Add master integration to CLI deploy and undeploy

- CLIConfig gains optional [master] section with address field
- dialMaster() creates McpMasterServiceClient (same TLS/token pattern)
- deploy: routes through master when [master] configured, --direct
  flag bypasses master for v1-style agent deployment
- undeploy: same master/direct routing pattern
- Master responses show per-step results (deploy, dns, edge)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

cmd/mcp/deploy.go

@@ -15,6 +15,8 @@ import (
 )
 
 func deployCmd() *cobra.Command {
+	var direct bool
+
 	cmd := &cobra.Command{
 		Use:   "deploy <service>[/<component>]",
 		Short: "Deploy service from service definition",
@@ -40,6 +42,12 @@ func deployCmd() *cobra.Command {
 
 			spec := servicedef.ToProto(def)
 
+			// Route through master if configured and not in direct mode.
+			if cfg.Master != nil && cfg.Master.Address != "" && !direct {
+				return deployViaMaster(cfg, spec)
+			}
+
+			// Direct mode: deploy to agent.
 			address, err := findNodeAddress(cfg, def.Node)
 			if err != nil {
 				return err
@@ -64,9 +72,48 @@ func deployCmd() *cobra.Command {
 		},
 	}
 	cmd.Flags().StringP("file", "f", "", "service definition file")
+	cmd.Flags().BoolVar(&direct, "direct", false, "bypass master, deploy directly to agent (v1 mode)")
 	return cmd
 }
 
+func deployViaMaster(cfg *config.CLIConfig, spec *mcpv1.ServiceSpec) error {
+	client, conn, err := dialMaster(cfg.Master.Address, cfg)
+	if err != nil {
+		return fmt.Errorf("dial master: %w", err)
+	}
+	defer func() { _ = conn.Close() }()
+
+	resp, err := client.Deploy(context.Background(), &mcpv1.MasterDeployRequest{
+		Service: spec,
+	})
+	if err != nil {
+		return fmt.Errorf("master deploy: %w", err)
+	}
+
+	fmt.Printf("  %s: placed on %s\n", spec.GetName(), resp.GetNode())
+	if r := resp.GetDeployResult(); r != nil {
+		printStepResult("deploy", r)
+	}
+	if r := resp.GetDnsResult(); r != nil {
+		printStepResult("dns", r)
+	}
+	if r := resp.GetEdgeRouteResult(); r != nil {
+		printStepResult("edge", r)
+	}
+	if !resp.GetSuccess() {
+		return fmt.Errorf("deploy failed: %s", resp.GetError())
+	}
+	return nil
+}
+
+func printStepResult(name string, r *mcpv1.StepResult) {
+	if r.GetSuccess() {
+		fmt.Printf("  %s: ok\n", name)
+	} else {
+		fmt.Printf("  %s: FAILED — %s\n", name, r.GetError())
+	}
+}
+
 // parseServiceArg splits a "service/component" argument into its parts.
 func parseServiceArg(arg string) (service, component string) {
 	parts := strings.SplitN(arg, "/", 2)
@@ -127,6 +174,7 @@ func serviceSpecFromInfo(info *mcpv1.ServiceInfo) *mcpv1.ServiceSpec {
 	spec := &mcpv1.ServiceSpec{
 		Name:    info.GetName(),
 		Active:  info.GetActive(),
+		Comment: info.GetComment(),
 	}
 	for _, c := range info.GetComponents() {
 		spec.Components = append(spec.Components, &mcpv1.ComponentSpec{

cmd/mcp/dial.go

@@ -52,6 +52,43 @@ func dialAgent(address string, cfg *config.CLIConfig) (mcpv1.McpAgentServiceClie
 	return mcpv1.NewMcpAgentServiceClient(conn), conn, nil
 }
 
+// dialMaster connects to the master at the given address and returns a gRPC
+// client for the McpMasterService.
+func dialMaster(address string, cfg *config.CLIConfig) (mcpv1.McpMasterServiceClient, *grpc.ClientConn, error) {
+	tlsConfig := &tls.Config{
+		MinVersion: tls.VersionTLS13,
+	}
+
+	if cfg.MCIAS.CACert != "" {
+		caCert, err := os.ReadFile(cfg.MCIAS.CACert) //nolint:gosec // trusted config path
+		if err != nil {
+			return nil, nil, fmt.Errorf("read CA cert %q: %w", cfg.MCIAS.CACert, err)
+		}
+		pool := x509.NewCertPool()
+		if !pool.AppendCertsFromPEM(caCert) {
+			return nil, nil, fmt.Errorf("invalid CA cert %q", cfg.MCIAS.CACert)
+		}
+		tlsConfig.RootCAs = pool
+	}
+
+	token, err := loadBearerToken(cfg)
+	if err != nil {
+		return nil, nil, fmt.Errorf("load token: %w", err)
+	}
+
+	conn, err := grpc.NewClient(
+		address,
+		grpc.WithTransportCredentials(credentials.NewTLS(tlsConfig)),
+		grpc.WithUnaryInterceptor(tokenInterceptor(token)),
+		grpc.WithStreamInterceptor(streamTokenInterceptor(token)),
+	)
+	if err != nil {
+		return nil, nil, fmt.Errorf("dial master %q: %w", address, err)
+	}
+
+	return mcpv1.NewMcpMasterServiceClient(conn), conn, nil
+}
+
 // tokenInterceptor returns a gRPC client interceptor that attaches the
 // bearer token to outgoing RPC metadata.
 func tokenInterceptor(token string) grpc.UnaryClientInterceptor {

cmd/mcp/undeploy.go

@@ -13,7 +13,9 @@ import (
 )
 
 func undeployCmd() *cobra.Command {
-	return &cobra.Command{
+	var direct bool
+
+	cmd := &cobra.Command{
 		Use:   "undeploy <service>",
 		Short: "Fully undeploy a service: remove routes, DNS, certs, and containers",
 		Args:  cobra.ExactArgs(1),
@@ -38,6 +40,11 @@ func undeployCmd() *cobra.Command {
 				return fmt.Errorf("write service def: %w", err)
 			}
 
+			// Route through master if configured and not in direct mode.
+			if cfg.Master != nil && cfg.Master.Address != "" && !direct {
+				return undeployViaMaster(cfg, serviceName)
+			}
+
 			address, err := findNodeAddress(cfg, def.Node)
 			if err != nil {
 				return err
@@ -60,4 +67,28 @@ func undeployCmd() *cobra.Command {
 			return nil
 		},
 	}
+	cmd.Flags().BoolVar(&direct, "direct", false, "bypass master, undeploy directly via agent")
+	return cmd
+}
+
+func undeployViaMaster(cfg *config.CLIConfig, serviceName string) error {
+	client, conn, err := dialMaster(cfg.Master.Address, cfg)
+	if err != nil {
+		return fmt.Errorf("dial master: %w", err)
+	}
+	defer func() { _ = conn.Close() }()
+
+	resp, err := client.Undeploy(context.Background(), &mcpv1.MasterUndeployRequest{
+		ServiceName: serviceName,
+	})
+	if err != nil {
+		return fmt.Errorf("master undeploy: %w", err)
+	}
+
+	if resp.GetSuccess() {
+		fmt.Printf("  %s: undeployed\n", serviceName)
+	} else {
+		return fmt.Errorf("undeploy failed: %s", resp.GetError())
+	}
+	return nil
 }

internal/config/cli.go

@@ -15,6 +15,14 @@ type CLIConfig struct {
 	MCIAS    MCIASConfig      `toml:"mcias"`
 	Auth     AuthConfig       `toml:"auth"`
 	Nodes    []NodeConfig     `toml:"nodes"`
+	Master   *CLIMasterConfig `toml:"master,omitempty"`
+}
+
+// CLIMasterConfig holds the optional master connection settings.
+// When configured, deploy/undeploy/status go through the master
+// instead of directly to agents.
+type CLIMasterConfig struct {
+	Address string `toml:"address"` // master gRPC address (e.g. "100.95.252.120:9555")
 }
 
 // BuildConfig holds settings for building container images.