Fix server port when network mode is host

This is a hack.

Author: blkt

pkg/container/docker/client.go

@@ -291,20 +291,22 @@ func (c *Client) DeployWorkload(
 		return 0, nil
 	}
 
+	firstPortInt, err := extractFirstPort(options)
+	if err != nil {
+		return 0, err // extractFirstPort already wraps the error with context.
+	}
 	if isolateNetwork {
 		// just extract the first exposed port
-		firstPortInt, err := extractFirstPort(options)
-		if err != nil {
-			return 0, err // extractFirstPort already wraps the error with context.
-		}
 		hostPort, err = c.ops.createIngressContainer(ctx, name, firstPortInt, attachStdio, externalEndpointsConfig,
 			permissionProfile.Network)
 		if err != nil {
 			return 0, fmt.Errorf("failed to create ingress container: %v", err)
 		}
 	}
 
-	return hostPort, nil
+	finalPort := calculateFinalPort(hostPort, firstPortInt, permissionConfig.NetworkMode)
+
+	return finalPort, nil
 }
 
 // ListWorkloads lists workloads
@@ -1314,6 +1316,9 @@ func (c *Client) createContainer(
 	if err != nil {
 		return "", NewContainerError(err, "", fmt.Sprintf("failed to create container: %v", err))
 	}
+	if resp.Warnings != nil {
+		logger.Debugf("Container creation warnings: %v", resp.Warnings)
+	}
 
 	// Start the container
 	err = c.api.ContainerStart(ctx, resp.ID, container.StartOptions{})
@@ -1386,10 +1391,21 @@ func (c *Client) createDnsContainer(ctx context.Context, dnsContainerName string
 	return dnsContainerId, dnsContainerIP, nil
 }
 
-func (c *Client) createMcpContainer(ctx context.Context, name string, networkName string, image string, command []string,
-	envVars map[string]string, labels map[string]string, attachStdio bool, permissionConfig *runtime.PermissionConfig,
-	additionalDNS string, exposedPorts map[string]struct{}, portBindings map[string][]runtime.PortBinding,
-	isolateNetwork bool) error {
+func (c *Client) createMcpContainer(
+	ctx context.Context,
+	name string,
+	networkName string,
+	image string,
+	command []string,
+	envVars map[string]string,
+	labels map[string]string,
+	attachStdio bool,
+	permissionConfig *runtime.PermissionConfig,
+	additionalDNS string,
+	exposedPorts map[string]struct{},
+	portBindings map[string][]runtime.PortBinding,
+	isolateNetwork bool,
+) error {
 	// Create container configuration
 	config := &container.Config{
 		Image:        image,

pkg/container/docker/client_final_port_linux.go

@@ -0,0 +1,10 @@
+//go:build linux
+
+package docker
+
+func calculateFinalPort(hostPort int, firstPortInt int, networkName string) int {
+	if networkName == "host" {
+		return firstPortInt
+	}
+	return hostPort
+}

pkg/container/docker/client_final_port_other.go

@@ -0,0 +1,7 @@
+//go:build !linux
+
+package docker
+
+func calculateFinalPort(hostPort int, _ int, _ string) int {
+	return hostPort
+}

pkg/transport/http.go

@@ -321,8 +321,12 @@ func (t *HTTPTransport) Start(ctx context.Context) error {
 
 	// Create the transparent proxy
 	t.proxy = transparent.NewTransparentProxy(
-		t.host, t.proxyPort, t.containerName, targetURI,
-		t.prometheusHandler, t.authInfoHandler,
+		t.host,
+		t.proxyPort,
+		t.containerName,
+		targetURI,
+		t.prometheusHandler,
+		t.authInfoHandler,
 		t.remoteURL == "",
 		t.remoteURL != "",
 		string(t.transportType),