refactor: embed ServiceSpecResolver into Deployment to handle spec only there

cmd/uncloud/caddy/deploy.go

@@ -96,7 +96,7 @@ func runDeploy(ctx context.Context, uncli *cli.CLI, opts deployOptions) error {
 		filter = machineFilter(machines)
 	}
 
-	d, err := clusterClient.NewCaddyDeployment(opts.image, filter)
+	d, err := clusterClient.NewCaddyDeployment(ctx, opts.image, filter)
 	if err != nil {
 		return fmt.Errorf("create caddy deployment: %w", err)
 	}

cmd/uncloud/deploy.go

@@ -40,7 +40,7 @@ func NewDeployCommand() *cobra.Command {
 	}
 
 	cmd.Flags().StringSliceVarP(&opts.files, "file", "f", nil,
-		"One or more Compose files to deploy services from. (default compose.yaml)")
+		"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)")
 

cmd/uncloud/machine/add.go

@@ -136,7 +136,7 @@ func add(ctx context.Context, uncli *cli.CLI, remoteMachine cli.RemoteMachine, o
 		}
 	}
 
-	d, err := machineClient.NewCaddyDeployment(caddyImage, filter)
+	d, err := machineClient.NewCaddyDeployment(ctx, caddyImage, filter)
 	if err != nil {
 		return fmt.Errorf("create caddy deployment: %w", err)
 	}

cmd/uncloud/machine/init.go

@@ -4,14 +4,14 @@ import (
 	"context"
 	"fmt"
 	"github.com/docker/compose/v2/pkg/progress"
-	"github.com/spf13/cobra"
-	"net/netip"
 	"github.com/psviderski/uncloud/cmd/uncloud/caddy"
 	"github.com/psviderski/uncloud/cmd/uncloud/dns"
 	"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/internal/machine/cluster"
+	"github.com/spf13/cobra"
+	"net/netip"
 )
 
 type initOptions struct {
@@ -132,7 +132,7 @@ func initCluster(ctx context.Context, uncli *cli.CLI, remoteMachine *cli.RemoteM
 	}
 
 	if !opts.noCaddy {
-		d, err := client.NewCaddyDeployment("", nil)
+		d, err := client.NewCaddyDeployment(ctx, "", nil)
 		if err != nil {
 			return fmt.Errorf("create caddy deployment: %w", err)
 		}

cmd/uncloud/service/scale.go

@@ -89,7 +89,11 @@ func scale(ctx context.Context, uncli *cli.CLI, opts scaleOptions) error {
 
 	spec.Replicas = opts.replicas
 
-	deployment := clusterClient.NewDeployment(spec, nil)
+	deployment, err := clusterClient.NewDeployment(ctx, spec, nil)
+	if err != nil {
+		return fmt.Errorf("create deployment: %w", err)
+	}
+
 	plan, err := deployment.Plan(ctx)
 	if err != nil {
 		return fmt.Errorf("plan deployment: %w", err)

pkg/api/service.go

@@ -120,6 +120,18 @@ func (s *ServiceSpec) Equals(spec ServiceSpec) bool {
 	return reflect.DeepEqual(*s, spec)
 }
 
+func (s *ServiceSpec) Clone() ServiceSpec {
+	spec := *s
+
+	if s.Ports != nil {
+		spec.Ports = make([]PortSpec, len(s.Ports))
+		copy(spec.Ports, s.Ports)
+	}
+	spec.Container = s.Container.Clone()
+
+	return spec
+}
+
 type ContainerSpec struct {
 	// Command overrides the default CMD of the image to be executed when running a container.
 	Command []string
@@ -140,6 +152,25 @@ func (s *ContainerSpec) Validate() error {
 	return nil
 }
 
+func (s *ContainerSpec) Clone() ContainerSpec {
+	spec := *s
+
+	if s.Command != nil {
+		spec.Command = make([]string, len(s.Command))
+		copy(spec.Command, s.Command)
+	}
+	if s.Entrypoint != nil {
+		spec.Entrypoint = make([]string, len(s.Entrypoint))
+		copy(spec.Entrypoint, s.Entrypoint)
+	}
+	if s.Volumes != nil {
+		spec.Volumes = make([]string, len(s.Volumes))
+		copy(spec.Volumes, s.Volumes)
+	}
+
+	return spec
+}
+
 type Service struct {
 	ID         string
 	Name       string

pkg/client/caddy.go

@@ -1,6 +1,7 @@
 package client
 
 import (
+	"context"
 	"fmt"
 	"github.com/Masterminds/semver"
 	"github.com/distribution/reference"
@@ -22,8 +23,10 @@ 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) {
-	latest, err := latestCaddyImage()
+func (cli *Client) NewCaddyDeployment(
+	ctx context.Context, image string, filter deploy.MachineFilter,
+) (*deploy.Deployment, error) {
+	latest, err := LatestCaddyImage()
 	if err != nil {
 		return nil, fmt.Errorf("look up latest Caddy image: %w", err)
 	}
@@ -56,12 +59,12 @@ func (cli *Client) NewCaddyDeployment(image string, filter deploy.MachineFilter)
 		},
 	}
 
-	return cli.NewDeployment(spec, &deploy.RollingStrategy{MachineFilter: filter}), nil
+	return cli.NewDeployment(ctx, spec, &deploy.RollingStrategy{MachineFilter: filter})
 }
 
-// latestCaddyImage returns the latest image of the official Caddy Docker image on Docker Hub.
+// LatestCaddyImage returns the latest image of the official Caddy Docker image on Docker Hub.
 // The latest image is determined by the latest version tag 2.x.x.
-func latestCaddyImage() (reference.NamedTagged, error) {
+func LatestCaddyImage() (reference.NamedTagged, error) {
 	repo, err := name.NewRepository(CaddyImage)
 	if err != nil {
 		return nil, fmt.Errorf("parse image: %w", err)

pkg/client/caddy_test.go

@@ -1,69 +1,17 @@
 package client
 
 import (
-	"github.com/psviderski/uncloud/pkg/api"
+	"github.com/distribution/reference"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 	"testing"
 )
 
-func TestClient_NewCaddyDeployment(t *testing.T) {
+func TestLatestCaddyImage(t *testing.T) {
 	t.Parallel()
 
-	cli := &Client{}
+	image, err := LatestCaddyImage()
+	require.NoError(t, err)
 
-	t.Run("latest image from Docker Hub", func(t *testing.T) {
-		t.Parallel()
-
-		deploy, err := cli.NewCaddyDeployment("", nil)
-		require.NoError(t, err)
-
-		assert.Equal(t, "caddy", deploy.Spec.Name)
-		assert.Equal(t, api.ServiceModeGlobal, deploy.Spec.Mode)
-		assert.Regexp(t, `^caddy:2\.\d+\.\d+$`, deploy.Spec.Container.Image)
-		expectedPorts := []api.PortSpec{
-			{
-				PublishedPort: 80,
-				ContainerPort: 80,
-				Protocol:      api.ProtocolTCP,
-				Mode:          api.PortModeHost,
-			},
-			{
-				PublishedPort: 443,
-				ContainerPort: 443,
-				Protocol:      api.ProtocolTCP,
-				Mode:          api.PortModeHost,
-			},
-		}
-		assert.Equal(t, expectedPorts, deploy.Spec.Ports)
-		// TODO:
-		//assert.Equal(t, alwaysPullImage, deploy.Spec.Container.PullPolicy)
-	})
-
-	t.Run("custom image", func(t *testing.T) {
-		t.Parallel()
-
-		image := "my-caddy:1.2.3"
-		deploy, err := cli.NewCaddyDeployment(image, nil)
-		require.NoError(t, err)
-
-		assert.Equal(t, "caddy", deploy.Spec.Name)
-		assert.Equal(t, api.ServiceModeGlobal, deploy.Spec.Mode)
-		assert.Equal(t, image, deploy.Spec.Container.Image)
-		expectedPorts := []api.PortSpec{
-			{
-				PublishedPort: 80,
-				ContainerPort: 80,
-				Protocol:      api.ProtocolTCP,
-				Mode:          api.PortModeHost,
-			},
-			{
-				PublishedPort: 443,
-				ContainerPort: 443,
-				Protocol:      api.ProtocolTCP,
-				Mode:          api.PortModeHost,
-			},
-		}
-		assert.Equal(t, expectedPorts, deploy.Spec.Ports)
-	})
+	assert.Regexp(t, `^caddy:2\.\d+\.\d+$`, reference.FamiliarString(image))
 }

pkg/client/compose/deploy.go

@@ -55,7 +55,10 @@ func (d *Deployment) Plan(ctx context.Context) (deploy.SequenceOperation, error)
 			}
 
 			// TODO: properly handle depends_on conditions in the service deployment plan as the first operation.
-			deployment := deploy.NewDeployment(d.Client, spec, nil)
+			deployment, err := deploy.NewDeployment(ctx, 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 {
@@ -93,9 +96,6 @@ func (d *Deployment) ServiceSpec(name string) (api.ServiceSpec, error) {
 	//    - 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.
-	if err = d.SpecResolver.Resolve(&spec); err != nil {
-		return spec, fmt.Errorf("resolve service spec '%s': %w", name, err)
-	}
 
 	// TODO: maybe instantiate ImageResolver here based on PullPolicy of each service?
 

pkg/client/compose/project.go

@@ -18,7 +18,7 @@ func LoadProject(ctx context.Context, paths []string) (*types.Project, error) {
 		composecli.WithDotEnv,
 		// Get compose file path set by COMPOSE_FILE.
 		composecli.WithConfigFileEnv,
-		// If none was selected, get default compose.yaml file from current dir or parent folders.
+		// If none was selected, get default compose-ports-long.yaml file from current dir or parent folders.
 		composecli.WithDefaultConfigPath,
 		composecli.WithExtension(PortsExtensionKey, PortsSource{}),
 	)

pkg/client/deploy.go

@@ -1,12 +1,15 @@
 package client
 
 import (
+	"context"
 	"github.com/psviderski/uncloud/pkg/api"
 	"github.com/psviderski/uncloud/pkg/client/deploy"
 )
 
 // NewDeployment creates a new deployment for the given service specification.
 // If strategy is nil, a default deploy.RollingStrategy will be used.
-func (cli *Client) NewDeployment(spec api.ServiceSpec, strategy deploy.Strategy) *deploy.Deployment {
-	return deploy.NewDeployment(cli, spec, strategy)
+func (cli *Client) NewDeployment(
+	ctx context.Context, spec api.ServiceSpec, strategy deploy.Strategy,
+) (*deploy.Deployment, error) {
+	return deploy.NewDeployment(ctx, cli, spec, strategy)
 }

pkg/client/deploy/container.go

@@ -24,6 +24,8 @@ func CompareContainerToSpec(ctr api.Container, spec api.ServiceSpec) (ContainerS
 	}
 
 	// TODO: compare mutable properties such as memory or CPU limits when they are implemented.
+	
+	// TODO: compare ports
 
 	return ContainerUpToDate, nil
 }

pkg/client/deploy/deploy.go

@@ -10,6 +10,7 @@ import (
 
 type Client interface {
 	api.ContainerClient
+	api.DNSClient
 	api.MachineClient
 	api.ServiceClient
 }
@@ -17,11 +18,12 @@ type Client interface {
 // Deployment manages the process of creating or updating a service to match a desired state.
 // It coordinates the validation, planning, and execution of deployment operations.
 type Deployment struct {
-	Service  *api.Service
-	Spec     api.ServiceSpec
-	Strategy Strategy
-	cli      Client
-	plan     *Plan
+	Service      *api.Service
+	Spec         api.ServiceSpec
+	Strategy     Strategy
+	cli          Client
+	specResolver *ServiceSpecResolver
+	plan         *Plan
 }
 
 type Plan struct {
@@ -38,16 +40,27 @@ 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 {
+func NewDeployment(ctx context.Context, cli Client, spec api.ServiceSpec, strategy Strategy) (*Deployment, error) {
 	if strategy == nil {
 		strategy = &RollingStrategy{}
 	}
 
-	return &Deployment{
-		Spec:     spec,
-		Strategy: strategy,
-		cli:      cli,
+	clusterDomain, err := cli.GetDomain(ctx)
+	if err != nil && !errors.Is(err, api.ErrNotFound) {
+		return nil, fmt.Errorf("get cluster domain: %w", err)
 	}
+
+	specResolver := &ServiceSpecResolver{
+		// If the domain is not found (not reserved), an empty domain is used for the resolver.
+		ClusterDomain: clusterDomain,
+	}
+
+	return &Deployment{
+		Spec:         spec,
+		Strategy:     strategy,
+		cli:          cli,
+		specResolver: specResolver,
+	}, nil
 }
 
 // Plan returns a plan of operations to reconcile the service to the desired state.
@@ -57,12 +70,17 @@ func (d *Deployment) Plan(ctx context.Context) (Plan, error) {
 		return *d.plan, nil
 	}
 
-	// Validate the new spec before planning.
+	// Validate the user-provided spec before resolving it.
 	if err := d.Validate(ctx); err != nil {
 		return Plan{}, fmt.Errorf("invalid deployment: %w", err)
 	}
 
-	plan, err := d.Strategy.Plan(ctx, d.cli, d.Service, d.Spec)
+	resolvedSpec, err := d.specResolver.Resolve(d.Spec)
+	if err != nil {
+		return Plan{}, fmt.Errorf("resolve service spec: %w", err)
+	}
+
+	plan, err := d.Strategy.Plan(ctx, d.cli, d.Service, resolvedSpec)
 	if err != nil {
 		return Plan{}, fmt.Errorf("create plan using %s strategy: %w", d.Strategy.Type(), err)
 	}
@@ -76,9 +94,6 @@ func (d *Deployment) Validate(ctx context.Context) error {
 	if err := d.Spec.Validate(); err != nil {
 		return fmt.Errorf("invalid service spec: %w", err)
 	}
-	if d.Spec.Name == "" {
-		return errors.New("service name is required")
-	}
 
 	if d.Service == nil {
 		svc, err := d.cli.InspectService(ctx, d.Spec.Name)
@@ -96,10 +111,19 @@ func (d *Deployment) Validate(ctx context.Context) error {
 	if d.Service.Name != d.Spec.Name {
 		return errors.New("service name cannot be changed")
 	}
-	if d.Service.Mode != d.Spec.Mode {
+
+	// Resolve the default mode if not specified.
+	mode := d.Spec.Mode
+	if mode == "" {
+		mode = api.ServiceModeReplicated
+	}
+
+	if mode != d.Service.Mode {
 		return errors.New("service mode cannot be changed")
 	}
-	if d.Spec.Mode == api.ServiceModeReplicated && d.Spec.Replicas < 1 {
+	if mode == api.ServiceModeReplicated && d.Spec.Replicas < 1 {
+		// Scaling down to zero is not allowed as this would effectively remove the service without preserving
+		// its configuration, making it impossible to scale back up.
 		return errors.New("number of replicas must be at least 1")
 	}
 

pkg/client/deploy/resolver.go

@@ -19,11 +19,13 @@ type ServiceSpecResolver struct {
 }
 
 // Resolve transforms a service spec into its fully resolved form ready for deployment.
-func (r *ServiceSpecResolver) Resolve(spec *api.ServiceSpec) error {
+func (r *ServiceSpecResolver) Resolve(spec api.ServiceSpec) (api.ServiceSpec, error) {
 	if err := spec.Validate(); err != nil {
-		return fmt.Errorf("invalid service spec: %w", err)
+		return spec, fmt.Errorf("invalid service spec: %w", err)
 	}
 
+	spec = spec.Clone()
+
 	steps := []func(*api.ServiceSpec) error{
 		r.applyDefaults,
 		r.resolveServiceName,
@@ -32,12 +34,12 @@ func (r *ServiceSpecResolver) Resolve(spec *api.ServiceSpec) error {
 	}
 
 	for _, step := range steps {
-		if err := step(spec); err != nil {
-			return err
+		if err := step(&spec); err != nil {
+			return spec, err
 		}
 	}
 
-	return nil
+	return spec, nil
 }
 
 func (r *ServiceSpecResolver) applyDefaults(spec *api.ServiceSpec) error {
@@ -52,6 +54,7 @@ func (r *ServiceSpecResolver) applyDefaults(spec *api.ServiceSpec) error {
 	return nil
 }
 
+// resolveServiceName generates a service name from the image when not provided.
 func (r *ServiceSpecResolver) resolveServiceName(spec *api.ServiceSpec) error {
 	if spec.Name != "" {
 		return nil

pkg/client/service.go

@@ -17,25 +17,6 @@ import (
 	"sync"
 )
 
-func (cli *Client) PrepareDeploymentSpec(ctx context.Context, spec api.ServiceSpec) (api.ServiceSpec, error) {
-	domain, err := cli.GetDomain(ctx)
-	if err != nil && !errors.Is(err, api.ErrNotFound) {
-		return spec, fmt.Errorf("get cluster domain: %w", err)
-	}
-
-	resolver := deploy.ServiceSpecResolver{
-		// If the domain is not found (not reserved), an empty domain is used for the resolver.
-		ClusterDomain: domain,
-		// TODO: provide an image resolver.
-	}
-
-	if err = resolver.Resolve(&spec); err != nil {
-		return spec, err
-	}
-
-	return spec, nil
-}
-
 type RunServiceResponse struct {
 	ID   string
 	Name string
@@ -61,15 +42,18 @@ func (cli *Client) RunService(
 		}
 	}
 
-	var err error
-	if spec, err = cli.PrepareDeploymentSpec(ctx, spec); err != nil {
-		return resp, fmt.Errorf("prepare service spec ready for deployment: %w", err)
+	deployment, err := cli.NewDeployment(ctx, spec, &deploy.RollingStrategy{MachineFilter: filter})
+	if err != nil {
+		return resp, fmt.Errorf("create deployment: %w", err)
+	}
+
+	plan, err := deployment.Plan(ctx)
+	if err != nil {
+		return resp, fmt.Errorf("plan deployment: %w", err)
 	}
 
 	err = progress.RunWithTitle(ctx, func(ctx context.Context) error {
-		deployment := cli.NewDeployment(spec, &deploy.RollingStrategy{MachineFilter: filter})
-
-		plan, err := deployment.Run(ctx)
+		_, err = deployment.Run(ctx)
 		if err != nil {
 			return err
 		}
@@ -78,7 +62,7 @@ func (cli *Client) RunService(
 		resp.Name = plan.ServiceName
 
 		return nil
-	}, cli.progressOut(), fmt.Sprintf("Running service %s (%s mode)", spec.Name, spec.Mode))
+	}, cli.progressOut(), fmt.Sprintf("Running service %s (%s mode)", plan.ServiceName, spec.Mode))
 
 	return resp, err
 }

test/e2e/assert.go

@@ -11,10 +11,12 @@ import (
 
 func assertServiceMatchesSpec(t *testing.T, svc api.Service, spec api.ServiceSpec) {
 	assert.Equal(t, spec.Name, svc.Name)
-	assert.Equal(t, spec.Mode, svc.Mode)
 
 	if svc.Mode == api.ServiceModeReplicated {
+		assert.Contains(t, []string{"", api.ServiceModeReplicated}, spec.Mode)
 		assert.Len(t, svc.Containers, int(spec.Replicas), "Expected %d replicas", spec.Replicas)
+	} else {
+		assert.Equal(t, spec.Mode, svc.Mode)
 	}
 
 	for _, mc := range svc.Containers {

test/e2e/service_test.go

@@ -37,10 +37,10 @@ func TestDeployment(t *testing.T) {
 	cli, err := c.Machines[0].Connect(ctx)
 	require.NoError(t, err)
 
-	t.Run("global", func(t *testing.T) {
+	t.Run("global auto-generated name", func(t *testing.T) {
 		t.Parallel()
 
-		name := "global-deployment"
+		name := "" // auto-generated and updated
 		t.Cleanup(func() {
 			err := cli.RemoveService(ctx, name)
 			if !errors.Is(err, api.ErrNotFound) {
@@ -52,26 +52,30 @@ func TestDeployment(t *testing.T) {
 		})
 
 		spec := api.ServiceSpec{
-			Name: name,
 			Mode: api.ServiceModeGlobal,
 			Container: api.ContainerSpec{
 				Image: "portainer/pause:latest",
 			},
 		}
-		deployment := cli.NewDeployment(spec, nil)
+		deployment, err := cli.NewDeployment(ctx, spec, nil)
+		require.NoError(t, err)
+
 		err = deployment.Validate(ctx)
 		require.NoError(t, err)
 
 		plan, err := deployment.Plan(ctx)
 		require.NoError(t, err)
 		assert.NotEmpty(t, plan.ServiceID)
-		assert.Equal(t, name, plan.ServiceName)
+		assert.NotEmpty(t, plan.ServiceName)
 		assert.Len(t, plan.SequenceOperation.Operations, 3) // 3 run
 
 		runPlan, err := deployment.Run(ctx)
 		require.NoError(t, err)
 		assert.Equal(t, plan, runPlan)
 
+		name = plan.ServiceName
+		spec.Name = name // update spec to match the service and assert with assertServiceMatchesSpec
+
 		svc, err := cli.InspectService(ctx, name)
 		require.NoError(t, err)
 		assertServiceMatchesSpec(t, svc, spec)
@@ -98,7 +102,9 @@ func TestDeployment(t *testing.T) {
 				},
 			},
 		}
-		deployment = cli.NewDeployment(specWithPort, nil)
+		deployment, err = cli.NewDeployment(ctx, specWithPort, nil)
+		require.NoError(t, err)
+
 		plan, err = deployment.Plan(ctx)
 		require.NoError(t, err)
 		assert.Len(t, plan.SequenceOperation.Operations, 6) // 3 run + 3 remove
@@ -137,7 +143,9 @@ func TestDeployment(t *testing.T) {
 				},
 			},
 		}
-		deployment = cli.NewDeployment(specWithPortAndInit, nil)
+		deployment, err = cli.NewDeployment(ctx, specWithPortAndInit, nil)
+		require.NoError(t, err)
+
 		plan, err = deployment.Plan(ctx)
 		require.NoError(t, err)
 		assert.Len(t, plan.SequenceOperation.Operations, 9) // 3 stop + 3 run + 3 remove
@@ -159,7 +167,9 @@ func TestDeployment(t *testing.T) {
 		// Deploying the same spec should be a no-op.
 		initialContainers = containers
 
-		deployment = cli.NewDeployment(specWithPortAndInit, nil)
+		deployment, err = cli.NewDeployment(ctx, specWithPortAndInit, nil)
+		require.NoError(t, err)
+
 		plan, err = deployment.Plan(ctx)
 		require.NoError(t, err)
 		assert.Len(t, plan.SequenceOperation.Operations, 0) // no-op
@@ -194,7 +204,9 @@ func TestDeployment(t *testing.T) {
 			},
 		}
 
-		deployment := cli.NewDeployment(spec, nil)
+		deployment, err := cli.NewDeployment(ctx, spec, nil)
+		require.NoError(t, err)
+
 		_, err = deployment.Run(ctx)
 		require.NoError(t, err)
 
@@ -218,7 +230,9 @@ func TestDeployment(t *testing.T) {
 		}
 		strategy := &deploy.RollingStrategy{MachineFilter: filter}
 
-		deployment = cli.NewDeployment(specWithInit, strategy)
+		deployment, err = cli.NewDeployment(ctx, specWithInit, strategy)
+		require.NoError(t, err)
+
 		_, err = deployment.Run(ctx)
 		require.NoError(t, err)
 
@@ -264,7 +278,9 @@ func TestDeployment(t *testing.T) {
 			},
 		}
 
-		deployment = cli.NewDeployment(specWithPort, nil)
+		deployment, err = cli.NewDeployment(ctx, specWithPort, nil)
+		require.NoError(t, err)
+
 		_, err = deployment.Run(ctx)
 		require.NoError(t, err)
 
@@ -294,7 +310,7 @@ func TestDeployment(t *testing.T) {
 			}
 		})
 
-		deployment, err := cli.NewCaddyDeployment("", nil)
+		deployment, err := cli.NewCaddyDeployment(ctx, "", nil)
 		require.NoError(t, err)
 
 		_, err = deployment.Run(ctx)
@@ -346,8 +362,9 @@ func TestDeployment(t *testing.T) {
 			return m.Name == c.Machines[0].Name
 		}
 
-		deployment, err := cli.NewCaddyDeployment("", filter)
+		deployment, err := cli.NewCaddyDeployment(ctx, "", filter)
 		require.NoError(t, err)
+		image := deployment.Spec.Container.Image
 
 		_, err = deployment.Run(ctx)
 		require.NoError(t, err)
@@ -366,7 +383,7 @@ func TestDeployment(t *testing.T) {
 			return m.Name == c.Machines[0].Name || m.Name == c.Machines[2].Name
 		}
 
-		deployment, err = cli.NewCaddyDeployment("", filter)
+		deployment, err = cli.NewCaddyDeployment(ctx, image, filter)
 		require.NoError(t, err)
 
 		_, err = deployment.Run(ctx)
@@ -411,7 +428,9 @@ func TestDeployment(t *testing.T) {
 			Replicas: 2,
 		}
 
-		deployment := cli.NewDeployment(spec, nil)
+		deployment, err := cli.NewDeployment(ctx, spec, nil)
+		require.NoError(t, err)
+
 		err = deployment.Validate(ctx)
 		require.NoError(t, err)
 
@@ -440,7 +459,9 @@ func TestDeployment(t *testing.T) {
 		updatedSpec := spec
 		updatedSpec.Container.Init = &init
 
-		deployment = cli.NewDeployment(updatedSpec, nil)
+		deployment, err = cli.NewDeployment(ctx, updatedSpec, nil)
+		require.NoError(t, err)
+
 		plan, err = deployment.Plan(ctx)
 		require.NoError(t, err)
 		assert.Len(t, plan.Operations, 4, "Expected 2 run + 2 remove operations")
@@ -467,7 +488,9 @@ func TestDeployment(t *testing.T) {
 		threeReplicaSpec := updatedSpec
 		threeReplicaSpec.Replicas = 3
 
-		deployment = cli.NewDeployment(threeReplicaSpec, nil)
+		deployment, err = cli.NewDeployment(ctx, threeReplicaSpec, nil)
+		require.NoError(t, err)
+
 		plan, err = deployment.Plan(ctx)
 		require.NoError(t, err)
 		assert.Len(t, plan.Operations, 1, "Expected 1 run operation")
@@ -492,7 +515,9 @@ func TestDeployment(t *testing.T) {
 		fourReplicaSpec.Container.Command = []string{"updated"}
 		fourReplicaSpec.Replicas = 5
 
-		deployment = cli.NewDeployment(fourReplicaSpec, nil)
+		deployment, err = cli.NewDeployment(ctx, fourReplicaSpec, nil)
+		require.NoError(t, err)
+
 		plan, err = deployment.Plan(ctx)
 		require.NoError(t, err)
 		assert.Len(t, plan.Operations, 8, "Expected 5 run + 3 remove operations")
@@ -519,7 +544,9 @@ func TestDeployment(t *testing.T) {
 		// 5. Redeploy the exact same spec and verify it's a noop.
 		initialContainers = containers // Reset container tracking.
 
-		deployment = cli.NewDeployment(fourReplicaSpec, nil)
+		deployment, err = cli.NewDeployment(ctx, fourReplicaSpec, nil)
+		require.NoError(t, err)
+
 		plan, err = deployment.Plan(ctx)
 		require.NoError(t, err)
 		assert.Empty(t, plan.Operations, "Redeploying the same spec should be a no-op")
@@ -560,7 +587,9 @@ func TestDeployment(t *testing.T) {
 		}
 		strategy := &deploy.RollingStrategy{MachineFilter: machine01Filter}
 
-		deployment := cli.NewDeployment(spec, strategy)
+		deployment, err := cli.NewDeployment(ctx, spec, strategy)
+		require.NoError(t, err)
+
 		_, err = deployment.Run(ctx)
 		require.NoError(t, err)
 
@@ -588,7 +617,9 @@ func TestDeployment(t *testing.T) {
 		}
 
 		strategy = &deploy.RollingStrategy{MachineFilter: machine2Filter}
-		deployment = cli.NewDeployment(spec, strategy)
+		deployment, err = cli.NewDeployment(ctx, spec, strategy)
+		require.NoError(t, err)
+
 		_, err = deployment.Run(ctx)
 		require.NoError(t, err)
 
@@ -756,8 +787,16 @@ func TestServiceLifecycle(t *testing.T) {
 		assert.Contains(t, ctr.NetworkSettings.Networks, machinedocker.NetworkName)
 	})
 
-	// TODO: create container invalid spec.
-	//  - service Name is required
+	t.Run("create container invalid service", func(t *testing.T) {
+		t.Parallel()
+
+		invalidIDs := []string{"", "invalid", "651aef23ae90"}
+
+		for _, invalidID := range invalidIDs {
+			_, err := cli.CreateContainer(ctx, invalidID, api.ServiceSpec{}, c.Machines[0].Name)
+			require.ErrorContains(t, err, "invalid service ID")
+		}
+	})
 
 	t.Run("container lifecycle", func(t *testing.T) {
 		t.Parallel()