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testing.go
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/*
Copyright 2014 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package testing
import (
"fmt"
"net"
"os"
"os/exec"
"path"
"strings"
"sync"
"testing"
"time"
authenticationv1 "k8s.io/api/authentication/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"
"k8s.io/apimachinery/pkg/util/uuid"
clientset "k8s.io/client-go/kubernetes"
storagelisters "k8s.io/client-go/listers/storage/v1beta1"
"k8s.io/client-go/tools/record"
utiltesting "k8s.io/client-go/util/testing"
cloudprovider "k8s.io/cloud-provider"
"k8s.io/kubernetes/pkg/util/mount"
. "k8s.io/kubernetes/pkg/volume"
"k8s.io/kubernetes/pkg/volume/util"
"k8s.io/kubernetes/pkg/volume/util/recyclerclient"
"k8s.io/kubernetes/pkg/volume/util/subpath"
"k8s.io/kubernetes/pkg/volume/util/volumepathhandler"
utilstrings "k8s.io/utils/strings"
)
const (
// A hook specified in storage class to indicate it's provisioning
// is expected to fail.
ExpectProvisionFailureKey = "expect-provision-failure"
// The node is marked as uncertain. The attach operation will fail and return timeout error
// for the first attach call. The following call will return sucesssfully.
UncertainAttachNode = "uncertain-attach-node"
// The node is marked as timeout. The attach operation will always fail and return timeout error
// but the operation is actually succeeded.
TimeoutAttachNode = "timeout-attach-node"
// The node is marked as multi-attach which means it is allowed to attach the volume to multiple nodes.
MultiAttachNode = "multi-attach-node"
)
// fakeVolumeHost is useful for testing volume plugins.
type fakeVolumeHost struct {
rootDir string
kubeClient clientset.Interface
pluginMgr VolumePluginMgr
cloud cloudprovider.Interface
mounter mount.Interface
exec mount.Exec
nodeLabels map[string]string
nodeName string
subpather subpath.Interface
csiDriverLister storagelisters.CSIDriverLister
}
var _ VolumeHost = &fakeVolumeHost{}
var _ AttachDetachVolumeHost = &fakeVolumeHost{}
func NewFakeVolumeHost(rootDir string, kubeClient clientset.Interface, plugins []VolumePlugin) *fakeVolumeHost {
return newFakeVolumeHost(rootDir, kubeClient, plugins, nil, nil)
}
func NewFakeVolumeHostWithCloudProvider(rootDir string, kubeClient clientset.Interface, plugins []VolumePlugin, cloud cloudprovider.Interface) *fakeVolumeHost {
return newFakeVolumeHost(rootDir, kubeClient, plugins, cloud, nil)
}
func NewFakeVolumeHostWithNodeLabels(rootDir string, kubeClient clientset.Interface, plugins []VolumePlugin, labels map[string]string) *fakeVolumeHost {
volHost := newFakeVolumeHost(rootDir, kubeClient, plugins, nil, nil)
volHost.nodeLabels = labels
return volHost
}
func NewFakeVolumeHostWithCSINodeName(rootDir string, kubeClient clientset.Interface, plugins []VolumePlugin, nodeName string, driverLister storagelisters.CSIDriverLister) *fakeVolumeHost {
volHost := newFakeVolumeHost(rootDir, kubeClient, plugins, nil, nil)
volHost.nodeName = nodeName
if driverLister != nil {
volHost.csiDriverLister = driverLister
}
return volHost
}
func newFakeVolumeHost(rootDir string, kubeClient clientset.Interface, plugins []VolumePlugin, cloud cloudprovider.Interface, pathToTypeMap map[string]mount.FileType) *fakeVolumeHost {
host := &fakeVolumeHost{rootDir: rootDir, kubeClient: kubeClient, cloud: cloud}
host.mounter = &mount.FakeMounter{
Filesystem: pathToTypeMap,
}
host.exec = mount.NewFakeExec(nil)
host.pluginMgr.InitPlugins(plugins, nil /* prober */, host)
host.subpather = &subpath.FakeSubpath{}
return host
}
func NewFakeVolumeHostWithMounterFSType(rootDir string, kubeClient clientset.Interface, plugins []VolumePlugin, pathToTypeMap map[string]mount.FileType) *fakeVolumeHost {
volHost := newFakeVolumeHost(rootDir, kubeClient, plugins, nil, pathToTypeMap)
return volHost
}
func (f *fakeVolumeHost) GetPluginDir(podUID string) string {
return path.Join(f.rootDir, "plugins", podUID)
}
func (f *fakeVolumeHost) GetVolumeDevicePluginDir(pluginName string) string {
return path.Join(f.rootDir, "plugins", pluginName, "volumeDevices")
}
func (f *fakeVolumeHost) GetPodsDir() string {
return path.Join(f.rootDir, "pods")
}
func (f *fakeVolumeHost) GetPodVolumeDir(podUID types.UID, pluginName, volumeName string) string {
return path.Join(f.rootDir, "pods", string(podUID), "volumes", pluginName, volumeName)
}
func (f *fakeVolumeHost) GetPodVolumeDeviceDir(podUID types.UID, pluginName string) string {
return path.Join(f.rootDir, "pods", string(podUID), "volumeDevices", pluginName)
}
func (f *fakeVolumeHost) GetPodPluginDir(podUID types.UID, pluginName string) string {
return path.Join(f.rootDir, "pods", string(podUID), "plugins", pluginName)
}
func (f *fakeVolumeHost) GetKubeClient() clientset.Interface {
return f.kubeClient
}
func (f *fakeVolumeHost) GetCloudProvider() cloudprovider.Interface {
return f.cloud
}
func (f *fakeVolumeHost) GetMounter(pluginName string) mount.Interface {
return f.mounter
}
func (f *fakeVolumeHost) GetSubpather() subpath.Interface {
return f.subpather
}
func (f *fakeVolumeHost) NewWrapperMounter(volName string, spec Spec, pod *v1.Pod, opts VolumeOptions) (Mounter, error) {
// The name of wrapper volume is set to "wrapped_{wrapped_volume_name}"
wrapperVolumeName := "wrapped_" + volName
if spec.Volume != nil {
spec.Volume.Name = wrapperVolumeName
}
plug, err := f.pluginMgr.FindPluginBySpec(&spec)
if err != nil {
return nil, err
}
return plug.NewMounter(&spec, pod, opts)
}
func (f *fakeVolumeHost) NewWrapperUnmounter(volName string, spec Spec, podUID types.UID) (Unmounter, error) {
// The name of wrapper volume is set to "wrapped_{wrapped_volume_name}"
wrapperVolumeName := "wrapped_" + volName
if spec.Volume != nil {
spec.Volume.Name = wrapperVolumeName
}
plug, err := f.pluginMgr.FindPluginBySpec(&spec)
if err != nil {
return nil, err
}
return plug.NewUnmounter(spec.Name(), podUID)
}
// Returns the hostname of the host kubelet is running on
func (f *fakeVolumeHost) GetHostName() string {
return "fakeHostName"
}
// Returns host IP or nil in the case of error.
func (f *fakeVolumeHost) GetHostIP() (net.IP, error) {
return nil, fmt.Errorf("GetHostIP() not implemented")
}
func (f *fakeVolumeHost) GetNodeAllocatable() (v1.ResourceList, error) {
return v1.ResourceList{}, nil
}
func (f *fakeVolumeHost) GetSecretFunc() func(namespace, name string) (*v1.Secret, error) {
return func(namespace, name string) (*v1.Secret, error) {
return f.kubeClient.CoreV1().Secrets(namespace).Get(name, metav1.GetOptions{})
}
}
func (f *fakeVolumeHost) GetExec(pluginName string) mount.Exec {
return f.exec
}
func (f *fakeVolumeHost) GetConfigMapFunc() func(namespace, name string) (*v1.ConfigMap, error) {
return func(namespace, name string) (*v1.ConfigMap, error) {
return f.kubeClient.CoreV1().ConfigMaps(namespace).Get(name, metav1.GetOptions{})
}
}
func (f *fakeVolumeHost) GetServiceAccountTokenFunc() func(string, string, *authenticationv1.TokenRequest) (*authenticationv1.TokenRequest, error) {
return func(namespace, name string, tr *authenticationv1.TokenRequest) (*authenticationv1.TokenRequest, error) {
return f.kubeClient.CoreV1().ServiceAccounts(namespace).CreateToken(name, tr)
}
}
func (f *fakeVolumeHost) DeleteServiceAccountTokenFunc() func(types.UID) {
return func(types.UID) {}
}
func (f *fakeVolumeHost) GetNodeLabels() (map[string]string, error) {
if f.nodeLabels == nil {
f.nodeLabels = map[string]string{"test-label": "test-value"}
}
return f.nodeLabels, nil
}
func (f *fakeVolumeHost) GetNodeName() types.NodeName {
return types.NodeName(f.nodeName)
}
func (f *fakeVolumeHost) GetEventRecorder() record.EventRecorder {
return nil
}
func ProbeVolumePlugins(config VolumeConfig) []VolumePlugin {
if _, ok := config.OtherAttributes["fake-property"]; ok {
return []VolumePlugin{
&FakeVolumePlugin{
PluginName: "fake-plugin",
Host: nil,
// SomeFakeProperty: config.OtherAttributes["fake-property"] -- string, may require parsing by plugin
},
}
}
return []VolumePlugin{&FakeVolumePlugin{PluginName: "fake-plugin"}}
}
// FakeVolumePlugin is useful for testing. It tries to be a fully compliant
// plugin, but all it does is make empty directories.
// Use as:
// volume.RegisterPlugin(&FakePlugin{"fake-name"})
type FakeVolumePlugin struct {
sync.RWMutex
PluginName string
Host VolumeHost
Config VolumeConfig
LastProvisionerOptions VolumeOptions
NewAttacherCallCount int
NewDetacherCallCount int
VolumeLimits map[string]int64
VolumeLimitsError error
LimitKey string
ProvisionDelaySeconds int
// Add callbacks as needed
WaitForAttachHook func(spec *Spec, devicePath string, pod *v1.Pod, spectimeout time.Duration) (string, error)
UnmountDeviceHook func(globalMountPath string) error
Mounters []*FakeVolume
Unmounters []*FakeVolume
Attachers []*FakeVolume
Detachers []*FakeVolume
BlockVolumeMappers []*FakeVolume
BlockVolumeUnmappers []*FakeVolume
}
var _ VolumePlugin = &FakeVolumePlugin{}
var _ BlockVolumePlugin = &FakeVolumePlugin{}
var _ RecyclableVolumePlugin = &FakeVolumePlugin{}
var _ DeletableVolumePlugin = &FakeVolumePlugin{}
var _ ProvisionableVolumePlugin = &FakeVolumePlugin{}
var _ AttachableVolumePlugin = &FakeVolumePlugin{}
var _ VolumePluginWithAttachLimits = &FakeVolumePlugin{}
var _ DeviceMountableVolumePlugin = &FakeVolumePlugin{}
var _ NodeExpandableVolumePlugin = &FakeVolumePlugin{}
func (plugin *FakeVolumePlugin) getFakeVolume(list *[]*FakeVolume) *FakeVolume {
volumeList := *list
if list != nil && len(volumeList) > 0 {
volume := volumeList[0]
volume.Lock()
defer volume.Unlock()
volume.WaitForAttachHook = plugin.WaitForAttachHook
volume.UnmountDeviceHook = plugin.UnmountDeviceHook
return volume
}
volume := &FakeVolume{
WaitForAttachHook: plugin.WaitForAttachHook,
UnmountDeviceHook: plugin.UnmountDeviceHook,
}
volume.VolumesAttached = make(map[string]types.NodeName)
*list = append(*list, volume)
return volume
}
func (plugin *FakeVolumePlugin) Init(host VolumeHost) error {
plugin.Lock()
defer plugin.Unlock()
plugin.Host = host
return nil
}
func (plugin *FakeVolumePlugin) GetPluginName() string {
plugin.RLock()
defer plugin.RUnlock()
return plugin.PluginName
}
func (plugin *FakeVolumePlugin) GetVolumeName(spec *Spec) (string, error) {
var volumeName string
if spec.Volume != nil && spec.Volume.GCEPersistentDisk != nil {
volumeName = spec.Volume.GCEPersistentDisk.PDName
} else if spec.PersistentVolume != nil &&
spec.PersistentVolume.Spec.GCEPersistentDisk != nil {
volumeName = spec.PersistentVolume.Spec.GCEPersistentDisk.PDName
}
if volumeName == "" {
volumeName = spec.Name()
}
return volumeName, nil
}
func (plugin *FakeVolumePlugin) CanSupport(spec *Spec) bool {
// TODO: maybe pattern-match on spec.Name() to decide?
return true
}
func (plugin *FakeVolumePlugin) IsMigratedToCSI() bool {
return false
}
func (plugin *FakeVolumePlugin) RequiresRemount() bool {
return false
}
func (plugin *FakeVolumePlugin) SupportsMountOption() bool {
return true
}
func (plugin *FakeVolumePlugin) SupportsBulkVolumeVerification() bool {
return false
}
func (plugin *FakeVolumePlugin) NewMounter(spec *Spec, pod *v1.Pod, opts VolumeOptions) (Mounter, error) {
plugin.Lock()
defer plugin.Unlock()
volume := plugin.getFakeVolume(&plugin.Mounters)
volume.Lock()
defer volume.Unlock()
volume.PodUID = pod.UID
volume.VolName = spec.Name()
volume.Plugin = plugin
volume.MetricsNil = MetricsNil{}
return volume, nil
}
func (plugin *FakeVolumePlugin) GetMounters() (Mounters []*FakeVolume) {
plugin.RLock()
defer plugin.RUnlock()
return plugin.Mounters
}
func (plugin *FakeVolumePlugin) NewUnmounter(volName string, podUID types.UID) (Unmounter, error) {
plugin.Lock()
defer plugin.Unlock()
volume := plugin.getFakeVolume(&plugin.Unmounters)
volume.Lock()
defer volume.Unlock()
volume.PodUID = podUID
volume.VolName = volName
volume.Plugin = plugin
volume.MetricsNil = MetricsNil{}
return volume, nil
}
func (plugin *FakeVolumePlugin) GetUnmounters() (Unmounters []*FakeVolume) {
plugin.RLock()
defer plugin.RUnlock()
return plugin.Unmounters
}
// Block volume support
func (plugin *FakeVolumePlugin) NewBlockVolumeMapper(spec *Spec, pod *v1.Pod, opts VolumeOptions) (BlockVolumeMapper, error) {
plugin.Lock()
defer plugin.Unlock()
volume := plugin.getFakeVolume(&plugin.BlockVolumeMappers)
volume.Lock()
defer volume.Unlock()
if pod != nil {
volume.PodUID = pod.UID
}
volume.VolName = spec.Name()
volume.Plugin = plugin
return volume, nil
}
// Block volume support
func (plugin *FakeVolumePlugin) GetBlockVolumeMapper() (BlockVolumeMappers []*FakeVolume) {
plugin.RLock()
defer plugin.RUnlock()
return plugin.BlockVolumeMappers
}
// Block volume support
func (plugin *FakeVolumePlugin) NewBlockVolumeUnmapper(volName string, podUID types.UID) (BlockVolumeUnmapper, error) {
plugin.Lock()
defer plugin.Unlock()
volume := plugin.getFakeVolume(&plugin.BlockVolumeUnmappers)
volume.Lock()
defer volume.Unlock()
volume.PodUID = podUID
volume.VolName = volName
volume.Plugin = plugin
return volume, nil
}
// Block volume support
func (plugin *FakeVolumePlugin) GetBlockVolumeUnmapper() (BlockVolumeUnmappers []*FakeVolume) {
plugin.RLock()
defer plugin.RUnlock()
return plugin.BlockVolumeUnmappers
}
func (plugin *FakeVolumePlugin) NewAttacher() (Attacher, error) {
plugin.Lock()
defer plugin.Unlock()
plugin.NewAttacherCallCount = plugin.NewAttacherCallCount + 1
return plugin.getFakeVolume(&plugin.Attachers), nil
}
func (plugin *FakeVolumePlugin) NewDeviceMounter() (DeviceMounter, error) {
return plugin.NewAttacher()
}
func (plugin *FakeVolumePlugin) GetAttachers() (Attachers []*FakeVolume) {
plugin.RLock()
defer plugin.RUnlock()
return plugin.Attachers
}
func (plugin *FakeVolumePlugin) GetNewAttacherCallCount() int {
plugin.RLock()
defer plugin.RUnlock()
return plugin.NewAttacherCallCount
}
func (plugin *FakeVolumePlugin) NewDetacher() (Detacher, error) {
plugin.Lock()
defer plugin.Unlock()
plugin.NewDetacherCallCount = plugin.NewDetacherCallCount + 1
detacher := plugin.getFakeVolume(&plugin.Detachers)
attacherList := plugin.Attachers
if attacherList != nil && len(attacherList) > 0 {
detacherList := plugin.Detachers
if detacherList != nil && len(detacherList) > 0 {
detacherList[0].VolumesAttached = attacherList[0].VolumesAttached
}
}
return detacher, nil
}
func (plugin *FakeVolumePlugin) NewDeviceUnmounter() (DeviceUnmounter, error) {
return plugin.NewDetacher()
}
func (plugin *FakeVolumePlugin) GetDetachers() (Detachers []*FakeVolume) {
plugin.RLock()
defer plugin.RUnlock()
return plugin.Detachers
}
func (plugin *FakeVolumePlugin) GetNewDetacherCallCount() int {
plugin.RLock()
defer plugin.RUnlock()
return plugin.NewDetacherCallCount
}
func (plugin *FakeVolumePlugin) CanAttach(spec *Spec) bool {
return true
}
func (plugin *FakeVolumePlugin) Recycle(pvName string, spec *Spec, eventRecorder recyclerclient.RecycleEventRecorder) error {
return nil
}
func (plugin *FakeVolumePlugin) NewDeleter(spec *Spec) (Deleter, error) {
return &FakeDeleter{"/attributesTransferredFromSpec", MetricsNil{}}, nil
}
func (plugin *FakeVolumePlugin) NewProvisioner(options VolumeOptions) (Provisioner, error) {
plugin.Lock()
defer plugin.Unlock()
plugin.LastProvisionerOptions = options
return &FakeProvisioner{options, plugin.Host, plugin.ProvisionDelaySeconds}, nil
}
func (plugin *FakeVolumePlugin) GetAccessModes() []v1.PersistentVolumeAccessMode {
return []v1.PersistentVolumeAccessMode{}
}
func (plugin *FakeVolumePlugin) ConstructVolumeSpec(volumeName, mountPath string) (*Spec, error) {
return &Spec{
Volume: &v1.Volume{
Name: volumeName,
},
}, nil
}
// Block volume support
func (plugin *FakeVolumePlugin) ConstructBlockVolumeSpec(podUID types.UID, volumeName, mountPath string) (*Spec, error) {
return &Spec{
Volume: &v1.Volume{
Name: volumeName,
},
}, nil
}
func (plugin *FakeVolumePlugin) GetDeviceMountRefs(deviceMountPath string) ([]string, error) {
return []string{}, nil
}
// Expandable volume support
func (plugin *FakeVolumePlugin) ExpandVolumeDevice(spec *Spec, newSize resource.Quantity, oldSize resource.Quantity) (resource.Quantity, error) {
return resource.Quantity{}, nil
}
func (plugin *FakeVolumePlugin) RequiresFSResize() bool {
return true
}
func (plugin *FakeVolumePlugin) NodeExpand(resizeOptions NodeResizeOptions) (bool, error) {
return true, nil
}
func (plugin *FakeVolumePlugin) GetVolumeLimits() (map[string]int64, error) {
return plugin.VolumeLimits, plugin.VolumeLimitsError
}
func (plugin *FakeVolumePlugin) VolumeLimitKey(spec *Spec) string {
return plugin.LimitKey
}
// FakeBasicVolumePlugin implements a basic volume plugin. It wrappers on
// FakeVolumePlugin but implements VolumePlugin interface only.
// It is useful to test logic involving plugin interfaces.
type FakeBasicVolumePlugin struct {
Plugin FakeVolumePlugin
}
func (f *FakeBasicVolumePlugin) GetPluginName() string {
return f.Plugin.GetPluginName()
}
func (f *FakeBasicVolumePlugin) GetVolumeName(spec *Spec) (string, error) {
return f.Plugin.GetVolumeName(spec)
}
// CanSupport tests whether the plugin supports a given volume specification by
// testing volume spec name begins with plugin name or not.
// This is useful to choose plugin by volume in testing.
func (f *FakeBasicVolumePlugin) CanSupport(spec *Spec) bool {
return strings.HasPrefix(spec.Name(), f.GetPluginName())
}
func (plugin *FakeBasicVolumePlugin) IsMigratedToCSI() bool {
return false
}
func (f *FakeBasicVolumePlugin) ConstructVolumeSpec(ame, mountPath string) (*Spec, error) {
return f.Plugin.ConstructVolumeSpec(ame, mountPath)
}
func (f *FakeBasicVolumePlugin) Init(ost VolumeHost) error {
return f.Plugin.Init(ost)
}
func (f *FakeBasicVolumePlugin) NewMounter(spec *Spec, pod *v1.Pod, opts VolumeOptions) (Mounter, error) {
return f.Plugin.NewMounter(spec, pod, opts)
}
func (f *FakeBasicVolumePlugin) NewUnmounter(volName string, podUID types.UID) (Unmounter, error) {
return f.Plugin.NewUnmounter(volName, podUID)
}
func (f *FakeBasicVolumePlugin) RequiresRemount() bool {
return f.Plugin.RequiresRemount()
}
func (f *FakeBasicVolumePlugin) SupportsBulkVolumeVerification() bool {
return f.Plugin.SupportsBulkVolumeVerification()
}
func (f *FakeBasicVolumePlugin) SupportsMountOption() bool {
return f.Plugin.SupportsMountOption()
}
var _ VolumePlugin = &FakeBasicVolumePlugin{}
// FakeDeviceMountableVolumePlugin implements an device mountable plugin based on FakeBasicVolumePlugin.
type FakeDeviceMountableVolumePlugin struct {
FakeBasicVolumePlugin
}
func (f *FakeDeviceMountableVolumePlugin) NewDeviceMounter() (DeviceMounter, error) {
return f.Plugin.NewDeviceMounter()
}
func (f *FakeDeviceMountableVolumePlugin) NewDeviceUnmounter() (DeviceUnmounter, error) {
return f.Plugin.NewDeviceUnmounter()
}
func (f *FakeDeviceMountableVolumePlugin) GetDeviceMountRefs(deviceMountPath string) ([]string, error) {
return f.Plugin.GetDeviceMountRefs(deviceMountPath)
}
var _ VolumePlugin = &FakeDeviceMountableVolumePlugin{}
var _ DeviceMountableVolumePlugin = &FakeDeviceMountableVolumePlugin{}
// FakeAttachableVolumePlugin implements an attachable plugin based on FakeDeviceMountableVolumePlugin.
type FakeAttachableVolumePlugin struct {
FakeDeviceMountableVolumePlugin
}
func (f *FakeAttachableVolumePlugin) NewAttacher() (Attacher, error) {
return f.Plugin.NewAttacher()
}
func (f *FakeAttachableVolumePlugin) NewDetacher() (Detacher, error) {
return f.Plugin.NewDetacher()
}
func (f *FakeAttachableVolumePlugin) CanAttach(spec *Spec) bool {
return true
}
var _ VolumePlugin = &FakeAttachableVolumePlugin{}
var _ AttachableVolumePlugin = &FakeAttachableVolumePlugin{}
type FakeFileVolumePlugin struct {
}
func (plugin *FakeFileVolumePlugin) Init(host VolumeHost) error {
return nil
}
func (plugin *FakeFileVolumePlugin) GetPluginName() string {
return "fake-file-plugin"
}
func (plugin *FakeFileVolumePlugin) GetVolumeName(spec *Spec) (string, error) {
return "", nil
}
func (plugin *FakeFileVolumePlugin) CanSupport(spec *Spec) bool {
return true
}
func (plugin *FakeFileVolumePlugin) IsMigratedToCSI() bool {
return false
}
func (plugin *FakeFileVolumePlugin) RequiresRemount() bool {
return false
}
func (plugin *FakeFileVolumePlugin) SupportsMountOption() bool {
return false
}
func (plugin *FakeFileVolumePlugin) SupportsBulkVolumeVerification() bool {
return false
}
func (plugin *FakeFileVolumePlugin) NewMounter(spec *Spec, podRef *v1.Pod, opts VolumeOptions) (Mounter, error) {
return nil, nil
}
func (plugin *FakeFileVolumePlugin) NewUnmounter(name string, podUID types.UID) (Unmounter, error) {
return nil, nil
}
func (plugin *FakeFileVolumePlugin) ConstructVolumeSpec(volumeName, mountPath string) (*Spec, error) {
return nil, nil
}
func NewFakeFileVolumePlugin() []VolumePlugin {
return []VolumePlugin{&FakeFileVolumePlugin{}}
}
type FakeVolume struct {
sync.RWMutex
PodUID types.UID
VolName string
Plugin *FakeVolumePlugin
MetricsNil
VolumesAttached map[string]types.NodeName
// Add callbacks as needed
WaitForAttachHook func(spec *Spec, devicePath string, pod *v1.Pod, spectimeout time.Duration) (string, error)
UnmountDeviceHook func(globalMountPath string) error
SetUpCallCount int
TearDownCallCount int
AttachCallCount int
DetachCallCount int
WaitForAttachCallCount int
MountDeviceCallCount int
UnmountDeviceCallCount int
GetDeviceMountPathCallCount int
SetUpDeviceCallCount int
TearDownDeviceCallCount int
MapDeviceCallCount int
GlobalMapPathCallCount int
PodDeviceMapPathCallCount int
}
func getUniqueVolumeName(spec *Spec) (string, error) {
var volumeName string
if spec.Volume != nil && spec.Volume.GCEPersistentDisk != nil {
volumeName = spec.Volume.GCEPersistentDisk.PDName
} else if spec.PersistentVolume != nil &&
spec.PersistentVolume.Spec.GCEPersistentDisk != nil {
volumeName = spec.PersistentVolume.Spec.GCEPersistentDisk.PDName
}
if volumeName == "" {
volumeName = spec.Name()
}
return volumeName, nil
}
func (_ *FakeVolume) GetAttributes() Attributes {
return Attributes{
ReadOnly: false,
Managed: true,
SupportsSELinux: true,
}
}
func (fv *FakeVolume) CanMount() error {
return nil
}
func (fv *FakeVolume) SetUp(fsGroup *int64) error {
fv.Lock()
defer fv.Unlock()
fv.SetUpCallCount++
return fv.SetUpAt(fv.getPath(), fsGroup)
}
func (fv *FakeVolume) GetSetUpCallCount() int {
fv.RLock()
defer fv.RUnlock()
return fv.SetUpCallCount
}
func (fv *FakeVolume) SetUpAt(dir string, fsGroup *int64) error {
return os.MkdirAll(dir, 0750)
}
func (fv *FakeVolume) GetPath() string {
fv.RLock()
defer fv.RUnlock()
return fv.getPath()
}
func (fv *FakeVolume) getPath() string {
return path.Join(fv.Plugin.Host.GetPodVolumeDir(fv.PodUID, utilstrings.EscapeQualifiedName(fv.Plugin.PluginName), fv.VolName))
}
func (fv *FakeVolume) TearDown() error {
fv.Lock()
defer fv.Unlock()
fv.TearDownCallCount++
return fv.TearDownAt(fv.getPath())
}
func (fv *FakeVolume) GetTearDownCallCount() int {
fv.RLock()
defer fv.RUnlock()
return fv.TearDownCallCount
}
func (fv *FakeVolume) TearDownAt(dir string) error {
return os.RemoveAll(dir)
}
// Block volume support
func (fv *FakeVolume) SetUpDevice() (string, error) {
fv.Lock()
defer fv.Unlock()
fv.SetUpDeviceCallCount++
return "", nil
}
// Block volume support
func (fv *FakeVolume) GetSetUpDeviceCallCount() int {
fv.RLock()
defer fv.RUnlock()
return fv.SetUpDeviceCallCount
}
// Block volume support
func (fv *FakeVolume) GetGlobalMapPath(spec *Spec) (string, error) {
fv.RLock()
defer fv.RUnlock()
fv.GlobalMapPathCallCount++
return fv.getGlobalMapPath()
}
// Block volume support
func (fv *FakeVolume) getGlobalMapPath() (string, error) {
return path.Join(fv.Plugin.Host.GetVolumeDevicePluginDir(utilstrings.EscapeQualifiedName(fv.Plugin.PluginName)), "pluginDependentPath"), nil
}
// Block volume support
func (fv *FakeVolume) GetGlobalMapPathCallCount() int {
fv.RLock()
defer fv.RUnlock()
return fv.GlobalMapPathCallCount
}
// Block volume support
func (fv *FakeVolume) GetPodDeviceMapPath() (string, string) {
fv.RLock()
defer fv.RUnlock()
fv.PodDeviceMapPathCallCount++
return fv.getPodDeviceMapPath()
}
// Block volume support
func (fv *FakeVolume) getPodDeviceMapPath() (string, string) {
return path.Join(fv.Plugin.Host.GetPodVolumeDeviceDir(fv.PodUID, utilstrings.EscapeQualifiedName(fv.Plugin.PluginName))), fv.VolName
}
// Block volume support
func (fv *FakeVolume) GetPodDeviceMapPathCallCount() int {
fv.RLock()
defer fv.RUnlock()
return fv.PodDeviceMapPathCallCount
}
// Block volume support
func (fv *FakeVolume) TearDownDevice(mapPath string, devicePath string) error {
fv.Lock()
defer fv.Unlock()
fv.TearDownDeviceCallCount++
return nil
}
// Block volume support
func (fv *FakeVolume) GetTearDownDeviceCallCount() int {
fv.RLock()
defer fv.RUnlock()
return fv.TearDownDeviceCallCount
}
// Block volume support
func (fv *FakeVolume) MapDevice(devicePath, globalMapPath, volumeMapPath, volumeMapName string, pod types.UID) error {
fv.Lock()
defer fv.Unlock()
fv.MapDeviceCallCount++
return nil
}
// Block volume support
func (fv *FakeVolume) GetMapDeviceCallCount() int {
fv.RLock()
defer fv.RUnlock()
return fv.MapDeviceCallCount
}
func (fv *FakeVolume) Attach(spec *Spec, nodeName types.NodeName) (string, error) {
fv.Lock()
defer fv.Unlock()
fv.AttachCallCount++
volumeName, err := getUniqueVolumeName(spec)
if err != nil {
return "", err
}
volumeNode, exist := fv.VolumesAttached[volumeName]
if exist {
if nodeName == UncertainAttachNode {
return "/dev/vdb-test", nil
}
if volumeNode == nodeName || volumeNode == MultiAttachNode || nodeName == MultiAttachNode {
return "/dev/vdb-test", nil
}
return "", fmt.Errorf("volume %q trying to attach to node %q is already attached to node %q", volumeName, nodeName, volumeNode)
}
fv.VolumesAttached[volumeName] = nodeName
if nodeName == UncertainAttachNode || nodeName == TimeoutAttachNode {
return "", fmt.Errorf("Timed out to attach volume %q to node %q", volumeName, nodeName)
}
return "/dev/vdb-test", nil
}
func (fv *FakeVolume) GetAttachCallCount() int {
fv.RLock()
defer fv.RUnlock()
return fv.AttachCallCount
}
func (fv *FakeVolume) WaitForAttach(spec *Spec, devicePath string, pod *v1.Pod, spectimeout time.Duration) (string, error) {
fv.Lock()
defer fv.Unlock()
fv.WaitForAttachCallCount++
if fv.WaitForAttachHook != nil {
return fv.WaitForAttachHook(spec, devicePath, pod, spectimeout)
}
return "/dev/sdb", nil
}
func (fv *FakeVolume) GetWaitForAttachCallCount() int {
fv.RLock()
defer fv.RUnlock()
return fv.WaitForAttachCallCount
}
func (fv *FakeVolume) GetDeviceMountPath(spec *Spec) (string, error) {
fv.Lock()
defer fv.Unlock()
fv.GetDeviceMountPathCallCount++
return "", nil
}
func (fv *FakeVolume) MountDevice(spec *Spec, devicePath string, deviceMountPath string) error {
fv.Lock()
defer fv.Unlock()
fv.MountDeviceCallCount++
return nil
}
func (fv *FakeVolume) GetMountDeviceCallCount() int {
fv.RLock()
defer fv.RUnlock()
return fv.MountDeviceCallCount
}
func (fv *FakeVolume) Detach(volumeName string, nodeName types.NodeName) error {
fv.Lock()
defer fv.Unlock()
fv.DetachCallCount++
if _, exist := fv.VolumesAttached[volumeName]; !exist {
return fmt.Errorf("Trying to detach volume %q that is not attached to the node %q", volumeName, nodeName)
}
delete(fv.VolumesAttached, volumeName)
return nil
}
func (fv *FakeVolume) VolumesAreAttached(spec []*Spec, nodeName types.NodeName) (map[*Spec]bool, error) {
fv.Lock()
defer fv.Unlock()
return nil, nil
}
func (fv *FakeVolume) GetDetachCallCount() int {
fv.RLock()
defer fv.RUnlock()
return fv.DetachCallCount
}
func (fv *FakeVolume) UnmountDevice(globalMountPath string) error {
fv.Lock()
defer fv.Unlock()
fv.UnmountDeviceCallCount++
if fv.UnmountDeviceHook != nil {
return fv.UnmountDeviceHook(globalMountPath)
}
return nil
}
type FakeDeleter struct {
path string
MetricsNil
}
func (fd *FakeDeleter) Delete() error {
// nil is success, else error
return nil
}
func (fd *FakeDeleter) GetPath() string {