"k8s.io/utils/exec"

	// Volume plugins
	"k8s.io/kubernetes/pkg/volume"
	"k8s.io/kubernetes/pkg/volume/configmap"
	"k8s.io/kubernetes/pkg/volume/csi"
	"k8s.io/kubernetes/pkg/volume/downwardapi"
	"k8s.io/kubernetes/pkg/volume/emptydir"
	"k8s.io/kubernetes/pkg/volume/fc"
	"k8s.io/kubernetes/pkg/volume/flexvolume"
	"k8s.io/kubernetes/pkg/volume/git_repo"
	"k8s.io/kubernetes/pkg/volume/hostpath"
	"k8s.io/kubernetes/pkg/volume/iscsi"

	"k8s.io/kubernetes/pkg/volume"
	volumeutil "k8s.io/kubernetes/pkg/volume/util"
)

type iscsiAttacher struct {
	host        volume.VolumeHost
	targetLocks keymutex.KeyMutex
	manager     diskManager
}

var _ volume.Attacher = &iscsiAttacher{}

var _ volume.DeviceMounter = &iscsiAttacher{}

var _ volume.AttachableVolumePlugin = &iscsiPlugin{}

var _ volume.DeviceMountableVolumePlugin = &iscsiPlugin{}

	"k8s.io/kubernetes/pkg/features"
	"k8s.io/kubernetes/pkg/volume"
	"k8s.io/kubernetes/pkg/volume/csimigration"
	"k8s.io/kubernetes/pkg/volume/portworx"
)

type probeFn func() []volume.VolumePlugin

func appendPluginBasedOnFeatureFlags(logger klog.Logger, plugins []volume.VolumePlugin, inTreePluginName string, featureGate featuregate.FeatureGate, pluginInfo pluginInfo) ([]volume.VolumePlugin, error) {

	"k8s.io/kubernetes/pkg/volume"
	"k8s.io/kubernetes/pkg/volume/configmap"
	"k8s.io/kubernetes/pkg/volume/csi"
	"k8s.io/kubernetes/pkg/volume/downwardapi"
	"k8s.io/kubernetes/pkg/volume/emptydir"
	"k8s.io/kubernetes/pkg/volume/fc"
	"k8s.io/kubernetes/pkg/volume/git_repo"
	"k8s.io/kubernetes/pkg/volume/hostpath"
	"k8s.io/kubernetes/pkg/volume/iscsi"
	"k8s.io/kubernetes/pkg/volume/local"
	"k8s.io/kubernetes/pkg/volume/nfs"

func getSourceFromSpec(spec *volume.Spec) (*api.CSIVolumeSource, *api.CSIPersistentVolumeSource, error) {
	if spec == nil {
		return nil, nil, fmt.Errorf("volume.Spec nil")
	}
	if spec.Volume != nil && spec.PersistentVolume != nil {
		return nil, nil, fmt.Errorf("volume.Spec has both volume and persistent volume sources")
	}
	if spec.Volume != nil && spec.Volume.CSI != nil {
		return spec.Volume.CSI, nil, nil
	}

	"k8s.io/klog/v2"
	"k8s.io/kubernetes/pkg/volume"
	volumeutil "k8s.io/kubernetes/pkg/volume/util"
	"k8s.io/mount-utils"
)

type fcAttacher struct {
	host    volume.VolumeHost
	manager diskManager
}

var _ volume.Attacher = &fcAttacher{}

var _ volume.DeviceMounter = &fcAttacher{}

var _ volume.AttachableVolumePlugin = &fcPlugin{}

var _ volume.DeviceMountableVolumePlugin = &fcPlugin{}

// supported by an in-tree plugin to CSI
func TranslateInTreeSpecToCSI(spec *volume.Spec, podNamespace string, translator InTreeToCSITranslator) (*volume.Spec, error) {
	var csiPV *v1.PersistentVolume
	var err error
	inlineVolume := false
	if spec.PersistentVolume != nil {
		csiPV, err = translator.TranslateInTreePVToCSI(spec.PersistentVolume)
	} else if spec.Volume != nil {

	volumeStatsHealthAbnormalDesc = metrics.NewDesc(
		metrics.BuildFQName("", kubeletmetrics.KubeletSubsystem, kubeletmetrics.VolumeStatsHealthStatusAbnormalKey),
		"Abnormal volume health status. The count is either 1 or 0. 1 indicates the volume is unhealthy, 0 indicates volume is healthy",
		[]string{"namespace", "persistentvolumeclaim"}, nil,
		metrics.ALPHA, "")
)

type volumeStatsCollector struct {
	metrics.BaseStableCollector

			return FileInfoVersions{}, err
		}
		versions, err = xlMeta.ListVersions(volume, path, allParts)
	}
	if err == nil && len(versions) == 0 {
		// This special case is needed to handle len(xlMeta.versions) == 0
		versions = []FileInfo{
			{
				Volume:   volume,
				Name:     path,
				Deleted:  true,
				IsLatest: true,
				ModTime:  timeSentinel1970,
			},
		}
	}
	if err != nil {

}

// Returns whole-file bitrot writer.
func newWholeBitrotWriter(disk StorageAPI, volume, filePath string, algo BitrotAlgorithm, shardSize int64) io.WriteCloser {
	return &wholeBitrotWriter{disk, volume, filePath, shardSize, algo.New()}
}

// Implementation to verify bitrot for the whole file.
type wholeBitrotReader struct {
	disk       StorageAPI
	volume     string
	filePath   string
	verifier   *BitrotVerifier // Holds the bit-rot info