Honor recorded SSH options for exec

container.go

@@ -31,6 +31,10 @@ type Container struct {
 	Memory int `json:"memory,omitempty"`
 	// CPUs is the number of CPUs allocated.
 	CPUs int `json:"cpus,omitempty"`
+	// SSHPort is the host port mapped to guest SSH.
+	SSHPort int `json:"ssh_port,omitempty"`
+	// SSHKey is the private key used for SSH exec commands.
+	SSHKey string `json:"ssh_key,omitempty"`
 }
 
 // Status represents the state of a container.

linuxkit.go

@@ -142,6 +142,8 @@ func (m *LinuxKitManager) Run(ctx context.Context, image string, opts RunOptions
 		Ports:     opts.Ports,
 		Memory:    opts.Memory,
 		CPUs:      opts.CPUs,
+		SSHPort:   opts.SSHPort,
+		SSHKey:    opts.SSHKey,
 	}
 
 	if opts.Detach {
@@ -421,8 +423,11 @@ func (m *LinuxKitManager) Exec(ctx context.Context, id string, cmd []string) err
 		return coreerr.E("LinuxKitManager.Exec", "container is not running: "+id, nil)
 	}
 
-	// Default SSH port
-	sshPort := 2222
+	// Use the container's configured SSH port, falling back to the default.
+	sshPort := container.SSHPort
+	if sshPort <= 0 {
+		sshPort = 2222
+	}
 
 	// Build SSH command
 	sshArgs := []string{
@@ -430,8 +435,11 @@ func (m *LinuxKitManager) Exec(ctx context.Context, id string, cmd []string) err
 		"-o", "StrictHostKeyChecking=yes",
 		"-o", "UserKnownHostsFile=~/.core/known_hosts",
 		"-o", "LogLevel=ERROR",
-		"root@localhost",
 	}
+	if container.SSHKey != "" {
+		sshArgs = append(sshArgs, "-i", container.SSHKey)
+	}
+	sshArgs = append(sshArgs, "root@localhost")
 	sshArgs = append(sshArgs, cmd...)
 
 	sshCmd := proc.NewCommandContext(ctx, "ssh", sshArgs...)

linuxkit_test.go

@@ -2,6 +2,8 @@ package container
 
 import (
 	"context"
+	"os"
+	"strings"
 	"syscall"
 	"testing"
 	"time"
@@ -357,6 +359,51 @@ func TestLinuxKitManager_Exec_NotRunning_Bad(t *testing.T) {
 	assert.Contains(t, err.Error(), "not running")
 }
 
+func TestLinuxKitManager_Exec_UsesContainerSSHOptions_Good(t *testing.T) {
+	manager, _, tmpDir := newTestManager(t)
+
+	capturePath := coreutil.JoinPath(tmpDir, "ssh-args.txt")
+	sshPath := coreutil.JoinPath(tmpDir, "ssh")
+	script := "#!/bin/sh\nprintf '%s\\n' \"$@\" > \"" + capturePath + "\"\n"
+	require.NoError(t, io.Local.Write(sshPath, script))
+	require.NoError(t, os.Chmod(sshPath, 0o755))
+
+	oldPath := os.Getenv("PATH")
+	t.Setenv("PATH", tmpDir+":"+oldPath)
+
+	container := &Container{
+		ID:      "abc12345",
+		Status:  StatusRunning,
+		SSHPort: 2200,
+		SSHKey:  "/tmp/test-id_ed25519",
+	}
+	_ = manager.State().Add(container)
+
+	ctx := context.Background()
+	err := manager.Exec(ctx, "abc12345", []string{"ls", "-la"})
+	require.NoError(t, err)
+
+	data, err := io.Local.Read(capturePath)
+	require.NoError(t, err)
+	args := strings.Split(strings.TrimSpace(data), "\n")
+
+	assert.Equal(t, []string{
+		"-p",
+		"2200",
+		"-o",
+		"StrictHostKeyChecking=yes",
+		"-o",
+		"UserKnownHostsFile=~/.core/known_hosts",
+		"-o",
+		"LogLevel=ERROR",
+		"-i",
+		"/tmp/test-id_ed25519",
+		"root@localhost",
+		"ls",
+		"-la",
+	}, args)
+}
+
 func TestLinuxKit_DetectImageFormat_Good(t *testing.T) {
 	tests := []struct {
 		path   string