Added option to disable virtualbox vbfs mount of users home directory

docs/drivers/virtualbox.md

@@ -13,7 +13,7 @@ Create machines locally using [VirtualBox](https://www.virtualbox.org/).
 This driver requires VirtualBox to be installed on your host.
 
     $ docker-machine create --driver=virtualbox vbox-test
-    
+
 You can create an entirely new machine or you can convert a Boot2Docker VM into
 a machine by importing the VM. To convert a Boot2Docker VM, you'd use the following
 command:
@@ -29,6 +29,7 @@ Options:
  - `--virtualbox-boot2docker-url`: The URL of the boot2docker image. Defaults to the latest available version.
  - `--virtualbox-import-boot2docker-vm`: The name of a Boot2Docker VM to import.
  - `--virtualbox-hostonly-cidr`: The CIDR of the host only adapter.
+ - `--virtualbox-no-share`: Disable the mount of your home directory
 
 The `--virtualbox-boot2docker-url` flag takes a few different forms. By
 default, if no value is specified for this flag, Machine will check locally for
@@ -49,11 +50,11 @@ using the `http://` form.
 
 To customize the host only adapter, you can use the `--virtualbox-hostonly-cidr`
 flag.  This will specify the host IP and Machine will calculate the VirtualBox
-DHCP server address (a random IP on the subnet between `.1` and `.25`) so 
+DHCP server address (a random IP on the subnet between `.1` and `.25`) so
 it does not clash with the specified host IP.
 Machine will also specify the DHCP lower bound to `.100` and the upper bound
 to `.254`.  For example, a specified CIDR of `192.168.24.1/24` would have a
-DHCP server between `192.168.24.2-25`, a lower bound of `192.168.24.100` and 
+DHCP server between `192.168.24.2-25`, a lower bound of `192.168.24.100` and
 upper bound of `192.168.24.254`.
 
 Environment variables and default values:
@@ -66,3 +67,4 @@ Environment variables and default values:
 | `--virtualbox-boot2docker-url`       | `VIRTUALBOX_BOOT2DOCKER_URL` | *Latest boot2docker url* |
 | `--virtualbox-import-boot2docker-vm` | -                            | `boot2docker-vm`         |
 | `--virtualbox-hostonly-cidr`         | `VIRTUALBOX_HOSTONLY_CIDR`   | `192.168.99.1/24`        |
+| `--virtualbox-no-share`              | -                            | `false`                  |

drivers/virtualbox/virtualbox.go

@@ -43,6 +43,7 @@ type Driver struct {
 	Boot2DockerURL      string
 	Boot2DockerImportVM string
 	HostOnlyCIDR        string
+	NoShare             bool
 }
 
 func init() {
@@ -91,6 +92,10 @@ func GetCreateFlags() []cli.Flag {
 			Value:  defaultHostOnlyCIDR,
 			EnvVar: "VIRTUALBOX_HOSTONLY_CIDR",
 		},
+		cli.BoolFlag{
+			Name:  "virtualbox-no-share",
+			Usage: "Disable the mount of your home directory",
+		},
 	}
 }
 
@@ -137,6 +142,7 @@ func (d *Driver) SetConfigFromFlags(flags drivers.DriverOptions) error {
 	d.SSHUser = "docker"
 	d.Boot2DockerImportVM = flags.String("virtualbox-import-boot2docker-vm")
 	d.HostOnlyCIDR = flags.String("virtualbox-hostonly-cidr")
+	d.NoShare = flags.Bool("virtualbox-no-share")
 
 	return nil
 }
@@ -307,7 +313,8 @@ func (d *Driver) Create() error {
 		// TODO "linux"
 	}
 
-	if shareDir != "" {
+	if shareDir != "" && !d.NoShare {
+		log.Debugf("setting up shareDir")
 		if _, err := os.Stat(shareDir); err != nil && !os.IsNotExist(err) {
 			return err
 		} else if !os.IsNotExist(err) {