Fix for vSphere driver boot2docker ISO issues

Fixes #2279 #2060

Signed-off-by: Fabio Rapposelli <fabio@vmware.com>

drivers/vmwarevsphere/vc_conn.go

@@ -63,7 +63,7 @@ func (conn VcConn) DatastoreMkdir(dirName string) error {
 
 func (conn VcConn) DatastoreUpload(localPath, destination string) error {
 	stdout, err := conn.DatastoreLs(destination)
-	if err == nil && strings.Contains(stdout, B2DISOName) {
+	if err == nil && strings.Contains(stdout, isoFilename) {
 		log.Infof("boot2docker ISO already uploaded, skipping upload... ")
 		return nil
 	}
@@ -71,7 +71,7 @@ func (conn VcConn) DatastoreUpload(localPath, destination string) error {
 	log.Infof("Uploading %s to %s on datastore %s of vCenter %s... ",
 		localPath, destination, conn.driver.Datastore, conn.driver.IP)
 
-	dsPath := fmt.Sprintf("%s/%s", destination, B2DISOName)
+	dsPath := fmt.Sprintf("%s/%s", destination, isoFilename)
 	args := []string{"datastore.upload"}
 	args = conn.AppendConnectionString(args)
 	args = append(args, fmt.Sprintf("--ds=%s", conn.driver.Datastore))

drivers/vmwarevsphere/vsphere.go

@@ -10,7 +10,6 @@ import (
 	"io/ioutil"
 	"net"
 	"os"
-	"path/filepath"
 	"strings"
 	"time"
 
@@ -26,7 +25,6 @@ import (
 
 const (
 	isoFilename = "boot2docker.iso"
-	B2DISOName  = isoFilename
 	B2DUser     = "docker"
 	B2DPass     = "tcuser"
 )
@@ -172,7 +170,7 @@ func (d *Driver) SetConfigFromFlags(flags drivers.DriverOptions) error {
 	d.SwarmHost = flags.String("swarm-host")
 	d.SwarmDiscovery = flags.String("swarm-discovery")
 
-	d.ISO = filepath.Join(d.StorePath, isoFilename)
+	d.ISO = d.ResolveStorePath(isoFilename)
 
 	return nil
 }