Change:
<ins> /* Copyright 2018 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 vsphere_volume import ( "fmt" "path" "path/filepath" "strings" "github.com/golang/glog" "k8s.io/api/core/v1" "k8s.io/apimachinery/pkg/types" "k8s.io/kubernetes/pkg/util/mount" kstrings "k8s.io/kubernetes/pkg/util/strings" "k8s.io/kubernetes/pkg/volume" "k8s.io/kubernetes/pkg/volume/util" "k8s.io/kubernetes/pkg/volume/util/volumepathhandler" ) var _ volume.BlockVolumePlugin = &vsphereVolumePlugin{} func (plugin *vsphereVolumePlugin) ConstructBlockVolumeSpec(podUID types.UID, volumeName, mapPath string) (*volume.Spec, error) { pluginDir := plugin.host.GetPluginDir(plugin.GetPluginName()) blkUtil := volumepathhandler.NewBlockVolumePathHandler() globalMapPathUUID, err := blkUtil.FindGlobalMapPathUUIDFromPod(pluginDir, mapPath, podUID) if err != nil { glog.Errorf("Failed to find GlobalMapPathUUID from Pod: %s with error: %+v", podUID, err) return nil, err } glog.V(5).Infof("globalMapPathUUID: %v", globalMapPathUUID) globalMapPath := filepath.Dir(globalMapPathUUID) if len(globalMapPath) <= 1 { return nil, fmt.Errorf("failed to get volume plugin information from globalMapPathUUID: %v", globalMapPathUUID) } return getVolumeSpecFromGlobalMapPath(globalMapPath) } func getVolumeSpecFromGlobalMapPath(globalMapPath string) (*volume.Spec, error) { // Construct volume spec from globalMapPath // globalMapPath example: //   plugins/kubernetes.io/{PluginName}/{DefaultKubeletVolumeDevicesDirName}/{volumeID} //   plugins/kubernetes.io/vsphere-volume/volumeDevices/[datastore1]040volumes/myDisk volPath := filepath.Base(globalMapPath) volPath = strings.Replace(volPath, "040", "", -1) if len(volPath) <= 1 { return nil, fmt.Errorf("failed to get volume path from global path=%s", globalMapPath) } block := v1.PersistentVolumeBlock vsphereVolume := &v1.PersistentVolume{ Spec: v1.PersistentVolumeSpec{ PersistentVolumeSource: v1.PersistentVolumeSource{ VsphereVolume: &v1.VsphereVirtualDiskVolumeSource{ VolumePath: volPath, }, }, VolumeMode: &block, }, } return volume.NewSpecFromPersistentVolume(vsphereVolume, true), nil } func (plugin *vsphereVolumePlugin) NewBlockVolumeMapper(spec *volume.Spec, pod *v1.Pod, _ volume.VolumeOptions) (volume.BlockVolumeMapper, error) { // If this called via GenerateUnmapDeviceFunc(), pod is nil. // Pass empty string as dummy uid since uid isn't used in the case. var uid types.UID if pod != nil { uid = pod.UID } return plugin.newBlockVolumeMapperInternal(spec, uid, &VsphereDiskUtil{}, plugin.host.GetMounter(plugin.GetPluginName())) } func (plugin *vsphereVolumePlugin) newBlockVolumeMapperInternal(spec *volume.Spec, podUID types.UID, manager vdManager, mounter mount.Interface) (volume.BlockVolumeMapper, error) { volumeSource, _, err := getVolumeSource(spec) if err != nil { glog.Errorf("Failed to get Volume source from volume Spec: %+v with error: %+v", *spec, err) return nil, err } volPath := volumeSource.VolumePath return &vsphereBlockVolumeMapper{ vsphereVolume: &vsphereVolume{ volName:         spec.Name(), podUID:          podUID, volPath:         volPath, manager:         manager, mounter:         mounter, plugin:          plugin, MetricsProvider: volume.NewMetricsStatFS(getPath(podUID, spec.Name(), plugin.host)), }, }, nil } func (plugin *vsphereVolumePlugin) NewBlockVolumeUnmapper(volName string, podUID types.UID) (volume.BlockVolumeUnmapper, error) { return plugin.newUnmapperInternal(volName, podUID, &VsphereDiskUtil{}) } func (plugin *vsphereVolumePlugin) newUnmapperInternal(volName string, podUID types.UID, manager vdManager) (volume.BlockVolumeUnmapper, error) { return &vsphereBlockVolumeUnmapper{ vsphereVolume: &vsphereVolume{ volName: volName, podUID:  podUID, volPath: volName, manager: manager, plugin:  plugin, }, }, nil } var _ volume.BlockVolumeMapper = &vsphereBlockVolumeMapper{} type vsphereBlockVolumeMapper struct { *vsphereVolume } func (v vsphereBlockVolumeMapper) SetUpDevice() (string, error) { return "", nil } func (v vsphereBlockVolumeMapper) MapDevice(devicePath, globalMapPath, volumeMapPath, volumeMapName string, podUID types.UID) error { return util.MapBlockVolume(devicePath, globalMapPath, volumeMapPath, volumeMapName, podUID) } var _ volume.BlockVolumeUnmapper = &vsphereBlockVolumeUnmapper{} type vsphereBlockVolumeUnmapper struct { *vsphereVolume } func (v *vsphereBlockVolumeUnmapper) TearDownDevice(mapPath, devicePath string) error { return nil } // GetGlobalMapPath returns global map path and error // path: plugins/kubernetes.io/{PluginName}/volumeDevices/volumePath func (v *vsphereVolume) GetGlobalMapPath(spec *volume.Spec) (string, error) { volumeSource, _, err := getVolumeSource(spec) if err != nil { return "", err } return path.Join(v.plugin.host.GetVolumeDevicePluginDir(vsphereVolumePluginName), string(volumeSource.VolumePath)), nil } func (v *vsphereVolume) GetPodDeviceMapPath() (string, string) { return v.plugin.host.GetPodVolumeDeviceDir(v.podUID, kstrings.EscapeQualifiedNameForDisk(vsphereVolumePluginName)), v.volName } </ins>

Discussion:
FEATURE REQUEST: vSphere volume plugin does not support volume device yet. Need to add volumeMode in PV spec as other plugin did. release 1.12
/sig storage