testsuites

package
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 Go to latest Published: Jan 21, 2020 License: Apache-2.0 Imports: 47 Imported by: 57

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Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func CSIInlineVolumesEnabled added in v1.16.0 

func CSIInlineVolumesEnabled(c clientset.Interface, ns string) (bool, error)

CSIInlineVolumesEnabled checks whether the running cluster has the CSIInlineVolumes feature gate enabled. It does that by trying to create a pod that uses that feature.

func DefineTestSuite added in v1.14.0 

func DefineTestSuite(driver TestDriver, tsInits []func() TestSuite)

DefineTestSuite defines tests for all testpatterns and all testSuites for a driver

func ExpandPVCSize added in v1.16.0 

func ExpandPVCSize(origPVC *v1.PersistentVolumeClaim, size resource.Quantity, c clientset.Interface) (*v1.PersistentVolumeClaim, error)

ExpandPVCSize expands PVC size

func GetDriverNameWithFeatureTags added in v1.14.0 

func GetDriverNameWithFeatureTags(driver TestDriver) string

GetDriverNameWithFeatureTags returns driver name with feature tags For example)

  • [Driver: nfs]
  • [Driver: rbd][Feature:Volumes]

func GetSnapshotClass added in v1.14.0 

func GetSnapshotClass(
	snapshotter string,
	parameters map[string]string,
	ns string,
	suffix string,
) *unstructured.Unstructured

GetSnapshotClass constructs a new SnapshotClass instance with a unique name that is based on namespace + suffix.

func GetStorageClass added in v1.14.0 

func GetStorageClass(
	provisioner string,
	parameters map[string]string,
	bindingMode *storagev1.VolumeBindingMode,
	ns string,
	suffix string,
) *storagev1.StorageClass

GetStorageClass constructs a new StorageClass instance with a unique name that is based on namespace + suffix.

func PVMultiNodeCheck added in v1.14.0 

func PVMultiNodeCheck(client clientset.Interface, claim *v1.PersistentVolumeClaim, node e2epod.NodeSelection)

PVMultiNodeCheck checks that a PV retains data when moved between nodes.

It starts these pods: - The first pod writes 'hello word' to the /mnt/test (= the volume) on one node. - The second pod runs grep 'hello world' on /mnt/test on another node.

The first node is selected by Kubernetes when scheduling the first pod. The second pod uses the same criteria, except that a special anti-affinity for the first node gets added. This test can only pass if the cluster has more than one suitable node. The caller has to ensure that.

If all succeeds, Kubernetes actually allocated something that is persistent across pods and across nodes.

This is a common test that can be called from a StorageClassTest.PvCheck.

func PVWriteReadSingleNodeCheck added in v1.14.0 

func PVWriteReadSingleNodeCheck(client clientset.Interface, claim *v1.PersistentVolumeClaim, node e2epod.NodeSelection) *v1.PersistentVolume

PVWriteReadSingleNodeCheck checks that a PV retains data on a single node and returns the PV.

It starts two pods: - The first pod writes 'hello word' to the /mnt/test (= the volume) on one node. - The second pod runs grep 'hello world' on /mnt/test on the same node.

The node is selected by Kubernetes when scheduling the first pod. It's then selected via its name for the second pod.

If both succeed, Kubernetes actually allocated something that is persistent across pods.

This is a common test that can be called from a StorageClassTest.PvCheck.

func RunInPodWithVolume added in v1.14.0 

func RunInPodWithVolume(c clientset.Interface, ns, claimName, podName, command string, node e2epod.NodeSelection)

RunInPodWithVolume runs a command in a pod with given claim mounted to /mnt directory. It starts, checks, collects output and stops it.

func StartInPodWithInlineVolume added in v1.16.0 

func StartInPodWithInlineVolume(c clientset.Interface, ns, podName, command string, csiVolumes []v1.CSIVolumeSource, readOnly bool, node e2epod.NodeSelection) *v1.Pod

StartInPodWithInlineVolume starts a command in a pod with given volume(s) mounted to /mnt/test-<number> directory. The caller is responsible for checking the pod and deleting it.

func StartInPodWithVolume added in v1.14.0 

func StartInPodWithVolume(c clientset.Interface, ns, claimName, podName, command string, node e2epod.NodeSelection) *v1.Pod

StartInPodWithVolume starts a command in a pod with given claim mounted to /mnt directory The caller is responsible for checking the pod and deleting it.

func StartPodLogs added in v1.14.0 

func StartPodLogs(f *framework.Framework) func()

StartPodLogs begins capturing log output and events from current and future pods running in the namespace of the framework. That ends when the returned cleanup function is called.

The output goes to log files (when using --report-dir, as in the CI) or the output stream (otherwise).

func StopPod added in v1.14.0 

func StopPod(c clientset.Interface, pod *v1.Pod)

StopPod first tries to log the output of the pod's container, then deletes the pod and waits for that to succeed.

func SubpathTestPod 

func SubpathTestPod(f *framework.Framework, subpath, volumeType string, source *v1.VolumeSource, privilegedSecurityContext bool) *v1.Pod

SubpathTestPod returns a pod spec for subpath tests

func TestAccessMultipleVolumesAcrossPodRecreation added in v1.15.0 

func TestAccessMultipleVolumesAcrossPodRecreation(f *framework.Framework, cs clientset.Interface, ns string,
	node e2epod.NodeSelection, pvcs []*v1.PersistentVolumeClaim, requiresSameNode bool)

TestAccessMultipleVolumesAcrossPodRecreation tests access to multiple volumes from single pod, then recreate pod on the same or different node depending on requiresSameNode, and recheck access to the volumes from the recreated pod

func TestBasicSubpath 

func TestBasicSubpath(f *framework.Framework, contents string, pod *v1.Pod)

TestBasicSubpath runs basic subpath test

func TestBasicSubpathFile 

func TestBasicSubpathFile(f *framework.Framework, contents string, pod *v1.Pod, filepath string)

TestBasicSubpathFile runs basic subpath file test

func TestConcurrentAccessToSingleVolume added in v1.15.0 

func TestConcurrentAccessToSingleVolume(f *framework.Framework, cs clientset.Interface, ns string,
	node e2epod.NodeSelection, pvc *v1.PersistentVolumeClaim, numPods int, requiresSameNode bool)

TestConcurrentAccessToSingleVolume tests access to a single volume from multiple pods, then delete the last pod, and recheck access to the volume after pod deletion to check if other pod deletion doesn't affect. Pods are deployed on the same node or different nodes depending on requiresSameNode. Read/write check are done across pod, by check reading both what pod{n-1} and pod{n} wrote from pod{n}.

func WaitForControllerVolumeResize added in v1.16.0 

func WaitForControllerVolumeResize(pvc *v1.PersistentVolumeClaim, c clientset.Interface, duration time.Duration) error

WaitForControllerVolumeResize waits for the controller resize to be finished

func WaitForFSResize added in v1.16.0 

func WaitForFSResize(pvc *v1.PersistentVolumeClaim, c clientset.Interface) (*v1.PersistentVolumeClaim, error)

WaitForFSResize waits for the filesystem in the pv to be resized

func WaitForPendingFSResizeCondition added in v1.18.0 

func WaitForPendingFSResizeCondition(pvc *v1.PersistentVolumeClaim, c clientset.Interface) (*v1.PersistentVolumeClaim, error)

WaitForPendingFSResizeCondition waits for pvc to have resize condition

func WaitForResizingCondition added in v1.16.0 

func WaitForResizingCondition(pvc *v1.PersistentVolumeClaim, c clientset.Interface, duration time.Duration) error

WaitForResizingCondition waits for the pvc condition to be PersistentVolumeClaimResizing

func WaitForSnapshotReady added in v1.14.0 

func WaitForSnapshotReady(c dynamic.Interface, ns string, snapshotName string, Poll, timeout time.Duration) error

WaitForSnapshotReady waits for a VolumeSnapshot to be ready to use or until timeout occurs, whichever comes first.

Types

type Capability added in v1.14.0 

type Capability string

Capability represents a feature that a volume plugin supports 

const (
	CapPersistence        Capability = "persistence"        // data is persisted across pod restarts
	CapBlock              Capability = "block"              // raw block mode
	CapFsGroup            Capability = "fsGroup"            // volume ownership via fsGroup
	CapExec               Capability = "exec"               // exec a file in the volume
	CapSnapshotDataSource Capability = "snapshotDataSource" // support populate data from snapshot
	CapPVCDataSource      Capability = "pvcDataSource"      // support populate data from pvc

	// multiple pods on a node can use the same volume concurrently;
	// for CSI, see:
	// - https://github.com/container-storage-interface/spec/pull/150
	// - https://github.com/container-storage-interface/spec/issues/178
	// - NodeStageVolume in the spec
	CapMultiPODs Capability = "multipods"

	CapRWX                 Capability = "RWX"                 // support ReadWriteMany access modes
	CapControllerExpansion Capability = "controllerExpansion" // support volume expansion for controller
	CapNodeExpansion       Capability = "nodeExpansion"       // support volume expansion for node
	CapVolumeLimits        Capability = "volumeLimits"        // support volume limits (can be *very* slow)
	CapSingleNodeVolume    Capability = "singleNodeVolume"    // support volume that can run on single node (like hostpath)
	CapTopology            Capability = "topology"            // support topology
)

Constants related to capability

type DriverInfo added in v1.14.0 

type DriverInfo struct {
	// Internal name of the driver, this is used as a display name in the test
	// case and test objects
	Name string
	// Fully qualified plugin name as registered in Kubernetes of the in-tree
	// plugin if it exists and is empty if this DriverInfo represents a CSI
	// Driver
	InTreePluginName string
	FeatureTag       string // FeatureTag for the driver

	// Maximum single file size supported by this driver
	MaxFileSize int64
	// The range of disk size supported by this driver
	SupportedSizeRange volume.SizeRange
	// Map of string for supported fs type
	SupportedFsType sets.String
	// Map of string for supported mount option
	SupportedMountOption sets.String
	// [Optional] Map of string for required mount option
	RequiredMountOption sets.String
	// Map that represents plugin capabilities
	Capabilities map[Capability]bool
	// [Optional] List of access modes required for provisioning, defaults to
	// RWO if unset
	RequiredAccessModes []v1.PersistentVolumeAccessMode
	// [Optional] List of topology keys driver supports
	TopologyKeys []string
	// [Optional] Number of allowed topologies the driver requires.
	// Only relevant if TopologyKeys is set. Defaults to 1.
	// Example: multi-zonal disk requires at least 2 allowed topologies.
	NumAllowedTopologies int
}

DriverInfo represents static information about a TestDriver.

type DynamicPVTestDriver added in v1.14.0 

type DynamicPVTestDriver interface {
	TestDriver
	// GetDynamicProvisionStorageClass returns a StorageClass dynamic provision Persistent Volume.
	// The StorageClass must be created in the current test's namespace and have
	// a unique name inside that namespace because GetDynamicProvisionStorageClass might
	// be called more than once per test.
	// It will set fsType to the StorageClass, if TestDriver supports it.
	// It will return nil, if the TestDriver doesn't support it.
	GetDynamicProvisionStorageClass(config *PerTestConfig, fsType string) *storagev1.StorageClass
}

DynamicPVTestDriver represents an interface for a TestDriver that supports DynamicPV

type EphemeralTest added in v1.16.0 

type EphemeralTest struct {
	Client     clientset.Interface
	Namespace  string
	DriverName string
	Node       e2epod.NodeSelection

	// GetVolume returns the volume attributes for a
	// certain inline ephemeral volume, enumerated starting with
	// #0. Some tests might require more than one volume. They can
	// all be the same or different, depending what the driver supports
	// and/or wants to test.
	//
	// For each volume, the test driver can specify the
	// attributes, whether two pods using those attributes will
	// end up sharing the same backend storage (i.e. changes made
	// in one pod will be visible in the other), and whether
	// the volume can be mounted read/write or only read-only.
	GetVolume func(volumeNumber int) (attributes map[string]string, shared bool, readOnly bool)

	// RunningPodCheck is invoked while a pod using an inline volume is running.
	// It can execute additional checks on the pod and its volume(s). Any data
	// returned by it is passed to StoppedPodCheck.
	RunningPodCheck func(pod *v1.Pod) interface{}

	// StoppedPodCheck is invoked after ensuring that the pod is gone.
	// It is passed the data gather by RunningPodCheck or nil if that
	// isn't defined and then can do additional checks on the node,
	// like for example verifying that the ephemeral volume was really
	// removed. How to do such a check is driver-specific and not
	// covered by the generic storage test suite.
	StoppedPodCheck func(nodeName string, runningPodData interface{})

	// NumInlineVolumes sets the number of ephemeral inline volumes per pod.
	// Unset (= zero) is the same as one.
	NumInlineVolumes int

	// ReadOnly limits mounting to read-only.
	ReadOnly bool
}

EphemeralTest represents parameters to be used by tests for inline volumes. Not all parameters are used by all tests.

func (EphemeralTest) TestEphemeral added in v1.16.0 

func (t EphemeralTest) TestEphemeral()

TestEphemeral tests pod creation with one ephemeral volume.

type EphemeralTestDriver added in v1.16.0 

type EphemeralTestDriver interface {
	TestDriver

	// GetVolume returns the volume attributes for a certain
	// inline ephemeral volume, enumerated starting with #0. Some
	// tests might require more than one volume. They can all be
	// the same or different, depending what the driver supports
	// and/or wants to test.
	//
	// For each volume, the test driver can return volume attributes,
	// whether the resulting volume is shared between different pods (i.e.
	// changes made in one pod are visible in another), and whether the
	// volume can be mounted read/write or only read-only.
	GetVolume(config *PerTestConfig, volumeNumber int) (attributes map[string]string, shared bool, readOnly bool)

	// GetCSIDriverName returns the name that was used when registering with
	// kubelet. Depending on how the driver was deployed, this can be different
	// from DriverInfo.Name. Starting with Kubernetes 1.16, there must also
	// be a CSIDriver object under the same name with a "mode" field that enables
	// usage of the driver for ephemeral inline volumes.
	GetCSIDriverName(config *PerTestConfig) string
}

EphemeralTestDriver represents an interface for a TestDriver that supports ephemeral inline volumes.

type InlineVolumeTestDriver added in v1.14.0 

type InlineVolumeTestDriver interface {
	PreprovisionedVolumeTestDriver

	// GetVolumeSource returns a volumeSource for inline volume.
	// It will set readOnly and fsType to the volumeSource, if TestDriver supports both of them.
	// It will return nil, if the TestDriver doesn't support either of the parameters.
	GetVolumeSource(readOnly bool, fsType string, testVolume TestVolume) *v1.VolumeSource
}

InlineVolumeTestDriver represents an interface for a TestDriver that supports InlineVolume

type PerTestConfig added in v1.14.0 

type PerTestConfig struct {
	// The test driver for the test.
	Driver TestDriver

	// Some short word that gets inserted into dynamically
	// generated entities (pods, paths) as first part of the name
	// to make debugging easier. Can be the same for different
	// tests inside the test suite.
	Prefix string

	// The framework instance allocated for the current test.
	Framework *framework.Framework

	// If non-empty, then pods using a volume will be scheduled
	// onto the node with this name. Otherwise Kubernetes will
	// pick a node.
	ClientNodeName string

	// Some tests also support scheduling pods onto nodes with
	// these label/value pairs. As not all tests use this field,
	// a driver that absolutely needs the pods on a specific
	// node must use ClientNodeName.
	ClientNodeSelector map[string]string

	// Some test drivers initialize a storage server. This is
	// the configuration that then has to be used to run tests.
	// The values above are ignored for such tests.
	ServerConfig *volume.TestConfig
}

PerTestConfig represents parameters that control test execution. One instance gets allocated for each test and is then passed via pointer to functions involved in the test.

func (*PerTestConfig) GetUniqueDriverName added in v1.14.0 

func (config *PerTestConfig) GetUniqueDriverName() string

GetUniqueDriverName returns unique driver name that can be used parallelly in tests

type PreprovisionedPVTestDriver added in v1.14.0 

type PreprovisionedPVTestDriver interface {
	PreprovisionedVolumeTestDriver
	// GetPersistentVolumeSource returns a PersistentVolumeSource with volume node affinity for pre-provisioned Persistent Volume.
	// It will set readOnly and fsType to the PersistentVolumeSource, if TestDriver supports both of them.
	// It will return nil, if the TestDriver doesn't support either of the parameters.
	GetPersistentVolumeSource(readOnly bool, fsType string, testVolume TestVolume) (*v1.PersistentVolumeSource, *v1.VolumeNodeAffinity)
}

PreprovisionedPVTestDriver represents an interface for a TestDriver that supports PreprovisionedPV

type PreprovisionedVolumeTestDriver added in v1.14.0 

type PreprovisionedVolumeTestDriver interface {
	TestDriver
	// CreateVolume creates a pre-provisioned volume of the desired volume type.
	CreateVolume(config *PerTestConfig, volumeType testpatterns.TestVolType) TestVolume
}

PreprovisionedVolumeTestDriver represents an interface for a TestDriver that has pre-provisioned volume

type SnapshottableTestDriver added in v1.14.0 

type SnapshottableTestDriver interface {
	TestDriver
	// GetSnapshotClass returns a SnapshotClass to create snapshot.
	// It will return nil, if the TestDriver doesn't support it.
	GetSnapshotClass(config *PerTestConfig) *unstructured.Unstructured
}

SnapshottableTestDriver represents an interface for a TestDriver that supports DynamicSnapshot

type StorageClassTest added in v1.13.0 

type StorageClassTest struct {
	Client               clientset.Interface
	Claim                *v1.PersistentVolumeClaim
	SourceClaim          *v1.PersistentVolumeClaim
	Class                *storagev1.StorageClass
	Name                 string
	CloudProviders       []string
	Provisioner          string
	StorageClassName     string
	Parameters           map[string]string
	DelayBinding         bool
	ClaimSize            string
	ExpectedSize         string
	PvCheck              func(claim *v1.PersistentVolumeClaim)
	VolumeMode           v1.PersistentVolumeMode
	AllowVolumeExpansion bool
}

StorageClassTest represents parameters to be used by provisioning tests. Not all parameters are used by all tests.

func (StorageClassTest) TestBindingWaitForFirstConsumerMultiPVC added in v1.14.0 

func (t StorageClassTest) TestBindingWaitForFirstConsumerMultiPVC(claims []*v1.PersistentVolumeClaim, nodeSelector map[string]string, expectUnschedulable bool) ([]*v1.PersistentVolume, *v1.Node)

TestBindingWaitForFirstConsumerMultiPVC tests the binding with WaitForFirstConsumer mode

func (StorageClassTest) TestDynamicProvisioning added in v1.14.0 

func (t StorageClassTest) TestDynamicProvisioning() *v1.PersistentVolume

TestDynamicProvisioning tests dynamic provisioning with specified StorageClassTest

type TestDriver added in v1.14.0 

type TestDriver interface {
	// GetDriverInfo returns DriverInfo for the TestDriver. This must be static
	// information.
	GetDriverInfo() *DriverInfo

	// SkipUnsupportedTest skips test if Testpattern is not
	// suitable to test with the TestDriver. It gets called after
	// parsing parameters of the test suite and before the
	// framework is initialized. Cheap tests that just check
	// parameters like the cloud provider can and should be
	// done in SkipUnsupportedTest to avoid setting up more
	// expensive resources like framework.Framework. Tests that
	// depend on a connection to the cluster can be done in
	// PrepareTest once the framework is ready.
	SkipUnsupportedTest(testpatterns.TestPattern)

	// PrepareTest is called at test execution time each time a new test case is about to start.
	// It sets up all necessary resources and returns the per-test configuration
	// plus a cleanup function that frees all allocated resources.
	PrepareTest(f *framework.Framework) (*PerTestConfig, func())
}

TestDriver represents an interface for a driver to be tested in TestSuite. Except for GetDriverInfo, all methods will be called at test runtime and thus can use framework.Skipf, framework.Fatal, Gomega assertions, etc.

type TestSuite 

type TestSuite interface {
	// GetTestSuiteInfo returns the TestSuiteInfo for this TestSuite
	GetTestSuiteInfo() TestSuiteInfo
	// DefineTests defines tests of the testpattern for the driver.
	// Called inside a Ginkgo context that reflects the current driver and test pattern,
	// so the test suite can define tests directly with ginkgo.It.
	DefineTests(TestDriver, testpatterns.TestPattern)
	// SkipRedundantSuite will skip the test suite based on the given TestPattern and TestDriver
	SkipRedundantSuite(TestDriver, testpatterns.TestPattern)
}

TestSuite represents an interface for a set of tests which works with TestDriver

func InitDisruptiveTestSuite added in v1.16.0 

func InitDisruptiveTestSuite() TestSuite

InitDisruptiveTestSuite returns subPathTestSuite that implements TestSuite interface

func InitEphemeralTestSuite added in v1.16.0 

func InitEphemeralTestSuite() TestSuite

InitEphemeralTestSuite returns ephemeralTestSuite that implements TestSuite interface

func InitMultiVolumeTestSuite added in v1.15.0 

func InitMultiVolumeTestSuite() TestSuite

InitMultiVolumeTestSuite returns multiVolumeTestSuite that implements TestSuite interface

func InitProvisioningTestSuite added in v1.13.0 

func InitProvisioningTestSuite() TestSuite

InitProvisioningTestSuite returns provisioningTestSuite that implements TestSuite interface

func InitSnapshottableTestSuite added in v1.14.0 

func InitSnapshottableTestSuite() TestSuite

InitSnapshottableTestSuite returns snapshottableTestSuite that implements TestSuite interface

func InitSubPathTestSuite 

func InitSubPathTestSuite() TestSuite

InitSubPathTestSuite returns subPathTestSuite that implements TestSuite interface

func InitTopologyTestSuite added in v1.17.0 

func InitTopologyTestSuite() TestSuite

InitTopologyTestSuite returns topologyTestSuite that implements TestSuite interface

func InitVolumeExpandTestSuite added in v1.16.0 

func InitVolumeExpandTestSuite() TestSuite

InitVolumeExpandTestSuite returns volumeExpandTestSuite that implements TestSuite interface

func InitVolumeIOTestSuite 

func InitVolumeIOTestSuite() TestSuite

InitVolumeIOTestSuite returns volumeIOTestSuite that implements TestSuite interface

func InitVolumeLimitsTestSuite added in v1.16.0 

func InitVolumeLimitsTestSuite() TestSuite

InitVolumeLimitsTestSuite returns volumeLimitsTestSuite that implements TestSuite interface

func InitVolumeModeTestSuite 

func InitVolumeModeTestSuite() TestSuite

InitVolumeModeTestSuite returns volumeModeTestSuite that implements TestSuite interface

func InitVolumesTestSuite 

func InitVolumesTestSuite() TestSuite

InitVolumesTestSuite returns volumesTestSuite that implements TestSuite interface

type TestSuiteInfo 

type TestSuiteInfo struct {
	Name               string                     // name of the TestSuite
	FeatureTag         string                     // featureTag for the TestSuite
	TestPatterns       []testpatterns.TestPattern // Slice of TestPattern for the TestSuite
	SupportedSizeRange volume.SizeRange           // Size range supported by the test suite
}

TestSuiteInfo represents a set of parameters for TestSuite

type TestVolume added in v1.14.0 

type TestVolume interface {
	DeleteVolume()
}

TestVolume is the result of PreprovisionedVolumeTestDriver.CreateVolume. The only common functionality is to delete it. Individual driver interfaces have additional methods that work with volumes created by them.

func CreateVolume added in v1.14.0 

func CreateVolume(driver TestDriver, config *PerTestConfig, volType testpatterns.TestVolType) TestVolume

CreateVolume creates volume for test unless dynamicPV or CSI ephemeral inline volume test

type VolumeResource added in v1.18.0 

type VolumeResource struct {
	Config    *PerTestConfig
	Pattern   testpatterns.TestPattern
	VolSource *v1.VolumeSource
	Pvc       *v1.PersistentVolumeClaim
	Pv        *v1.PersistentVolume
	Sc        *storagev1.StorageClass

	Volume TestVolume
}

VolumeResource is a generic implementation of TestResource that wil be able to be used in most of TestSuites. See volume_io.go or volumes.go in test/e2e/storage/testsuites/ for how to use this resource. Also, see subpath.go in the same directory for how to extend and use it.

func CreateVolumeResource added in v1.18.0 

func CreateVolumeResource(driver TestDriver, config *PerTestConfig, pattern testpatterns.TestPattern, testVolumeSizeRange volume.SizeRange) *VolumeResource

CreateVolumeResource constructs a VolumeResource for the current test. It knows how to deal with different test pattern volume types.

func (*VolumeResource) CleanupResource added in v1.18.0 

func (r *VolumeResource) CleanupResource() error

CleanupResource cleans up VolumeResource

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