an optimistically unique service name.
+	suffix, err := secret.RandomAlphaNumeric(4)
+	if err != nil {
+		return "", fmt.Errorf("generate random suffix: %w", err)
+	}
+	return fmt.Sprintf("%s-%s", imageName, suffix), nil
+}
+
 type ImageResolverClient interface {
 	api.ImageClient
 	api.MachineClient
 }
 
+// TODO(lhf): as of April 2025, ImageDigestResolver is not used in the codebase and considered more harmful
+// than helpful. It's safe to remove it.
 type ImageDigestResolver struct {
 	Ctx    context.Context
 	Client ImageResolverClient
@@ -187,7 +193,7 @@ func (r *ImageDigestResolver) Resolve(image, policy string) (string, error) {
 // resolveAlways resolves the image to the image with the digest by querying the registry from all machines.
 func (r *ImageDigestResolver) resolveAlways(image string) (string, error) {
 	// TODO: broadcast to a subset of machines in large clusters to avoid being rate-limited by the registry.
-	ctx, err := api.ProxyMachinesContext(r.Ctx, r.Client, nil)
+	ctx, _, err := api.ProxyMachinesContext(r.Ctx, r.Client, nil)
 	if err != nil {
 		return "", fmt.Errorf("create request context to broadcast to all machines: %w", err)
 	}
@@ -215,7 +221,7 @@ func (r *ImageDigestResolver) resolveAlways(image string) (string, error) {
 }
 
 func (r *ImageDigestResolver) resolveMissing(image string) (string, error) {
-	ctx, err := api.ProxyMachinesContext(r.Ctx, r.Client, nil)
+	ctx, _, err := api.ProxyMachinesContext(r.Ctx, r.Client, nil)
 	if err != nil {
 		return "", fmt.Errorf("create request context to broadcast to all machines: %w", err)
 	}

pkg/client/deploy/scheduler/constraint.go

@@ -0,0 +1,140 @@
+package scheduler
+
+import (
+	"reflect"
+	"slices"
+	"strings"
+
+	"github.com/docker/docker/api/types/mount"
+	"github.com/docker/docker/api/types/volume"
+	"github.com/psviderski/uncloud/pkg/api"
+)
+
+// Constraint is the base interface for all scheduling constraints.
+type Constraint interface {
+	// Evaluate determines if a machine satisfies the constraint.
+	Evaluate(machine *Machine) bool
+
+	// Description returns a human-readable description of the constraint.
+	Description() string
+}
+
+// constraintsFromSpec derives scheduling constraints from the service specification.
+func constraintsFromSpec(spec api.ServiceSpec) []Constraint {
+	var constraints []Constraint
+
+	// TODO: add placement constraint based on the supported platforms of the image.
+	// TODO: add placement constraint to limit machines with the image if pull policy is never.
+
+	if len(spec.Placement.Machines) > 0 {
+		constraints = append(constraints, &PlacementConstraint{
+			Machines: spec.Placement.Machines,
+		})
+	}
+
+	// Add a VolumesConstraint for named Docker volumes that are mounted in the container.
+	var volumes []api.VolumeSpec
+	for _, m := range spec.Container.VolumeMounts {
+		if v, ok := spec.Volume(m.VolumeName); ok && v.Type == api.VolumeTypeVolume {
+			volumes = append(volumes, v)
+		}
+	}
+	if len(volumes) > 0 {
+		constraints = append(constraints, &VolumesConstraint{
+			Volumes: volumes,
+		})
+	}
+
+	return constraints
+}
+
+type PlacementConstraint struct {
+	// Machines is a list of machine names or IDs where service containers are allowed to be deployed.
+	// If empty, containers can be deployed to any available machine in the cluster.
+	Machines []string
+}
+
+func (c *PlacementConstraint) Evaluate(machine *Machine) bool {
+	for _, nameOrID := range c.Machines {
+		if machine.Info.Id == nameOrID || machine.Info.Name == nameOrID {
+			return true
+		}
+	}
+	return false
+}
+
+func (c *PlacementConstraint) Description() string {
+	slices.Sort(c.Machines)
+	return "Placement constraint by machines: " + strings.Join(c.Machines, ", ")
+}
+
+// VolumesConstraint restricts container placement to machines that have the required named Docker volumes.
+type VolumesConstraint struct {
+	// Volumes is a list of named Docker volumes of type api.VolumeTypeVolume that must exist on the machine.
+	Volumes []api.VolumeSpec
+}
+
+// Evaluate determines if a machine has all the required volumes.
+// Returns true if all required volumes exist or scheduled on the machine or if there are no required volumes.
+func (c *VolumesConstraint) Evaluate(machine *Machine) bool {
+	if len(c.Volumes) == 0 {
+		return true
+	}
+
+	for _, v := range c.Volumes {
+		if v.Type != api.VolumeTypeVolume {
+			continue
+		}
+
+		// Check if the required volume already exists on the machine.
+		if slices.ContainsFunc(machine.Volumes, func(vol volume.Volume) bool {
+			if v.DockerVolumeName() == vol.Name {
+				return v.MatchesDockerVolume(vol)
+			}
+			return false
+		}) {
+			continue
+		}
+
+		// Check if the required volume has been scheduled on the machine. The driver names and options must match.
+		if !slices.ContainsFunc(machine.ScheduledVolumes, func(scheduled api.VolumeSpec) bool {
+			if v.DockerVolumeName() != scheduled.DockerVolumeName() {
+				return false
+			}
+
+			// The volume spec with an empty driver can mount the volume that matches the name no matter the driver.
+			if v.VolumeOptions.Driver == nil {
+				return true
+			}
+
+			// If the driver is specified in the spec, the spec's driver and options must match the volume's driver
+			// and options to successfully mount the volume.
+			scheduled = scheduled.SetDefaults()
+			scheduledDriver := scheduled.VolumeOptions.Driver
+			if scheduledDriver == nil {
+				scheduledDriver = &mount.Driver{Name: api.VolumeDriverLocal}
+			}
+			return reflect.DeepEqual(v.VolumeOptions.Driver, scheduledDriver)
+		}) {
+			return false
+		}
+	}
+
+	return true
+}
+
+func (c *VolumesConstraint) Description() string {
+	volumeNames := make([]string, 0, len(c.Volumes))
+	for _, v := range c.Volumes {
+		if v.Type == api.VolumeTypeVolume {
+			volumeNames = append(volumeNames, v.DockerVolumeName())
+		}
+	}
+	slices.Sort(volumeNames)
+
+	if len(volumeNames) == 0 {
+		return "No volumes constraint"
+	}
+
+	return "Volumes: " + strings.Join(volumeNames, ", ")
+}

pkg/client/deploy/scheduler/service.go

@@ -0,0 +1,54 @@
+package scheduler
+
+import (
+	"errors"
+
+	"github.com/psviderski/uncloud/internal/machine/api/pb"
+	"github.com/psviderski/uncloud/pkg/api"
+)
+
+type ServiceScheduler struct {
+	state       *ClusterState
+	spec        api.ServiceSpec
+	constraints []Constraint
+}
+
+// NewServiceScheduler creates a new ServiceScheduler with the given cluster state and service specification.
+func NewServiceScheduler(state *ClusterState, spec api.ServiceSpec) *ServiceScheduler {
+	constraints := constraintsFromSpec(spec)
+
+	return &ServiceScheduler{
+		state:       state,
+		spec:        spec,
+		constraints: constraints,
+	}
+}
+
+// EligibleMachines returns a list of machines that satisfy all constraints for the next scheduled container.
+func (s *ServiceScheduler) EligibleMachines() ([]*Machine, error) {
+	var available []*Machine
+	for _, machine := range s.state.Machines {
+		if s.evaluateConstraints(machine) {
+			available = append(available, machine)
+		}
+	}
+	if len(available) == 0 {
+		return nil, errors.New("no machines available that satisfy all constraints")
+	}
+	return available, nil
+}
+
+func (s *ServiceScheduler) evaluateConstraints(machine *Machine) bool {
+	for _, c := range s.constraints {
+		if !c.Evaluate(machine) {
+			return false
+		}
+	}
+	return true
+}
+
+func (s *ServiceScheduler) ScheduleContainer() ([]*pb.MachineInfo, error) {
+	// TODO: organise machines in a heap and supply a sort function from the strategy. Each scheduled container
+	//  should update the machine and reorder it in the heap.
+	return nil, errors.New("not implemented")
+}

pkg/client/deploy/scheduler/state.go

@@ -0,0 +1,69 @@
+package scheduler
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/docker/docker/api/types/volume"
+	"github.com/psviderski/uncloud/internal/machine/api/pb"
+	"github.com/psviderski/uncloud/pkg/api"
+)
+
+// ClusterState represents the current and planned state of machines and their resources in the cluster.
+type ClusterState struct {
+	Machines []*Machine
+}
+
+type Machine struct {
+	Info             *pb.MachineInfo
+	Volumes          []volume.Volume
+	ScheduledVolumes []api.VolumeSpec
+}
+
+type Client interface {
+	api.MachineClient
+	api.VolumeClient
+}
+
+// InspectClusterState creates a new cluster state by inspecting the machines using the cluster client.
+func InspectClusterState(ctx context.Context, cli Client) (*ClusterState, error) {
+	// TODO: refactor to get all the details in one broadcast call to machine API,
+	//  e.g. InspectMachine with include options.
+	machineMembers, err := cli.ListMachines(ctx, &api.MachineFilter{Available: true})
+	if err != nil {
+		return nil, fmt.Errorf("list machines: %w", err)
+	}
+	volumes, err := cli.ListVolumes(ctx, nil)
+	if err != nil {
+		return nil, fmt.Errorf("list volumes: %w", err)
+	}
+
+	var machines []*Machine
+	for _, m := range machineMembers {
+		machine := &Machine{
+			Info: m.Machine,
+		}
+
+		for _, v := range volumes {
+			if v.MachineID == m.Machine.Id {
+				machine.Volumes = append(machine.Volumes, v.Volume)
+			}
+		}
+
+		machines = append(machines, machine)
+	}
+
+	return &ClusterState{
+		Machines: machines,
+	}, nil
+}
+
+// Machine returns the machine with the given name or ID from the cluster state.
+func (s *ClusterState) Machine(nameOrID string) (*Machine, bool) {
+	for _, m := range s.Machines {
+		if m.Info.Id == nameOrID || m.Info.Name == nameOrID {
+			return m, true
+		}
+	}
+	return nil, false
+}

pkg/client/deploy/scheduler/volume.go

@@ -0,0 +1,296 @@
+package scheduler
+
+import (
+	"fmt"
+	"slices"
+	"strings"
+
+	mapset "github.com/deckarep/golang-set/v2"
+	"github.com/psviderski/uncloud/pkg/api"
+)
+
+// VolumeScheduler determines what missing volumes should be created and where for a multi-service deployment.
+// It satisfies the following constraints:
+//   - Services that share a volume must be placed on the same machine where the volume is located.
+//     If the volume is located on multiple machines, services can be placed on any of them.
+//   - Services must respect their individual placement constraints.
+//   - If a volume already exists on a machine, it must be used instead of creating a new one.
+//   - A missing volume must only be created on one machine.
+type VolumeScheduler struct {
+	// state is the current state of machines and their resources in the cluster.
+	state *ClusterState
+	// serviceSpecs is a list of service specifications included in the deployment.
+	serviceSpecs []api.ServiceSpec
+	// volumeSpecs is a map of volume names to their specifications from the service specs in a canonical form.
+	volumeSpecs map[string]api.VolumeSpec
+	// volumeServices is a map of volume names to the list of service names that use the volume.
+	// TODO: not all service spec may contain the service name, so use a slice of int indexes instead of names.
+	volumeServices map[string][]string
+	// existingVolumeMachines is a map of volume names to the set of machine IDs where those volumes are located.
+	// Contains only volumes that are used by at least one service in serviceSpecs.
+	existingVolumeMachines map[string]mapset.Set[string]
+}
+
+// NewVolumeScheduler creates a new VolumeScheduler with the given cluster state and service specifications.
+func NewVolumeScheduler(state *ClusterState, specs []api.ServiceSpec) (*VolumeScheduler, error) {
+	var specsWithVolumes []api.ServiceSpec
+	// Docker volume name -> VolumeSpec.
+	volumeSpecs := make(map[string]api.VolumeSpec)
+	// Volume name -> list of service names that use the volume.
+	volumeServices := make(map[string][]string)
+	// Volume name -> set of machine IDs where the volume is located.
+	existingVolumeMachines := make(map[string]mapset.Set[string])
+
+	// Validate all service names are unique to avoid scheduling conflicts.
+	serviceNames := make(map[string]struct{}, len(specs))
+	for _, spec := range specs {
+		if err := spec.Validate(); err != nil {
+			return nil, fmt.Errorf("invalid service spec: %w", err)
+		}
+
+		if _, exists := serviceNames[spec.Name]; exists {
+			return nil, fmt.Errorf("duplicate service name: '%s'", spec.Name)
+		}
+		serviceNames[spec.Name] = struct{}{}
+
+		mountedVolumes := spec.MountedDockerVolumes()
+		if len(mountedVolumes) == 0 {
+			continue
+		}
+		specsWithVolumes = append(specsWithVolumes, spec)
+
+		for _, v := range mountedVolumes {
+			v = v.SetDefaults()
+			// Reset any aliases in a service spec to the actual Docker volume name.
+			v.Name = v.DockerVolumeName()
+
+			if seenVolume, ok := volumeSpecs[v.Name]; ok {
+				if !seenVolume.Equals(v) {
+					return nil, fmt.Errorf("volume '%s' is defined multiple times with different options", v.Name)
+				}
+			} else {
+				volumeSpecs[v.Name] = v
+			}
+
+			volumeServices[v.Name] = append(volumeServices[v.Name], spec.Name)
+		}
+	}
+
+	// Validate the configurations of existing volumes on machines don't conflict with the volume specs, for example,
+	// a volume and a spec with the same name don't have different drivers.
+	for _, machine := range state.Machines {
+		for _, vol := range machine.Volumes {
+			if spec, ok := volumeSpecs[vol.Name]; ok {
+				if !spec.MatchesDockerVolume(vol) {
+					return nil, fmt.Errorf("volume '%s' specification does not match the existing volume "+
+						"on machine '%s'", vol.Name, machine.Info.Name)
+				}
+
+				if _, setInitialised := existingVolumeMachines[vol.Name]; !setInitialised {
+					existingVolumeMachines[vol.Name] = mapset.NewSet[string]()
+				}
+				existingVolumeMachines[vol.Name].Add(machine.Info.Id)
+			}
+		}
+	}
+
+	return &VolumeScheduler{
+		state:                  state,
+		serviceSpecs:           specsWithVolumes,
+		volumeSpecs:            volumeSpecs,
+		volumeServices:         volumeServices,
+		existingVolumeMachines: existingVolumeMachines,
+	}, nil
+}
+
+// Schedule determines what missing volumes should be created and where for services in the multi-service deployment.
+// It returns a map of machine IDs to a list of api.VolumeSpec that should be created on that machine,
+// or an error if services can't be scheduled due to scheduling constraints.
+func (s *VolumeScheduler) Schedule() (map[string][]api.VolumeSpec, error) {
+	if len(s.serviceSpecs) == 0 {
+		// No services with volume mounts, nothing to schedule.
+		return nil, nil
+	}
+
+	// Service name -> set of machine IDs where the service can be scheduled.
+	serviceEligibleMachines := make(map[string]mapset.Set[string])
+	// Volume name -> list of service names that use the volume.
+	// Get eligible machines for each service without considering its volume mounts.
+	for _, spec := range s.serviceSpecs {
+		machineIDs, err := s.serviceEligibleMachinesWithoutVolumes(spec)
+		if err != nil {
+			return nil, err
+		}
+		serviceEligibleMachines[spec.Name] = machineIDs
+	}
+
+	// For each volume that exists on any machine(s) (which shouldn't be created), intersect each service's
+	// eligible machines that use the volume with the machines the volume is located on.
+	//
+	// Service name -> list of processed volume names (quoted) to format the error message.
+	quotedServiceVolumes := make(map[string][]string)
+	for volumeName, volumeMachines := range s.existingVolumeMachines {
+		for _, serviceName := range s.volumeServices[volumeName] {
+			quotedServiceVolumes[serviceName] = append(quotedServiceVolumes[serviceName],
+				fmt.Sprintf("'%s'", volumeName))
+			newEligibleMachines := serviceEligibleMachines[serviceName].Intersect(volumeMachines)
+			if newEligibleMachines.Cardinality() == 0 {
+				volumes := strings.Join(quotedServiceVolumes[serviceName], ", ")
+				return nil, fmt.Errorf("unable to find a machine that satisfies service '%s' "+
+					"placement constraints and has all required volumes: %s", serviceName, volumes)
+			}
+			serviceEligibleMachines[serviceName] = newEligibleMachines
+		}
+	}
+
+	// Skip constraints propagation for volumes that already exist on machines as the propagation only works
+	// for missing volumes.
+	placedVolumes := make(map[string]struct{})
+	for volumeName := range s.existingVolumeMachines {
+		placedVolumes[volumeName] = struct{}{}
+	}
+
+	if err := s.propagateConstraintsUntilConvergence(serviceEligibleMachines, placedVolumes); err != nil {
+		return nil, err
+	}
+
+	// Schedule each missing volume on one of its eligible machines.
+	scheduledVolumes := make(map[string][]api.VolumeSpec)
+	for missingVolumeName, missingVolumeSpec := range s.volumeSpecs {
+		// Skip volumes that already exist on machines.
+		if _, ok := s.existingVolumeMachines[missingVolumeName]; ok {
+			continue
+		}
+
+		serviceNames := s.volumeServices[missingVolumeName]
+		if len(serviceNames) == 0 {
+			return nil, fmt.Errorf("bug detected: no services using volume '%s'", missingVolumeName)
+		}
+
+		// Get the current eligible machines (any service using the volume will have the same set after convergence).
+		eligibleMachines := serviceEligibleMachines[serviceNames[0]]
+		if eligibleMachines.Cardinality() == 0 {
+			return nil, fmt.Errorf("bug detected: no eligible machines for volume '%s'", missingVolumeName)
+		}
+
+		// Choose the first machine in the sorted eligible machines to schedule the volume on.
+		// Sort the eligible machines to ensure deterministic behavior.
+		sortedEligibleMachines := eligibleMachines.ToSlice()
+		slices.Sort(sortedEligibleMachines)
+		machineID := sortedEligibleMachines[0]
+		// Update constraints for all services that use this volume to be placed on the selected machine.
+		for _, serviceName := range serviceNames {
+			serviceEligibleMachines[serviceName] = mapset.NewSet(machineID)
+		}
+		placedVolumes[missingVolumeName] = struct{}{}
+		scheduledVolumes[machineID] = append(scheduledVolumes[machineID], missingVolumeSpec)
+
+		// Propagate the updated constraints.
+		if err := s.propagateConstraintsUntilConvergence(serviceEligibleMachines, placedVolumes); err != nil {
+			return nil, fmt.Errorf("unexpected error while propagating constraints after "+
+				"scheduling volume '%s' on machine '%s': %w", missingVolumeName, machineID, err)
+		}
+	}
+
+	// Update the state of the machines with the scheduled volumes.
+	for machineID, volumes := range scheduledVolumes {
+		for _, m := range s.state.Machines {
+			if m.Info.Id == machineID {
+				m.ScheduledVolumes = append(m.ScheduledVolumes, volumes...)
+				break
+			}
+		}
+	}
+
+	return scheduledVolumes, nil
+}
+
+// serviceEligibleMachinesWithoutVolumes returns a set of machine IDs where the service can be scheduled
+// without considering its volume mounts.
+func (s *VolumeScheduler) serviceEligibleMachinesWithoutVolumes(spec api.ServiceSpec) (mapset.Set[string], error) {
+	specWithoutVolumes := spec.Clone()
+	specWithoutVolumes.Container.VolumeMounts = nil
+
+	scheduler := NewServiceScheduler(s.state, specWithoutVolumes)
+	machines, err := scheduler.EligibleMachines()
+	if err != nil {
+		return nil, fmt.Errorf("schedule service '%s': %w", spec.Name, err)
+	}
+
+	machineIDs := mapset.NewSetWithSize[string](len(machines))
+	for _, m := range machines {
+		machineIDs.Add(m.Info.Id)
+	}
+
+	return machineIDs, nil
+}
+
+// propagateConstraintsUntilConvergence iteratively narrows down eligible machines for services by propagating
+// constraints through shared volumes until convergence. It only processes volumes that need to be created (not
+// existing volumes) and ensures services sharing a volume converge to the same set of eligible machines.
+// If skipVolumes is provided, those volumes are excluded from constraint propagation.
+// Returns an error if any services have no eligible machines after constraint propagation.
+func (s *VolumeScheduler) propagateConstraintsUntilConvergence(
+	serviceEligibleMachines map[string]mapset.Set[string],
+	skipVolumes map[string]struct{},
+) error {
+	changed := true
+	// Loop until no more changes occur.
+	for changed {
+		changed = false
+
+		// For each volume, find the intersection of eligible machines for all services using that volume and update
+		// their eligible machines with the intersection. This will narrow down the machines where the volume can
+		// be created.
+		for volumeName, serviceNames := range s.volumeServices {
+			if skipVolumes != nil {
+				if _, ok := skipVolumes[volumeName]; ok {
+					continue
+				}
+			}
+			// Skip if there are no services using this volume (shouldn't happen).
+			if len(serviceNames) == 0 {
+				continue
+			}
+
+			// Find the intersection of eligible machines for all services using this volume.
+			var eligibleMachinesForVolume mapset.Set[string]
+			first := true
+			for _, serviceName := range serviceNames {
+				if first {
+					// First service: initialise the intersection.
+					eligibleMachinesForVolume = serviceEligibleMachines[serviceName].Clone()
+					first = false
+				} else {
+					eligibleMachinesForVolume = serviceEligibleMachines[serviceName].Intersect(
+						eligibleMachinesForVolume)
+				}
+			}
+
+			// If no machines are eligible for this volume, we have a constraint violation.
+			//goland:noinspection GoDfaNilDereference
+			if eligibleMachinesForVolume.Cardinality() == 0 {
+				var quotedServiceNames []string // Used to format the error message.
+				for _, svcName := range serviceNames {
+					quotedServiceNames = append(quotedServiceNames, fmt.Sprintf("'%s'", svcName))
+				}
+				return fmt.Errorf("unable to find a machine that satisfies placement constraints "+
+					"for services %s that must be placed together to share volume '%s'",
+					strings.Join(quotedServiceNames, ", "), volumeName)
+			}
+
+			// Update eligible machines for all services using this volume.
+			newCount := eligibleMachinesForVolume.Cardinality()
+			for _, serviceName := range serviceNames {
+				oldCount := serviceEligibleMachines[serviceName].Cardinality()
+				serviceEligibleMachines[serviceName] = eligibleMachinesForVolume
+
+				if oldCount != newCount {
+					changed = true
+				}
+			}
+		}
+	}
+
+	return nil
+}

pkg/client/deploy/scheduler/volume_test.go

@@ -0,0 +1,837 @@
+package scheduler
+
+import (
+	"testing"
+
+	"github.com/docker/docker/api/types/mount"
+	"github.com/docker/docker/api/types/volume"
+	"github.com/psviderski/uncloud/internal/machine/api/pb"
+	"github.com/psviderski/uncloud/pkg/api"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestVolumeScheduler_Schedule(t *testing.T) {
+	tests := []struct {
+		name         string
+		machines     []*Machine
+		serviceSpecs []api.ServiceSpec
+		want         map[string][]api.VolumeSpec
+		wantErr      string
+	}{
+		{
+			name: "single service with missing volume",
+			machines: []*Machine{
+				{
+					Info: &pb.MachineInfo{
+						Id: "machine1",
+					},
+				},
+			},
+			serviceSpecs: []api.ServiceSpec{
+				{
+					Name: "service1",
+					Container: api.ContainerSpec{
+						Image: "portainer/pause:latest",
+						VolumeMounts: []api.VolumeMount{
+							{
+								VolumeName:    "vol1",
+								ContainerPath: "/data",
+							},
+						},
+					},
+					Volumes: []api.VolumeSpec{
+						{
+							Name: "vol1",
+							Type: api.VolumeTypeVolume,
+						},
+					},
+				},
+			},
+			want: map[string][]api.VolumeSpec{
+				"machine1": {
+					{
+						Name: "vol1",
+						Type: api.VolumeTypeVolume,
+					},
+				},
+			},
+		},
+		{
+			name: "multiple services sharing a missing volume",
+			machines: []*Machine{
+				{
+					Info: &pb.MachineInfo{
+						Id: "machine1",
+					},
+					Volumes: []volume.Volume{},
+				},
+				{
+					Info: &pb.MachineInfo{
+						Id: "machine2",
+					},
+					Volumes: []volume.Volume{},
+				},
+			},
+			serviceSpecs: []api.ServiceSpec{
+				{
+					Name: "service1",
+					Container: api.ContainerSpec{
+						Image: "portainer/pause:latest",
+						VolumeMounts: []api.VolumeMount{
+							{
+								VolumeName:    "vol1",
+								ContainerPath: "/data",
+							},
+						},
+					},
+					Volumes: []api.VolumeSpec{
+						{
+							Name: "vol1",
+							Type: api.VolumeTypeVolume,
+						},
+					},
+				},
+				{
+					Name: "service2",
+					Container: api.ContainerSpec{
+						Image: "portainer/pause:latest",
+						VolumeMounts: []api.VolumeMount{
+							{
+								VolumeName:    "vol1",
+								ContainerPath: "/data",
+							},
+						},
+					},
+					Volumes: []api.VolumeSpec{
+						{
+							Name: "vol1",
+							Type: api.VolumeTypeVolume,
+						},
+					},
+				},
+			},
+			want: map[string][]api.VolumeSpec{
+				"machine1": {
+					{
+						Name: "vol1",
+						Type: api.VolumeTypeVolume,
+					},
+				},
+			},
+		},
+		{
+			name: "service with existing volume",
+			machines: []*Machine{
+				{
+					Info: &pb.MachineInfo{
+						Id: "machine1",
+					},
+				},
+				{
+					Info: &pb.MachineInfo{
+						Id: "machine2",
+					},
+					Volumes: []volume.Volume{
+						{
+							Name: "vol1",
+						},
+					},
+				},
+			},
+			serviceSpecs: []api.ServiceSpec{
+				{
+					Name: "service1",
+					Container: api.ContainerSpec{
+						Image: "portainer/pause:latest",
+						VolumeMounts: []api.VolumeMount{
+							{
+								VolumeName:    "vol1",
+								ContainerPath: "/data",
+							},
+						},
+					},
+					Volumes: []api.VolumeSpec{
+						{
+							Name: "vol1",
+							Type: api.VolumeTypeVolume,
+						},
+					},
+				},
+			},
+			want: map[string][]api.VolumeSpec{},
+		},
+		{
+			name: "service with placement constraint and missing volume",
+			machines: []*Machine{
+				{
+					Info: &pb.MachineInfo{
+						Id: "machine1",
+					},
+					Volumes: []volume.Volume{},
+				},
+				{
+					Info: &pb.MachineInfo{
+						Id: "machine2",
+					},
+					Volumes: []volume.Volume{},
+				},
+			},
+			serviceSpecs: []api.ServiceSpec{
+				{
+					Name: "service1",
+					Placement: api.Placement{
+						Machines: []string{"machine2"},
+					},
+					Container: api.ContainerSpec{
+						Image: "portainer/pause:latest",
+						VolumeMounts: []api.VolumeMount{
+							{
+								VolumeName:    "vol1",
+								ContainerPath: "/data",
+							},
+						},
+					},
+					Volumes: []api.VolumeSpec{
+						{
+							Name: "vol1",
+							Type: api.VolumeTypeVolume,
+						},
+					},
+				},
+			},
+			want: map[string][]api.VolumeSpec{
+				"machine2": {
+					{
+						Name: "vol1",
+						Type: api.VolumeTypeVolume,
+					},
+				},
+			},
+		},
+		{
+			name: "services with conflicting placement constraints",
+			machines: []*Machine{
+				{
+					Info: &pb.MachineInfo{
+						Id: "machine1",
+					},
+					Volumes: []volume.Volume{},
+				},
+				{
+					Info: &pb.MachineInfo{
+						Id: "machine2",
+					},
+					Volumes: []volume.Volume{},
+				},
+			},
+			serviceSpecs: []api.ServiceSpec{
+				{
+					Name: "service1",
+					Placement: api.Placement{
+						Machines: []string{"machine1"},
+					},
+					Container: api.ContainerSpec{
+						Image: "portainer/pause:latest",
+						VolumeMounts: []api.VolumeMount{
+							{
+								VolumeName:    "vol1",
+								ContainerPath: "/data",
+							},
+						},
+					},
+					Volumes: []api.VolumeSpec{
+						{
+							Name: "vol1",
+							Type: api.VolumeTypeVolume,
+						},
+					},
+				},
+				{
+					Name: "service2",
+					Placement: api.Placement{
+						Machines: []string{"machine2"},
+					},
+					Container: api.ContainerSpec{
+						Image: "portainer/pause:latest",
+						VolumeMounts: []api.VolumeMount{
+							{
+								VolumeName:    "vol1",
+								ContainerPath: "/data",
+							},
+						},
+					},
+					Volumes: []api.VolumeSpec{
+						{
+							Name: "vol1",
+							Type: api.VolumeTypeVolume,
+						},
+					},
+				},
+			},
+			wantErr: "unable to find a machine that satisfies placement constraints for services " +
+				"'service1', 'service2' that must be placed together to share volume 'vol1'",
+		},
+		{
+			name: "service with existing volume on wrong machine",
+			machines: []*Machine{
+				{
+					Info: &pb.MachineInfo{
+						Id: "machine1",
+					},
+					Volumes: []volume.Volume{
+						{
+							Name: "vol1",
+						},
+					},
+				},
+				{
+					Info: &pb.MachineInfo{
+						Id: "machine2",
+					},
+					Volumes: []volume.Volume{},
+				},
+			},
+			serviceSpecs: []api.ServiceSpec{
+				{
+					Name: "service1",
+					Placement: api.Placement{
+						Machines: []string{"machine2"},
+					},
+					Container: api.ContainerSpec{
+						Image: "portainer/pause:latest",
+						VolumeMounts: []api.VolumeMount{
+							{
+								VolumeName:    "vol1",
+								ContainerPath: "/data",
+							},
+						},
+					},
+					Volumes: []api.VolumeSpec{
+						{
+							Name: "vol1",
+							Type: api.VolumeTypeVolume,
+						},
+					},
+				},
+			},
+			wantErr: "unable to find a machine that satisfies service 'service1' placement constraints " +
+				"and has all required volumes: 'vol1'",
+		},
+		{
+			name: "multiple services with multiple volumes, some shared",
+			machines: []*Machine{
+				{
+					Info: &pb.MachineInfo{
+						Id: "machine1",
+					},
+					Volumes: []volume.Volume{},
+				},
+				{
+					Info: &pb.MachineInfo{
+						Id: "machine2",
+					},
+					Volumes: []volume.Volume{},
+				},
+			},
+			serviceSpecs: []api.ServiceSpec{
+				{
+					Name: "service1",
+					Container: api.ContainerSpec{
+						Image: "portainer/pause:latest",
+						VolumeMounts: []api.VolumeMount{
+							{
+								VolumeName:    "vol1",
+								ContainerPath: "/data1",
+							},
+							{
+								VolumeName:    "vol2",
+								ContainerPath: "/data2",
+							},
+						},
+					},
+					Volumes: []api.VolumeSpec{
+						{
+							Name: "vol1",
+							Type: api.VolumeTypeVolume,
+						},
+						{
+							Name: "vol2",
+							Type: api.VolumeTypeVolume,
+						},
+					},
+				},
+				{
+					Name: "service2",
+					Container: api.ContainerSpec{
+						Image: "portainer/pause:latest",
+						VolumeMounts: []api.VolumeMount{
+							{
+								VolumeName:    "vol2",
+								ContainerPath: "/data2",
+							},
+							{
+								VolumeName:    "vol3",
+								ContainerPath: "/data3",
+							},
+						},
+					},
+					Volumes: []api.VolumeSpec{
+						{
+							Name: "vol2",
+							Type: api.VolumeTypeVolume,
+						},
+						{
+							Name: "vol3",
+							Type: api.VolumeTypeVolume,
+						},
+					},
+				},
+				{
+					Name: "service3",
+					Container: api.ContainerSpec{
+						Image: "portainer/pause:latest",
+						VolumeMounts: []api.VolumeMount{
+							{
+								VolumeName:    "vol3",
+								ContainerPath: "/data3",
+							},
+							{
+								VolumeName:    "vol4",
+								ContainerPath: "/data4",
+							},
+						},
+					},
+					Volumes: []api.VolumeSpec{
+						{
+							Name: "vol3",
+							Type: api.VolumeTypeVolume,
+						},
+						{
+							Name: "vol4",
+							Type: api.VolumeTypeVolume,
+						},
+					},
+				},
+			},
+			want: map[string][]api.VolumeSpec{
+				"machine1": {
+					{
+						Name: "vol1",
+						Type: api.VolumeTypeVolume,
+					},
+					{
+						Name: "vol2",
+						Type: api.VolumeTypeVolume,
+					},
+					{
+						Name: "vol3",
+						Type: api.VolumeTypeVolume,
+					},
+					{
+						Name: "vol4",
+						Type: api.VolumeTypeVolume,
+					},
+				},
+			},
+		},
+		{
+			name: "multiple services with multiple volumes, some shared and existing",
+			machines: []*Machine{
+				{
+					Info: &pb.MachineInfo{
+						Id: "machine1",
+					},
+				},
+				{
+					Info: &pb.MachineInfo{
+						Id: "machine2",
+					},
+					Volumes: []volume.Volume{
+						{
+							Name: "vol2",
+						},
+					},
+				},
+				{
+					Info: &pb.MachineInfo{
+						Id: "machine3",
+					},
+					Volumes: []volume.Volume{
+						{
+							Name: "vol1",
+						},
+						{
+							Name: "vol2",
+						},
+					},
+				},
+			},
+			serviceSpecs: []api.ServiceSpec{
+				{
+					Name: "service1",
+					Container: api.ContainerSpec{
+						Image: "portainer/pause:latest",
+						VolumeMounts: []api.VolumeMount{
+							{
+								VolumeName:    "vol3",
+								ContainerPath: "/data3",
+							},
+							{
+								VolumeName:    "vol4",
+								ContainerPath: "/data4",
+							},
+						},
+					},
+					Volumes: []api.VolumeSpec{
+						{
+							Name: "vol3",
+							Type: api.VolumeTypeVolume,
+						},
+						{
+							Name: "vol4",
+							Type: api.VolumeTypeVolume,
+						},
+					},
+				},
+				{
+					Name: "service2",
+					Container: api.ContainerSpec{
+						Image: "portainer/pause:latest",
+						VolumeMounts: []api.VolumeMount{
+							{
+								VolumeName:    "vol1",
+								ContainerPath: "/data1",
+							},
+							{
+								VolumeName:    "vol2",
+								ContainerPath: "/data2",
+							},
+							{
+								VolumeName:    "vol3",
+								ContainerPath: "/data3",
+							},
+						},
+					},
+					Volumes: []api.VolumeSpec{
+						{
+							Name: "vol1",
+							Type: api.VolumeTypeVolume,
+						},
+						{
+							Name: "vol2",
+							Type: api.VolumeTypeVolume,
+							VolumeOptions: &api.VolumeOptions{
+								Driver: &mount.Driver{
+									Name: api.VolumeDriverLocal,
+								},
+							},
+						},
+						{
+							Name: "vol3",
+							Type: api.VolumeTypeVolume,
+						},
+					},
+				},
+				{
+					Name: "service3",
+					Container: api.ContainerSpec{
+						Image: "portainer/pause:latest",
+						VolumeMounts: []api.VolumeMount{
+							{
+								VolumeName:    "vol2",
+								ContainerPath: "/data2",
+							},
+							{
+								VolumeName:    "vol4-alias",
+								ContainerPath: "/data4",
+							},
+						},
+					},
+					Volumes: []api.VolumeSpec{
+						{
+							Name: "vol2",
+							Type: api.VolumeTypeVolume,
+							VolumeOptions: &api.VolumeOptions{
+								Driver: &mount.Driver{
+									Name: api.VolumeDriverLocal,
+								},
+							},
+						},
+						{
+							Name: "vol4-alias",
+							Type: api.VolumeTypeVolume,
+							VolumeOptions: &api.VolumeOptions{
+								Name: "vol4",
+							},
+						},
+					},
+				},
+				{
+					Name: "service4",
+					Container: api.ContainerSpec{
+						Image: "portainer/pause:latest",
+						VolumeMounts: []api.VolumeMount{
+							{
+								VolumeName:    "vol2-alias",
+								ContainerPath: "/data2",
+							},
+							{
+								VolumeName:    "vol5-with-driver",
+								ContainerPath: "/data5",
+							},
+						},
+					},
+					Volumes: []api.VolumeSpec{
+						{
+							Name: "vol2-alias",
+							Type: api.VolumeTypeVolume,
+							VolumeOptions: &api.VolumeOptions{
+								Name: "vol2",
+								Driver: &mount.Driver{
+									Name: api.VolumeDriverLocal,
+								},
+							},
+						},
+						{
+							Name: "vol5-with-driver",
+							Type: api.VolumeTypeVolume,
+							VolumeOptions: &api.VolumeOptions{
+								Name: "vol5",
+								Driver: &mount.Driver{
+									Name: api.VolumeDriverLocal,
+								},
+							},
+						},
+					},
+				},
+			},
+			want: map[string][]api.VolumeSpec{
+				"machine2": {
+					{
+						Name: "vol5",
+						Type: api.VolumeTypeVolume,
+						VolumeOptions: &api.VolumeOptions{
+							Driver: &mount.Driver{
+								Name: api.VolumeDriverLocal,
+							},
+						},
+					},
+				},
+				"machine3": {
+					{
+						Name: "vol3",
+						Type: api.VolumeTypeVolume,
+					},
+					{
+						Name: "vol4",
+						Type: api.VolumeTypeVolume,
+					},
+				},
+			},
+		},
+		{
+			name: "multiple services with multiple volumes, some shared, with conflicting placement constraints",
+			machines: []*Machine{
+				{
+					Info: &pb.MachineInfo{
+						Id: "machine1",
+					},
+					Volumes: []volume.Volume{},
+				},
+				{
+					Info: &pb.MachineInfo{
+						Id: "machine2",
+					},
+					Volumes: []volume.Volume{},
+				},
+			},
+			serviceSpecs: []api.ServiceSpec{
+				{
+					Name: "service1",
+					Placement: api.Placement{
+						Machines: []string{"machine1"},
+					},
+					Container: api.ContainerSpec{
+						Image: "portainer/pause:latest",
+						VolumeMounts: []api.VolumeMount{
+							{
+								VolumeName:    "vol1",
+								ContainerPath: "/data1",
+							},
+							{
+								VolumeName:    "vol2",
+								ContainerPath: "/data2",
+							},
+						},
+					},
+					Volumes: []api.VolumeSpec{
+						{
+							Name: "vol1",
+							Type: api.VolumeTypeVolume,
+						},
+						{
+							Name: "vol2",
+							Type: api.VolumeTypeVolume,
+						},
+					},
+				},
+				{
+					Name: "service2",
+					Placement: api.Placement{
+						Machines: []string{"machine2"},
+					},
+					Container: api.ContainerSpec{
+						Image: "portainer/pause:latest",
+						VolumeMounts: []api.VolumeMount{
+							{
+								VolumeName:    "vol2",
+								ContainerPath: "/data2",
+							},
+							{
+								VolumeName:    "vol3",
+								ContainerPath: "/data3",
+							},
+						},
+					},
+					Volumes: []api.VolumeSpec{
+						{
+							Name: "vol2",
+							Type: api.VolumeTypeVolume,
+						},
+						{
+							Name: "vol3",
+							Type: api.VolumeTypeVolume,
+						},
+					},
+				},
+			},
+			wantErr: "unable to find a machine that satisfies placement constraints for services " +
+				"'service1', 'service2' that must be placed together to share volume 'vol2'",
+		},
+		{
+			name: "multiple services with multiple volumes, no shared",
+			machines: []*Machine{
+				{
+					Info: &pb.MachineInfo{
+						Id: "machine1",
+					},
+					Volumes: []volume.Volume{
+						{
+							Name: "vol1",
+						},
+					},
+				},
+				{
+					Info: &pb.MachineInfo{
+						Id: "machine2",
+					},
+					Volumes: []volume.Volume{
+						{
+							Name: "vol3",
+						},
+					},
+				},
+			},
+			serviceSpecs: []api.ServiceSpec{
+				{
+					Name: "service1",
+					Container: api.ContainerSpec{
+						Image: "portainer/pause:latest",
+						VolumeMounts: []api.VolumeMount{
+							{
+								VolumeName:    "vol1",
+								ContainerPath: "/data1",
+							},
+							{
+								VolumeName:    "vol2",
+								ContainerPath: "/data2",
+							},
+						},
+					},
+					Volumes: []api.VolumeSpec{
+						{
+							Name: "vol1",
+							Type: api.VolumeTypeVolume,
+						},
+						{
+							Name: "vol2",
+							Type: api.VolumeTypeVolume,
+						},
+					},
+				},
+				{
+					Name: "service2",
+					Container: api.ContainerSpec{
+						Image: "portainer/pause:latest",
+						VolumeMounts: []api.VolumeMount{
+							{
+								VolumeName:    "vol3",
+								ContainerPath: "/data3",
+							},
+							{
+								VolumeName:    "vol4",
+								ContainerPath: "/data4",
+							},
+						},
+					},
+					Volumes: []api.VolumeSpec{
+						{
+							Name: "vol3",
+							Type: api.VolumeTypeVolume,
+						},
+						{
+							Name: "vol4",
+							Type: api.VolumeTypeVolume,
+						},
+					},
+				},
+			},
+			want: map[string][]api.VolumeSpec{
+				"machine1": {
+					{
+						Name: "vol2",
+						Type: api.VolumeTypeVolume,
+					},
+				},
+				"machine2": {
+					{
+						Name: "vol4",
+						Type: api.VolumeTypeVolume,
+					},
+				},
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			state := &ClusterState{
+				Machines: tt.machines,
+			}
+			scheduler, err := NewVolumeScheduler(state, tt.serviceSpecs)
+			require.NoError(t, err)
+			result, err := scheduler.Schedule()
+
+			if tt.wantErr != "" {
+				assert.Error(t, err)
+				assert.Contains(t, err.Error(), tt.wantErr)
+			} else {
+				assert.NoError(t, err)
+
+				assert.Len(t, result, len(tt.want), "Number of machines with volumes to create should match")
+				for machineID, expectedVolumes := range tt.want {
+					// Transform the expected volumes to the canonical form with defaults set.
+					for i := range expectedVolumes {
+						expectedVolumes[i] = expectedVolumes[i].SetDefaults()
+					}
+
+					actualVolumes, ok := result[machineID]
+					assert.True(t, ok, "Machine %s should be in the result", machineID)
+					assert.ElementsMatch(t, expectedVolumes, actualVolumes,
+						"Volumes for machine %s should match", machineID)
+				}
+			}
+		})
+	}
+}

pkg/client/deploy/strategy.go

@@ -9,6 +9,7 @@ import (
 	"github.com/psviderski/uncloud/internal/machine/api/pb"
 	"github.com/psviderski/uncloud/internal/secret"
 	"github.com/psviderski/uncloud/pkg/api"
+	"github.com/psviderski/uncloud/pkg/client/deploy/scheduler"
 )
 
 // Strategy defines how a service should be deployed or updated. Different implementations can provide various
@@ -18,14 +19,13 @@ type Strategy interface {
 	Type() string
 	// Plan returns the operation to reconcile the service to the desired state.
 	// If the service does not exist (new deployment), svc will be nil.
-	Plan(ctx context.Context, cli api.MachineClient, svc *api.Service, spec api.ServiceSpec) (Plan, error)
+	Plan(ctx context.Context, cli scheduler.Client, svc *api.Service, spec api.ServiceSpec) (Plan, error)
 }
 
 // RollingStrategy implements a rolling update deployment pattern where containers are updated one at a time
 // to minimize service disruption.
 type RollingStrategy struct {
-	// MachineFilter optionally restricts which machines can be used for deployment.
-	MachineFilter MachineFilter
+	State *scheduler.ClusterState
 }
 
 func (s *RollingStrategy) Type() string {
@@ -33,14 +33,22 @@ func (s *RollingStrategy) Type() string {
 }
 
 func (s *RollingStrategy) Plan(
-	ctx context.Context, cli api.MachineClient, svc *api.Service, spec api.ServiceSpec,
+	ctx context.Context, cli scheduler.Client, svc *api.Service, spec api.ServiceSpec,
 ) (Plan, error) {
+	if s.State == nil {
+		state, err := scheduler.InspectClusterState(ctx, cli)
+		if err != nil {
+			return Plan{}, fmt.Errorf("inspect cluster state: %w", err)
+		}
+		s.State = state
+	}
+
 	// We can assume that the spec is valid at this point because it has been validated by the deployment.
 	switch spec.Mode {
 	case api.ServiceModeReplicated:
-		return s.planReplicated(ctx, cli, svc, spec)
+		return s.planReplicated(svc, spec)
 	case api.ServiceModeGlobal:
-		return s.planGlobal(ctx, cli, svc, spec)
+		return s.planGlobal(svc, spec)
 	default:
 		return Plan{}, fmt.Errorf("unsupported service mode: '%s'", spec.Mode)
 	}
@@ -50,43 +58,27 @@ func (s *RollingStrategy) Plan(
 // For replicated services, we want to maintain a specific number of containers (replicas) across the available machines
 // in the cluster.
 // TODO: schedule containers only on machines that contain the image if pull policy is set to 'never'.
-func (s *RollingStrategy) planReplicated(
-	ctx context.Context, cli api.MachineClient, svc *api.Service, spec api.ServiceSpec,
-) (Plan, error) {
+func (s *RollingStrategy) planReplicated(svc *api.Service, spec api.ServiceSpec) (Plan, error) {
 	plan, err := newEmptyPlan(svc, spec)
 	if err != nil {
 		return plan, err
 	}
 
-	machines, err := cli.ListMachines(ctx)
+	sched := scheduler.NewServiceScheduler(s.State, spec)
+	// TODO: return a detailed report on required constraints and which ones are satisfied?
+	availableMachines, err := sched.EligibleMachines()
 	if err != nil {
-		return plan, fmt.Errorf("list machines: %w", err)
-	}
-	// Filter machines that are not DOWN and match the machine filter if provided.
-	var availableMachines []*pb.MachineInfo
-	var unmatchedMachines []*pb.MachineInfo
-	var downMachines []*pb.MachineInfo
-	for _, m := range machines {
-		if m.State == pb.MachineMember_DOWN {
-			downMachines = append(downMachines, m.Machine)
-		} else {
-			if s.MachineFilter == nil || s.MachineFilter(m.Machine) {
-				availableMachines = append(availableMachines, m.Machine)
-			} else {
-				unmatchedMachines = append(unmatchedMachines, m.Machine)
-			}
-		}
+		return plan, err
 	}
 
-	if len(availableMachines) == 0 {
-		if s.MachineFilter != nil {
-			return plan, ErrNoMatchingMachines
-		}
-		return plan, fmt.Errorf("no available machines to deploy service")
+	var matchedMachines []*pb.MachineInfo
+	for _, m := range availableMachines {
+		matchedMachines = append(matchedMachines, m.Info)
 	}
+
 	// Randomise the order of machines to avoid always deploying to the same machines first.
-	rand.Shuffle(len(availableMachines), func(i, j int) {
-		availableMachines[i], availableMachines[j] = availableMachines[j], availableMachines[i]
+	rand.Shuffle(len(matchedMachines), func(i, j int) {
+		matchedMachines[i], matchedMachines[j] = matchedMachines[j], matchedMachines[i]
 	})
 
 	// Organise existing containers by machine.
@@ -125,7 +117,7 @@ func (s *RollingStrategy) planReplicated(
 
 		// Sort machines such that machines with the most up-to-date containers are first, followed by machines with
 		// existing containers, and finally machines without containers.
-		slices.SortFunc(availableMachines, func(m1, m2 *pb.MachineInfo) int {
+		slices.SortFunc(matchedMachines, func(m1, m2 *pb.MachineInfo) int {
 			if upToDateContainersOnMachine[m1.Id] > 0 && upToDateContainersOnMachine[m2.Id] > 0 {
 				return upToDateContainersOnMachine[m2.Id] - upToDateContainersOnMachine[m1.Id]
 			}
@@ -142,7 +134,7 @@ func (s *RollingStrategy) planReplicated(
 	// Spread the containers across the available machines evenly using a simple round-robin approach, starting with
 	// machines that already have containers and prioritising machines with containers that match the desired spec.
 	for i := 0; i < int(spec.Replicas); i++ {
-		m := availableMachines[i%len(availableMachines)]
+		m := matchedMachines[i%len(matchedMachines)]
 		containers := containersOnMachine[m.Id]
 
 		if len(containers) == 0 {
@@ -209,9 +201,7 @@ func (s *RollingStrategy) planReplicated(
 // possible. If the new container would have port conflicts with the existing one, the old container is removed first.
 // It handles multiple containers per machine (though this should not occur in normal operation) and skips machines
 // that are down.
-func (s *RollingStrategy) planGlobal(
-	ctx context.Context, cli api.MachineClient, svc *api.Service, spec api.ServiceSpec,
-) (Plan, error) {
+func (s *RollingStrategy) planGlobal(svc *api.Service, spec api.ServiceSpec) (Plan, error) {
 	plan, err := newEmptyPlan(svc, spec)
 	if err != nil {
 		return plan, err
@@ -227,39 +217,32 @@ func (s *RollingStrategy) planGlobal(
 		}
 	}
 
-	machines, err := cli.ListMachines(ctx)
+	sched := scheduler.NewServiceScheduler(s.State, spec)
+	availableMachines, err := sched.EligibleMachines()
 	if err != nil {
-		return plan, fmt.Errorf("list machines: %w", err)
-	}
-	// Filter machines if a machine filter is provided.
-	// TODO: not sure this is the right behaviour to ignore other machines that might run service containers.
-	//  Maybe there should be another filter to specify which machines to deploy to but keep the rest running.
-	//  Could be useful to test a new version on a subset of machines before rolling out to all.
-	if s.MachineFilter != nil {
-		machines = slices.DeleteFunc(machines, func(m *pb.MachineMember) bool {
-			return !s.MachineFilter(m.Machine)
-		})
-		if len(machines) == 0 {
-			return plan, ErrNoMatchingMachines
-		}
+		return plan, err
 	}
 
-	// TODO: figure out how to return a warning if there are machines down. Embed the machinesDown in the plan?
-	var machinesDown []*pb.MachineInfo
-	for _, m := range machines {
-		// Skip machines that are down but collect them to report a warning later.
-		if m.State == pb.MachineMember_DOWN {
-			machinesDown = append(machinesDown, m.Machine)
-			fmt.Printf("WARNING: failed to run a service container on machine '%s' which is Down.\n", m.Machine.Id)
-			continue
-		}
-
-		containers := containersOnMachine[m.Machine.Id]
-		ops, err := reconcileGlobalContainer(containers, spec, plan.ServiceID, m.Machine.Id)
+	for _, m := range availableMachines {
+		containers := containersOnMachine[m.Info.Id]
+		ops, err := reconcileGlobalContainer(containers, spec, plan.ServiceID, m.Info.Id)
 		if err != nil {
 			return plan, err
 		}
 		plan.Operations = append(plan.Operations, ops...)
+
+		delete(containersOnMachine, m.Info.Id)
+	}
+
+	// Remove any remaining containers on machines that don't match the new placement constraints.
+	for _, containers := range containersOnMachine {
+		for _, c := range containers {
+			plan.Operations = append(plan.Operations, &RemoveContainerOperation{
+				ServiceID:   plan.ServiceID,
+				ContainerID: c.Container.ID,
+				MachineID:   c.MachineID,
+			})
+		}
 	}
 
 	return plan, nil

pkg/client/image.go

@@ -2,6 +2,7 @@ package client
 
 import (
 	"context"
+
 	dockerclient "github.com/docker/docker/client"
 	"github.com/psviderski/uncloud/pkg/api"
 )

pkg/client/machine.go

@@ -0,0 +1,67 @@
+package client
+
+import (
+	"context"
+	"slices"
+
+	"github.com/psviderski/uncloud/internal/machine/api/pb"
+	"github.com/psviderski/uncloud/pkg/api"
+	"google.golang.org/protobuf/types/known/emptypb"
+)
+
+func (cli *Client) InspectMachine(ctx context.Context, nameOrID string) (*pb.MachineMember, error) {
+	machines, err := cli.ListMachines(ctx, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	for _, m := range machines {
+		if m.Machine.Id == nameOrID || m.Machine.Name == nameOrID {
+			return m, nil
+		}
+	}
+
+	return nil, api.ErrNotFound
+}
+
+// ListMachines returns a list of all machines registered in the cluster that match the filter.
+func (cli *Client) ListMachines(ctx context.Context, filter *api.MachineFilter) (api.MachineMembersList, error) {
+	resp, err := cli.ClusterClient.ListMachines(ctx, &emptypb.Empty{})
+	if err != nil {
+		return nil, err
+	}
+
+	machines := resp.Machines
+
+	if filter != nil {
+		var matchedMachines api.MachineMembersList
+		for _, m := range machines {
+			if MachineMatchesFilter(m, filter) {
+				matchedMachines = append(matchedMachines, m)
+			}
+		}
+		machines = matchedMachines
+	}
+
+	return machines, nil
+}
+
+func MachineMatchesFilter(machine *pb.MachineMember, filter *api.MachineFilter) bool {
+	if filter == nil {
+		return true
+	}
+
+	if filter.Available && machine.State == pb.MachineMember_DOWN {
+		return false
+	}
+
+	if len(filter.NamesOrIDs) > 0 {
+		if !slices.ContainsFunc(filter.NamesOrIDs, func(nameOrID string) bool {
+			return machine.Machine.Id == nameOrID || machine.Machine.Name == nameOrID
+		}) {
+			return false
+		}
+	}
+
+	return true
+}

pkg/client/print.go

@@ -0,0 +1,14 @@
+package client
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/charmbracelet/lipgloss"
+)
+
+func PrintWarning(msg string) {
+	style := lipgloss.NewStyle().Foreground(lipgloss.Color("11")) // Bright yellow.
+	styledMsg := style.Render(fmt.Sprintf("WARNING: %s", msg))
+	fmt.Fprintln(os.Stderr, styledMsg)
+}

pkg/client/resolver.go

@@ -37,7 +37,7 @@ func (r *MapNameResolver) ContainerName(containerID string) string {
 // ServiceOperationNameResolver returns a machine and container name resolver for a service that can be used to format
 // deployment operations.
 func (cli *Client) ServiceOperationNameResolver(ctx context.Context, svc api.Service) (*MapNameResolver, error) {
-	machines, err := cli.ListMachines(ctx)
+	machines, err := cli.ListMachines(ctx, nil)
 	if err != nil {
 		return nil, fmt.Errorf("list machines: %w", err)
 	}