Add --host flag to docker model install-runner command

Co-authored-by: ericcurtin <1694275+ericcurtin@users.noreply.github.com>

Author: Copilot

cmd/cli/commands/install-runner.go

@@ -127,12 +127,13 @@ func ensureStandaloneRunnerAvailable(ctx context.Context, printer standalone.Sta
 
 	// Create the model runner container.
 	port := uint16(standalone.DefaultControllerPortMoby)
+	host := "127.0.0.1"
 	environment := "moby"
 	if engineKind == types.ModelRunnerEngineKindCloud {
 		port = standalone.DefaultControllerPortCloud
 		environment = "cloud"
 	}
-	if err := standalone.CreateControllerContainer(ctx, dockerClient, port, environment, false, gpu, modelStorageVolume, printer, engineKind); err != nil {
+	if err := standalone.CreateControllerContainer(ctx, dockerClient, port, host, environment, false, gpu, modelStorageVolume, printer, engineKind); err != nil {
 		return nil, fmt.Errorf("unable to initialize standalone model runner container: %w", err)
 	}
 
@@ -159,6 +160,7 @@ func ensureStandaloneRunnerAvailable(ctx context.Context, printer standalone.Sta
 
 func newInstallRunner() *cobra.Command {
 	var port uint16
+	var host string
 	var gpuMode string
 	var doNotTrack bool
 	c := &cobra.Command{
@@ -245,7 +247,7 @@ func newInstallRunner() *cobra.Command {
 				return fmt.Errorf("unable to initialize standalone model storage: %w", err)
 			}
 			// Create the model runner container.
-			if err := standalone.CreateControllerContainer(cmd.Context(), dockerClient, port, environment, doNotTrack, gpu, modelStorageVolume, cmd, engineKind); err != nil {
+			if err := standalone.CreateControllerContainer(cmd.Context(), dockerClient, port, host, environment, doNotTrack, gpu, modelStorageVolume, cmd, engineKind); err != nil {
 				return fmt.Errorf("unable to initialize standalone model runner container: %w", err)
 			}
 
@@ -256,6 +258,7 @@ func newInstallRunner() *cobra.Command {
 	}
 	c.Flags().Uint16Var(&port, "port", 0,
 		"Docker container port for Docker Model Runner (default: 12434 for Docker CE, 12435 for Cloud mode)")
+	c.Flags().StringVar(&host, "host", "127.0.0.1", "Host address to bind Docker Model Runner")
 	c.Flags().StringVar(&gpuMode, "gpu", "auto", "Specify GPU support (none|auto|cuda)")
 	c.Flags().BoolVar(&doNotTrack, "do-not-track", false, "Do not track models usage in Docker Model Runner")
 	return c

cmd/cli/docs/reference/model_install-runner.md

@@ -5,11 +5,12 @@ Install Docker Model Runner (Docker Engine only)
 
 ### Options
 
-| Name             | Type     | Default | Description                                                                                        |
-|:-----------------|:---------|:--------|:---------------------------------------------------------------------------------------------------|
-| `--do-not-track` | `bool`   |         | Do not track models usage in Docker Model Runner                                                   |
-| `--gpu`          | `string` | `auto`  | Specify GPU support (none\|auto\|cuda)                                                             |
-| `--port`         | `uint16` | `0`     | Docker container port for Docker Model Runner (default: 12434 for Docker CE, 12435 for Cloud mode) |
+| Name             | Type     | Default     | Description                                                                                        |
+|:-----------------|:---------|:------------|:---------------------------------------------------------------------------------------------------|
+| `--do-not-track` | `bool`   |             | Do not track models usage in Docker Model Runner                                                   |
+| `--gpu`          | `string` | `auto`      | Specify GPU support (none\|auto\|cuda)                                                             |
+| `--host`         | `string` | `127.0.0.1` | Host address to bind Docker Model Runner                                                           |
+| `--port`         | `uint16` | `0`         | Docker container port for Docker Model Runner (default: 12434 for Docker CE, 12435 for Cloud mode) |
 
 
 <!---MARKER_GEN_END-->

cmd/cli/pkg/standalone/containers.go

@@ -218,7 +218,7 @@ func ensureContainerStarted(ctx context.Context, dockerClient client.ContainerAP
 }
 
 // CreateControllerContainer creates and starts a controller container.
-func CreateControllerContainer(ctx context.Context, dockerClient *client.Client, port uint16, environment string, doNotTrack bool, gpu gpupkg.GPUSupport, modelStorageVolume string, printer StatusPrinter, engineKind types.ModelRunnerEngineKind) error {
+func CreateControllerContainer(ctx context.Context, dockerClient *client.Client, port uint16, host string, environment string, doNotTrack bool, gpu gpupkg.GPUSupport, modelStorageVolume string, printer StatusPrinter, engineKind types.ModelRunnerEngineKind) error {
 	// Determine the target image.
 	var imageName string
 	switch gpu {
@@ -260,11 +260,14 @@ func CreateControllerContainer(ctx context.Context, dockerClient *client.Client,
 			Name: "always",
 		},
 	}
-	portBindings := []nat.PortBinding{{HostIP: "127.0.0.1", HostPort: portStr}}
+	portBindings := []nat.PortBinding{{HostIP: host, HostPort: portStr}}
 	if os.Getenv("_MODEL_RUNNER_TREAT_DESKTOP_AS_MOBY") != "1" {
 		// Don't bind the bridge gateway IP if we're treating Docker Desktop as Moby.
-		if bridgeGatewayIP, err := determineBridgeGatewayIP(ctx, dockerClient); err == nil && bridgeGatewayIP != "" {
-			portBindings = append(portBindings, nat.PortBinding{HostIP: bridgeGatewayIP, HostPort: portStr})
+		// Only add bridge gateway IP binding if host is 127.0.0.1
+		if host == "127.0.0.1" {
+			if bridgeGatewayIP, err := determineBridgeGatewayIP(ctx, dockerClient); err == nil && bridgeGatewayIP != "" {
+				portBindings = append(portBindings, nat.PortBinding{HostIP: bridgeGatewayIP, HostPort: portStr})
+			}
 		}
 	}
 	hostConfig.PortBindings = nat.PortMap{