pkgcorev1 "k8s.io/kubernetes/pkg/apis/core/v1"
	pkgstoragev1 "k8s.io/kubernetes/pkg/apis/storage/v1"
	"k8s.io/kubernetes/pkg/features"
	"k8s.io/kubernetes/pkg/volume"
	fakecsi "k8s.io/kubernetes/pkg/volume/csi/fake"
	"k8s.io/kubernetes/pkg/volume/util"
	volumetypes "k8s.io/kubernetes/pkg/volume/util/types"
)

var (
	testDriver  = "test-driver"
	testVol     = "vol-123"
	testns      = "test-ns"
	testPod     = "test-pod"

			if podMeta != nil && podMeta.Name != "" && volName != "" {
				pvcName := podMeta.Name + "-" + volName
				for _, msg := range ValidatePersistentVolumeName(pvcName, false) {
					allErrs = append(allErrs, field.Invalid(fldPath.Child("name"), volName, fmt.Sprintf("PVC name %q: %v", pvcName, msg)))
				}
			}
		}
	}

	if numVolumes == 0 {

			klog.ErrorS(nil, "Block volume cannot be satisfied for container, because the volume is missing or the volume mapper is nil", "containerName", container.Name, "device", device)
			return nil, fmt.Errorf("cannot find volume %q to pass into container %q", device.Name, container.Name)
		}
		// Get a symbolic link associated to a block device under pod device path
		dirPath, volName := vol.BlockVolumeMapper.GetPodDeviceMapPath()

limitations under the License.
*/

package volume

import (
	"time"

	v1 "k8s.io/api/core/v1"
	"k8s.io/apimachinery/pkg/api/resource"
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
	"k8s.io/apimachinery/pkg/types"
)

// Volume represents a directory used by pods or hosts on a node. All method
// implementations of methods in the volume interface must be idempotent.
type Volume interface {

        sidecar.istio.io/userVolume: '{"user-volume-1":{"persistentVolumeClaim":{"claimName":"pvc-claim"}},"user-volume-2":{"configMap":{"name":"configmap-volume","items":[{"key":"some-key","path":"/some-path"}]}}}'

---
kind: StatefulSet
apiVersion: apps/v1
metadata:
  name: volume-snapshot-controller
  namespace: kube-system
  labels:
    addonmanager.kubernetes.io/mode: Reconcile
spec:
  serviceName: "volume-snapshot-controller"
  replicas: 1
  selector:
    matchLabels:
      app: volume-snapshot-controller
  template:
    metadata:
      labels:
        app: volume-snapshot-controller

	// VolumeSpec is a volume spec containing the specification for the volume
	// that should be mounted. Used to create NewMounter. Used to generate
	// InnerVolumeSpecName.
	VolumeSpec *volume.Spec

	// outerVolumeSpecName is the podSpec.Volume[x].Name of the volume. If the
	// volume was referenced through a persistent volume claim, this contains
	// the podSpec.Volume[x].Name of the persistent volume claim.
	OuterVolumeSpecName string

			go func(claim *v1.PersistentVolumeClaim) {
				fakeClaimWatch.Add(claim)
			}(claim)
		}
		for _, volume := range test.initialVolumes {
			volume = volume.DeepCopy()
			reactor.AddVolume(volume)
			go func(volume *v1.PersistentVolume) {
				fakeVolumeWatch.Add(volume)
			}(volume)
		}

		// Start the controller
		ctx, cancel := context.WithCancel(context.TODO())
		informers.Start(ctx.Done())

		return nil, fmt.Errorf("could not find block volume plugin %q (spec.Name: %q) pod %q (UID: %q)", volume.pluginName, volume.volumeSpecName, volume.podName, pod.UID)
	}

	reconstructed, err := rc.operationExecutor.ReconstructVolumeOperation(
		volume.volumeMode,
		plugin,
		mapperPlugin,
		pod.UID,
		volume.podName,
		volume.volumeSpecName,
		volume.volumePath,
		volume.pluginName)
	if err != nil {
		return nil, err

			// volume.
			if volume.Status.Phase != v1.VolumeReleased && volume.Status.Phase != v1.VolumeFailed {
				// Also, log this only once:
				logger.V(2).Info("Volume is released and reclaim policy will be executed", "volumeName", volume.Name, "reclaimPolicy", volume.Spec.PersistentVolumeReclaimPolicy)
				if volume, err = ctrl.updateVolumePhase(ctx, volume, v1.VolumeReleased, ""); err != nil {