Adding volume metrics support for vSphere Cloud Provider

pkg/volume/vsphere_volume/vsphere_volume.go

@@ -52,6 +52,10 @@ const (
 	vsphereVolumePluginName = "kubernetes.io/vsphere-volume"
 )
 
+func getPath(uid types.UID, volName string, host volume.VolumeHost) string {
+	return host.GetPodVolumeDir(uid, utilstrings.EscapeQualifiedNameForDisk(vsphereVolumePluginName), volName)
+}
+
 // vSphere Volume Plugin
 func (plugin *vsphereVolumePlugin) Init(host volume.VolumeHost) error {
 	plugin.host = host
@@ -113,6 +117,7 @@ func (plugin *vsphereVolumePlugin) newMounterInternal(spec *volume.Spec, podUID
 			manager:         manager,
 			mounter:         mounter,
 			plugin:          plugin,
+			MetricsProvider: volume.NewMetricsStatFS(getPath(podUID, spec.Name(), plugin.host)),
 		},
 		fsType:      fsType,
 		diskMounter: volumehelper.NewSafeFormatAndMountFromHost(plugin.GetPluginName(), plugin.host)}, nil
@@ -126,6 +131,7 @@ func (plugin *vsphereVolumePlugin) newUnmounterInternal(volName string, podUID t
 			manager:         manager,
 			mounter:         mounter,
 			plugin:          plugin,
+			MetricsProvider: volume.NewMetricsStatFS(getPath(podUID, volName, plugin.host)),
 		}}, nil
 }
 
@@ -174,7 +180,7 @@ type vsphereVolume struct {
 	// diskMounter provides the interface that is used to mount the actual block device.
 	diskMounter mount.Interface
 	plugin      *vsphereVolumePlugin
-	volume.MetricsNil
+	volume.MetricsProvider
 }
 
 var _ volume.Mounter = &vsphereVolumeMounter{}