Fix multizone gce pd subpath test

test/e2e/storage/drivers/in_tree.go

@@ -1046,23 +1046,23 @@ func deleteCinderVolume(name string) error {
 }
 
 // GCE
-type gceDriver struct {
+type gcePdDriver struct {
 	volumeName string
 
 	driverInfo DriverInfo
 }
 
-var _ TestDriver = &gceDriver{}
-var _ PreprovisionedVolumeTestDriver = &gceDriver{}
-var _ InlineVolumeTestDriver = &gceDriver{}
-var _ PreprovisionedPVTestDriver = &gceDriver{}
-var _ DynamicPVTestDriver = &gceDriver{}
+var _ TestDriver = &gcePdDriver{}
+var _ PreprovisionedVolumeTestDriver = &gcePdDriver{}
+var _ InlineVolumeTestDriver = &gcePdDriver{}
+var _ PreprovisionedPVTestDriver = &gcePdDriver{}
+var _ DynamicPVTestDriver = &gcePdDriver{}
 
-// InitGceDriver returns gceDriver that implements TestDriver interface
-func InitGceDriver() TestDriver {
-	return &gceDriver{
+// InitGceDriver returns gcePdDriver that implements TestDriver interface
+func InitGcePdDriver() TestDriver {
+	return &gcePdDriver{
 		driverInfo: DriverInfo{
-			Name:        "gce",
+			Name:        "gcepd",
 			MaxFileSize: testpatterns.FileSizeMedium,
 			SupportedFsType: sets.NewString(
 				"", // Default fsType
@@ -1078,18 +1078,18 @@ func InitGceDriver() TestDriver {
 	}
 }
 
-func (g *gceDriver) GetDriverInfo() *DriverInfo {
+func (g *gcePdDriver) GetDriverInfo() *DriverInfo {
 	return &g.driverInfo
 }
 
-func (g *gceDriver) SkipUnsupportedTest(pattern testpatterns.TestPattern) {
+func (g *gcePdDriver) SkipUnsupportedTest(pattern testpatterns.TestPattern) {
 	framework.SkipUnlessProviderIs("gce", "gke")
 	if pattern.FsType == "xfs" {
 		framework.SkipUnlessNodeOSDistroIs("ubuntu", "custom")
 	}
 }
 
-func (g *gceDriver) GetVolumeSource(readOnly bool, fsType string) *v1.VolumeSource {
+func (g *gcePdDriver) GetVolumeSource(readOnly bool, fsType string) *v1.VolumeSource {
 	volSource := v1.VolumeSource{
 		GCEPersistentDisk: &v1.GCEPersistentDiskVolumeSource{
 			PDName:   g.volumeName,
@@ -1102,7 +1102,7 @@ func (g *gceDriver) GetVolumeSource(readOnly bool, fsType string) *v1.VolumeSour
 	return &volSource
 }
 
-func (g *gceDriver) GetPersistentVolumeSource(readOnly bool, fsType string) *v1.PersistentVolumeSource {
+func (g *gcePdDriver) GetPersistentVolumeSource(readOnly bool, fsType string) *v1.PersistentVolumeSource {
 	pvSource := v1.PersistentVolumeSource{
 		GCEPersistentDisk: &v1.GCEPersistentDiskVolumeSource{
 			PDName:   g.volumeName,
@@ -1115,7 +1115,7 @@ func (g *gceDriver) GetPersistentVolumeSource(readOnly bool, fsType string) *v1.
 	return &pvSource
 }
 
-func (g *gceDriver) GetDynamicProvisionStorageClass(fsType string) *storagev1.StorageClass {
+func (g *gcePdDriver) GetDynamicProvisionStorageClass(fsType string) *storagev1.StorageClass {
 	provisioner := "kubernetes.io/gce-pd"
 	parameters := map[string]string{}
 	if fsType != "" {
@@ -1127,13 +1127,13 @@ func (g *gceDriver) GetDynamicProvisionStorageClass(fsType string) *storagev1.St
 	return getStorageClass(provisioner, parameters, nil, ns, suffix)
 }
 
-func (g *gceDriver) CreateDriver() {
+func (g *gcePdDriver) CreateDriver() {
 }
 
-func (g *gceDriver) CleanupDriver() {
+func (g *gcePdDriver) CleanupDriver() {
 }
 
-func (g *gceDriver) CreateVolume(volType testpatterns.TestVolType) {
+func (g *gcePdDriver) CreateVolume(volType testpatterns.TestVolType) {
 	if volType == testpatterns.InlineVolume {
 		// PD will be created in framework.TestContext.CloudConfig.Zone zone,
 		// so pods should be also scheduled there.
@@ -1147,7 +1147,7 @@ func (g *gceDriver) CreateVolume(volType testpatterns.TestVolType) {
 	Expect(err).NotTo(HaveOccurred())
 }
 
-func (g *gceDriver) DeleteVolume(volType testpatterns.TestVolType) {
+func (g *gcePdDriver) DeleteVolume(volType testpatterns.TestVolType) {
 	framework.DeletePDWithRetry(g.volumeName)
 }
 

test/e2e/storage/in_tree_volumes.go

@@ -38,7 +38,7 @@ var testDrivers = []func() drivers.TestDriver{
 	drivers.InitHostpathSymlinkDriver,
 	drivers.InitEmptydirDriver,
 	drivers.InitCinderDriver,
-	drivers.InitGceDriver,
+	drivers.InitGcePdDriver,
 	drivers.InitVSphereDriver,
 	drivers.InitAzureDriver,
 	drivers.InitAwsDriver,

test/e2e/storage/subpath.go

@@ -57,7 +57,7 @@ var _ = utils.SIGDescribe("Subpath", func() {
 		  Description: Containers in a pod can read content from a secret mounted volume which was configured with a subpath.
 		*/
 		framework.ConformanceIt("should support subpaths with secret pod", func() {
-			pod := testsuites.TestPodSubpath(f, "secret-key", "secret", &v1.VolumeSource{Secret: &v1.SecretVolumeSource{SecretName: "my-secret"}}, privilegedSecurityContext)
+			pod := testsuites.SubpathTestPod(f, "secret-key", "secret", &v1.VolumeSource{Secret: &v1.SecretVolumeSource{SecretName: "my-secret"}}, privilegedSecurityContext)
 			testsuites.TestBasicSubpath(f, "secret-value", pod)
 		})
 
@@ -67,7 +67,7 @@ var _ = utils.SIGDescribe("Subpath", func() {
 		  Description: Containers in a pod can read content from a configmap mounted volume which was configured with a subpath.
 		*/
 		framework.ConformanceIt("should support subpaths with configmap pod", func() {
-			pod := testsuites.TestPodSubpath(f, "configmap-key", "configmap", &v1.VolumeSource{ConfigMap: &v1.ConfigMapVolumeSource{LocalObjectReference: v1.LocalObjectReference{Name: "my-configmap"}}}, privilegedSecurityContext)
+			pod := testsuites.SubpathTestPod(f, "configmap-key", "configmap", &v1.VolumeSource{ConfigMap: &v1.ConfigMapVolumeSource{LocalObjectReference: v1.LocalObjectReference{Name: "my-configmap"}}}, privilegedSecurityContext)
 			testsuites.TestBasicSubpath(f, "configmap-value", pod)
 		})
 
@@ -77,7 +77,7 @@ var _ = utils.SIGDescribe("Subpath", func() {
 		  Description: Containers in a pod can read content from a configmap mounted volume which was configured with a subpath and also using a mountpath that is a specific file.
 		*/
 		framework.ConformanceIt("should support subpaths with configmap pod with mountPath of existing file", func() {
-			pod := testsuites.TestPodSubpath(f, "configmap-key", "configmap", &v1.VolumeSource{ConfigMap: &v1.ConfigMapVolumeSource{LocalObjectReference: v1.LocalObjectReference{Name: "my-configmap"}}}, privilegedSecurityContext)
+			pod := testsuites.SubpathTestPod(f, "configmap-key", "configmap", &v1.VolumeSource{ConfigMap: &v1.ConfigMapVolumeSource{LocalObjectReference: v1.LocalObjectReference{Name: "my-configmap"}}}, privilegedSecurityContext)
 			file := "/etc/resolv.conf"
 			pod.Spec.Containers[0].VolumeMounts[0].MountPath = file
 			testsuites.TestBasicSubpathFile(f, "configmap-value", pod, file)
@@ -89,7 +89,7 @@ var _ = utils.SIGDescribe("Subpath", func() {
 		  Description: Containers in a pod can read content from a downwardAPI mounted volume which was configured with a subpath.
 		*/
 		framework.ConformanceIt("should support subpaths with downward pod", func() {
-			pod := testsuites.TestPodSubpath(f, "downward/podname", "downwardAPI", &v1.VolumeSource{
+			pod := testsuites.SubpathTestPod(f, "downward/podname", "downwardAPI", &v1.VolumeSource{
 				DownwardAPI: &v1.DownwardAPIVolumeSource{
 					Items: []v1.DownwardAPIVolumeFile{{Path: "downward/podname", FieldRef: &v1.ObjectFieldSelector{APIVersion: "v1", FieldPath: "metadata.name"}}},
 				},
@@ -103,7 +103,7 @@ var _ = utils.SIGDescribe("Subpath", func() {
 		  Description: Containers in a pod can read content from a projected mounted volume which was configured with a subpath.
 		*/
 		framework.ConformanceIt("should support subpaths with projected pod", func() {
-			pod := testsuites.TestPodSubpath(f, "projected/configmap-key", "projected", &v1.VolumeSource{
+			pod := testsuites.SubpathTestPod(f, "projected/configmap-key", "projected", &v1.VolumeSource{
 				Projected: &v1.ProjectedVolumeSource{
 					Sources: []v1.VolumeProjection{
 						{ConfigMap: &v1.ConfigMapProjection{

test/e2e/storage/testsuites/subpath.go

@@ -89,6 +89,7 @@ func createSubPathTestInput(pattern testpatterns.TestPattern, resource subPathTe
 		filePathInVolume:  filepath.Join(subPathDir, fileName),
 		volType:           resource.volType,
 		pod:               resource.pod,
+		formatPod:         resource.formatPod,
 		volSource:         resource.genericVolumeTestResource.volSource,
 		roVol:             resource.roVolSource,
 	}
@@ -131,6 +132,7 @@ type subPathTestResource struct {
 
 	roVolSource *v1.VolumeSource
 	pod         *v1.Pod
+	formatPod   *v1.Pod
 }
 
 var _ TestResource = &subPathTestResource{}
@@ -171,9 +173,13 @@ func (s *subPathTestResource) setupResource(driver drivers.TestDriver, pattern t
 
 	subPath := f.Namespace.Name
 	config := dInfo.Config
-	s.pod = TestPodSubpath(f, subPath, s.volType, s.volSource, true)
+	s.pod = SubpathTestPod(f, subPath, s.volType, s.volSource, true)
 	s.pod.Spec.NodeName = config.ClientNodeName
 	s.pod.Spec.NodeSelector = config.NodeSelector
+
+	s.formatPod = volumeFormatPod(f, s.volSource)
+	s.formatPod.Spec.NodeName = config.ClientNodeName
+	s.formatPod.Spec.NodeSelector = config.NodeSelector
 }
 
 func (s *subPathTestResource) cleanupResource(driver drivers.TestDriver, pattern testpatterns.TestPattern) {
@@ -196,6 +202,7 @@ type subPathTestInput struct {
 	filePathInVolume  string
 	volType           string
 	pod               *v1.Pod
+	formatPod         *v1.Pod
 	volSource         *v1.VolumeSource
 	roVol             *v1.VolumeSource
 }
@@ -359,7 +366,7 @@ func testSubPath(input *subPathTestInput) {
 		}
 
 		// Format the volume while it's writable
-		formatVolume(input.f, input.volSource)
+		formatVolume(input.f, input.formatPod)
 
 		// Set volume source to read only
 		input.pod.Spec.Volumes[0].VolumeSource = *input.roVol
@@ -387,8 +394,8 @@ func TestBasicSubpathFile(f *framework.Framework, contents string, pod *v1.Pod,
 	Expect(err).NotTo(HaveOccurred(), "while deleting pod")
 }
 
-// TestPodSubpath runs pod subpath test
-func TestPodSubpath(f *framework.Framework, subpath, volumeType string, source *v1.VolumeSource, privilegedSecurityContext bool) *v1.Pod {
+// SubpathTestPod returns a pod spec for subpath tests
+func SubpathTestPod(f *framework.Framework, subpath, volumeType string, source *v1.VolumeSource, privilegedSecurityContext bool) *v1.Pod {
 	var (
 		suffix          = strings.ToLower(fmt.Sprintf("%s-%s", volumeType, rand.String(4)))
 		gracePeriod     = int64(1)
@@ -479,6 +486,38 @@ func TestPodSubpath(f *framework.Framework, subpath, volumeType string, source *
 	}
 }
 
+// volumeFormatPod returns a Pod that does nothing but will cause the plugin to format a filesystem
+// on first use
+func volumeFormatPod(f *framework.Framework, volumeSource *v1.VolumeSource) *v1.Pod {
+	return &v1.Pod{
+		ObjectMeta: metav1.ObjectMeta{
+			Name: fmt.Sprintf("volume-prep-%s", f.Namespace.Name),
+		},
+		Spec: v1.PodSpec{
+			Containers: []v1.Container{
+				{
+					Name:    fmt.Sprintf("init-volume-%s", f.Namespace.Name),
+					Image:   imageutils.GetE2EImage(imageutils.BusyBox),
+					Command: []string{"/bin/sh", "-ec", "echo nothing"},
+					VolumeMounts: []v1.VolumeMount{
+						{
+							Name:      volumeName,
+							MountPath: "/vol",
+						},
+					},
+				},
+			},
+			RestartPolicy: v1.RestartPolicyNever,
+			Volumes: []v1.Volume{
+				{
+					Name:         volumeName,
+					VolumeSource: *volumeSource,
+				},
+			},
+		},
+	}
+}
+
 func clearSubpathPodCommands(pod *v1.Pod) {
 	pod.Spec.InitContainers[0].Command = nil
 	pod.Spec.Containers[0].Args = nil
@@ -684,38 +723,9 @@ func testSubpathReconstruction(f *framework.Framework, pod *v1.Pod, forceDelete
 	utils.TestVolumeUnmountsFromDeletedPodWithForceOption(f.ClientSet, f, pod, forceDelete, true)
 }
 
-func formatVolume(f *framework.Framework, volumeSource *v1.VolumeSource) {
-	var err error
-	// Launch pod to format the volume
-	pod := &v1.Pod{
-		ObjectMeta: metav1.ObjectMeta{
-			Name: fmt.Sprintf("volume-prep-%s", f.Namespace.Name),
-		},
-		Spec: v1.PodSpec{
-			Containers: []v1.Container{
-				{
-					Name:    fmt.Sprintf("init-volume-%s", f.Namespace.Name),
-					Image:   imageutils.GetE2EImage(imageutils.BusyBox),
-					Command: []string{"/bin/sh", "-ec", "echo nothing"},
-					VolumeMounts: []v1.VolumeMount{
-						{
-							Name:      volumeName,
-							MountPath: "/vol",
-						},
-					},
-				},
-			},
-			RestartPolicy: v1.RestartPolicyNever,
-			Volumes: []v1.Volume{
-				{
-					Name:         volumeName,
-					VolumeSource: *volumeSource,
-				},
-			},
-		},
-	}
+func formatVolume(f *framework.Framework, pod *v1.Pod) {
 	By(fmt.Sprintf("Creating pod to format volume %s", pod.Name))
-	pod, err = f.ClientSet.CoreV1().Pods(f.Namespace.Name).Create(pod)
+	pod, err := f.ClientSet.CoreV1().Pods(f.Namespace.Name).Create(pod)
 	Expect(err).ToNot(HaveOccurred(), "while creating volume init pod")
 
 	err = framework.WaitForPodSuccessInNamespace(f.ClientSet, pod.Name, pod.Namespace)