Embed VolumeSource in v1beta3 and internal.

test/e2e/pd.go

@@ -192,7 +192,7 @@ func testPDPod(diskName, targetHost string, readOnly bool) *api.Pod {
 			Volumes: []api.Volume{
 				{
 					Name: "testpd",
-					Source: api.VolumeSource{
+					VolumeSource: api.VolumeSource{
 						GCEPersistentDisk: &api.GCEPersistentDiskVolumeSource{
 							PDName:   diskName,
 							FSType:   "ext4",

test/e2e/secrets.go

@@ -79,7 +79,7 @@ var _ = Describe("Secrets", func() {
 				Volumes: []api.Volume{
 					{
 						Name: volumeName,
-						Source: api.VolumeSource{
+						VolumeSource: api.VolumeSource{
 							Secret: &api.SecretVolumeSource{
 								Target: api.ObjectReference{
 									Kind:      "Secret",

test/e2e/service.go

@@ -75,7 +75,7 @@ var _ = Describe("Services", func() {
 				Volumes: []api.Volume{
 					{
 						Name: "results",
-						Source: api.VolumeSource{
+						VolumeSource: api.VolumeSource{
 							EmptyDir: &api.EmptyDirVolumeSource{},
 						},
 					},