return nil, cleanupAction, err
		}

		subPath := mount.SubPath
		if mount.SubPathExpr != "" {
			subPath, err = kubecontainer.ExpandContainerVolumeMounts(mount, expandEnvs)

			if err != nil {
				return nil, cleanupAction, err
			}
		}

		if subPath != "" {
			if utilfs.IsAbs(subPath) {
				return nil, cleanupAction, fmt.Errorf("error SubPath `%s` must not be an absolute path", subPath)
			}

	volumesecret "k8s.io/kubernetes/pkg/volume/secret"
	volumetest "k8s.io/kubernetes/pkg/volume/testing"
	"k8s.io/kubernetes/pkg/volume/util"
	"k8s.io/kubernetes/pkg/volume/util/hostutil"
	"k8s.io/kubernetes/pkg/volume/util/subpath"
	"k8s.io/utils/clock"
	testingclock "k8s.io/utils/clock/testing"
	utilpointer "k8s.io/utils/pointer"
)

func init() {
}

const (
	testKubeletHostname = "127.0.0.1"

	cgroupRoot string

	// Mounter to use for volumes.
	mounter mount.Interface

	// hostutil to interact with filesystems
	hostutil hostutil.HostUtils

	// subpather to execute subpath actions
	subpather subpath.Interface

	// Manager of non-Runtime containers.
	containerManager cm.ContainerManager

	// Maximum Number of Pods which can be run by this Kubelet
	maxPods int

            - name: config
              mountPath: "/etc/grafana/provisioning/datasources/datasources.yaml"
              subPath: "datasources.yaml"
            - name: config
              mountPath: "/etc/grafana/provisioning/dashboards/dashboardproviders.yaml"
              subPath: "dashboardproviders.yaml"
          ports:
            - name: grafana
              containerPort: 3000
              protocol: TCP

inherited from class java.lang.Object clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait Constructor Detail FeatureMatcher public FeatureMatcher(Matcher<? super U> subMatcher, java.lang.String featureDescription, java.lang.String featureName) Constructor Parameters: subMatcher - The matcher to apply to the feature featureDescription - Descriptive text to use in describeTo featureName - Identifying text for mismatch message Method Detail featureValueOf protected abstract...

        },
        "subPath": {
          "description": "Path within the volume from which the container's volume should be mounted. Defaults to \"\" (volume's root).",
          "type": "string"
        },
        "subPathExpr": {

		podDir := filepath.Join(podsDir, string(volumeToUnmount.PodUID))
		if err := subpather.CleanSubPaths(podDir, volumeToUnmount.InnerVolumeSpecName); err != nil {
			eventErr, detailedErr := volumeToUnmount.GenerateError("error cleaning subPath mounts", err)
			return volumetypes.NewOperationContext(eventErr, detailedErr, migrated)
		}

		// Execute unmount
		unmountErr := volumeUnmounter.TearDown()
		if unmountErr != nil {

* Implement TLS bootstrap for kubelet using `--experimental-bootstrap-kubeconfig`  (2nd take) ([#30922](https://github.com/kubernetes/kubernetes/pull/30922), [@yifan-gu](https://github.com/yifan-gu))
* rkt: Support subPath volume mounts feature ([#30934](https://github.com/kubernetes/kubernetes/pull/30934), [@yifan-gu](https://github.com/yifan-gu))