// allowVolumeExpansion shows whether the storage class allow volume expand
  // +optional
  optional bool allowVolumeExpansion = 6;

  // volumeBindingMode indicates how PersistentVolumeClaims should be
  // provisioned and bound.  When unset, VolumeBindingImmediate is used.
  // This field is only honored by servers that enable the VolumeScheduling feature.
  // +optional

	if err != nil {
		logger.V(4).Info("Error getting namespace & name of pvc to get pvc from informer", "pvcKey", key, "err", err)
		return nil
	}
	pvc, err := adc.pvcLister.PersistentVolumeClaims(namespace).Get(name)
	if apierrors.IsNotFound(err) {
		logger.V(4).Info("Error getting pvc from informer", "pvcKey", key, "err", err)
		return nil
	}
	if err != nil {
		return err
	}

// implements the documented semantics for StatefulSets. podControl is the PodControlInterface used to create, update,
// and delete Pods and to create PersistentVolumeClaims. statusUpdater is the StatefulSetStatusUpdaterInterface used
// to update the status of StatefulSets. You should use an instance returned from NewRealStatefulPodControl() for any
// scenario other than testing.

		VolumePlugins:             []volume.VolumePlugin{},
		VolumeInformer:            informerFactory.Core().V1().PersistentVolumes(),
		ClaimInformer:             informerFactory.Core().V1().PersistentVolumeClaims(),
		ClassInformer:             informerFactory.Storage().V1().StorageClasses(),
		PodInformer:               informerFactory.Core().V1().Pods(),
		NodeInformer:              informerFactory.Core().V1().Nodes(),

		fakeVolumeWatch := watch.NewFake()
		client.PrependWatchReactor("persistentvolumes", core.DefaultWatchReactor(fakeVolumeWatch, nil))
		fakeClaimWatch := watch.NewFake()
		client.PrependWatchReactor("persistentvolumeclaims", core.DefaultWatchReactor(fakeClaimWatch, nil))
		client.PrependWatchReactor("storageclasses", core.DefaultWatchReactor(watch.NewFake(), nil))

	for i, claim = range claimsToProvision {
		logger.V(5).Info("Updating claims objects to trigger volume provisioning", "pod", klog.KObj(pod), "PVC", klog.KObj(claim))
		newClaim, err := b.kubeClient.CoreV1().PersistentVolumeClaims(claim.Namespace).Update(ctx, claim, metav1.UpdateOptions{})
		if err != nil {
			logger.V(4).Info("Updating PersistentVolumeClaim: binding to volume failed", "PVC", klog.KObj(claim), "err", err)
			return err
		}