Add HostIP support for none, reduce tech debt

cmd/minikube/cmd/mount.go

@@ -106,7 +106,7 @@ var mountCmd = &cobra.Command{
 		var ip net.IP
 		var err error
 		if mountIP == "" {
-			ip, err = cluster.GetVMHostIP(co.CP.Host)
+			ip, err = cluster.HostIP(co.CP.Host)
 			if err != nil {
 				exit.WithError("Error getting the host IP address to use from within the VM", err)
 			}

cmd/minikube/cmd/status.go

@@ -188,7 +188,7 @@ func status(api libmachine.API, cc config.ClusterConfig, n config.Node) (*Status
 	}
 
 	// We have a fully operational host, now we can check for details
-	if _, err := cluster.GetHostDriverIP(api, name); err != nil {
+	if _, err := cluster.DriverIP(api, name); err != nil {
 		glog.Errorf("failed to get driver ip: %v", err)
 		st.Host = state.Error.String()
 		return st, err

pkg/minikube/cluster/ip.go

@@ -30,8 +30,8 @@ import (
 	"k8s.io/minikube/pkg/minikube/machine"
 )
 
-// GetVMHostIP gets the ip address to be used for mapping host -> VM and VM -> host
-func GetVMHostIP(host *host.Host) (net.IP, error) {
+// HostIP gets the ip address to be used for mapping host -> VM and VM -> host
+func HostIP(host *host.Host) (net.IP, error) {
 	switch host.DriverName {
 	case driver.Docker:
 		return oci.RoutableHostIPFromInside(oci.Docker, host.Name)
@@ -72,13 +72,15 @@ func GetVMHostIP(host *host.Host) (net.IP, error) {
 			return []byte{}, errors.Wrap(err, "Error converting VM IP address to IPv4 address")
 		}
 		return net.IPv4(vmIP[0], vmIP[1], vmIP[2], byte(1)), nil
+	case driver.None:
+		return net.ParseIP("127.0.0.1"), nil
 	default:
-		return []byte{}, errors.New("Error, attempted to get host ip address for unsupported driver")
+		return []byte{}, fmt.Errorf("HostIP not yet implemented for %q driver", host.DriverName)
 	}
 }
 
-// GetHostDriverIP gets the ip address of the current minikube cluster
-func GetHostDriverIP(api libmachine.API, machineName string) (net.IP, error) {
+// DriverIP gets the ip address of the current minikube cluster
+func DriverIP(api libmachine.API, machineName string) (net.IP, error) {
 	host, err := machine.LoadHost(api, machineName)
 	if err != nil {
 		return nil, err