Move fakeVolumeHost logic into a separate file

This commit is contained in:
Chris Henzie 2020-12-15 14:51:19 -08:00
parent 7da7d2084c
commit 53cae84aea
3 changed files with 293 additions and 259 deletions

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@ -10,6 +10,7 @@ go_library(
srcs = [
"mock_volume.go",
"testing.go",
"volume_host.go",
],
importpath = "k8s.io/kubernetes/pkg/volume/testing",
deps = [

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@ -17,9 +17,7 @@ limitations under the License.
package testing
import (
"context"
"fmt"
"net"
"os"
"path/filepath"
"strings"
@ -28,32 +26,20 @@ import (
"time"
"k8s.io/apimachinery/pkg/util/sets"
"k8s.io/mount-utils"
"k8s.io/utils/exec"
testingexec "k8s.io/utils/exec/testing"
utilstrings "k8s.io/utils/strings"
authenticationv1 "k8s.io/api/authentication/v1"
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"
"k8s.io/apimachinery/pkg/util/wait"
"k8s.io/client-go/informers"
clientset "k8s.io/client-go/kubernetes"
storagelistersv1 "k8s.io/client-go/listers/storage/v1"
"k8s.io/client-go/tools/cache"
"k8s.io/client-go/tools/record"
utiltesting "k8s.io/client-go/util/testing"
cloudprovider "k8s.io/cloud-provider"
proxyutil "k8s.io/kubernetes/pkg/proxy/util"
"k8s.io/kubernetes/pkg/volume"
. "k8s.io/kubernetes/pkg/volume"
"k8s.io/kubernetes/pkg/volume/util"
"k8s.io/kubernetes/pkg/volume/util/hostutil"
"k8s.io/kubernetes/pkg/volume/util/recyclerclient"
"k8s.io/kubernetes/pkg/volume/util/subpath"
volumetypes "k8s.io/kubernetes/pkg/volume/util/types"
"k8s.io/kubernetes/pkg/volume/util/volumepathhandler"
)
@ -104,206 +90,6 @@ const (
volumeMounted = "volumeMounted"
)
// fakeVolumeHost is useful for testing volume plugins.
type fakeVolumeHost struct {
rootDir string
kubeClient clientset.Interface
pluginMgr *VolumePluginMgr
cloud cloudprovider.Interface
mounter mount.Interface
hostUtil hostutil.HostUtils
exec *testingexec.FakeExec
nodeLabels map[string]string
nodeName string
subpather subpath.Interface
csiDriverLister storagelistersv1.CSIDriverLister
volumeAttachmentLister storagelistersv1.VolumeAttachmentLister
informerFactory informers.SharedInformerFactory
kubeletErr error
mux sync.Mutex
filteredDialOptions *proxyutil.FilteredDialOptions
}
var _ VolumeHost = &fakeVolumeHost{}
var _ AttachDetachVolumeHost = &fakeVolumeHost{}
func NewFakeVolumeHost(t *testing.T, rootDir string, kubeClient clientset.Interface, plugins []VolumePlugin) *fakeVolumeHost {
return newFakeVolumeHost(t, rootDir, kubeClient, plugins, nil, nil, "", nil, nil)
}
func NewFakeVolumeHostWithCloudProvider(t *testing.T, rootDir string, kubeClient clientset.Interface, plugins []VolumePlugin, cloud cloudprovider.Interface) *fakeVolumeHost {
return newFakeVolumeHost(t, rootDir, kubeClient, plugins, cloud, nil, "", nil, nil)
}
func NewFakeVolumeHostWithNodeLabels(t *testing.T, rootDir string, kubeClient clientset.Interface, plugins []VolumePlugin, labels map[string]string) *fakeVolumeHost {
volHost := newFakeVolumeHost(t, rootDir, kubeClient, plugins, nil, nil, "", nil, nil)
volHost.nodeLabels = labels
return volHost
}
func NewFakeVolumeHostWithCSINodeName(t *testing.T, rootDir string, kubeClient clientset.Interface, plugins []VolumePlugin, nodeName string, driverLister storagelistersv1.CSIDriverLister, volumeAttachLister storagelistersv1.VolumeAttachmentLister) *fakeVolumeHost {
return newFakeVolumeHost(t, rootDir, kubeClient, plugins, nil, nil, nodeName, driverLister, volumeAttachLister)
}
func NewFakeVolumeHostWithMounterFSType(t *testing.T, rootDir string, kubeClient clientset.Interface, plugins []VolumePlugin, pathToTypeMap map[string]hostutil.FileType) *fakeVolumeHost {
return newFakeVolumeHost(t, rootDir, kubeClient, plugins, nil, pathToTypeMap, "", nil, nil)
}
func newFakeVolumeHost(t *testing.T, rootDir string, kubeClient clientset.Interface, plugins []VolumePlugin, cloud cloudprovider.Interface, pathToTypeMap map[string]hostutil.FileType, nodeName string, driverLister storagelistersv1.CSIDriverLister, volumeAttachLister storagelistersv1.VolumeAttachmentLister) *fakeVolumeHost {
host := &fakeVolumeHost{rootDir: rootDir, kubeClient: kubeClient, cloud: cloud, nodeName: nodeName, csiDriverLister: driverLister, volumeAttachmentLister: volumeAttachLister}
host.mounter = mount.NewFakeMounter(nil)
host.hostUtil = hostutil.NewFakeHostUtil(pathToTypeMap)
host.exec = &testingexec.FakeExec{DisableScripts: true}
host.pluginMgr = &VolumePluginMgr{}
if err := host.pluginMgr.InitPlugins(plugins, nil /* prober */, host); err != nil {
t.Fatalf("Failed to init plugins while creating fake volume host: %v", err)
}
host.subpather = &subpath.FakeSubpath{}
host.informerFactory = informers.NewSharedInformerFactory(kubeClient, time.Minute)
// Wait until the InitPlugins setup is finished before returning from this setup func
if err := host.WaitForKubeletErrNil(); err != nil {
t.Fatalf("Failed to wait for kubelet err to be nil while creating fake volume host: %v", err)
}
return host
}
func (f *fakeVolumeHost) GetPluginDir(podUID string) string {
return filepath.Join(f.rootDir, "plugins", podUID)
}
func (f *fakeVolumeHost) GetVolumeDevicePluginDir(pluginName string) string {
return filepath.Join(f.rootDir, "plugins", pluginName, "volumeDevices")
}
func (f *fakeVolumeHost) GetPodsDir() string {
return filepath.Join(f.rootDir, "pods")
}
func (f *fakeVolumeHost) GetPodVolumeDir(podUID types.UID, pluginName, volumeName string) string {
return filepath.Join(f.rootDir, "pods", string(podUID), "volumes", pluginName, volumeName)
}
func (f *fakeVolumeHost) GetPodVolumeDeviceDir(podUID types.UID, pluginName string) string {
return filepath.Join(f.rootDir, "pods", string(podUID), "volumeDevices", pluginName)
}
func (f *fakeVolumeHost) GetPodPluginDir(podUID types.UID, pluginName string) string {
return filepath.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) GetHostUtil() hostutil.HostUtils {
return f.hostUtil
}
func (f *fakeVolumeHost) GetSubpather() subpath.Interface {
return f.subpather
}
func (f *fakeVolumeHost) GetFilteredDialOptions() *proxyutil.FilteredDialOptions {
return f.filteredDialOptions
}
func (f *fakeVolumeHost) GetPluginMgr() *VolumePluginMgr {
return f.pluginMgr
}
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(context.TODO(), name, metav1.GetOptions{})
}
}
func (f *fakeVolumeHost) GetExec(pluginName string) exec.Interface {
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(context.TODO(), 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(context.TODO(), name, tr, metav1.CreateOptions{})
}
}
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 (f *fakeVolumeHost) ScriptCommands(scripts []CommandScript) {
ScriptCommands(f.exec, scripts)
}
// CommandScript is used to pre-configure a command that will be executed and
// optionally set it's output (stdout and stderr combined) and return code.
type CommandScript struct {
@ -1869,48 +1655,3 @@ func ContainsAccessMode(modes []v1.PersistentVolumeAccessMode, mode v1.Persisten
}
return false
}
func (f *fakeVolumeHost) CSIDriverLister() storagelistersv1.CSIDriverLister {
return f.csiDriverLister
}
func (f *fakeVolumeHost) VolumeAttachmentLister() storagelistersv1.VolumeAttachmentLister {
return f.volumeAttachmentLister
}
func (f *fakeVolumeHost) CSIDriversSynced() cache.InformerSynced {
// not needed for testing
return nil
}
func (f *fakeVolumeHost) CSINodeLister() storagelistersv1.CSINodeLister {
// not needed for testing
return nil
}
func (f *fakeVolumeHost) GetInformerFactory() informers.SharedInformerFactory {
return f.informerFactory
}
func (f *fakeVolumeHost) IsAttachDetachController() bool {
return true
}
func (f *fakeVolumeHost) SetKubeletError(err error) {
f.mux.Lock()
defer f.mux.Unlock()
f.kubeletErr = err
return
}
func (f *fakeVolumeHost) WaitForCacheSync() error {
return nil
}
func (f *fakeVolumeHost) WaitForKubeletErrNil() error {
return wait.PollImmediate(10*time.Millisecond, 10*time.Second, func() (bool, error) {
f.mux.Lock()
defer f.mux.Unlock()
return f.kubeletErr == nil, nil
})
}

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@ -0,0 +1,292 @@
/*
Copyright 2020 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 (
"context"
"fmt"
"net"
"path/filepath"
"sync"
"testing"
"time"
authenticationv1 "k8s.io/api/authentication/v1"
v1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/types"
"k8s.io/apimachinery/pkg/util/wait"
"k8s.io/client-go/informers"
clientset "k8s.io/client-go/kubernetes"
storagelistersv1 "k8s.io/client-go/listers/storage/v1"
"k8s.io/client-go/tools/cache"
"k8s.io/client-go/tools/record"
cloudprovider "k8s.io/cloud-provider"
proxyutil "k8s.io/kubernetes/pkg/proxy/util"
. "k8s.io/kubernetes/pkg/volume"
"k8s.io/kubernetes/pkg/volume/util/hostutil"
"k8s.io/kubernetes/pkg/volume/util/subpath"
"k8s.io/mount-utils"
"k8s.io/utils/exec"
testingexec "k8s.io/utils/exec/testing"
)
// fakeVolumeHost is useful for testing volume plugins.
type fakeVolumeHost struct {
rootDir string
kubeClient clientset.Interface
pluginMgr *VolumePluginMgr
cloud cloudprovider.Interface
mounter mount.Interface
hostUtil hostutil.HostUtils
exec *testingexec.FakeExec
nodeLabels map[string]string
nodeName string
subpather subpath.Interface
csiDriverLister storagelistersv1.CSIDriverLister
volumeAttachmentLister storagelistersv1.VolumeAttachmentLister
informerFactory informers.SharedInformerFactory
kubeletErr error
mux sync.Mutex
filteredDialOptions *proxyutil.FilteredDialOptions
}
var _ VolumeHost = &fakeVolumeHost{}
var _ AttachDetachVolumeHost = &fakeVolumeHost{}
var _ KubeletVolumeHost = &fakeVolumeHost{}
func NewFakeVolumeHost(t *testing.T, rootDir string, kubeClient clientset.Interface, plugins []VolumePlugin) *fakeVolumeHost {
return newFakeVolumeHost(t, rootDir, kubeClient, plugins, nil, nil, "", nil, nil)
}
func NewFakeVolumeHostWithCloudProvider(t *testing.T, rootDir string, kubeClient clientset.Interface, plugins []VolumePlugin, cloud cloudprovider.Interface) *fakeVolumeHost {
return newFakeVolumeHost(t, rootDir, kubeClient, plugins, cloud, nil, "", nil, nil)
}
func NewFakeVolumeHostWithNodeLabels(t *testing.T, rootDir string, kubeClient clientset.Interface, plugins []VolumePlugin, labels map[string]string) *fakeVolumeHost {
volHost := newFakeVolumeHost(t, rootDir, kubeClient, plugins, nil, nil, "", nil, nil)
volHost.nodeLabels = labels
return volHost
}
func NewFakeVolumeHostWithCSINodeName(t *testing.T, rootDir string, kubeClient clientset.Interface, plugins []VolumePlugin, nodeName string, driverLister storagelistersv1.CSIDriverLister, volumeAttachLister storagelistersv1.VolumeAttachmentLister) *fakeVolumeHost {
return newFakeVolumeHost(t, rootDir, kubeClient, plugins, nil, nil, nodeName, driverLister, volumeAttachLister)
}
func NewFakeVolumeHostWithMounterFSType(t *testing.T, rootDir string, kubeClient clientset.Interface, plugins []VolumePlugin, pathToTypeMap map[string]hostutil.FileType) *fakeVolumeHost {
return newFakeVolumeHost(t, rootDir, kubeClient, plugins, nil, pathToTypeMap, "", nil, nil)
}
func newFakeVolumeHost(t *testing.T, rootDir string, kubeClient clientset.Interface, plugins []VolumePlugin, cloud cloudprovider.Interface, pathToTypeMap map[string]hostutil.FileType, nodeName string, driverLister storagelistersv1.CSIDriverLister, volumeAttachLister storagelistersv1.VolumeAttachmentLister) *fakeVolumeHost {
host := &fakeVolumeHost{rootDir: rootDir, kubeClient: kubeClient, cloud: cloud, nodeName: nodeName, csiDriverLister: driverLister, volumeAttachmentLister: volumeAttachLister}
host.mounter = mount.NewFakeMounter(nil)
host.hostUtil = hostutil.NewFakeHostUtil(pathToTypeMap)
host.exec = &testingexec.FakeExec{DisableScripts: true}
host.pluginMgr = &VolumePluginMgr{}
if err := host.pluginMgr.InitPlugins(plugins, nil /* prober */, host); err != nil {
t.Fatalf("Failed to init plugins while creating fake volume host: %v", err)
}
host.subpather = &subpath.FakeSubpath{}
host.informerFactory = informers.NewSharedInformerFactory(kubeClient, time.Minute)
// Wait until the InitPlugins setup is finished before returning from this setup func
if err := host.WaitForKubeletErrNil(); err != nil {
t.Fatalf("Failed to wait for kubelet err to be nil while creating fake volume host: %v", err)
}
return host
}
func (f *fakeVolumeHost) GetPluginDir(podUID string) string {
return filepath.Join(f.rootDir, "plugins", podUID)
}
func (f *fakeVolumeHost) GetVolumeDevicePluginDir(pluginName string) string {
return filepath.Join(f.rootDir, "plugins", pluginName, "volumeDevices")
}
func (f *fakeVolumeHost) GetPodsDir() string {
return filepath.Join(f.rootDir, "pods")
}
func (f *fakeVolumeHost) GetPodVolumeDir(podUID types.UID, pluginName, volumeName string) string {
return filepath.Join(f.rootDir, "pods", string(podUID), "volumes", pluginName, volumeName)
}
func (f *fakeVolumeHost) GetPodVolumeDeviceDir(podUID types.UID, pluginName string) string {
return filepath.Join(f.rootDir, "pods", string(podUID), "volumeDevices", pluginName)
}
func (f *fakeVolumeHost) GetPodPluginDir(podUID types.UID, pluginName string) string {
return filepath.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) GetHostUtil() hostutil.HostUtils {
return f.hostUtil
}
func (f *fakeVolumeHost) GetSubpather() subpath.Interface {
return f.subpather
}
func (f *fakeVolumeHost) GetFilteredDialOptions() *proxyutil.FilteredDialOptions {
return f.filteredDialOptions
}
func (f *fakeVolumeHost) GetPluginMgr() *VolumePluginMgr {
return f.pluginMgr
}
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(context.TODO(), name, metav1.GetOptions{})
}
}
func (f *fakeVolumeHost) GetExec(pluginName string) exec.Interface {
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(context.TODO(), 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(context.TODO(), name, tr, metav1.CreateOptions{})
}
}
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 (f *fakeVolumeHost) ScriptCommands(scripts []CommandScript) {
ScriptCommands(f.exec, scripts)
}
func (f *fakeVolumeHost) CSIDriverLister() storagelistersv1.CSIDriverLister {
return f.csiDriverLister
}
func (f *fakeVolumeHost) VolumeAttachmentLister() storagelistersv1.VolumeAttachmentLister {
return f.volumeAttachmentLister
}
func (f *fakeVolumeHost) CSIDriversSynced() cache.InformerSynced {
// not needed for testing
return nil
}
func (f *fakeVolumeHost) CSINodeLister() storagelistersv1.CSINodeLister {
// not needed for testing
return nil
}
func (f *fakeVolumeHost) GetInformerFactory() informers.SharedInformerFactory {
return f.informerFactory
}
func (f *fakeVolumeHost) IsAttachDetachController() bool {
return true
}
func (f *fakeVolumeHost) SetKubeletError(err error) {
f.mux.Lock()
defer f.mux.Unlock()
f.kubeletErr = err
return
}
func (f *fakeVolumeHost) WaitForCacheSync() error {
return nil
}
func (f *fakeVolumeHost) WaitForKubeletErrNil() error {
return wait.PollImmediate(10*time.Millisecond, 10*time.Second, func() (bool, error) {
f.mux.Lock()
defer f.mux.Unlock()
return f.kubeletErr == nil, nil
})
}