build: move e2e dependencies into e2e/go.mod

Several packages are only used while running the e2e suite. These
packages are less important to update, as the they can not influence the
final executable that is part of the Ceph-CSI container-image.

By moving these dependencies out of the main Ceph-CSI go.mod, it is
easier to identify if a reported CVE affects Ceph-CSI, or only the
testing (like most of the Kubernetes CVEs).

Signed-off-by: Niels de Vos <ndevos@ibm.com>

e2e/vendor/k8s.io/csi-translation-lib/CONTRIBUTING.md

@@ -0,0 +1,7 @@
+# Contributing guidelines
+
+Do not open pull requests directly against this repository, they will be ignored. Instead, please open pull requests against [kubernetes/kubernetes](https://git.k8s.io/kubernetes/).  Please follow the same [contributing guide](https://git.k8s.io/kubernetes/CONTRIBUTING.md) you would follow for any other pull request made to kubernetes/kubernetes.
+
+This repository is published from [kubernetes/kubernetes/staging/src/k8s.io/csi-translation-lib](https://git.k8s.io/kubernetes/staging/src/k8s.io/csi-translation-lib) by the [kubernetes publishing-bot](https://git.k8s.io/publishing-bot).
+
+Please see [Staging Directory and Publishing](https://git.k8s.io/community/contributors/devel/sig-architecture/staging.md) for more information.

e2e/vendor/k8s.io/csi-translation-lib/LICENSE

@@ -0,0 +1,201 @@
+                                 Apache License
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+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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+   Unless required by applicable law or agreed to in writing, software
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+   See the License for the specific language governing permissions and
+   limitations under the License.

e2e/vendor/k8s.io/csi-translation-lib/OWNERS

@@ -0,0 +1,11 @@
+# See the OWNERS docs at https://go.k8s.io/owners
+
+reviewers:
+  - sig-storage-reviewers
+  - andyzhangx
+approvers:
+  - sig-storage-approvers
+labels:
+  - sig/storage
+emeritus_approvers:
+  - davidz627

e2e/vendor/k8s.io/csi-translation-lib/README.md

@@ -0,0 +1,30 @@
+## Purpose
+
+This repository contains functions to be consumed by various Kubernetes and
+out-of-tree CSI components like external provisioner to facilitate migration of
+code from Kubernetes In-tree plugin code to CSI plugin repositories.
+
+Consumers of this repository can make use of functions like `TranslateToCSI` and
+`TranslateToInTree` functions to translate PV sources.
+
+## Community, discussion, contribution, and support
+
+Learn how to engage with the Kubernetes community on the [community
+page](http://kubernetes.io/community/).
+
+You can reach the maintainers of this repository at:
+
+- Slack: #sig-storage (on https://kubernetes.slack.com -- get an
+  invite at slack.kubernetes.io)
+- Mailing List:
+  https://groups.google.com/forum/#!forum/kubernetes-sig-storage
+
+### Code of Conduct
+
+Participation in the Kubernetes community is governed by the [Kubernetes
+Code of Conduct](code-of-conduct.md).
+
+### Contibution Guidelines
+
+See [CONTRIBUTING.md](CONTRIBUTING.md) for more information.
+

e2e/vendor/k8s.io/csi-translation-lib/SECURITY_CONTACTS

@@ -0,0 +1,18 @@
+# Defined below are the security contacts for this repo.
+#
+# They are the contact point for the Product Security Committee to reach out
+# to for triaging and handling of incoming issues.
+#
+# The below names agree to abide by the
+# [Embargo Policy](https://git.k8s.io/security/private-distributors-list.md#embargo-policy)
+# and will be removed and replaced if they violate that agreement.
+#
+# DO NOT REPORT SECURITY VULNERABILITIES DIRECTLY TO THESE NAMES, FOLLOW THE
+# INSTRUCTIONS AT https://kubernetes.io/security/
+
+saad-ali
+cjcullen
+joelsmith
+liggitt
+philips
+tallclair

e2e/vendor/k8s.io/csi-translation-lib/code-of-conduct.md

@@ -0,0 +1,3 @@
+# Kubernetes Community Code of Conduct
+
+Please refer to our [Kubernetes Community Code of Conduct](https://git.k8s.io/community/code-of-conduct.md)

e2e/vendor/k8s.io/csi-translation-lib/plugins/aws_ebs.go

@@ -0,0 +1,305 @@
+/*
+Copyright 2019 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package plugins
+
+import (
+	"fmt"
+	"net/url"
+	"regexp"
+	"strconv"
+	"strings"
+
+	v1 "k8s.io/api/core/v1"
+	storage "k8s.io/api/storage/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/util/sets"
+	"k8s.io/klog/v2"
+)
+
+const (
+	// AWSEBSDriverName is the name of the CSI driver for EBS
+	AWSEBSDriverName = "ebs.csi.aws.com"
+	// AWSEBSInTreePluginName is the name of the intree plugin for EBS
+	AWSEBSInTreePluginName = "kubernetes.io/aws-ebs"
+	// AWSEBSTopologyKey is the zonal topology key for AWS EBS CSI driver
+	AWSEBSTopologyKey = "topology." + AWSEBSDriverName + "/zone"
+	// iopsPerGBKey is StorageClass parameter name that specifies IOPS
+	// Per GB.
+	iopsPerGBKey = "iopspergb"
+	// allowIncreaseIOPSKey is parameter name that allows the CSI driver
+	// to increase IOPS to the minimum value supported by AWS when IOPS
+	// Per GB is too low for a given volume size. This preserves current
+	// in-tree volume plugin behavior.
+	allowIncreaseIOPSKey = "allowautoiopspergbincrease"
+)
+
+var _ InTreePlugin = &awsElasticBlockStoreCSITranslator{}
+
+// awsElasticBlockStoreTranslator handles translation of PV spec from In-tree EBS to CSI EBS and vice versa
+type awsElasticBlockStoreCSITranslator struct{}
+
+// NewAWSElasticBlockStoreCSITranslator returns a new instance of awsElasticBlockStoreTranslator
+func NewAWSElasticBlockStoreCSITranslator() InTreePlugin {
+	return &awsElasticBlockStoreCSITranslator{}
+}
+
+// TranslateInTreeStorageClassToCSI translates InTree EBS storage class parameters to CSI storage class
+func (t *awsElasticBlockStoreCSITranslator) TranslateInTreeStorageClassToCSI(logger klog.Logger, sc *storage.StorageClass) (*storage.StorageClass, error) {
+	var (
+		generatedTopologies []v1.TopologySelectorTerm
+		params              = map[string]string{}
+	)
+	for k, v := range sc.Parameters {
+		switch strings.ToLower(k) {
+		case fsTypeKey:
+			params[csiFsTypeKey] = v
+		case zoneKey:
+			generatedTopologies = generateToplogySelectors(AWSEBSTopologyKey, []string{v})
+		case zonesKey:
+			generatedTopologies = generateToplogySelectors(AWSEBSTopologyKey, strings.Split(v, ","))
+		case iopsPerGBKey:
+			// Keep iopsPerGBKey
+			params[k] = v
+			// Preserve current in-tree volume plugin behavior and allow the CSI
+			// driver to bump volume IOPS when volume size * iopsPerGB is too low.
+			params[allowIncreaseIOPSKey] = "true"
+		default:
+			params[k] = v
+		}
+	}
+
+	if len(generatedTopologies) > 0 && len(sc.AllowedTopologies) > 0 {
+		return nil, fmt.Errorf("cannot simultaneously set allowed topologies and zone/zones parameters")
+	} else if len(generatedTopologies) > 0 {
+		sc.AllowedTopologies = generatedTopologies
+	} else if len(sc.AllowedTopologies) > 0 {
+		newTopologies, err := translateAllowedTopologies(sc.AllowedTopologies, AWSEBSTopologyKey)
+		if err != nil {
+			return nil, fmt.Errorf("failed translating allowed topologies: %v", err)
+		}
+		sc.AllowedTopologies = newTopologies
+	}
+
+	sc.Parameters = params
+
+	return sc, nil
+}
+
+// TranslateInTreeInlineVolumeToCSI takes a Volume with AWSElasticBlockStore set from in-tree
+// and converts the AWSElasticBlockStore source to a CSIPersistentVolumeSource
+func (t *awsElasticBlockStoreCSITranslator) TranslateInTreeInlineVolumeToCSI(logger klog.Logger, volume *v1.Volume, podNamespace string) (*v1.PersistentVolume, error) {
+	if volume == nil || volume.AWSElasticBlockStore == nil {
+		return nil, fmt.Errorf("volume is nil or AWS EBS not defined on volume")
+	}
+	ebsSource := volume.AWSElasticBlockStore
+	volumeHandle, err := KubernetesVolumeIDToEBSVolumeID(ebsSource.VolumeID)
+	if err != nil {
+		return nil, fmt.Errorf("failed to translate Kubernetes ID to EBS Volume ID %v", err)
+	}
+	pv := &v1.PersistentVolume{
+		ObjectMeta: metav1.ObjectMeta{
+			// Must be unique per disk as it is used as the unique part of the
+			// staging path
+			Name: fmt.Sprintf("%s-%s", AWSEBSDriverName, volumeHandle),
+		},
+		Spec: v1.PersistentVolumeSpec{
+			PersistentVolumeSource: v1.PersistentVolumeSource{
+				CSI: &v1.CSIPersistentVolumeSource{
+					Driver:       AWSEBSDriverName,
+					VolumeHandle: volumeHandle,
+					ReadOnly:     ebsSource.ReadOnly,
+					FSType:       ebsSource.FSType,
+					VolumeAttributes: map[string]string{
+						"partition": strconv.FormatInt(int64(ebsSource.Partition), 10),
+					},
+				},
+			},
+			AccessModes: []v1.PersistentVolumeAccessMode{v1.ReadWriteOnce},
+		},
+	}
+	return pv, nil
+}
+
+// TranslateInTreePVToCSI takes a PV with AWSElasticBlockStore set from in-tree
+// and converts the AWSElasticBlockStore source to a CSIPersistentVolumeSource
+func (t *awsElasticBlockStoreCSITranslator) TranslateInTreePVToCSI(logger klog.Logger, pv *v1.PersistentVolume) (*v1.PersistentVolume, error) {
+	if pv == nil || pv.Spec.AWSElasticBlockStore == nil {
+		return nil, fmt.Errorf("pv is nil or AWS EBS not defined on pv")
+	}
+
+	ebsSource := pv.Spec.AWSElasticBlockStore
+
+	volumeHandle, err := KubernetesVolumeIDToEBSVolumeID(ebsSource.VolumeID)
+	if err != nil {
+		return nil, fmt.Errorf("failed to translate Kubernetes ID to EBS Volume ID %v", err)
+	}
+
+	csiSource := &v1.CSIPersistentVolumeSource{
+		Driver:       AWSEBSDriverName,
+		VolumeHandle: volumeHandle,
+		ReadOnly:     ebsSource.ReadOnly,
+		FSType:       ebsSource.FSType,
+		VolumeAttributes: map[string]string{
+			"partition": strconv.FormatInt(int64(ebsSource.Partition), 10),
+		},
+	}
+
+	if err := translateTopologyFromInTreeToCSI(pv, AWSEBSTopologyKey); err != nil {
+		return nil, fmt.Errorf("failed to translate topology: %v", err)
+	}
+
+	pv.Spec.AWSElasticBlockStore = nil
+	pv.Spec.CSI = csiSource
+	return pv, nil
+}
+
+// TranslateCSIPVToInTree takes a PV with CSIPersistentVolumeSource set and
+// translates the EBS CSI source to a AWSElasticBlockStore source.
+func (t *awsElasticBlockStoreCSITranslator) TranslateCSIPVToInTree(pv *v1.PersistentVolume) (*v1.PersistentVolume, error) {
+	if pv == nil || pv.Spec.CSI == nil {
+		return nil, fmt.Errorf("pv is nil or CSI source not defined on pv")
+	}
+
+	csiSource := pv.Spec.CSI
+
+	ebsSource := &v1.AWSElasticBlockStoreVolumeSource{
+		VolumeID: csiSource.VolumeHandle,
+		FSType:   csiSource.FSType,
+		ReadOnly: csiSource.ReadOnly,
+	}
+
+	if partition, ok := csiSource.VolumeAttributes["partition"]; ok {
+		partValue, err := strconv.Atoi(partition)
+		if err != nil {
+			return nil, fmt.Errorf("failed to convert partition %v to integer: %v", partition, err)
+		}
+		ebsSource.Partition = int32(partValue)
+	}
+
+	// translate CSI topology to In-tree topology for rollback compatibility
+	if err := translateTopologyFromCSIToInTree(pv, AWSEBSTopologyKey, getAwsRegionFromZones); err != nil {
+		return nil, fmt.Errorf("failed to translate topology. PV:%+v. Error:%v", *pv, err)
+	}
+
+	pv.Spec.CSI = nil
+	pv.Spec.AWSElasticBlockStore = ebsSource
+	return pv, nil
+}
+
+// CanSupport tests whether the plugin supports a given persistent volume
+// specification from the API.  The spec pointer should be considered
+// const.
+func (t *awsElasticBlockStoreCSITranslator) CanSupport(pv *v1.PersistentVolume) bool {
+	return pv != nil && pv.Spec.AWSElasticBlockStore != nil
+}
+
+// CanSupportInline tests whether the plugin supports a given inline volume
+// specification from the API.  The spec pointer should be considered
+// const.
+func (t *awsElasticBlockStoreCSITranslator) CanSupportInline(volume *v1.Volume) bool {
+	return volume != nil && volume.AWSElasticBlockStore != nil
+}
+
+// GetInTreePluginName returns the name of the intree plugin driver
+func (t *awsElasticBlockStoreCSITranslator) GetInTreePluginName() string {
+	return AWSEBSInTreePluginName
+}
+
+// GetCSIPluginName returns the name of the CSI plugin
+func (t *awsElasticBlockStoreCSITranslator) GetCSIPluginName() string {
+	return AWSEBSDriverName
+}
+
+func (t *awsElasticBlockStoreCSITranslator) RepairVolumeHandle(volumeHandle, nodeID string) (string, error) {
+	return volumeHandle, nil
+}
+
+// awsVolumeRegMatch represents Regex Match for AWS volume.
+var awsVolumeRegMatch = regexp.MustCompile("^vol-[^/]*$")
+
+// KubernetesVolumeIDToEBSVolumeID translates Kubernetes volume ID to EBS volume ID
+// KubernetesVolumeID forms:
+//   - aws://<zone>/<awsVolumeId>
+//   - aws:///<awsVolumeId>
+//   - <awsVolumeId>
+//
+// EBS Volume ID form:
+//   - vol-<alphanumberic>
+//
+// This translation shouldn't be needed and should be fixed in long run
+// See https://github.com/kubernetes/kubernetes/issues/73730
+func KubernetesVolumeIDToEBSVolumeID(kubernetesID string) (string, error) {
+	// name looks like aws://availability-zone/awsVolumeId
+
+	// The original idea of the URL-style name was to put the AZ into the
+	// host, so we could find the AZ immediately from the name without
+	// querying the API.  But it turns out we don't actually need it for
+	// multi-AZ clusters, as we put the AZ into the labels on the PV instead.
+	// However, if in future we want to support multi-AZ cluster
+	// volume-awareness without using PersistentVolumes, we likely will
+	// want the AZ in the host.
+	if !strings.HasPrefix(kubernetesID, "aws://") {
+		// Assume a bare aws volume id (vol-1234...)
+		return kubernetesID, nil
+	}
+	url, err := url.Parse(kubernetesID)
+	if err != nil {
+		// TODO: Maybe we should pass a URL into the Volume functions
+		return "", fmt.Errorf("Invalid disk name (%s): %v", kubernetesID, err)
+	}
+	if url.Scheme != "aws" {
+		return "", fmt.Errorf("Invalid scheme for AWS volume (%s)", kubernetesID)
+	}
+
+	awsID := url.Path
+	awsID = strings.Trim(awsID, "/")
+
+	// We sanity check the resulting volume; the two known formats are
+	// vol-12345678 and vol-12345678abcdef01
+	if !awsVolumeRegMatch.MatchString(awsID) {
+		return "", fmt.Errorf("Invalid format for AWS volume (%s)", kubernetesID)
+	}
+
+	return awsID, nil
+}
+
+func getAwsRegionFromZones(zones []string) (string, error) {
+	regions := sets.String{}
+	if len(zones) < 1 {
+		return "", fmt.Errorf("no zones specified")
+	}
+
+	// AWS zones can be in four forms:
+	// us-west-2a, us-gov-east-1a, us-west-2-lax-1a (local zone) and us-east-1-wl1-bos-wlz-1 (wavelength).
+	for _, zone := range zones {
+		splitZone := strings.Split(zone, "-")
+		if (len(splitZone) == 3 || len(splitZone) == 4) && len(splitZone[len(splitZone)-1]) == 2 {
+			// this would break if we ever have a location with more than 9 regions, ie us-west-10.
+			splitZone[len(splitZone)-1] = splitZone[len(splitZone)-1][:1]
+			regions.Insert(strings.Join(splitZone, "-"))
+		} else if len(splitZone) == 5 || len(splitZone) == 7 {
+			// local zone or wavelength
+			regions.Insert(strings.Join(splitZone[:3], "-"))
+		} else {
+			return "", fmt.Errorf("Unexpected zone format: %v is not a valid AWS zone", zone)
+		}
+	}
+	if regions.Len() != 1 {
+		return "", fmt.Errorf("multiple or no regions gotten from zones, got: %v", regions)
+	}
+	return regions.UnsortedList()[0], nil
+}

e2e/vendor/k8s.io/csi-translation-lib/plugins/azure_disk.go

@@ -0,0 +1,309 @@
+/*
+Copyright 2019 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package plugins
+
+import (
+	"fmt"
+	"regexp"
+	"strings"
+
+	v1 "k8s.io/api/core/v1"
+	storage "k8s.io/api/storage/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/klog/v2"
+)
+
+const (
+	// AzureDiskDriverName is the name of the CSI driver for Azure Disk
+	AzureDiskDriverName = "disk.csi.azure.com"
+	// AzureDiskTopologyKey is the topology key of Azure Disk CSI driver
+	AzureDiskTopologyKey = "topology.disk.csi.azure.com/zone"
+	// AzureDiskInTreePluginName is the name of the intree plugin for Azure Disk
+	AzureDiskInTreePluginName = "kubernetes.io/azure-disk"
+
+	// Parameter names defined in azure disk CSI driver, refer to
+	// https://github.com/kubernetes-sigs/azuredisk-csi-driver/blob/master/docs/driver-parameters.md
+	azureDiskKind        = "kind"
+	azureDiskCachingMode = "cachingmode"
+	azureDiskFSType      = "fstype"
+)
+
+var (
+	managedDiskPathRE   = regexp.MustCompile(`.*/subscriptions/(?:.*)/resourceGroups/(?:.*)/providers/Microsoft.Compute/disks/(.+)`)
+	unmanagedDiskPathRE = regexp.MustCompile(`http(?:.*)://(?:.*)/vhds/(.+)`)
+	managed             = string(v1.AzureManagedDisk)
+	unzonedCSIRegionRE  = regexp.MustCompile(`^[0-9]+$`)
+)
+
+var _ InTreePlugin = &azureDiskCSITranslator{}
+
+// azureDiskCSITranslator handles translation of PV spec from In-tree
+// Azure Disk to CSI Azure Disk and vice versa
+type azureDiskCSITranslator struct{}
+
+// NewAzureDiskCSITranslator returns a new instance of azureDiskTranslator
+func NewAzureDiskCSITranslator() InTreePlugin {
+	return &azureDiskCSITranslator{}
+}
+
+// TranslateInTreeStorageClassToCSI translates InTree Azure Disk storage class parameters to CSI storage class
+func (t *azureDiskCSITranslator) TranslateInTreeStorageClassToCSI(logger klog.Logger, sc *storage.StorageClass) (*storage.StorageClass, error) {
+	var (
+		generatedTopologies []v1.TopologySelectorTerm
+		params              = map[string]string{}
+	)
+	for k, v := range sc.Parameters {
+		switch strings.ToLower(k) {
+		case zoneKey:
+			generatedTopologies = generateToplogySelectors(AzureDiskTopologyKey, []string{v})
+		case zonesKey:
+			generatedTopologies = generateToplogySelectors(AzureDiskTopologyKey, strings.Split(v, ","))
+		default:
+			params[k] = v
+		}
+	}
+
+	if len(generatedTopologies) > 0 && len(sc.AllowedTopologies) > 0 {
+		return nil, fmt.Errorf("cannot simultaneously set allowed topologies and zone/zones parameters")
+	} else if len(generatedTopologies) > 0 {
+		sc.AllowedTopologies = generatedTopologies
+	} else if len(sc.AllowedTopologies) > 0 {
+		newTopologies, err := translateAllowedTopologies(sc.AllowedTopologies, AzureDiskTopologyKey)
+		if err != nil {
+			return nil, fmt.Errorf("failed translating allowed topologies: %v", err)
+		}
+		sc.AllowedTopologies = newTopologies
+	}
+	sc.AllowedTopologies = t.replaceFailureDomainsToCSI(sc.AllowedTopologies)
+
+	sc.Parameters = params
+
+	return sc, nil
+}
+
+// TranslateInTreeInlineVolumeToCSI takes a Volume with AzureDisk set from in-tree
+// and converts the AzureDisk source to a CSIPersistentVolumeSource
+func (t *azureDiskCSITranslator) TranslateInTreeInlineVolumeToCSI(logger klog.Logger, volume *v1.Volume, podNamespace string) (*v1.PersistentVolume, error) {
+	if volume == nil || volume.AzureDisk == nil {
+		return nil, fmt.Errorf("volume is nil or Azure Disk not defined on volume")
+	}
+
+	azureSource := volume.AzureDisk
+	if azureSource.Kind != nil && !strings.EqualFold(string(*azureSource.Kind), managed) {
+		return nil, fmt.Errorf("kind(%v) is not supported in csi migration", *azureSource.Kind)
+	}
+	pv := &v1.PersistentVolume{
+		ObjectMeta: metav1.ObjectMeta{
+			// Must be unique per disk as it is used as the unique part of the
+			// staging path
+			Name: azureSource.DataDiskURI,
+		},
+		Spec: v1.PersistentVolumeSpec{
+			PersistentVolumeSource: v1.PersistentVolumeSource{
+				CSI: &v1.CSIPersistentVolumeSource{
+					Driver:           AzureDiskDriverName,
+					VolumeHandle:     azureSource.DataDiskURI,
+					VolumeAttributes: map[string]string{azureDiskKind: managed},
+				},
+			},
+			AccessModes: []v1.PersistentVolumeAccessMode{v1.ReadWriteOnce},
+		},
+	}
+	if azureSource.ReadOnly != nil {
+		pv.Spec.PersistentVolumeSource.CSI.ReadOnly = *azureSource.ReadOnly
+	}
+
+	if azureSource.CachingMode != nil && *azureSource.CachingMode != "" {
+		pv.Spec.PersistentVolumeSource.CSI.VolumeAttributes[azureDiskCachingMode] = string(*azureSource.CachingMode)
+	}
+	if azureSource.FSType != nil {
+		pv.Spec.PersistentVolumeSource.CSI.FSType = *azureSource.FSType
+		pv.Spec.PersistentVolumeSource.CSI.VolumeAttributes[azureDiskFSType] = *azureSource.FSType
+	}
+	pv.Spec.PersistentVolumeSource.CSI.VolumeAttributes[azureDiskKind] = managed
+
+	return pv, nil
+}
+
+// TranslateInTreePVToCSI takes a PV with AzureDisk set from in-tree
+// and converts the AzureDisk source to a CSIPersistentVolumeSource
+func (t *azureDiskCSITranslator) TranslateInTreePVToCSI(logger klog.Logger, pv *v1.PersistentVolume) (*v1.PersistentVolume, error) {
+	if pv == nil || pv.Spec.AzureDisk == nil {
+		return nil, fmt.Errorf("pv is nil or Azure Disk source not defined on pv")
+	}
+
+	var (
+		azureSource = pv.Spec.PersistentVolumeSource.AzureDisk
+
+		// refer to https://github.com/kubernetes-sigs/azuredisk-csi-driver/blob/master/docs/driver-parameters.md
+		csiSource = &v1.CSIPersistentVolumeSource{
+			Driver:           AzureDiskDriverName,
+			VolumeAttributes: map[string]string{azureDiskKind: managed},
+			VolumeHandle:     azureSource.DataDiskURI,
+		}
+	)
+
+	if azureSource.Kind != nil && !strings.EqualFold(string(*azureSource.Kind), managed) {
+		return nil, fmt.Errorf("kind(%v) is not supported in csi migration", *azureSource.Kind)
+	}
+
+	if azureSource.CachingMode != nil {
+		csiSource.VolumeAttributes[azureDiskCachingMode] = string(*azureSource.CachingMode)
+	}
+
+	if azureSource.FSType != nil {
+		csiSource.FSType = *azureSource.FSType
+		csiSource.VolumeAttributes[azureDiskFSType] = *azureSource.FSType
+	}
+	csiSource.VolumeAttributes[azureDiskKind] = managed
+
+	if azureSource.ReadOnly != nil {
+		csiSource.ReadOnly = *azureSource.ReadOnly
+	}
+
+	pv.Spec.PersistentVolumeSource.AzureDisk = nil
+	pv.Spec.PersistentVolumeSource.CSI = csiSource
+
+	return pv, nil
+}
+
+// TranslateCSIPVToInTree takes a PV with CSIPersistentVolumeSource set and
+// translates the Azure Disk CSI source to a AzureDisk source.
+func (t *azureDiskCSITranslator) TranslateCSIPVToInTree(pv *v1.PersistentVolume) (*v1.PersistentVolume, error) {
+	if pv == nil || pv.Spec.CSI == nil {
+		return nil, fmt.Errorf("pv is nil or CSI source not defined on pv")
+	}
+	csiSource := pv.Spec.CSI
+
+	diskURI := csiSource.VolumeHandle
+	diskName, err := getDiskName(diskURI)
+	if err != nil {
+		return nil, err
+	}
+
+	// refer to https://github.com/kubernetes-sigs/azuredisk-csi-driver/blob/master/docs/driver-parameters.md
+	managed := v1.AzureManagedDisk
+	azureSource := &v1.AzureDiskVolumeSource{
+		DiskName:    diskName,
+		DataDiskURI: diskURI,
+		FSType:      &csiSource.FSType,
+		ReadOnly:    &csiSource.ReadOnly,
+		Kind:        &managed,
+	}
+
+	if csiSource.VolumeAttributes != nil {
+		for k, v := range csiSource.VolumeAttributes {
+			switch strings.ToLower(k) {
+			case azureDiskCachingMode:
+				if v != "" {
+					mode := v1.AzureDataDiskCachingMode(v)
+					azureSource.CachingMode = &mode
+				}
+			case azureDiskFSType:
+				if v != "" {
+					fsType := v
+					azureSource.FSType = &fsType
+				}
+			}
+		}
+		azureSource.Kind = &managed
+	}
+
+	pv.Spec.CSI = nil
+	pv.Spec.AzureDisk = azureSource
+
+	return pv, nil
+}
+
+// CanSupport tests whether the plugin supports a given volume
+// specification from the API.  The spec pointer should be considered
+// const.
+func (t *azureDiskCSITranslator) CanSupport(pv *v1.PersistentVolume) bool {
+	return pv != nil && pv.Spec.AzureDisk != nil
+}
+
+// CanSupportInline tests whether the plugin supports a given inline volume
+// specification from the API.  The spec pointer should be considered
+// const.
+func (t *azureDiskCSITranslator) CanSupportInline(volume *v1.Volume) bool {
+	return volume != nil && volume.AzureDisk != nil
+}
+
+// GetInTreePluginName returns the name of the intree plugin driver
+func (t *azureDiskCSITranslator) GetInTreePluginName() string {
+	return AzureDiskInTreePluginName
+}
+
+// GetCSIPluginName returns the name of the CSI plugin
+func (t *azureDiskCSITranslator) GetCSIPluginName() string {
+	return AzureDiskDriverName
+}
+
+func (t *azureDiskCSITranslator) RepairVolumeHandle(volumeHandle, nodeID string) (string, error) {
+	return volumeHandle, nil
+}
+
+func isManagedDisk(diskURI string) bool {
+	if len(diskURI) > 4 && strings.ToLower(diskURI[:4]) == "http" {
+		return false
+	}
+	return true
+}
+
+func getDiskName(diskURI string) (string, error) {
+	diskPathRE := managedDiskPathRE
+	if !isManagedDisk(diskURI) {
+		diskPathRE = unmanagedDiskPathRE
+	}
+
+	matches := diskPathRE.FindStringSubmatch(diskURI)
+	if len(matches) != 2 {
+		return "", fmt.Errorf("could not get disk name from %s, correct format: %s", diskURI, diskPathRE)
+	}
+	return matches[1], nil
+}
+
+// Replace topology values for failure domains ("<number>") to "",
+// as it's the value that the CSI driver expects.
+func (t *azureDiskCSITranslator) replaceFailureDomainsToCSI(terms []v1.TopologySelectorTerm) []v1.TopologySelectorTerm {
+	if terms == nil {
+		return nil
+	}
+
+	newTopologies := []v1.TopologySelectorTerm{}
+	for _, term := range terms {
+		newTerm := term.DeepCopy()
+		for i := range newTerm.MatchLabelExpressions {
+			exp := &newTerm.MatchLabelExpressions[i]
+			if exp.Key == AzureDiskTopologyKey {
+				for j := range exp.Values {
+					if unzonedCSIRegionRE.Match([]byte(exp.Values[j])) {
+						// Topologies "0", "1" etc are used when in-tree topology is translated to CSI in Azure
+						// regions that don't have availability zones. E.g.:
+						//    topology.kubernetes.io/region: westus
+						//    topology.kubernetes.io/zone: "0"
+						// The CSI driver uses zone "" instead of "0" in this case.
+						//    topology.disk.csi.azure.com/zone": ""
+						exp.Values[j] = ""
+					}
+				}
+			}
+		}
+		newTopologies = append(newTopologies, *newTerm)
+	}
+	return newTopologies
+}

e2e/vendor/k8s.io/csi-translation-lib/plugins/azure_file.go

@@ -0,0 +1,282 @@
+/*
+Copyright 2019 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package plugins
+
+import (
+	"fmt"
+	"regexp"
+	"strings"
+
+	v1 "k8s.io/api/core/v1"
+	storage "k8s.io/api/storage/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/klog/v2"
+)
+
+const (
+	// AzureFileDriverName is the name of the CSI driver for Azure File
+	AzureFileDriverName = "file.csi.azure.com"
+	// AzureFileInTreePluginName is the name of the intree plugin for Azure file
+	AzureFileInTreePluginName = "kubernetes.io/azure-file"
+
+	separator        = "#"
+	volumeIDTemplate = "%s#%s#%s#%s#%s"
+	// Parameter names defined in azure file CSI driver, refer to
+	// https://github.com/kubernetes-sigs/azurefile-csi-driver/blob/master/docs/driver-parameters.md
+	shareNameField          = "sharename"
+	secretNameField         = "secretname"
+	secretNamespaceField    = "secretnamespace"
+	secretNameTemplate      = "azure-storage-account-%s-secret"
+	defaultSecretNamespace  = "default"
+	resourceGroupAnnotation = "kubernetes.io/azure-file-resource-group"
+)
+
+var _ InTreePlugin = &azureFileCSITranslator{}
+
+var secretNameFormatRE = regexp.MustCompile(`azure-storage-account-(.+)-secret`)
+
+// azureFileCSITranslator handles translation of PV spec from In-tree
+// Azure File to CSI Azure File and vice versa
+type azureFileCSITranslator struct{}
+
+// NewAzureFileCSITranslator returns a new instance of azureFileTranslator
+func NewAzureFileCSITranslator() InTreePlugin {
+	return &azureFileCSITranslator{}
+}
+
+// TranslateInTreeStorageClassToCSI translates InTree Azure File storage class parameters to CSI storage class
+func (t *azureFileCSITranslator) TranslateInTreeStorageClassToCSI(logger klog.Logger, sc *storage.StorageClass) (*storage.StorageClass, error) {
+	return sc, nil
+}
+
+// TranslateInTreeInlineVolumeToCSI takes a Volume with AzureFile set from in-tree
+// and converts the AzureFile source to a CSIPersistentVolumeSource
+func (t *azureFileCSITranslator) TranslateInTreeInlineVolumeToCSI(logger klog.Logger, volume *v1.Volume, podNamespace string) (*v1.PersistentVolume, error) {
+	if volume == nil || volume.AzureFile == nil {
+		return nil, fmt.Errorf("volume is nil or Azure File not defined on volume")
+	}
+
+	azureSource := volume.AzureFile
+	accountName, err := getStorageAccountName(azureSource.SecretName)
+	if err != nil {
+		logger.V(5).Info("getStorageAccountName returned with error", "secretName", azureSource.SecretName, "err", err)
+		accountName = azureSource.SecretName
+	}
+
+	secretNamespace := defaultSecretNamespace
+	if podNamespace != "" {
+		secretNamespace = podNamespace
+	}
+	volumeID := fmt.Sprintf(volumeIDTemplate, "", accountName, azureSource.ShareName, volume.Name, secretNamespace)
+
+	var (
+		pv = &v1.PersistentVolume{
+			ObjectMeta: metav1.ObjectMeta{
+				// Must be unique as it is used as the unique part of the staging path
+				Name: volumeID,
+			},
+			Spec: v1.PersistentVolumeSpec{
+				PersistentVolumeSource: v1.PersistentVolumeSource{
+					CSI: &v1.CSIPersistentVolumeSource{
+						Driver:           AzureFileDriverName,
+						VolumeHandle:     volumeID,
+						ReadOnly:         azureSource.ReadOnly,
+						VolumeAttributes: map[string]string{shareNameField: azureSource.ShareName},
+						NodeStageSecretRef: &v1.SecretReference{
+							Name:      azureSource.SecretName,
+							Namespace: secretNamespace,
+						},
+					},
+				},
+				AccessModes: []v1.PersistentVolumeAccessMode{v1.ReadWriteMany},
+			},
+		}
+	)
+
+	return pv, nil
+}
+
+// TranslateInTreePVToCSI takes a PV with AzureFile set from in-tree
+// and converts the AzureFile source to a CSIPersistentVolumeSource
+func (t *azureFileCSITranslator) TranslateInTreePVToCSI(logger klog.Logger, pv *v1.PersistentVolume) (*v1.PersistentVolume, error) {
+	if pv == nil || pv.Spec.AzureFile == nil {
+		return nil, fmt.Errorf("pv is nil or Azure File source not defined on pv")
+	}
+
+	azureSource := pv.Spec.PersistentVolumeSource.AzureFile
+	accountName, err := getStorageAccountName(azureSource.SecretName)
+	if err != nil {
+		logger.V(5).Info("getStorageAccountName returned with error", "secretName", azureSource.SecretName, "err", err)
+		accountName = azureSource.SecretName
+	}
+	resourceGroup := ""
+	if pv.ObjectMeta.Annotations != nil {
+		if v, ok := pv.ObjectMeta.Annotations[resourceGroupAnnotation]; ok {
+			resourceGroup = v
+		}
+	}
+
+	// Secret is required when mounting a volume but pod presence cannot be assumed - we should not try to read pod now.
+	namespace := ""
+	// Try to read SecretNamespace from source pv.
+	if azureSource.SecretNamespace != nil {
+		namespace = *azureSource.SecretNamespace
+	} else {
+		// Try to read namespace from ClaimRef which should be always present.
+		if pv.Spec.ClaimRef != nil {
+			namespace = pv.Spec.ClaimRef.Namespace
+		}
+	}
+
+	if len(namespace) == 0 {
+		return nil, fmt.Errorf("could not find a secret namespace in PersistentVolumeSource or ClaimRef")
+	}
+
+	volumeID := fmt.Sprintf(volumeIDTemplate, resourceGroup, accountName, azureSource.ShareName, pv.ObjectMeta.Name, namespace)
+
+	var (
+		// refer to https://github.com/kubernetes-sigs/azurefile-csi-driver/blob/master/docs/driver-parameters.md
+		csiSource = &v1.CSIPersistentVolumeSource{
+			Driver: AzureFileDriverName,
+			NodeStageSecretRef: &v1.SecretReference{
+				Name:      azureSource.SecretName,
+				Namespace: namespace,
+			},
+			ReadOnly:         azureSource.ReadOnly,
+			VolumeAttributes: map[string]string{shareNameField: azureSource.ShareName},
+			VolumeHandle:     volumeID,
+		}
+	)
+
+	pv.Spec.PersistentVolumeSource.AzureFile = nil
+	pv.Spec.PersistentVolumeSource.CSI = csiSource
+
+	return pv, nil
+}
+
+// TranslateCSIPVToInTree takes a PV with CSIPersistentVolumeSource set and
+// translates the Azure File CSI source to a AzureFile source.
+func (t *azureFileCSITranslator) TranslateCSIPVToInTree(pv *v1.PersistentVolume) (*v1.PersistentVolume, error) {
+	if pv == nil || pv.Spec.CSI == nil {
+		return nil, fmt.Errorf("pv is nil or CSI source not defined on pv")
+	}
+	csiSource := pv.Spec.CSI
+
+	// refer to https://github.com/kubernetes-sigs/azurefile-csi-driver/blob/master/docs/driver-parameters.md
+	azureSource := &v1.AzureFilePersistentVolumeSource{
+		ReadOnly: csiSource.ReadOnly,
+	}
+
+	for k, v := range csiSource.VolumeAttributes {
+		switch strings.ToLower(k) {
+		case shareNameField:
+			azureSource.ShareName = v
+		case secretNameField:
+			azureSource.SecretName = v
+		case secretNamespaceField:
+			ns := v
+			azureSource.SecretNamespace = &ns
+		}
+	}
+
+	resourceGroup := ""
+	if csiSource.NodeStageSecretRef != nil && csiSource.NodeStageSecretRef.Name != "" {
+		azureSource.SecretName = csiSource.NodeStageSecretRef.Name
+		azureSource.SecretNamespace = &csiSource.NodeStageSecretRef.Namespace
+	}
+	if azureSource.ShareName == "" || azureSource.SecretName == "" {
+		rg, storageAccount, fileShareName, _, err := getFileShareInfo(csiSource.VolumeHandle)
+		if err != nil {
+			return nil, err
+		}
+		if azureSource.ShareName == "" {
+			azureSource.ShareName = fileShareName
+		}
+		if azureSource.SecretName == "" {
+			azureSource.SecretName = fmt.Sprintf(secretNameTemplate, storageAccount)
+		}
+		resourceGroup = rg
+	}
+
+	if azureSource.SecretNamespace == nil {
+		ns := defaultSecretNamespace
+		azureSource.SecretNamespace = &ns
+	}
+
+	pv.Spec.CSI = nil
+	pv.Spec.AzureFile = azureSource
+	if pv.ObjectMeta.Annotations == nil {
+		pv.ObjectMeta.Annotations = map[string]string{}
+	}
+	if resourceGroup != "" {
+		pv.ObjectMeta.Annotations[resourceGroupAnnotation] = resourceGroup
+	}
+
+	return pv, nil
+}
+
+// CanSupport tests whether the plugin supports a given volume
+// specification from the API.  The spec pointer should be considered
+// const.
+func (t *azureFileCSITranslator) CanSupport(pv *v1.PersistentVolume) bool {
+	return pv != nil && pv.Spec.AzureFile != nil
+}
+
+// CanSupportInline tests whether the plugin supports a given inline volume
+// specification from the API.  The spec pointer should be considered
+// const.
+func (t *azureFileCSITranslator) CanSupportInline(volume *v1.Volume) bool {
+	return volume != nil && volume.AzureFile != nil
+}
+
+// GetInTreePluginName returns the name of the intree plugin driver
+func (t *azureFileCSITranslator) GetInTreePluginName() string {
+	return AzureFileInTreePluginName
+}
+
+// GetCSIPluginName returns the name of the CSI plugin
+func (t *azureFileCSITranslator) GetCSIPluginName() string {
+	return AzureFileDriverName
+}
+
+func (t *azureFileCSITranslator) RepairVolumeHandle(volumeHandle, nodeID string) (string, error) {
+	return volumeHandle, nil
+}
+
+// get file share info according to volume id, e.g.
+// input: "rg#f5713de20cde511e8ba4900#pvc-file-dynamic-17e43f84-f474-11e8-acd0-000d3a00df41#diskname.vhd"
+// output: rg, f5713de20cde511e8ba4900, pvc-file-dynamic-17e43f84-f474-11e8-acd0-000d3a00df41, diskname.vhd
+func getFileShareInfo(id string) (string, string, string, string, error) {
+	segments := strings.Split(id, separator)
+	if len(segments) < 3 {
+		return "", "", "", "", fmt.Errorf("error parsing volume id: %q, should at least contain two #", id)
+	}
+	var diskName string
+	if len(segments) > 3 {
+		diskName = segments[3]
+	}
+	return segments[0], segments[1], segments[2], diskName, nil
+}
+
+// get storage account name from secret name
+func getStorageAccountName(secretName string) (string, error) {
+	matches := secretNameFormatRE.FindStringSubmatch(secretName)
+	if len(matches) != 2 {
+		return "", fmt.Errorf("could not get account name from %s, correct format: %s", secretName, secretNameFormatRE)
+	}
+	return matches[1], nil
+}

e2e/vendor/k8s.io/csi-translation-lib/plugins/const.go

@@ -0,0 +1,21 @@
+/*
+Copyright 2020 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package plugins
+
+// Matches the delimiter LabelMultiZoneDelimiter used by k8s.io/cloud-provider/volume and is mirrored here to avoid a large dependency
+// labelMultiZoneDelimiter separates zones for volumes
+const labelMultiZoneDelimiter = "__"

e2e/vendor/k8s.io/csi-translation-lib/plugins/gce_pd.go

@@ -0,0 +1,400 @@
+/*
+Copyright 2019 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package plugins
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+
+	v1 "k8s.io/api/core/v1"
+	storage "k8s.io/api/storage/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/util/sets"
+	"k8s.io/klog/v2"
+)
+
+const (
+	// GCEPDDriverName is the name of the CSI driver for GCE PD
+	GCEPDDriverName = "pd.csi.storage.gke.io"
+	// GCEPDInTreePluginName is the name of the intree plugin for GCE PD
+	GCEPDInTreePluginName = "kubernetes.io/gce-pd"
+
+	// GCEPDTopologyKey is the zonal topology key for GCE PD CSI Driver
+	GCEPDTopologyKey = "topology.gke.io/zone"
+
+	// Volume ID Expected Format
+	// "projects/{projectName}/zones/{zoneName}/disks/{diskName}"
+	volIDZonalFmt = "projects/%s/zones/%s/disks/%s"
+	// "projects/{projectName}/regions/{regionName}/disks/{diskName}"
+	volIDRegionalFmt      = "projects/%s/regions/%s/disks/%s"
+	volIDProjectValue     = 1
+	volIDRegionalityValue = 2
+	volIDZoneValue        = 3
+	volIDDiskNameValue    = 5
+	volIDTotalElements    = 6
+
+	nodeIDFmt = "projects/%s/zones/%s/instances/%s"
+
+	// UnspecifiedValue is used for an unknown zone string
+	UnspecifiedValue = "UNSPECIFIED"
+)
+
+var _ InTreePlugin = &gcePersistentDiskCSITranslator{}
+
+// gcePersistentDiskCSITranslator handles translation of PV spec from In-tree
+// GCE PD to CSI GCE PD and vice versa
+type gcePersistentDiskCSITranslator struct{}
+
+// NewGCEPersistentDiskCSITranslator returns a new instance of gcePersistentDiskTranslator
+func NewGCEPersistentDiskCSITranslator() InTreePlugin {
+	return &gcePersistentDiskCSITranslator{}
+}
+
+func generateToplogySelectors(key string, values []string) []v1.TopologySelectorTerm {
+	return []v1.TopologySelectorTerm{
+		{
+			MatchLabelExpressions: []v1.TopologySelectorLabelRequirement{
+				{
+					Key:    key,
+					Values: values,
+				},
+			},
+		},
+	}
+}
+
+// TranslateInTreeStorageClassToCSI translates InTree GCE storage class parameters to CSI storage class
+func (g *gcePersistentDiskCSITranslator) TranslateInTreeStorageClassToCSI(logger klog.Logger, sc *storage.StorageClass) (*storage.StorageClass, error) {
+	var generatedTopologies []v1.TopologySelectorTerm
+
+	np := map[string]string{}
+	for k, v := range sc.Parameters {
+		switch strings.ToLower(k) {
+		case fsTypeKey:
+			// prefixed fstype parameter is stripped out by external provisioner
+			np[csiFsTypeKey] = v
+		// Strip out zone and zones parameters and translate them into topologies instead
+		case zoneKey:
+			generatedTopologies = generateToplogySelectors(GCEPDTopologyKey, []string{v})
+		case zonesKey:
+			generatedTopologies = generateToplogySelectors(GCEPDTopologyKey, strings.Split(v, ","))
+		default:
+			np[k] = v
+		}
+	}
+
+	if len(generatedTopologies) > 0 && len(sc.AllowedTopologies) > 0 {
+		return nil, fmt.Errorf("cannot simultaneously set allowed topologies and zone/zones parameters")
+	} else if len(generatedTopologies) > 0 {
+		sc.AllowedTopologies = generatedTopologies
+	} else if len(sc.AllowedTopologies) > 0 {
+		newTopologies, err := translateAllowedTopologies(sc.AllowedTopologies, GCEPDTopologyKey)
+		if err != nil {
+			return nil, fmt.Errorf("failed translating allowed topologies: %v", err)
+		}
+		sc.AllowedTopologies = newTopologies
+	}
+
+	sc.Parameters = np
+
+	return sc, nil
+}
+
+// backwardCompatibleAccessModes translates all instances of ReadWriteMany
+// access mode from the in-tree plugin to ReadWriteOnce. This is because in-tree
+// plugin never supported ReadWriteMany but also did not validate or enforce
+// this access mode for pre-provisioned volumes. The GCE PD CSI Driver validates
+// and enforces (fails) ReadWriteMany. Therefore we treat all in-tree
+// ReadWriteMany as ReadWriteOnce volumes to not break legacy volumes. It also
+// takes [ReadWriteOnce, ReadOnlyMany] and makes it ReadWriteOnce. This is
+// because the in-tree plugin does not enforce access modes and just attaches
+// the disk in ReadWriteOnce mode; however, the CSI external-attacher will fail
+// this combination because technically [ReadWriteOnce, ReadOnlyMany] is not
+// supportable on an attached volume
+// See: https://github.com/kubernetes-csi/external-attacher/issues/153
+func backwardCompatibleAccessModes(ams []v1.PersistentVolumeAccessMode) []v1.PersistentVolumeAccessMode {
+	if ams == nil {
+		return nil
+	}
+
+	s := map[v1.PersistentVolumeAccessMode]bool{}
+	var newAM []v1.PersistentVolumeAccessMode
+
+	for _, am := range ams {
+		if am == v1.ReadWriteMany {
+			// ReadWriteMany is unsupported in CSI, but in-tree did no
+			// validation and treated it as ReadWriteOnce
+			s[v1.ReadWriteOnce] = true
+		} else {
+			s[am] = true
+		}
+	}
+
+	switch {
+	case s[v1.ReadOnlyMany] && s[v1.ReadWriteOnce]:
+		// ROX,RWO is unsupported in CSI, but in-tree did not validation and
+		// treated it as ReadWriteOnce
+		newAM = []v1.PersistentVolumeAccessMode{v1.ReadWriteOnce}
+	case s[v1.ReadWriteOnce]:
+		newAM = []v1.PersistentVolumeAccessMode{v1.ReadWriteOnce}
+	case s[v1.ReadOnlyMany]:
+		newAM = []v1.PersistentVolumeAccessMode{v1.ReadOnlyMany}
+	default:
+		newAM = []v1.PersistentVolumeAccessMode{v1.ReadWriteOnce}
+	}
+
+	return newAM
+}
+
+// TranslateInTreeInlineVolumeToCSI takes a Volume with GCEPersistentDisk set from in-tree
+// and converts the GCEPersistentDisk source to a CSIPersistentVolumeSource
+func (g *gcePersistentDiskCSITranslator) TranslateInTreeInlineVolumeToCSI(logger klog.Logger, volume *v1.Volume, podNamespace string) (*v1.PersistentVolume, error) {
+	if volume == nil || volume.GCEPersistentDisk == nil {
+		return nil, fmt.Errorf("volume is nil or GCE PD not defined on volume")
+	}
+
+	pdSource := volume.GCEPersistentDisk
+
+	partition := ""
+	if pdSource.Partition != 0 {
+		partition = strconv.Itoa(int(pdSource.Partition))
+	}
+
+	var am v1.PersistentVolumeAccessMode
+	if pdSource.ReadOnly {
+		am = v1.ReadOnlyMany
+	} else {
+		am = v1.ReadWriteOnce
+	}
+
+	fsMode := v1.PersistentVolumeFilesystem
+	return &v1.PersistentVolume{
+		ObjectMeta: metav1.ObjectMeta{
+			// Must be unique per disk as it is used as the unique part of the
+			// staging path
+			Name: fmt.Sprintf("%s-%s", GCEPDDriverName, pdSource.PDName),
+		},
+		Spec: v1.PersistentVolumeSpec{
+			PersistentVolumeSource: v1.PersistentVolumeSource{
+				CSI: &v1.CSIPersistentVolumeSource{
+					Driver:       GCEPDDriverName,
+					VolumeHandle: fmt.Sprintf(volIDZonalFmt, UnspecifiedValue, UnspecifiedValue, pdSource.PDName),
+					ReadOnly:     pdSource.ReadOnly,
+					FSType:       pdSource.FSType,
+					VolumeAttributes: map[string]string{
+						"partition": partition,
+					},
+				},
+			},
+			AccessModes: []v1.PersistentVolumeAccessMode{am},
+			VolumeMode:  &fsMode,
+		},
+	}, nil
+}
+
+// TranslateInTreePVToCSI takes a PV with GCEPersistentDisk set from in-tree
+// and converts the GCEPersistentDisk source to a CSIPersistentVolumeSource
+func (g *gcePersistentDiskCSITranslator) TranslateInTreePVToCSI(logger klog.Logger, pv *v1.PersistentVolume) (*v1.PersistentVolume, error) {
+	var volID string
+
+	if pv == nil || pv.Spec.GCEPersistentDisk == nil {
+		return nil, fmt.Errorf("pv is nil or GCE Persistent Disk source not defined on pv")
+	}
+
+	// depend on which version it migrates from, the label could be failuredomain beta or topology GA version
+	zonesLabel := pv.Labels[v1.LabelFailureDomainBetaZone]
+	if zonesLabel == "" {
+		zonesLabel = pv.Labels[v1.LabelTopologyZone]
+	}
+
+	zones := strings.Split(zonesLabel, labelMultiZoneDelimiter)
+	if len(zones) == 1 && len(zones[0]) != 0 {
+		// Zonal
+		volID = fmt.Sprintf(volIDZonalFmt, UnspecifiedValue, zones[0], pv.Spec.GCEPersistentDisk.PDName)
+	} else if len(zones) > 1 {
+		// Regional
+		region, err := gceGetRegionFromZones(zones)
+		if err != nil {
+			return nil, fmt.Errorf("failed to get region from zones: %v", err)
+		}
+		volID = fmt.Sprintf(volIDRegionalFmt, UnspecifiedValue, region, pv.Spec.GCEPersistentDisk.PDName)
+	} else {
+		// Unspecified
+		volID = fmt.Sprintf(volIDZonalFmt, UnspecifiedValue, UnspecifiedValue, pv.Spec.GCEPersistentDisk.PDName)
+	}
+
+	gceSource := pv.Spec.PersistentVolumeSource.GCEPersistentDisk
+
+	partition := ""
+	if gceSource.Partition != 0 {
+		partition = strconv.Itoa(int(gceSource.Partition))
+	}
+
+	csiSource := &v1.CSIPersistentVolumeSource{
+		Driver:       GCEPDDriverName,
+		VolumeHandle: volID,
+		ReadOnly:     gceSource.ReadOnly,
+		FSType:       gceSource.FSType,
+		VolumeAttributes: map[string]string{
+			"partition": partition,
+		},
+	}
+
+	if err := translateTopologyFromInTreeToCSI(pv, GCEPDTopologyKey); err != nil {
+		return nil, fmt.Errorf("failed to translate topology: %v", err)
+	}
+
+	pv.Spec.PersistentVolumeSource.GCEPersistentDisk = nil
+	pv.Spec.PersistentVolumeSource.CSI = csiSource
+	pv.Spec.AccessModes = backwardCompatibleAccessModes(pv.Spec.AccessModes)
+
+	return pv, nil
+}
+
+// TranslateCSIPVToInTree takes a PV with CSIPersistentVolumeSource set and
+// translates the GCE PD CSI source to a GCEPersistentDisk source.
+func (g *gcePersistentDiskCSITranslator) TranslateCSIPVToInTree(pv *v1.PersistentVolume) (*v1.PersistentVolume, error) {
+	if pv == nil || pv.Spec.CSI == nil {
+		return nil, fmt.Errorf("pv is nil or CSI source not defined on pv")
+	}
+	csiSource := pv.Spec.CSI
+
+	pdName, err := pdNameFromVolumeID(csiSource.VolumeHandle)
+	if err != nil {
+		return nil, err
+	}
+
+	gceSource := &v1.GCEPersistentDiskVolumeSource{
+		PDName:   pdName,
+		FSType:   csiSource.FSType,
+		ReadOnly: csiSource.ReadOnly,
+	}
+	if partition, ok := csiSource.VolumeAttributes["partition"]; ok && partition != "" {
+		partInt, err := strconv.Atoi(partition)
+		if err != nil {
+			return nil, fmt.Errorf("Failed to convert partition %v to integer: %v", partition, err)
+		}
+		gceSource.Partition = int32(partInt)
+	}
+
+	// translate CSI topology to In-tree topology for rollback compatibility
+	if err := translateTopologyFromCSIToInTree(pv, GCEPDTopologyKey, gceGetRegionFromZones); err != nil {
+		return nil, fmt.Errorf("failed to translate topology. PV:%+v. Error:%v", *pv, err)
+	}
+
+	pv.Spec.CSI = nil
+	pv.Spec.GCEPersistentDisk = gceSource
+
+	return pv, nil
+}
+
+// CanSupport tests whether the plugin supports a given persistent volume
+// specification from the API.  The spec pointer should be considered
+// const.
+func (g *gcePersistentDiskCSITranslator) CanSupport(pv *v1.PersistentVolume) bool {
+	return pv != nil && pv.Spec.GCEPersistentDisk != nil
+}
+
+// CanSupportInline tests whether the plugin supports a given inline volume
+// specification from the API.  The spec pointer should be considered
+// const.
+func (g *gcePersistentDiskCSITranslator) CanSupportInline(volume *v1.Volume) bool {
+	return volume != nil && volume.GCEPersistentDisk != nil
+}
+
+// GetInTreePluginName returns the name of the intree plugin driver
+func (g *gcePersistentDiskCSITranslator) GetInTreePluginName() string {
+	return GCEPDInTreePluginName
+}
+
+// GetCSIPluginName returns the name of the CSI plugin
+func (g *gcePersistentDiskCSITranslator) GetCSIPluginName() string {
+	return GCEPDDriverName
+}
+
+// RepairVolumeHandle returns a fully specified volume handle by inferring
+// project, zone/region from the node ID if the volume handle has UNSPECIFIED
+// sections
+func (g *gcePersistentDiskCSITranslator) RepairVolumeHandle(volumeHandle, nodeID string) (string, error) {
+	var err error
+	tok := strings.Split(volumeHandle, "/")
+	if len(tok) < volIDTotalElements {
+		return "", fmt.Errorf("volume handle has wrong number of elements; got %v, wanted %v or more", len(tok), volIDTotalElements)
+	}
+	if tok[volIDProjectValue] != UnspecifiedValue {
+		return volumeHandle, nil
+	}
+
+	nodeTok := strings.Split(nodeID, "/")
+	if len(nodeTok) < volIDTotalElements {
+		return "", fmt.Errorf("node handle has wrong number of elements; got %v, wanted %v or more", len(nodeTok), volIDTotalElements)
+	}
+
+	switch tok[volIDRegionalityValue] {
+	case "zones":
+		zone := ""
+		if tok[volIDZoneValue] == UnspecifiedValue {
+			zone = nodeTok[volIDZoneValue]
+		} else {
+			zone = tok[volIDZoneValue]
+		}
+		return fmt.Sprintf(volIDZonalFmt, nodeTok[volIDProjectValue], zone, tok[volIDDiskNameValue]), nil
+	case "regions":
+		region := ""
+		if tok[volIDZoneValue] == UnspecifiedValue {
+			region, err = gceGetRegionFromZones([]string{nodeTok[volIDZoneValue]})
+			if err != nil {
+				return "", fmt.Errorf("failed to get region from zone %s: %v", nodeTok[volIDZoneValue], err)
+			}
+		} else {
+			region = tok[volIDZoneValue]
+		}
+		return fmt.Sprintf(volIDRegionalFmt, nodeTok[volIDProjectValue], region, tok[volIDDiskNameValue]), nil
+	default:
+		return "", fmt.Errorf("expected volume handle to have zones or regions regionality value, got: %s", tok[volIDRegionalityValue])
+	}
+}
+
+func pdNameFromVolumeID(id string) (string, error) {
+	splitID := strings.Split(id, "/")
+	if len(splitID) < volIDTotalElements {
+		return "", fmt.Errorf("failed to get id components.Got: %v, wanted %v components or more. ", len(splitID), volIDTotalElements)
+	}
+	return splitID[volIDDiskNameValue], nil
+}
+
+// TODO: Replace this with the imported one from GCE PD CSI Driver when
+// the driver removes all k8s/k8s dependencies
+func gceGetRegionFromZones(zones []string) (string, error) {
+	regions := sets.String{}
+	if len(zones) < 1 {
+		return "", fmt.Errorf("no zones specified")
+	}
+	for _, zone := range zones {
+		// Zone expected format {locale}-{region}-{zone}
+		splitZone := strings.Split(zone, "-")
+		if len(splitZone) != 3 {
+			return "", fmt.Errorf("zone in unexpected format, expected: {locale}-{region}-{zone}, got: %v", zone)
+		}
+		regions.Insert(strings.Join(splitZone[0:2], "-"))
+	}
+	if regions.Len() != 1 {
+		return "", fmt.Errorf("multiple or no regions gotten from zones, got: %v", regions)
+	}
+	return regions.UnsortedList()[0], nil
+}

e2e/vendor/k8s.io/csi-translation-lib/plugins/in_tree_volume.go

@@ -0,0 +1,398 @@
+/*
+Copyright 2019 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package plugins
+
+import (
+	"errors"
+	"fmt"
+	"sort"
+	"strings"
+
+	v1 "k8s.io/api/core/v1"
+	storage "k8s.io/api/storage/v1"
+	"k8s.io/apimachinery/pkg/util/sets"
+	"k8s.io/klog/v2"
+)
+
+// InTreePlugin handles translations between CSI and in-tree sources in a PV
+type InTreePlugin interface {
+
+	// TranslateInTreeStorageClassToCSI takes in-tree volume options
+	// and translates them to a volume options consumable by CSI plugin
+	TranslateInTreeStorageClassToCSI(logger klog.Logger, sc *storage.StorageClass) (*storage.StorageClass, error)
+
+	// TranslateInTreeInlineVolumeToCSI takes a inline volume and will translate
+	// the in-tree inline volume source to a CSIPersistentVolumeSource
+	// A PV object containing the CSIPersistentVolumeSource in it's spec is returned
+	// podNamespace is only needed for azurefile to fetch secret namespace, no need to be set for other plugins.
+	TranslateInTreeInlineVolumeToCSI(logger klog.Logger, volume *v1.Volume, podNamespace string) (*v1.PersistentVolume, error)
+
+	// TranslateInTreePVToCSI takes a persistent volume and will translate
+	// the in-tree pv source to a CSI Source. The input persistent volume can be modified
+	TranslateInTreePVToCSI(logger klog.Logger, pv *v1.PersistentVolume) (*v1.PersistentVolume, error)
+
+	// TranslateCSIPVToInTree takes a PV with a CSI PersistentVolume Source and will translate
+	// it to a in-tree Persistent Volume Source for the in-tree volume
+	// by the `Driver` field in the CSI Source. The input PV object can be modified
+	TranslateCSIPVToInTree(pv *v1.PersistentVolume) (*v1.PersistentVolume, error)
+
+	// CanSupport tests whether the plugin supports a given persistent volume
+	// specification from the API.
+	CanSupport(pv *v1.PersistentVolume) bool
+
+	// CanSupportInline tests whether the plugin supports a given inline volume
+	// specification from the API.
+	CanSupportInline(vol *v1.Volume) bool
+
+	// GetInTreePluginName returns the in-tree plugin name this migrates
+	GetInTreePluginName() string
+
+	// GetCSIPluginName returns the name of the CSI plugin that supersedes the in-tree plugin
+	GetCSIPluginName() string
+
+	// RepairVolumeHandle generates a correct volume handle based on node ID information.
+	RepairVolumeHandle(volumeHandle, nodeID string) (string, error)
+}
+
+const (
+	// fsTypeKey is the deprecated storage class parameter key for fstype
+	fsTypeKey = "fstype"
+	// csiFsTypeKey is the storage class parameter key for CSI fstype
+	csiFsTypeKey = "csi.storage.k8s.io/fstype"
+	// zoneKey is the deprecated storage class parameter key for zone
+	zoneKey = "zone"
+	// zonesKey is the deprecated storage class parameter key for zones
+	zonesKey = "zones"
+)
+
+// replaceTopology overwrites an existing key in NodeAffinity by a new one.
+// If there are any newKey already exist in an expression of a term, we will
+// not combine the replaced key Values with the existing ones.
+// So there might be duplication if there is any newKey expression
+// already in the terms.
+func replaceTopology(pv *v1.PersistentVolume, oldKey, newKey string) error {
+	// Make sure the necessary fields exist
+	if pv == nil || pv.Spec.NodeAffinity == nil || pv.Spec.NodeAffinity.Required == nil ||
+		pv.Spec.NodeAffinity.Required.NodeSelectorTerms == nil || len(pv.Spec.NodeAffinity.Required.NodeSelectorTerms) == 0 {
+		return nil
+	}
+	for i := range pv.Spec.NodeAffinity.Required.NodeSelectorTerms {
+		for j, r := range pv.Spec.NodeAffinity.Required.NodeSelectorTerms[i].MatchExpressions {
+			if r.Key == oldKey {
+				pv.Spec.NodeAffinity.Required.NodeSelectorTerms[i].MatchExpressions[j].Key = newKey
+			}
+		}
+	}
+
+	return nil
+}
+
+// getTopologyValues returns all unique topology values with the given key found in
+// the PV NodeAffinity. Sort by alphabetical order.
+// This function collapses multiple zones into a list that is ORed. This assumes that
+// the plugin does not support a constraint like key in "zone1" AND "zone2"
+func getTopologyValues(pv *v1.PersistentVolume, key string) []string {
+	if pv.Spec.NodeAffinity == nil ||
+		pv.Spec.NodeAffinity.Required == nil ||
+		len(pv.Spec.NodeAffinity.Required.NodeSelectorTerms) < 1 {
+		return nil
+	}
+
+	values := make(map[string]bool)
+	for i := range pv.Spec.NodeAffinity.Required.NodeSelectorTerms {
+		for _, r := range pv.Spec.NodeAffinity.Required.NodeSelectorTerms[i].MatchExpressions {
+			if r.Key == key {
+				for _, v := range r.Values {
+					values[v] = true
+				}
+			}
+		}
+	}
+	// remove duplication and sort them in order for better usage
+	var re []string
+	for k := range values {
+		re = append(re, k)
+	}
+	sort.Strings(re)
+	return re
+}
+
+// addTopology appends the topology to the given PV to all Terms.
+func addTopology(pv *v1.PersistentVolume, topologyKey string, zones []string) error {
+	// Make sure there are no duplicate or empty strings
+	filteredZones := sets.String{}
+	for i := range zones {
+		zone := strings.TrimSpace(zones[i])
+		if len(zone) > 0 {
+			filteredZones.Insert(zone)
+		}
+	}
+
+	zones = filteredZones.List()
+	if len(zones) < 1 {
+		return errors.New("there are no valid zones to add to pv")
+	}
+
+	// Make sure the necessary fields exist
+	if pv.Spec.NodeAffinity == nil {
+		pv.Spec.NodeAffinity = new(v1.VolumeNodeAffinity)
+	}
+
+	if pv.Spec.NodeAffinity.Required == nil {
+		pv.Spec.NodeAffinity.Required = new(v1.NodeSelector)
+	}
+
+	if len(pv.Spec.NodeAffinity.Required.NodeSelectorTerms) == 0 {
+		pv.Spec.NodeAffinity.Required.NodeSelectorTerms = make([]v1.NodeSelectorTerm, 1)
+	}
+
+	topology := v1.NodeSelectorRequirement{
+		Key:      topologyKey,
+		Operator: v1.NodeSelectorOpIn,
+		Values:   zones,
+	}
+
+	// add the CSI topology to each term
+	for i := range pv.Spec.NodeAffinity.Required.NodeSelectorTerms {
+		pv.Spec.NodeAffinity.Required.NodeSelectorTerms[i].MatchExpressions = append(
+			pv.Spec.NodeAffinity.Required.NodeSelectorTerms[i].MatchExpressions,
+			topology,
+		)
+	}
+
+	return nil
+}
+
+// translateTopologyFromInTreeToCSI converts existing zone labels or in-tree topology to CSI topology.
+// In-tree topology has precedence over zone labels. When both in-tree topology and zone labels exist
+// for a particular CSI topology, in-tree topology will be used.
+// This function will remove the Beta version Kubernetes topology label in case the node upgrade to a
+// newer version where it does not have any Beta topology label anymore
+func translateTopologyFromInTreeToCSI(pv *v1.PersistentVolume, csiTopologyKey string) error {
+
+	zoneLabel, regionLabel := getTopologyLabel(pv)
+
+	// If Zone kubernetes topology exist, replace it to use csiTopologyKey
+	zones := getTopologyValues(pv, zoneLabel)
+	if len(zones) > 0 {
+		replaceTopology(pv, zoneLabel, csiTopologyKey)
+	} else {
+		// if nothing is in the NodeAffinity, try to fetch the topology from PV labels
+		if label, ok := pv.Labels[zoneLabel]; ok {
+			zones = strings.Split(label, labelMultiZoneDelimiter)
+			if len(zones) > 0 {
+				addTopology(pv, csiTopologyKey, zones)
+			}
+		}
+	}
+
+	// if the in-tree PV has beta region label, replace it with GA label to ensure
+	// the scheduler is able to schedule it on new nodes with only GA kubernetes label
+	// No need to check it for zone label because it has already been replaced if exist
+	if regionLabel == v1.LabelFailureDomainBetaRegion {
+		regions := getTopologyValues(pv, regionLabel)
+		if len(regions) > 0 {
+			replaceTopology(pv, regionLabel, v1.LabelTopologyRegion)
+		}
+	}
+
+	return nil
+}
+
+// getTopologyLabel checks if the kubernetes topology label used in this
+// PV is GA and return the zone/region label used.
+// The version checking follows the following orders
+//  1. Check NodeAffinity
+//     1.1 Check if zoneGA exists, if yes return GA labels
+//     1.2 Check if zoneBeta exists, if yes return Beta labels
+//  2. Check PV labels
+//     2.1 Check if zoneGA exists, if yes return GA labels
+//     2.2 Check if zoneBeta exists, if yes return Beta labels
+func getTopologyLabel(pv *v1.PersistentVolume) (zoneLabel string, regionLabel string) {
+
+	if zoneGA := TopologyKeyExist(v1.LabelTopologyZone, pv.Spec.NodeAffinity); zoneGA {
+		return v1.LabelTopologyZone, v1.LabelTopologyRegion
+	}
+	if zoneBeta := TopologyKeyExist(v1.LabelFailureDomainBetaZone, pv.Spec.NodeAffinity); zoneBeta {
+		return v1.LabelFailureDomainBetaZone, v1.LabelFailureDomainBetaRegion
+	}
+	if _, zoneGA := pv.Labels[v1.LabelTopologyZone]; zoneGA {
+		return v1.LabelTopologyZone, v1.LabelTopologyRegion
+	}
+	if _, zoneBeta := pv.Labels[v1.LabelFailureDomainBetaZone]; zoneBeta {
+		return v1.LabelFailureDomainBetaZone, v1.LabelFailureDomainBetaRegion
+	}
+	// No labels or NodeAffinity exist, default to GA version
+	return v1.LabelTopologyZone, v1.LabelTopologyRegion
+}
+
+// TopologyKeyExist checks if a certain key exists in a VolumeNodeAffinity
+func TopologyKeyExist(key string, vna *v1.VolumeNodeAffinity) bool {
+	if vna == nil || vna.Required == nil || vna.Required.NodeSelectorTerms == nil || len(vna.Required.NodeSelectorTerms) == 0 {
+		return false
+	}
+
+	for _, nodeSelectorTerms := range vna.Required.NodeSelectorTerms {
+		nsrequirements := nodeSelectorTerms.MatchExpressions
+		for _, nodeSelectorRequirement := range nsrequirements {
+			if nodeSelectorRequirement.Key == key {
+				return true
+			}
+		}
+	}
+	return false
+}
+
+type regionParserFn func([]string) (string, error)
+
+// translateTopologyFromCSIToInTree translate a CSI topology to
+// Kubernetes topology and add topology labels to it. Note that this function
+// will only work for plugin with a single topologyKey that translates to
+// Kubernetes zone(and region if regionParser is passed in).
+// If a plugin has more than one topologyKey, it will need to be processed
+// separately by the plugin.
+// If regionParser is nil, no region NodeAffinity will be added. If not nil,
+// it'll be passed to regionTopologyHandler, which will add region topology NodeAffinity
+// and labels for the given PV. It assumes the Zone NodeAffinity already exists.
+// In short this function will,
+// 1. Replace all CSI topology to Kubernetes Zone topology label
+// 2. Process and generate region topology if a regionParser is passed
+// 3. Add Kubernetes Topology labels(zone) if they do not exist
+func translateTopologyFromCSIToInTree(pv *v1.PersistentVolume, csiTopologyKey string, regionParser regionParserFn) error {
+
+	zoneLabel, _ := getTopologyLabel(pv)
+
+	// 1. Replace all CSI topology to Kubernetes Zone label
+	err := replaceTopology(pv, csiTopologyKey, zoneLabel)
+	if err != nil {
+		return fmt.Errorf("Failed to replace CSI topology to Kubernetes topology, error: %v", err)
+	}
+
+	// 2. Take care of region topology if a regionParser is passed
+	if regionParser != nil {
+		// let's make less strict on this one. Even if there is an error in the region processing, just ignore it
+		err = regionTopologyHandler(pv, regionParser)
+		if err != nil {
+			return fmt.Errorf("Failed to handle region topology. error: %v", err)
+		}
+	}
+
+	// 3. Add labels about Kubernetes Topology
+	zoneVals := getTopologyValues(pv, zoneLabel)
+	if len(zoneVals) > 0 {
+		if pv.Labels == nil {
+			pv.Labels = make(map[string]string)
+		}
+		_, zoneOK := pv.Labels[zoneLabel]
+		if !zoneOK {
+			zoneValStr := strings.Join(zoneVals, labelMultiZoneDelimiter)
+			pv.Labels[zoneLabel] = zoneValStr
+		}
+	}
+
+	return nil
+}
+
+// translateAllowedTopologies translates allowed topologies within storage class or PV
+// from legacy failure domain to given CSI topology key
+func translateAllowedTopologies(terms []v1.TopologySelectorTerm, key string) ([]v1.TopologySelectorTerm, error) {
+	if terms == nil {
+		return nil, nil
+	}
+
+	newTopologies := []v1.TopologySelectorTerm{}
+	for _, term := range terms {
+		newTerm := v1.TopologySelectorTerm{}
+		for _, exp := range term.MatchLabelExpressions {
+			var newExp v1.TopologySelectorLabelRequirement
+			if exp.Key == v1.LabelFailureDomainBetaZone || exp.Key == v1.LabelTopologyZone {
+				newExp = v1.TopologySelectorLabelRequirement{
+					Key:    key,
+					Values: exp.Values,
+				}
+			} else {
+				// Other topologies are passed through unchanged.
+				newExp = exp
+			}
+			newTerm.MatchLabelExpressions = append(newTerm.MatchLabelExpressions, newExp)
+		}
+		newTopologies = append(newTopologies, newTerm)
+	}
+	return newTopologies, nil
+}
+
+// regionTopologyHandler will process the PV and add region
+// kubernetes topology label to its NodeAffinity and labels
+// It assumes the Zone NodeAffinity already exists
+// Each provider is responsible for providing their own regionParser
+func regionTopologyHandler(pv *v1.PersistentVolume, regionParser regionParserFn) error {
+
+	// Make sure the necessary fields exist
+	if pv == nil || pv.Spec.NodeAffinity == nil || pv.Spec.NodeAffinity.Required == nil ||
+		pv.Spec.NodeAffinity.Required.NodeSelectorTerms == nil || len(pv.Spec.NodeAffinity.Required.NodeSelectorTerms) == 0 {
+		return nil
+	}
+
+	zoneLabel, regionLabel := getTopologyLabel(pv)
+
+	// process each term
+	for index, nodeSelectorTerm := range pv.Spec.NodeAffinity.Required.NodeSelectorTerms {
+		// In the first loop, see if regionLabel already exist
+		regionExist := false
+		var zoneVals []string
+		for _, nsRequirement := range nodeSelectorTerm.MatchExpressions {
+			if nsRequirement.Key == regionLabel {
+				regionExist = true
+				break
+			} else if nsRequirement.Key == zoneLabel {
+				zoneVals = append(zoneVals, nsRequirement.Values...)
+			}
+		}
+		if regionExist {
+			// Regionlabel already exist in this term, skip it
+			continue
+		}
+		// If no regionLabel found, generate region label from the zoneLabel we collect from this term
+		regionVal, err := regionParser(zoneVals)
+		if err != nil {
+			return err
+		}
+		// Add the regionVal to this term
+		pv.Spec.NodeAffinity.Required.NodeSelectorTerms[index].MatchExpressions =
+			append(pv.Spec.NodeAffinity.Required.NodeSelectorTerms[index].MatchExpressions, v1.NodeSelectorRequirement{
+				Key:      regionLabel,
+				Operator: v1.NodeSelectorOpIn,
+				Values:   []string{regionVal},
+			})
+
+	}
+
+	// Add region label
+	regionVals := getTopologyValues(pv, regionLabel)
+	if len(regionVals) == 1 {
+		// We should only have exactly 1 region value
+		if pv.Labels == nil {
+			pv.Labels = make(map[string]string)
+		}
+		_, regionOK := pv.Labels[regionLabel]
+		if !regionOK {
+			pv.Labels[regionLabel] = regionVals[0]
+		}
+	}
+
+	return nil
+}

e2e/vendor/k8s.io/csi-translation-lib/plugins/openstack_cinder.go

@@ -0,0 +1,185 @@
+/*
+Copyright 2019 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package plugins
+
+import (
+	"fmt"
+	"strings"
+
+	v1 "k8s.io/api/core/v1"
+	storage "k8s.io/api/storage/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/klog/v2"
+)
+
+const (
+	// CinderDriverName is the name of the CSI driver for Cinder
+	CinderDriverName = "cinder.csi.openstack.org"
+	// CinderTopologyKey is the zonal topology key for Cinder CSI Driver
+	CinderTopologyKey = "topology.cinder.csi.openstack.org/zone"
+	// CinderInTreePluginName is the name of the intree plugin for Cinder
+	CinderInTreePluginName = "kubernetes.io/cinder"
+)
+
+var _ InTreePlugin = (*osCinderCSITranslator)(nil)
+
+// osCinderCSITranslator handles translation of PV spec from In-tree Cinder to CSI Cinder and vice versa
+type osCinderCSITranslator struct{}
+
+// NewOpenStackCinderCSITranslator returns a new instance of osCinderCSITranslator
+func NewOpenStackCinderCSITranslator() InTreePlugin {
+	return &osCinderCSITranslator{}
+}
+
+// TranslateInTreeStorageClassToCSI translates InTree Cinder storage class parameters to CSI storage class
+func (t *osCinderCSITranslator) TranslateInTreeStorageClassToCSI(logger klog.Logger, sc *storage.StorageClass) (*storage.StorageClass, error) {
+	var (
+		params = map[string]string{}
+	)
+	for k, v := range sc.Parameters {
+		switch strings.ToLower(k) {
+		case fsTypeKey:
+			params[csiFsTypeKey] = v
+		default:
+			// All other parameters are supported by the CSI driver.
+			// This includes also "availability", therefore do not translate it to sc.AllowedTopologies
+			params[k] = v
+		}
+	}
+
+	if len(sc.AllowedTopologies) > 0 {
+		newTopologies, err := translateAllowedTopologies(sc.AllowedTopologies, CinderTopologyKey)
+		if err != nil {
+			return nil, fmt.Errorf("failed translating allowed topologies: %v", err)
+		}
+		sc.AllowedTopologies = newTopologies
+	}
+
+	sc.Parameters = params
+
+	return sc, nil
+}
+
+// TranslateInTreeInlineVolumeToCSI takes a Volume with Cinder set from in-tree
+// and converts the Cinder source to a CSIPersistentVolumeSource
+func (t *osCinderCSITranslator) TranslateInTreeInlineVolumeToCSI(logger klog.Logger, volume *v1.Volume, podNamespace string) (*v1.PersistentVolume, error) {
+	if volume == nil || volume.Cinder == nil {
+		return nil, fmt.Errorf("volume is nil or Cinder not defined on volume")
+	}
+
+	cinderSource := volume.Cinder
+	pv := &v1.PersistentVolume{
+		ObjectMeta: metav1.ObjectMeta{
+			// Must be unique per disk as it is used as the unique part of the
+			// staging path
+			Name: fmt.Sprintf("%s-%s", CinderDriverName, cinderSource.VolumeID),
+		},
+		Spec: v1.PersistentVolumeSpec{
+			PersistentVolumeSource: v1.PersistentVolumeSource{
+				CSI: &v1.CSIPersistentVolumeSource{
+					Driver:           CinderDriverName,
+					VolumeHandle:     cinderSource.VolumeID,
+					ReadOnly:         cinderSource.ReadOnly,
+					FSType:           cinderSource.FSType,
+					VolumeAttributes: map[string]string{},
+				},
+			},
+			AccessModes: []v1.PersistentVolumeAccessMode{v1.ReadWriteOnce},
+		},
+	}
+	return pv, nil
+}
+
+// TranslateInTreePVToCSI takes a PV with Cinder set from in-tree
+// and converts the Cinder source to a CSIPersistentVolumeSource
+func (t *osCinderCSITranslator) TranslateInTreePVToCSI(logger klog.Logger, pv *v1.PersistentVolume) (*v1.PersistentVolume, error) {
+	if pv == nil || pv.Spec.Cinder == nil {
+		return nil, fmt.Errorf("pv is nil or Cinder not defined on pv")
+	}
+
+	cinderSource := pv.Spec.Cinder
+
+	csiSource := &v1.CSIPersistentVolumeSource{
+		Driver:           CinderDriverName,
+		VolumeHandle:     cinderSource.VolumeID,
+		ReadOnly:         cinderSource.ReadOnly,
+		FSType:           cinderSource.FSType,
+		VolumeAttributes: map[string]string{},
+	}
+
+	if err := translateTopologyFromInTreeToCSI(pv, CinderTopologyKey); err != nil {
+		return nil, fmt.Errorf("failed to translate topology: %v", err)
+	}
+
+	pv.Spec.Cinder = nil
+	pv.Spec.CSI = csiSource
+	return pv, nil
+}
+
+// TranslateCSIPVToInTree takes a PV with CSIPersistentVolumeSource set and
+// translates the Cinder CSI source to a Cinder In-tree source.
+func (t *osCinderCSITranslator) TranslateCSIPVToInTree(pv *v1.PersistentVolume) (*v1.PersistentVolume, error) {
+	if pv == nil || pv.Spec.CSI == nil {
+		return nil, fmt.Errorf("pv is nil or CSI source not defined on pv")
+	}
+
+	csiSource := pv.Spec.CSI
+
+	cinderSource := &v1.CinderPersistentVolumeSource{
+		VolumeID: csiSource.VolumeHandle,
+		FSType:   csiSource.FSType,
+		ReadOnly: csiSource.ReadOnly,
+	}
+
+	// translate CSI topology to In-tree topology for rollback compatibility.
+	// It is not possible to guess Cinder Region from the Zone, therefore leave it empty.
+	if err := translateTopologyFromCSIToInTree(pv, CinderTopologyKey, nil); err != nil {
+		return nil, fmt.Errorf("failed to translate topology. PV:%+v. Error:%v", *pv, err)
+	}
+
+	pv.Spec.CSI = nil
+	pv.Spec.Cinder = cinderSource
+	return pv, nil
+}
+
+// CanSupport tests whether the plugin supports a given persistent volume
+// specification from the API.  The spec pointer should be considered
+// const.
+func (t *osCinderCSITranslator) CanSupport(pv *v1.PersistentVolume) bool {
+	return pv != nil && pv.Spec.Cinder != nil
+}
+
+// CanSupportInline tests whether the plugin supports a given inline volume
+// specification from the API.  The spec pointer should be considered
+// const.
+func (t *osCinderCSITranslator) CanSupportInline(volume *v1.Volume) bool {
+	return volume != nil && volume.Cinder != nil
+}
+
+// GetInTreePluginName returns the name of the intree plugin driver
+func (t *osCinderCSITranslator) GetInTreePluginName() string {
+	return CinderInTreePluginName
+}
+
+// GetCSIPluginName returns the name of the CSI plugin
+func (t *osCinderCSITranslator) GetCSIPluginName() string {
+	return CinderDriverName
+}
+
+func (t *osCinderCSITranslator) RepairVolumeHandle(volumeHandle, nodeID string) (string, error) {
+	return volumeHandle, nil
+}

e2e/vendor/k8s.io/csi-translation-lib/plugins/portworx.go

@@ -0,0 +1,212 @@
+/*
+Copyright 2021 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package plugins
+
+import (
+	"fmt"
+	"strings"
+
+	v1 "k8s.io/api/core/v1"
+	storagev1 "k8s.io/api/storage/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/klog/v2"
+)
+
+const (
+	PortworxVolumePluginName = "kubernetes.io/portworx-volume"
+	PortworxDriverName       = "pxd.portworx.com"
+
+	OpenStorageAuthSecretNameKey      = "openstorage.io/auth-secret-name"
+	OpenStorageAuthSecretNamespaceKey = "openstorage.io/auth-secret-namespace"
+
+	csiParameterPrefix = "csi.storage.k8s.io/"
+
+	prefixedProvisionerSecretNameKey      = csiParameterPrefix + "provisioner-secret-name"
+	prefixedProvisionerSecretNamespaceKey = csiParameterPrefix + "provisioner-secret-namespace"
+
+	prefixedControllerPublishSecretNameKey      = csiParameterPrefix + "controller-publish-secret-name"
+	prefixedControllerPublishSecretNamespaceKey = csiParameterPrefix + "controller-publish-secret-namespace"
+
+	prefixedNodeStageSecretNameKey      = csiParameterPrefix + "node-stage-secret-name"
+	prefixedNodeStageSecretNamespaceKey = csiParameterPrefix + "node-stage-secret-namespace"
+
+	prefixedNodePublishSecretNameKey      = csiParameterPrefix + "node-publish-secret-name"
+	prefixedNodePublishSecretNamespaceKey = csiParameterPrefix + "node-publish-secret-namespace"
+
+	prefixedControllerExpandSecretNameKey      = csiParameterPrefix + "controller-expand-secret-name"
+	prefixedControllerExpandSecretNamespaceKey = csiParameterPrefix + "controller-expand-secret-namespace"
+
+	prefixedNodeExpandSecretNameKey      = csiParameterPrefix + "node-expand-secret-name"
+	prefixedNodeExpandSecretNamespaceKey = csiParameterPrefix + "node-expand-secret-namespace"
+)
+
+var _ InTreePlugin = &portworxCSITranslator{}
+
+type portworxCSITranslator struct{}
+
+func NewPortworxCSITranslator() InTreePlugin {
+	return &portworxCSITranslator{}
+}
+
+// TranslateInTreeStorageClassToCSI takes in-tree storage class used by in-tree plugin
+// and translates them to a storageclass consumable by CSI plugin
+func (p portworxCSITranslator) TranslateInTreeStorageClassToCSI(logger klog.Logger, sc *storagev1.StorageClass) (*storagev1.StorageClass, error) {
+	if sc == nil {
+		return nil, fmt.Errorf("sc is nil")
+	}
+
+	var params = map[string]string{}
+	for k, v := range sc.Parameters {
+		switch strings.ToLower(k) {
+		case OpenStorageAuthSecretNameKey:
+			params[prefixedProvisionerSecretNameKey] = v
+			params[prefixedControllerPublishSecretNameKey] = v
+			params[prefixedNodePublishSecretNameKey] = v
+			params[prefixedNodeStageSecretNameKey] = v
+			params[prefixedControllerExpandSecretNameKey] = v
+			params[prefixedNodeExpandSecretNameKey] = v
+		case OpenStorageAuthSecretNamespaceKey:
+			params[prefixedProvisionerSecretNamespaceKey] = v
+			params[prefixedControllerPublishSecretNamespaceKey] = v
+			params[prefixedNodePublishSecretNamespaceKey] = v
+			params[prefixedNodeStageSecretNamespaceKey] = v
+			params[prefixedControllerExpandSecretNamespaceKey] = v
+			params[prefixedNodeExpandSecretNamespaceKey] = v
+		default:
+			// All other parameters can be copied as is
+			params[k] = v
+		}
+	}
+	if len(params) > 0 {
+		sc.Parameters = params
+	}
+	sc.Provisioner = PortworxDriverName
+
+	return sc, nil
+}
+
+// TranslateInTreeInlineVolumeToCSI takes a inline volume and will translate
+// the in-tree inline volume source to a CSIPersistentVolumeSource
+func (p portworxCSITranslator) TranslateInTreeInlineVolumeToCSI(logger klog.Logger, volume *v1.Volume, podNamespace string) (*v1.PersistentVolume, error) {
+	if volume == nil || volume.PortworxVolume == nil {
+		return nil, fmt.Errorf("volume is nil or PortworxVolume not defined on volume")
+	}
+
+	var am v1.PersistentVolumeAccessMode
+	if volume.PortworxVolume.ReadOnly {
+		am = v1.ReadOnlyMany
+	} else {
+		am = v1.ReadWriteOnce
+	}
+
+	pv := &v1.PersistentVolume{
+		ObjectMeta: metav1.ObjectMeta{
+			Name: fmt.Sprintf("%s-%s", PortworxDriverName, volume.PortworxVolume.VolumeID),
+		},
+		Spec: v1.PersistentVolumeSpec{
+			PersistentVolumeSource: v1.PersistentVolumeSource{
+				CSI: &v1.CSIPersistentVolumeSource{
+					Driver:           PortworxDriverName,
+					VolumeHandle:     volume.PortworxVolume.VolumeID,
+					FSType:           volume.PortworxVolume.FSType,
+					VolumeAttributes: make(map[string]string),
+				},
+			},
+			AccessModes: []v1.PersistentVolumeAccessMode{am},
+		},
+	}
+	return pv, nil
+}
+
+// TranslateInTreePVToCSI takes a Portworx persistent volume and will translate
+// the in-tree pv source to a CSI Source
+func (p portworxCSITranslator) TranslateInTreePVToCSI(logger klog.Logger, pv *v1.PersistentVolume) (*v1.PersistentVolume, error) {
+	if pv == nil || pv.Spec.PortworxVolume == nil {
+		return nil, fmt.Errorf("pv is nil or PortworxVolume not defined on pv")
+	}
+	var secretRef *v1.SecretReference
+
+	if metav1.HasAnnotation(pv.ObjectMeta, OpenStorageAuthSecretNameKey) &&
+		metav1.HasAnnotation(pv.ObjectMeta, OpenStorageAuthSecretNamespaceKey) {
+		secretRef = &v1.SecretReference{
+			Name:      pv.Annotations[OpenStorageAuthSecretNameKey],
+			Namespace: pv.Annotations[OpenStorageAuthSecretNamespaceKey],
+		}
+	}
+
+	csiSource := &v1.CSIPersistentVolumeSource{
+		Driver:                     PortworxDriverName,
+		VolumeHandle:               pv.Spec.PortworxVolume.VolumeID,
+		FSType:                     pv.Spec.PortworxVolume.FSType,
+		VolumeAttributes:           make(map[string]string), // copy access mode
+		ControllerPublishSecretRef: secretRef,
+		NodeStageSecretRef:         secretRef,
+		NodePublishSecretRef:       secretRef,
+		ControllerExpandSecretRef:  secretRef,
+		NodeExpandSecretRef:        secretRef,
+	}
+	pv.Spec.PortworxVolume = nil
+	pv.Spec.CSI = csiSource
+
+	return pv, nil
+}
+
+// TranslateCSIPVToInTree takes a PV with a CSI PersistentVolume Source and will translate
+// it to a in-tree Persistent Volume Source for the in-tree volume
+func (p portworxCSITranslator) TranslateCSIPVToInTree(pv *v1.PersistentVolume) (*v1.PersistentVolume, error) {
+	if pv == nil || pv.Spec.CSI == nil {
+		return nil, fmt.Errorf("pv is nil or CSI source not defined on pv")
+	}
+	csiSource := pv.Spec.CSI
+
+	portworxSource := &v1.PortworxVolumeSource{
+		VolumeID: csiSource.VolumeHandle,
+		FSType:   csiSource.FSType,
+		ReadOnly: csiSource.ReadOnly,
+	}
+	pv.Spec.CSI = nil
+	pv.Spec.PortworxVolume = portworxSource
+
+	return pv, nil
+}
+
+// CanSupport tests whether the plugin supports a given persistent volume
+// specification from the API.
+func (p portworxCSITranslator) CanSupport(pv *v1.PersistentVolume) bool {
+	return pv != nil && pv.Spec.PortworxVolume != nil
+}
+
+// CanSupportInline tests whether the plugin supports a given inline volume
+// specification from the API.
+func (p portworxCSITranslator) CanSupportInline(volume *v1.Volume) bool {
+	return volume != nil && volume.PortworxVolume != nil
+}
+
+// GetInTreePluginName returns the in-tree plugin name this migrates
+func (p portworxCSITranslator) GetInTreePluginName() string {
+	return PortworxVolumePluginName
+}
+
+// GetCSIPluginName returns the name of the CSI plugin that supersedes the in-tree plugin
+func (p portworxCSITranslator) GetCSIPluginName() string {
+	return PortworxDriverName
+}
+
+// RepairVolumeHandle generates a correct volume handle based on node ID information.
+func (p portworxCSITranslator) RepairVolumeHandle(volumeHandle, nodeID string) (string, error) {
+	return volumeHandle, nil
+}

e2e/vendor/k8s.io/csi-translation-lib/plugins/vsphere_volume.go

@@ -0,0 +1,302 @@
+/*
+Copyright 2020 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package plugins
+
+import (
+	"fmt"
+	"strings"
+
+	v1 "k8s.io/api/core/v1"
+	storage "k8s.io/api/storage/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/klog/v2"
+)
+
+const (
+	// VSphereDriverName is the name of the CSI driver for vSphere Volume
+	VSphereDriverName = "csi.vsphere.vmware.com"
+	// VSphereInTreePluginName is the name of the in-tree plugin for vSphere Volume
+	VSphereInTreePluginName = "kubernetes.io/vsphere-volume"
+
+	// vSphereCSITopologyZoneKey is the zonal topology key for vSphere CSI Driver
+	vSphereCSITopologyZoneKey = "topology.csi.vmware.com/zone"
+
+	// vSphereCSITopologyRegionKey is the region topology key for vSphere CSI Driver
+	vSphereCSITopologyRegionKey = "topology.csi.vmware.com/region"
+
+	// paramStoragePolicyName used to supply SPBM Policy name for Volume provisioning
+	paramStoragePolicyName = "storagepolicyname"
+
+	// This param is used to tell Driver to return volumePath and not VolumeID
+	// in-tree vSphere plugin does not understand volume id, it uses volumePath
+	paramcsiMigration = "csimigration"
+
+	// This param is used to supply datastore name for Volume provisioning
+	paramDatastore = "datastore-migrationparam"
+
+	// This param supplies disk foramt (thin, thick, zeoredthick) for Volume provisioning
+	paramDiskFormat = "diskformat-migrationparam"
+
+	// vSAN Policy Parameters
+	paramHostFailuresToTolerate = "hostfailurestotolerate-migrationparam"
+	paramForceProvisioning      = "forceprovisioning-migrationparam"
+	paramCacheReservation       = "cachereservation-migrationparam"
+	paramDiskstripes            = "diskstripes-migrationparam"
+	paramObjectspacereservation = "objectspacereservation-migrationparam"
+	paramIopslimit              = "iopslimit-migrationparam"
+
+	// AttributeInitialVolumeFilepath represents the path of volume where volume is created
+	AttributeInitialVolumeFilepath = "initialvolumefilepath"
+)
+
+var _ InTreePlugin = &vSphereCSITranslator{}
+
+// vSphereCSITranslator handles translation of PV spec from In-tree vSphere Volume to vSphere CSI
+type vSphereCSITranslator struct{}
+
+// NewvSphereCSITranslator returns a new instance of vSphereCSITranslator
+func NewvSphereCSITranslator() InTreePlugin {
+	return &vSphereCSITranslator{}
+}
+
+// TranslateInTreeStorageClassToCSI translates InTree vSphere storage class parameters to CSI storage class
+func (t *vSphereCSITranslator) TranslateInTreeStorageClassToCSI(logger klog.Logger, sc *storage.StorageClass) (*storage.StorageClass, error) {
+	if sc == nil {
+		return nil, fmt.Errorf("sc is nil")
+	}
+	var params = map[string]string{}
+	for k, v := range sc.Parameters {
+		switch strings.ToLower(k) {
+		case fsTypeKey:
+			params[csiFsTypeKey] = v
+		case paramStoragePolicyName:
+			params[paramStoragePolicyName] = v
+		case "datastore":
+			params[paramDatastore] = v
+		case "diskformat":
+			params[paramDiskFormat] = v
+		case "hostfailurestotolerate":
+			params[paramHostFailuresToTolerate] = v
+		case "forceprovisioning":
+			params[paramForceProvisioning] = v
+		case "cachereservation":
+			params[paramCacheReservation] = v
+		case "diskstripes":
+			params[paramDiskstripes] = v
+		case "objectspacereservation":
+			params[paramObjectspacereservation] = v
+		case "iopslimit":
+			params[paramIopslimit] = v
+		default:
+			logger.V(2).Info("StorageClass parameter is not supported", "name", k, "value", v)
+		}
+	}
+
+	// This helps vSphere CSI driver to identify in-tree provisioner request vs CSI provisioner request
+	// When this is true, Driver returns initialvolumefilepath in the VolumeContext, which is
+	// used in TranslateCSIPVToInTree
+	params[paramcsiMigration] = "true"
+	// translate AllowedTopologies to vSphere CSI Driver topology
+	if len(sc.AllowedTopologies) > 0 {
+		newTopologies, err := translateAllowedTopologies(sc.AllowedTopologies, vSphereCSITopologyZoneKey)
+		if err != nil {
+			return nil, fmt.Errorf("failed translating allowed topologies: %v", err)
+		}
+		sc.AllowedTopologies = newTopologies
+	}
+	sc.Parameters = params
+	return sc, nil
+}
+
+// TranslateInTreeInlineVolumeToCSI takes a Volume with VsphereVolume set from in-tree
+// and converts the VsphereVolume source to a CSIPersistentVolumeSource
+func (t *vSphereCSITranslator) TranslateInTreeInlineVolumeToCSI(logger klog.Logger, volume *v1.Volume, podNamespace string) (*v1.PersistentVolume, error) {
+	if volume == nil || volume.VsphereVolume == nil {
+		return nil, fmt.Errorf("volume is nil or VsphereVolume not defined on volume")
+	}
+	pv := &v1.PersistentVolume{
+		ObjectMeta: metav1.ObjectMeta{
+			// Must be unique per disk as it is used as the unique part of the
+			// staging path
+			Name: fmt.Sprintf("%s-%s", VSphereDriverName, volume.VsphereVolume.VolumePath),
+		},
+		Spec: v1.PersistentVolumeSpec{
+			PersistentVolumeSource: v1.PersistentVolumeSource{
+				CSI: &v1.CSIPersistentVolumeSource{
+					Driver:           VSphereDriverName,
+					VolumeHandle:     volume.VsphereVolume.VolumePath,
+					FSType:           volume.VsphereVolume.FSType,
+					VolumeAttributes: make(map[string]string),
+				},
+			},
+			AccessModes: []v1.PersistentVolumeAccessMode{v1.ReadWriteOnce},
+		},
+	}
+	if volume.VsphereVolume.StoragePolicyName != "" {
+		pv.Spec.CSI.VolumeAttributes[paramStoragePolicyName] = pv.Spec.VsphereVolume.StoragePolicyName
+	}
+	return pv, nil
+}
+
+// TranslateInTreePVToCSI takes a PV with VsphereVolume set from in-tree
+// and converts the VsphereVolume source to a CSIPersistentVolumeSource
+func (t *vSphereCSITranslator) TranslateInTreePVToCSI(logger klog.Logger, pv *v1.PersistentVolume) (*v1.PersistentVolume, error) {
+	if pv == nil || pv.Spec.VsphereVolume == nil {
+		return nil, fmt.Errorf("pv is nil or VsphereVolume not defined on pv")
+	}
+	csiSource := &v1.CSIPersistentVolumeSource{
+		Driver:           VSphereDriverName,
+		VolumeHandle:     pv.Spec.VsphereVolume.VolumePath,
+		FSType:           pv.Spec.VsphereVolume.FSType,
+		VolumeAttributes: make(map[string]string),
+	}
+	if pv.Spec.VsphereVolume.StoragePolicyName != "" {
+		csiSource.VolumeAttributes[paramStoragePolicyName] = pv.Spec.VsphereVolume.StoragePolicyName
+	}
+	// translate in-tree topology to CSI topology for migration
+	if err := translateTopologyFromInTreevSphereToCSI(pv, vSphereCSITopologyZoneKey, vSphereCSITopologyRegionKey); err != nil {
+		return nil, fmt.Errorf("failed to translate topology: %v", err)
+	}
+	pv.Spec.VsphereVolume = nil
+	pv.Spec.CSI = csiSource
+	return pv, nil
+}
+
+// TranslateCSIPVToInTree takes a PV with CSIPersistentVolumeSource set and
+// translates the vSphere CSI source to a vSphereVolume source.
+func (t *vSphereCSITranslator) TranslateCSIPVToInTree(pv *v1.PersistentVolume) (*v1.PersistentVolume, error) {
+	if pv == nil || pv.Spec.CSI == nil {
+		return nil, fmt.Errorf("pv is nil or CSI source not defined on pv")
+	}
+	csiSource := pv.Spec.CSI
+	vsphereVirtualDiskVolumeSource := &v1.VsphereVirtualDiskVolumeSource{
+		FSType: csiSource.FSType,
+	}
+	volumeFilePath, ok := csiSource.VolumeAttributes[AttributeInitialVolumeFilepath]
+	if ok {
+		vsphereVirtualDiskVolumeSource.VolumePath = volumeFilePath
+	}
+	// translate CSI topology to In-tree topology for rollback compatibility.
+	if err := translateTopologyFromCSIToInTreevSphere(pv, vSphereCSITopologyZoneKey, vSphereCSITopologyRegionKey); err != nil {
+		return nil, fmt.Errorf("failed to translate topology. PV:%+v. Error:%v", *pv, err)
+	}
+	pv.Spec.CSI = nil
+	pv.Spec.VsphereVolume = vsphereVirtualDiskVolumeSource
+	return pv, nil
+}
+
+// CanSupport tests whether the plugin supports a given persistent volume
+// specification from the API.
+func (t *vSphereCSITranslator) CanSupport(pv *v1.PersistentVolume) bool {
+	return pv != nil && pv.Spec.VsphereVolume != nil
+}
+
+// CanSupportInline tests whether the plugin supports a given inline volume
+// specification from the API.
+func (t *vSphereCSITranslator) CanSupportInline(volume *v1.Volume) bool {
+	return volume != nil && volume.VsphereVolume != nil
+}
+
+// GetInTreePluginName returns the name of the in-tree plugin driver
+func (t *vSphereCSITranslator) GetInTreePluginName() string {
+	return VSphereInTreePluginName
+}
+
+// GetCSIPluginName returns the name of the CSI plugin
+func (t *vSphereCSITranslator) GetCSIPluginName() string {
+	return VSphereDriverName
+}
+
+// RepairVolumeHandle is needed in VerifyVolumesAttached on the external attacher when we need to do strict volume
+// handle matching to check VolumeAttachment attached status.
+// vSphere volume does not need patch to help verify whether that volume is attached.
+func (t *vSphereCSITranslator) RepairVolumeHandle(volumeHandle, nodeID string) (string, error) {
+	return volumeHandle, nil
+}
+
+// translateTopologyFromInTreevSphereToCSI converts existing zone labels or in-tree vsphere topology to
+// vSphere CSI topology.
+func translateTopologyFromInTreevSphereToCSI(pv *v1.PersistentVolume, csiTopologyKeyZone string, csiTopologyKeyRegion string) error {
+	zoneLabel, regionLabel := getTopologyLabel(pv)
+
+	// If Zone kubernetes topology exist, replace it to use csiTopologyKeyZone
+	zones := getTopologyValues(pv, zoneLabel)
+	if len(zones) > 0 {
+		replaceTopology(pv, zoneLabel, csiTopologyKeyZone)
+	} else {
+		// if nothing is in the NodeAffinity, try to fetch the topology from PV labels
+		if label, ok := pv.Labels[zoneLabel]; ok {
+			if len(label) > 0 {
+				addTopology(pv, csiTopologyKeyZone, []string{label})
+			}
+		}
+	}
+
+	// If region kubernetes topology exist, replace it to use csiTopologyKeyRegion
+	regions := getTopologyValues(pv, regionLabel)
+	if len(regions) > 0 {
+		replaceTopology(pv, regionLabel, csiTopologyKeyRegion)
+	} else {
+		// if nothing is in the NodeAffinity, try to fetch the topology from PV labels
+		if label, ok := pv.Labels[regionLabel]; ok {
+			if len(label) > 0 {
+				addTopology(pv, csiTopologyKeyRegion, []string{label})
+			}
+		}
+	}
+	return nil
+}
+
+// translateTopologyFromCSIToInTreevSphere converts CSI zone/region affinity rules to in-tree vSphere zone/region labels
+func translateTopologyFromCSIToInTreevSphere(pv *v1.PersistentVolume,
+	csiTopologyKeyZone string, csiTopologyKeyRegion string) error {
+	zoneLabel, regionLabel := getTopologyLabel(pv)
+
+	// Replace all CSI topology to Kubernetes Zone label
+	err := replaceTopology(pv, csiTopologyKeyZone, zoneLabel)
+	if err != nil {
+		return fmt.Errorf("failed to replace CSI topology to Kubernetes topology, error: %v", err)
+	}
+
+	// Replace all CSI topology to Kubernetes Region label
+	err = replaceTopology(pv, csiTopologyKeyRegion, regionLabel)
+	if err != nil {
+		return fmt.Errorf("failed to replace CSI topology to Kubernetes topology, error: %v", err)
+	}
+
+	zoneVals := getTopologyValues(pv, zoneLabel)
+	if len(zoneVals) > 0 {
+		if pv.Labels == nil {
+			pv.Labels = make(map[string]string)
+		}
+		_, zoneOK := pv.Labels[zoneLabel]
+		if !zoneOK {
+			pv.Labels[zoneLabel] = zoneVals[0]
+		}
+	}
+	regionVals := getTopologyValues(pv, regionLabel)
+	if len(regionVals) > 0 {
+		if pv.Labels == nil {
+			pv.Labels = make(map[string]string)
+		}
+		_, regionOK := pv.Labels[regionLabel]
+		if !regionOK {
+			pv.Labels[regionLabel] = regionVals[0]
+		}
+	}
+	return nil
+}

e2e/vendor/k8s.io/csi-translation-lib/translate.go

@@ -0,0 +1,212 @@
+/*
+Copyright 2019 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package csitranslation
+
+import (
+	"errors"
+	"fmt"
+
+	v1 "k8s.io/api/core/v1"
+	storage "k8s.io/api/storage/v1"
+	"k8s.io/csi-translation-lib/plugins"
+	"k8s.io/klog/v2"
+)
+
+var (
+	inTreePlugins = map[string]plugins.InTreePlugin{
+		plugins.GCEPDDriverName:     plugins.NewGCEPersistentDiskCSITranslator(),
+		plugins.AWSEBSDriverName:    plugins.NewAWSElasticBlockStoreCSITranslator(),
+		plugins.CinderDriverName:    plugins.NewOpenStackCinderCSITranslator(),
+		plugins.AzureDiskDriverName: plugins.NewAzureDiskCSITranslator(),
+		plugins.AzureFileDriverName: plugins.NewAzureFileCSITranslator(),
+		plugins.VSphereDriverName:   plugins.NewvSphereCSITranslator(),
+		plugins.PortworxDriverName:  plugins.NewPortworxCSITranslator(),
+	}
+)
+
+// CSITranslator translates in-tree storage API objects to their equivalent CSI
+// API objects. It also provides many helper functions to determine whether
+// translation logic exists and the mappings between "in-tree plugin <-> csi driver"
+type CSITranslator struct{}
+
+// New creates a new CSITranslator which does real translation
+// for "in-tree plugins <-> csi drivers"
+func New() CSITranslator {
+	return CSITranslator{}
+}
+
+// TranslateInTreeStorageClassToCSI takes in-tree Storage Class
+// and translates it to a set of parameters consumable by CSI plugin
+func (CSITranslator) TranslateInTreeStorageClassToCSI(logger klog.Logger, inTreePluginName string, sc *storage.StorageClass) (*storage.StorageClass, error) {
+	newSC := sc.DeepCopy()
+	for _, curPlugin := range inTreePlugins {
+		if inTreePluginName == curPlugin.GetInTreePluginName() {
+			return curPlugin.TranslateInTreeStorageClassToCSI(logger, newSC)
+		}
+	}
+	return nil, fmt.Errorf("could not find in-tree storage class parameter translation logic for %#v", inTreePluginName)
+}
+
+// TranslateInTreeInlineVolumeToCSI takes a inline volume and will translate
+// the in-tree volume source to a CSIPersistentVolumeSource (wrapped in a PV)
+// if the translation logic has been implemented.
+func (CSITranslator) TranslateInTreeInlineVolumeToCSI(logger klog.Logger, volume *v1.Volume, podNamespace string) (*v1.PersistentVolume, error) {
+	if volume == nil {
+		return nil, fmt.Errorf("persistent volume was nil")
+	}
+	for _, curPlugin := range inTreePlugins {
+		if curPlugin.CanSupportInline(volume) {
+			pv, err := curPlugin.TranslateInTreeInlineVolumeToCSI(logger, volume, podNamespace)
+			if err != nil {
+				return nil, err
+			}
+			// Inline volumes only support PersistentVolumeFilesystem (and not block).
+			// If VolumeMode has not been set explicitly by plugin-specific
+			// translator, set it to Filesystem here.
+			// This is only necessary for inline volumes as the default PV
+			// initialization that populates VolumeMode does not apply to inline volumes.
+			if pv.Spec.VolumeMode == nil {
+				volumeMode := v1.PersistentVolumeFilesystem
+				pv.Spec.VolumeMode = &volumeMode
+			}
+			return pv, nil
+		}
+	}
+	return nil, fmt.Errorf("could not find in-tree plugin translation logic for %#v", volume.Name)
+}
+
+// TranslateInTreePVToCSI takes a persistent volume and will translate
+// the in-tree source to a CSI Source if the translation logic
+// has been implemented. The input persistent volume will not
+// be modified
+func (CSITranslator) TranslateInTreePVToCSI(logger klog.Logger, pv *v1.PersistentVolume) (*v1.PersistentVolume, error) {
+	if pv == nil {
+		return nil, errors.New("persistent volume was nil")
+	}
+	copiedPV := pv.DeepCopy()
+	for _, curPlugin := range inTreePlugins {
+		if curPlugin.CanSupport(copiedPV) {
+			return curPlugin.TranslateInTreePVToCSI(logger, copiedPV)
+		}
+	}
+	return nil, fmt.Errorf("could not find in-tree plugin translation logic for %#v", copiedPV.Name)
+}
+
+// TranslateCSIPVToInTree takes a PV with a CSI PersistentVolume Source and will translate
+// it to a in-tree Persistent Volume Source for the specific in-tree volume specified
+// by the `Driver` field in the CSI Source. The input PV object will not be modified.
+func (CSITranslator) TranslateCSIPVToInTree(pv *v1.PersistentVolume) (*v1.PersistentVolume, error) {
+	if pv == nil || pv.Spec.CSI == nil {
+		return nil, errors.New("CSI persistent volume was nil")
+	}
+	copiedPV := pv.DeepCopy()
+	for driverName, curPlugin := range inTreePlugins {
+		if copiedPV.Spec.CSI.Driver == driverName {
+			return curPlugin.TranslateCSIPVToInTree(copiedPV)
+		}
+	}
+	return nil, fmt.Errorf("could not find in-tree plugin translation logic for %s", copiedPV.Spec.CSI.Driver)
+}
+
+// IsMigratableIntreePluginByName tests whether there is migration logic for the in-tree plugin
+// whose name matches the given name
+func (CSITranslator) IsMigratableIntreePluginByName(inTreePluginName string) bool {
+	for _, curPlugin := range inTreePlugins {
+		if curPlugin.GetInTreePluginName() == inTreePluginName {
+			return true
+		}
+	}
+	return false
+}
+
+// IsMigratedCSIDriverByName tests whether there exists an in-tree plugin with logic
+// to migrate to the CSI driver with given name
+func (CSITranslator) IsMigratedCSIDriverByName(csiPluginName string) bool {
+	if _, ok := inTreePlugins[csiPluginName]; ok {
+		return true
+	}
+	return false
+}
+
+// GetInTreePluginNameFromSpec returns the plugin name
+func (CSITranslator) GetInTreePluginNameFromSpec(pv *v1.PersistentVolume, vol *v1.Volume) (string, error) {
+	if pv != nil {
+		for _, curPlugin := range inTreePlugins {
+			if curPlugin.CanSupport(pv) {
+				return curPlugin.GetInTreePluginName(), nil
+			}
+		}
+		return "", fmt.Errorf("could not find in-tree plugin name from persistent volume %s", pv.Name)
+	} else if vol != nil {
+		for _, curPlugin := range inTreePlugins {
+			if curPlugin.CanSupportInline(vol) {
+				return curPlugin.GetInTreePluginName(), nil
+			}
+		}
+		return "", fmt.Errorf("could not find in-tree plugin name from volume %s", vol.Name)
+	} else {
+		return "", errors.New("both persistent volume and volume are nil")
+	}
+}
+
+// GetCSINameFromInTreeName returns the name of a CSI driver that supersedes the
+// in-tree plugin with the given name
+func (CSITranslator) GetCSINameFromInTreeName(pluginName string) (string, error) {
+	for csiDriverName, curPlugin := range inTreePlugins {
+		if curPlugin.GetInTreePluginName() == pluginName {
+			return csiDriverName, nil
+		}
+	}
+	return "", fmt.Errorf("could not find CSI Driver name for plugin %s", pluginName)
+}
+
+// GetInTreeNameFromCSIName returns the name of the in-tree plugin superseded by
+// a CSI driver with the given name
+func (CSITranslator) GetInTreeNameFromCSIName(pluginName string) (string, error) {
+	if plugin, ok := inTreePlugins[pluginName]; ok {
+		return plugin.GetInTreePluginName(), nil
+	}
+	return "", fmt.Errorf("could not find In-Tree driver name for CSI plugin %s", pluginName)
+}
+
+// IsPVMigratable tests whether there is migration logic for the given Persistent Volume
+func (CSITranslator) IsPVMigratable(pv *v1.PersistentVolume) bool {
+	for _, curPlugin := range inTreePlugins {
+		if curPlugin.CanSupport(pv) {
+			return true
+		}
+	}
+	return false
+}
+
+// IsInlineMigratable tests whether there is Migration logic for the given Inline Volume
+func (CSITranslator) IsInlineMigratable(vol *v1.Volume) bool {
+	for _, curPlugin := range inTreePlugins {
+		if curPlugin.CanSupportInline(vol) {
+			return true
+		}
+	}
+	return false
+}
+
+// RepairVolumeHandle generates a correct volume handle based on node ID information.
+func (CSITranslator) RepairVolumeHandle(driverName, volumeHandle, nodeID string) (string, error) {
+	if plugin, ok := inTreePlugins[driverName]; ok {
+		return plugin.RepairVolumeHandle(volumeHandle, nodeID)
+	}
+	return "", fmt.Errorf("could not find In-Tree driver name for CSI plugin %s", driverName)
+}