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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"
"k8s.io/client-go/tools/record"
utiltesting "k8s.io/client-go/util/testing"
"k8s.io/kubernetes/pkg/cloudprovider"
"k8s.io/kubernetes/pkg/util/io"
"k8s.io/kubernetes/pkg/util/mount"
utilstrings "k8s.io/kubernetes/pkg/util/strings"
. "k8s.io/kubernetes/pkg/volume"
"k8s.io/kubernetes/pkg/volume/util"
"k8s.io/kubernetes/pkg/volume/util/recyclerclient"
"k8s.io/kubernetes/pkg/volume/util/volumepathhandler"
)
// 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
writer io.Writer
nodeLabels map[string]string
nodeName string
}
func NewFakeVolumeHost(rootDir string, kubeClient clientset.Interface, plugins []VolumePlugin) *fakeVolumeHost {
return newFakeVolumeHost(rootDir, kubeClient, plugins, nil)
}
func NewFakeVolumeHostWithCloudProvider(rootDir string, kubeClient clientset.Interface, plugins []VolumePlugin, cloud cloudprovider.Interface) *fakeVolumeHost {
return newFakeVolumeHost(rootDir, kubeClient, plugins, cloud)
}
func NewFakeVolumeHostWithNodeLabels(rootDir string, kubeClient clientset.Interface, plugins []VolumePlugin, labels map[string]string) *fakeVolumeHost {
volHost := newFakeVolumeHost(rootDir, kubeClient, plugins, nil)
volHost.nodeLabels = labels
return volHost
}
func NewFakeVolumeHostWithNodeName(rootDir string, kubeClient clientset.Interface, plugins []VolumePlugin, nodeName string) *fakeVolumeHost {
volHost := newFakeVolumeHost(rootDir, kubeClient, plugins, nil)
volHost.nodeName = nodeName
return volHost
}
func newFakeVolumeHost(rootDir string, kubeClient clientset.Interface, plugins []VolumePlugin, cloud cloudprovider.Interface) *fakeVolumeHost {
host := &fakeVolumeHost{rootDir: rootDir, kubeClient: kubeClient, cloud: cloud}
host.mounter = &mount.FakeMounter{}
host.writer = &io.StdWriter{}
host.exec = mount.NewFakeExec(nil)
host.pluginMgr.InitPlugins(plugins, nil /* prober */, host)
return host
}
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) GetWriter() io.Writer {
return f.writer
}
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) 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
// 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{}
func (plugin *FakeVolumePlugin) getFakeVolume(list *[]*FakeVolume) *FakeVolume {
volume := &FakeVolume{
WaitForAttachHook: plugin.WaitForAttachHook,
UnmountDeviceHook: plugin.UnmountDeviceHook,
}
*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) 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.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.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)
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.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) 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
return plugin.getFakeVolume(&plugin.Detachers), nil
}
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) 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}, 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
}
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) 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
// 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 (_ *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.EscapeQualifiedNameForDisk(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.EscapeQualifiedNameForDisk(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.EscapeQualifiedNameForDisk(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++
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++
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 {
return fd.path
}
type FakeProvisioner struct {
Options VolumeOptions
Host VolumeHost
}
func (fc *FakeProvisioner) Provision(selectedNode *v1.Node, allowedTopologies []v1.TopologySelectorTerm) (*v1.PersistentVolume, error) {
fullpath := fmt.Sprintf("/tmp/hostpath_pv/%s", uuid.NewUUID())
pv := &v1.PersistentVolume{
ObjectMeta: metav1.ObjectMeta{
Name: fc.Options.PVName,
Annotations: map[string]string{
util.VolumeDynamicallyCreatedByKey: "fakeplugin-provisioner",
},
},
Spec: v1.PersistentVolumeSpec{
PersistentVolumeReclaimPolicy: fc.Options.PersistentVolumeReclaimPolicy,
AccessModes: fc.Options.PVC.Spec.AccessModes,
Capacity: v1.ResourceList{
v1.ResourceName(v1.ResourceStorage): fc.Options.PVC.Spec.Resources.Requests[v1.ResourceName(v1.ResourceStorage)],
},
PersistentVolumeSource: v1.PersistentVolumeSource{
HostPath: &v1.HostPathVolumeSource{
Path: fullpath,
},
},
},
}
return pv, nil
}
var _ volumepathhandler.BlockVolumePathHandler = &FakeVolumePathHandler{}
//NewDeviceHandler Create a new IoHandler implementation
func NewBlockVolumePathHandler() volumepathhandler.BlockVolumePathHandler {
return &FakeVolumePathHandler{}
}
type FakeVolumePathHandler struct {
sync.RWMutex
}
func (fv *FakeVolumePathHandler) MapDevice(devicePath string, mapDir string, linkName string) error {
// nil is success, else error
return nil
}
func (fv *FakeVolumePathHandler) UnmapDevice(mapDir string, linkName string) error {
// nil is success, else error
return nil
}
func (fv *FakeVolumePathHandler) RemoveMapPath(mapPath string) error {
// nil is success, else error
return nil
}
func (fv *FakeVolumePathHandler) IsSymlinkExist(mapPath string) (bool, error) {
// nil is success, else error
return true, nil
}
func (fv *FakeVolumePathHandler) GetDeviceSymlinkRefs(devPath string, mapPath string) ([]string, error) {
// nil is success, else error
return []string{}, nil
}
func (fv *FakeVolumePathHandler) FindGlobalMapPathUUIDFromPod(pluginDir, mapPath string, podUID types.UID) (string, error) {
// nil is success, else error
return "", nil
}
func (fv *FakeVolumePathHandler) AttachFileDevice(path string) (string, error) {
// nil is success, else error
return "", nil
}
func (fv *FakeVolumePathHandler) GetLoopDevice(path string) (string, error) {
// nil is success, else error
return "/dev/loop1", nil
}
func (fv *FakeVolumePathHandler) RemoveLoopDevice(device string) error {
// nil is success, else error
return nil
}
// FindEmptyDirectoryUsageOnTmpfs finds the expected usage of an empty directory existing on
// a tmpfs filesystem on this system.
func FindEmptyDirectoryUsageOnTmpfs() (*resource.Quantity, error) {
tmpDir, err := utiltesting.MkTmpdir("metrics_du_test")
if err != nil {
return nil, err
}
defer os.RemoveAll(tmpDir)
out, err := exec.Command("nice", "-n", "19", "du", "-s", "-B", "1", tmpDir).CombinedOutput()
if err != nil {
return nil, fmt.Errorf("failed command 'du' on %s with error %v", tmpDir, err)
}
used, err := resource.ParseQuantity(strings.Fields(string(out))[0])
if err != nil {
return nil, fmt.Errorf("failed to parse 'du' output %s due to error %v", out, err)
}
used.Format = resource.BinarySI
return &used, nil
}
// VerifyAttachCallCount ensures that at least one of the Attachers for this
// plugin has the expectedAttachCallCount number of calls. Otherwise it returns
// an error.
func VerifyAttachCallCount(
expectedAttachCallCount int,
fakeVolumePlugin *FakeVolumePlugin) error {
for _, attacher := range fakeVolumePlugin.GetAttachers() {
actualCallCount := attacher.GetAttachCallCount()
if actualCallCount == expectedAttachCallCount {
return nil
}
}
return fmt.Errorf(
"No attachers have expected AttachCallCount. Expected: <%v>.",
expectedAttachCallCount)
}
// VerifyZeroAttachCalls ensures that all of the Attachers for this plugin have
// a zero AttachCallCount. Otherwise it returns an error.
func VerifyZeroAttachCalls(fakeVolumePlugin *FakeVolumePlugin) error {
for _, attacher := range fakeVolumePlugin.GetAttachers() {
actualCallCount := attacher.GetAttachCallCount()
if actualCallCount != 0 {
return fmt.Errorf(
"At least one attacher has non-zero AttachCallCount: <%v>.",
actualCallCount)
}
}
return nil
}
// VerifyWaitForAttachCallCount ensures that at least one of the Mounters for
// this plugin has the expectedWaitForAttachCallCount number of calls. Otherwise
// it returns an error.
func VerifyWaitForAttachCallCount(
expectedWaitForAttachCallCount int,
fakeVolumePlugin *FakeVolumePlugin) error {
for _, attacher := range fakeVolumePlugin.GetAttachers() {
actualCallCount := attacher.GetWaitForAttachCallCount()
if actualCallCount == expectedWaitForAttachCallCount {
return nil
}
}
return fmt.Errorf(
"No Attachers have expected WaitForAttachCallCount. Expected: <%v>.",
expectedWaitForAttachCallCount)
}
// VerifyZeroWaitForAttachCallCount ensures that all Attachers for this plugin
// have a zero WaitForAttachCallCount. Otherwise it returns an error.
func VerifyZeroWaitForAttachCallCount(fakeVolumePlugin *FakeVolumePlugin) error {
for _, attacher := range fakeVolumePlugin.GetAttachers() {
actualCallCount := attacher.GetWaitForAttachCallCount()
if actualCallCount != 0 {
return fmt.Errorf(
"At least one attacher has non-zero WaitForAttachCallCount: <%v>.",
actualCallCount)
}
}
return nil
}
// VerifyMountDeviceCallCount ensures that at least one of the Mounters for
// this plugin has the expectedMountDeviceCallCount number of calls. Otherwise
// it returns an error.
func VerifyMountDeviceCallCount(
expectedMountDeviceCallCount int,
fakeVolumePlugin *FakeVolumePlugin) error {
for _, attacher := range fakeVolumePlugin.GetAttachers() {
actualCallCount := attacher.GetMountDeviceCallCount()
if actualCallCount == expectedMountDeviceCallCount {
return nil
}
}
return fmt.Errorf(
"No Attachers have expected MountDeviceCallCount. Expected: <%v>.",
expectedMountDeviceCallCount)
}
// VerifyZeroMountDeviceCallCount ensures that all Attachers for this plugin
// have a zero MountDeviceCallCount. Otherwise it returns an error.
func VerifyZeroMountDeviceCallCount(fakeVolumePlugin *FakeVolumePlugin) error {
for _, attacher := range fakeVolumePlugin.GetAttachers() {
actualCallCount := attacher.GetMountDeviceCallCount()
if actualCallCount != 0 {
return fmt.Errorf(
"At least one attacher has non-zero MountDeviceCallCount: <%v>.",
actualCallCount)
}
}
return nil
}
// VerifySetUpCallCount ensures that at least one of the Mounters for this
// plugin has the expectedSetUpCallCount number of calls. Otherwise it returns
// an error.
func VerifySetUpCallCount(
expectedSetUpCallCount int,
fakeVolumePlugin *FakeVolumePlugin) error {
for _, mounter := range fakeVolumePlugin.GetMounters() {
actualCallCount := mounter.GetSetUpCallCount()
if actualCallCount >= expectedSetUpCallCount {
return nil
}
}
return fmt.Errorf(
"No Mounters have expected SetUpCallCount. Expected: <%v>.",
expectedSetUpCallCount)
}
// VerifyZeroSetUpCallCount ensures that all Mounters for this plugin have a
// zero SetUpCallCount. Otherwise it returns an error.
func VerifyZeroSetUpCallCount(fakeVolumePlugin *FakeVolumePlugin) error {
for _, mounter := range fakeVolumePlugin.GetMounters() {
actualCallCount := mounter.GetSetUpCallCount()