mirror of https://github.com/k3s-io/k3s
262 lines
8.3 KiB
Go
262 lines
8.3 KiB
Go
/*
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Copyright 2014 The Kubernetes Authors All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package nfs
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import (
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"os"
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"testing"
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"k8s.io/kubernetes/pkg/api"
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"k8s.io/kubernetes/pkg/api/testapi"
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"k8s.io/kubernetes/pkg/client/unversioned/testclient"
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"k8s.io/kubernetes/pkg/types"
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"k8s.io/kubernetes/pkg/util/mount"
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"k8s.io/kubernetes/pkg/volume"
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)
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func TestCanSupport(t *testing.T) {
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plugMgr := volume.VolumePluginMgr{}
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plugMgr.InitPlugins(ProbeVolumePlugins(volume.VolumeConfig{}), volume.NewFakeVolumeHost("fake", nil, nil))
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plug, err := plugMgr.FindPluginByName("kubernetes.io/nfs")
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if err != nil {
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t.Errorf("Can't find the plugin by name")
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}
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if plug.Name() != "kubernetes.io/nfs" {
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t.Errorf("Wrong name: %s", plug.Name())
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}
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foundMount := hasNFSMount()
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if plug.CanSupport(&volume.Spec{Volume: &api.Volume{VolumeSource: api.VolumeSource{NFS: &api.NFSVolumeSource{}}}}) != foundMount {
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t.Errorf("Expected true")
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}
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if plug.CanSupport(&volume.Spec{PersistentVolume: &api.PersistentVolume{Spec: api.PersistentVolumeSpec{PersistentVolumeSource: api.PersistentVolumeSource{NFS: &api.NFSVolumeSource{}}}}}) != foundMount {
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t.Errorf("Expected true")
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}
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if plug.CanSupport(&volume.Spec{PersistentVolume: &api.PersistentVolume{Spec: api.PersistentVolumeSpec{PersistentVolumeSource: api.PersistentVolumeSource{}}}}) {
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t.Errorf("Expected false")
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}
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if plug.CanSupport(&volume.Spec{Volume: &api.Volume{VolumeSource: api.VolumeSource{}}}) {
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t.Errorf("Expected false")
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}
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}
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func TestGetAccessModes(t *testing.T) {
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plugMgr := volume.VolumePluginMgr{}
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plugMgr.InitPlugins(ProbeVolumePlugins(volume.VolumeConfig{}), volume.NewFakeVolumeHost("/tmp/fake", nil, nil))
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plug, err := plugMgr.FindPersistentPluginByName("kubernetes.io/nfs")
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if err != nil {
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t.Errorf("Can't find the plugin by name")
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}
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if !contains(plug.GetAccessModes(), api.ReadWriteOnce) || !contains(plug.GetAccessModes(), api.ReadOnlyMany) || !contains(plug.GetAccessModes(), api.ReadWriteMany) {
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t.Errorf("Expected three AccessModeTypes: %s, %s, and %s", api.ReadWriteOnce, api.ReadOnlyMany, api.ReadWriteMany)
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}
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}
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func TestRecycler(t *testing.T) {
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if foundMount := hasNFSMount(); !foundMount {
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// FindRecyclablePluginBySpec will test CanSupport() but mount helper is absent
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return
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}
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plugMgr := volume.VolumePluginMgr{}
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plugMgr.InitPlugins([]volume.VolumePlugin{&nfsPlugin{nil, newMockRecycler, volume.VolumeConfig{}}}, volume.NewFakeVolumeHost("/tmp/fake", nil, nil))
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spec := &volume.Spec{PersistentVolume: &api.PersistentVolume{Spec: api.PersistentVolumeSpec{PersistentVolumeSource: api.PersistentVolumeSource{NFS: &api.NFSVolumeSource{Path: "/foo"}}}}}
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plug, err := plugMgr.FindRecyclablePluginBySpec(spec)
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if err != nil {
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t.Errorf("Can't find the plugin by name")
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}
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recycler, err := plug.NewRecycler(spec)
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if err != nil {
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t.Errorf("Failed to make a new Recyler: %v", err)
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}
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if recycler.GetPath() != spec.PersistentVolume.Spec.NFS.Path {
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t.Errorf("Expected %s but got %s", spec.PersistentVolume.Spec.NFS.Path, recycler.GetPath())
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}
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if err := recycler.Recycle(); err != nil {
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t.Errorf("Mock Recycler expected to return nil but got %s", err)
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}
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}
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func newMockRecycler(spec *volume.Spec, host volume.VolumeHost, config volume.VolumeConfig) (volume.Recycler, error) {
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return &mockRecycler{
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path: spec.PersistentVolume.Spec.NFS.Path,
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}, nil
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}
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type mockRecycler struct {
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path string
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host volume.VolumeHost
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}
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func (r *mockRecycler) GetPath() string {
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return r.path
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}
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func (r *mockRecycler) Recycle() error {
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// return nil means recycle passed
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return nil
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}
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func contains(modes []api.PersistentVolumeAccessMode, mode api.PersistentVolumeAccessMode) bool {
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for _, m := range modes {
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if m == mode {
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return true
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}
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}
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return false
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}
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func doTestPlugin(t *testing.T, spec *volume.Spec) {
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plugMgr := volume.VolumePluginMgr{}
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plugMgr.InitPlugins(ProbeVolumePlugins(volume.VolumeConfig{}), volume.NewFakeVolumeHost("/tmp/fake", nil, nil))
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plug, err := plugMgr.FindPluginByName("kubernetes.io/nfs")
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if err != nil {
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t.Errorf("Can't find the plugin by name")
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}
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fake := &mount.FakeMounter{}
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pod := &api.Pod{ObjectMeta: api.ObjectMeta{UID: types.UID("poduid")}}
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builder, err := plug.(*nfsPlugin).newBuilderInternal(spec, pod, fake)
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volumePath := builder.GetPath()
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if err != nil {
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t.Errorf("Failed to make a new Builder: %v", err)
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}
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if builder == nil {
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t.Errorf("Got a nil Builder")
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}
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path := builder.GetPath()
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if path != "/tmp/fake/pods/poduid/volumes/kubernetes.io~nfs/vol1" {
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t.Errorf("Got unexpected path: %s", path)
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}
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if err := builder.SetUp(); err != nil {
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t.Errorf("Expected success, got: %v", err)
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}
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if _, err := os.Stat(volumePath); err != nil {
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if os.IsNotExist(err) {
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t.Errorf("SetUp() failed, volume path not created: %s", volumePath)
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} else {
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t.Errorf("SetUp() failed: %v", err)
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}
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}
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if builder.(*nfsBuilder).readOnly {
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t.Errorf("The volume source should not be read-only and it is.")
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}
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if len(fake.Log) != 1 {
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t.Errorf("Mount was not called exactly one time. It was called %d times.", len(fake.Log))
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} else {
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if fake.Log[0].Action != mount.FakeActionMount {
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t.Errorf("Unexpected mounter action: %#v", fake.Log[0])
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}
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}
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fake.ResetLog()
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cleaner, err := plug.(*nfsPlugin).newCleanerInternal("vol1", types.UID("poduid"), fake)
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if err != nil {
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t.Errorf("Failed to make a new Cleaner: %v", err)
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}
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if cleaner == nil {
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t.Errorf("Got a nil Cleaner")
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}
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if err := cleaner.TearDown(); err != nil {
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t.Errorf("Expected success, got: %v", err)
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}
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if _, err := os.Stat(volumePath); err == nil {
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t.Errorf("TearDown() failed, volume path still exists: %s", volumePath)
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} else if !os.IsNotExist(err) {
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t.Errorf("SetUp() failed: %v", err)
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}
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if len(fake.Log) != 1 {
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t.Errorf("Unmount was not called exactly one time. It was called %d times.", len(fake.Log))
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} else {
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if fake.Log[0].Action != mount.FakeActionUnmount {
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t.Errorf("Unexpected mounter action: %#v", fake.Log[0])
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}
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}
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fake.ResetLog()
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}
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func TestPluginVolume(t *testing.T) {
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vol := &api.Volume{
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Name: "vol1",
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VolumeSource: api.VolumeSource{NFS: &api.NFSVolumeSource{Server: "localhost", Path: "/tmp", ReadOnly: false}},
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}
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doTestPlugin(t, volume.NewSpecFromVolume(vol))
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}
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func TestPluginPersistentVolume(t *testing.T) {
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vol := &api.PersistentVolume{
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ObjectMeta: api.ObjectMeta{
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Name: "vol1",
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},
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Spec: api.PersistentVolumeSpec{
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PersistentVolumeSource: api.PersistentVolumeSource{
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NFS: &api.NFSVolumeSource{Server: "localhost", Path: "/tmp", ReadOnly: false},
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},
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},
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}
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doTestPlugin(t, volume.NewSpecFromPersistentVolume(vol, false))
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}
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func TestPersistentClaimReadOnlyFlag(t *testing.T) {
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pv := &api.PersistentVolume{
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ObjectMeta: api.ObjectMeta{
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Name: "pvA",
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},
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Spec: api.PersistentVolumeSpec{
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PersistentVolumeSource: api.PersistentVolumeSource{
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NFS: &api.NFSVolumeSource{},
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},
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ClaimRef: &api.ObjectReference{
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Name: "claimA",
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},
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},
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}
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claim := &api.PersistentVolumeClaim{
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ObjectMeta: api.ObjectMeta{
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Name: "claimA",
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Namespace: "nsA",
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},
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Spec: api.PersistentVolumeClaimSpec{
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VolumeName: "pvA",
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},
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Status: api.PersistentVolumeClaimStatus{
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Phase: api.ClaimBound,
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},
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}
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o := testclient.NewObjects(api.Scheme, api.Scheme)
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o.Add(pv)
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o.Add(claim)
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client := &testclient.Fake{}
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client.AddReactor("*", "*", testclient.ObjectReaction(o, testapi.Default.RESTMapper()))
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plugMgr := volume.VolumePluginMgr{}
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plugMgr.InitPlugins(ProbeVolumePlugins(volume.VolumeConfig{}), volume.NewFakeVolumeHost("/tmp/fake", client, nil))
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plug, _ := plugMgr.FindPluginByName(nfsPluginName)
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// readOnly bool is supplied by persistent-claim volume source when its builder creates other volumes
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spec := volume.NewSpecFromPersistentVolume(pv, true)
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pod := &api.Pod{ObjectMeta: api.ObjectMeta{UID: types.UID("poduid")}}
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builder, _ := plug.NewBuilder(spec, pod, volume.VolumeOptions{})
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if !builder.IsReadOnly() {
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t.Errorf("Expected true for builder.IsReadOnly")
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}
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}
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