Spec: v1.PersistentVolumeSpec{
			StorageClassName: storageClassName,
		},
	})
	pvs := []*v1.PersistentVolume{}
	for _, obj := range objs {
		pv, ok := obj.(*v1.PersistentVolume)
		if !ok {
			c.logger.Error(&assumecache.WrongTypeError{TypeName: "v1.PersistentVolume", Object: obj}, "ListPVs")
			continue
		}
		pvs = append(pvs, pv)
	}
	return pvs
}

// PVCAssumeCache is a AssumeCache for PersistentVolumeClaim objects

func (pvIndex *persistentVolumeOrderedIndex) findByClaim(claim *v1.PersistentVolumeClaim, delayBinding bool) (*v1.PersistentVolume, error) {
	// PVs are indexed by their access modes to allow easier searching.  Each
	// index is the string representation of a set of access modes. There is a
	// finite number of possible sets and PVs will only be indexed in one of
	// them (whichever index matches the PV's modes).
	//

package util

const (
	// PVCProtectionFinalizer is the name of finalizer on PVCs that have a running pod.
	PVCProtectionFinalizer = "kubernetes.io/pvc-protection"

	// PVProtectionFinalizer is the name of finalizer on PVs that are bound by PVCs
	PVProtectionFinalizer = "kubernetes.io/pv-protection"

	"k8s.io/client-go/tools/cache"
)

type graphPopulator struct {
	graph *Graph
}

func AddGraphEventHandlers(
	graph *Graph,
	nodes corev1informers.NodeInformer,
	pods corev1informers.PodInformer,
	pvs corev1informers.PersistentVolumeInformer,
	attachments storageinformers.VolumeAttachmentInformer,
	slices resourcev1alpha2informers.ResourceSliceInformer,
) {
	g := &graphPopulator{
		graph: graph,
	}

	"k8s.io/kubernetes/pkg/controller/volume/protectionutil"
	"k8s.io/kubernetes/pkg/util/slice"
	volumeutil "k8s.io/kubernetes/pkg/volume/util"
)

// Controller is controller that removes PVProtectionFinalizer
// from PVs that are not bound to PVCs.
type Controller struct {
	client clientset.Interface

	pvLister       corelisters.PersistentVolumeLister
	pvListerSynced cache.InformerSynced

	// Shape specifies the points defining the score function shape, which is
	// used to score nodes based on the utilization of statically provisioned
	// PVs. The utilization is calculated by dividing the total requested
	// storage of the pod by the total capacity of feasible PVs on each node.
	// Each point contains utilization (ranges from 0 to 100) and its
	// associated score (ranges from 0 to 10). You can turn the priority by

		Handler: admission.NewHandler(admission.Create),
	}
}

var (
	pvResource  = api.Resource("persistentvolumes")
	pvcResource = api.Resource("persistentvolumeclaims")
)

// Admit sets finalizer on all PVCs(PVs). The finalizer is removed by
// PVCProtectionController(PVProtectionController) when it's not referenced.
//
// This prevents users from deleting a PVC that's used by a running pod.

	LabelTopologyRegion = "topology.kubernetes.io/region"

	// These label have been deprecated since 1.17, but will be supported for
	// the foreseeable future, to accommodate things like long-lived PVs that
	// use them.  New users should prefer the "topology.kubernetes.io/*"
	// equivalents.
	LabelFailureDomainBetaZone   = "failure-domain.beta.kubernetes.io/zone"   // deprecated