Once the Vm has been created, us the VBox setting

there's no point ssh-ing to the default port if the vm was set up
differently.

Author: SvenDowideit

cmds.go

@@ -224,7 +224,7 @@ func cmdUp() int {
 	}
 
 	logf("Waiting for SSH server to start...")
-	addr := fmt.Sprintf("localhost:%d", B2D.SSHPort)
+	addr := fmt.Sprintf("localhost:%d", m.SSHPort)
 	const n = 10
 	// Try to connect to the SSH 10 times at 3 sec interval before giving up.
 	if err := read(addr, n, 3*time.Second); err != nil {
@@ -241,9 +241,9 @@ func cmdUp() int {
 		logf("to SSH into the VM instead.")
 	default:
 		// Check if $DOCKER_HOST ENV var is properly configured.
-		if os.Getenv("DOCKER_HOST") != fmt.Sprintf("tcp://localhost:%d", B2D.DockerPort) {
+		if os.Getenv("DOCKER_HOST") != fmt.Sprintf("tcp://localhost:%d", m.DockerPort) {
 			logf("To connect the Docker client to the Docker daemon, please set:")
-			logf("    export DOCKER_HOST=tcp://localhost:%d", B2D.DockerPort)
+			logf("    export DOCKER_HOST=tcp://localhost:%d", m.DockerPort)
 		}
 	}
 	return 0
@@ -400,7 +400,7 @@ func cmdSSH() int {
 	if err := cmd(B2D.SSH,
 		"-o", "StrictHostKeyChecking=no",
 		"-o", "UserKnownHostsFile=/dev/null",
-		"-p", fmt.Sprintf("%d", B2D.SSHPort),
+		"-p", fmt.Sprintf("%d", m.SSHPort),
 		"-i", B2D.SSHKey,
 		"docker@localhost",
 		strings.Join(os.Args[i:], " "),

virtualbox/machine.go

@@ -66,6 +66,8 @@ type Machine struct {
 	OSType     string
 	Flag       Flag
 	BootOrder  []string // max 4 slots, each in {none|floppy|dvd|disk|net}
+	DockerPort uint
+	SSHPort    uint
 }
 
 // Refresh reloads the machine information.
@@ -233,6 +235,22 @@ func GetMachine(id string) (*Machine, error) {
 		case "CfgFile":
 			m.CfgFile = val
 			m.BaseFolder = filepath.Dir(val)
+		case "Forwarding(0)":
+			// Forwarding(0)="docker,tcp,127.0.0.1,5555,,4243"
+			vals := strings.Split(val, ",")
+			n, err := strconv.ParseUint(vals[3], 10, 32)
+			if err != nil {
+				return nil, err
+			}
+			m.DockerPort = uint(n)
+		case "Forwarding(1)":
+			// Forwarding(1)="ssh,tcp,127.0.0.1,2222,,22"
+			vals := strings.Split(val, ",")
+			n, err := strconv.ParseUint(vals[3], 10, 32)
+			if err != nil {
+				return nil, err
+			}
+			m.SSHPort = uint(n)
 		}
 	}
 	if err := s.Err(); err != nil {