320 lines
9.4 KiB
Go
320 lines
9.4 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 persistent_claim
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import (
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"fmt"
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"os"
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"strings"
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"testing"
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"k8s.io/kubernetes/pkg/api"
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clientset "k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
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"k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset/fake"
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"k8s.io/kubernetes/pkg/types"
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utilstrings "k8s.io/kubernetes/pkg/util/strings"
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utiltesting "k8s.io/kubernetes/pkg/util/testing"
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"k8s.io/kubernetes/pkg/volume"
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"k8s.io/kubernetes/pkg/volume/gce_pd"
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"k8s.io/kubernetes/pkg/volume/host_path"
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volumetest "k8s.io/kubernetes/pkg/volume/testing"
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)
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// newTestHost returns the temp directory and the VolumeHost created.
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// Please be sure to cleanup the temp directory once done!
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func newTestHost(t *testing.T, clientset clientset.Interface) (string, volume.VolumeHost) {
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tempDir, err := utiltesting.MkTmpdir("persistent_volume_test.")
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if err != nil {
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t.Fatalf("can't make a temp rootdir: %v", err)
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}
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return tempDir, volumetest.NewFakeVolumeHost(tempDir, clientset, testProbeVolumePlugins())
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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(), volumetest.NewFakeVolumeHost("/somepath/fake", nil, ProbeVolumePlugins()))
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plug, err := plugMgr.FindPluginByName("kubernetes.io/persistent-claim")
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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/persistent-claim" {
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t.Errorf("Wrong name: %s", plug.Name())
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}
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if !plug.CanSupport(&volume.Spec{Volume: &api.Volume{VolumeSource: api.VolumeSource{PersistentVolumeClaim: &api.PersistentVolumeClaimVolumeSource{}}}}) {
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t.Errorf("Expected true")
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}
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if plug.CanSupport(&volume.Spec{Volume: &api.Volume{VolumeSource: api.VolumeSource{GitRepo: &api.GitRepoVolumeSource{}}}}) {
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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 TestNewMounter(t *testing.T) {
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tests := []struct {
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pv *api.PersistentVolume
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claim *api.PersistentVolumeClaim
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plugin volume.VolumePlugin
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podVolume api.VolumeSource
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testFunc func(mounter volume.Mounter, plugin volume.VolumePlugin) error
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expectedFailure bool
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}{
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{
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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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GCEPersistentDisk: &api.GCEPersistentDiskVolumeSource{},
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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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podVolume: api.VolumeSource{
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PersistentVolumeClaim: &api.PersistentVolumeClaimVolumeSource{
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ReadOnly: false,
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ClaimName: "claimA",
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},
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},
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plugin: gce_pd.ProbeVolumePlugins()[0],
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testFunc: func(mounter volume.Mounter, plugin volume.VolumePlugin) error {
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if !strings.Contains(mounter.GetPath(), utilstrings.EscapeQualifiedNameForDisk(plugin.Name())) {
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return fmt.Errorf("mounter path expected to contain plugin name. Got: %s", mounter.GetPath())
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}
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return nil
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},
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expectedFailure: false,
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},
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{
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pv: &api.PersistentVolume{
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ObjectMeta: api.ObjectMeta{
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Name: "pvB",
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},
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Spec: api.PersistentVolumeSpec{
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PersistentVolumeSource: api.PersistentVolumeSource{
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HostPath: &api.HostPathVolumeSource{Path: "/somepath"},
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},
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ClaimRef: &api.ObjectReference{
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Name: "claimB",
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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: "claimB",
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Namespace: "nsB",
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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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},
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podVolume: api.VolumeSource{
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PersistentVolumeClaim: &api.PersistentVolumeClaimVolumeSource{
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ReadOnly: false,
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ClaimName: "claimB",
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},
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},
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plugin: host_path.ProbeVolumePlugins(volume.VolumeConfig{})[0],
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testFunc: func(mounter volume.Mounter, plugin volume.VolumePlugin) error {
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if mounter.GetPath() != "/somepath" {
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return fmt.Errorf("Expected HostPath.Path /somepath, got: %s", mounter.GetPath())
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}
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return nil
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},
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expectedFailure: false,
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},
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{
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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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GCEPersistentDisk: &api.GCEPersistentDiskVolumeSource{},
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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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podVolume: api.VolumeSource{
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PersistentVolumeClaim: &api.PersistentVolumeClaimVolumeSource{
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ReadOnly: false,
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ClaimName: "claimA",
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},
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},
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plugin: gce_pd.ProbeVolumePlugins()[0],
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testFunc: func(mounter volume.Mounter, plugin volume.VolumePlugin) error {
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if mounter != nil {
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return fmt.Errorf("Unexpected non-nil mounter: %+v", mounter)
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}
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return nil
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},
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expectedFailure: true, // missing pv.Spec.ClaimRef
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},
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{
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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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GCEPersistentDisk: &api.GCEPersistentDiskVolumeSource{},
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},
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ClaimRef: &api.ObjectReference{
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Name: "claimB",
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UID: types.UID("abc123"),
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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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UID: types.UID("def456"),
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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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podVolume: api.VolumeSource{
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PersistentVolumeClaim: &api.PersistentVolumeClaimVolumeSource{
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ReadOnly: false,
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ClaimName: "claimA",
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},
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},
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plugin: gce_pd.ProbeVolumePlugins()[0],
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testFunc: func(mounter volume.Mounter, plugin volume.VolumePlugin) error {
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if mounter != nil {
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return fmt.Errorf("Unexpected non-nil mounter: %+v", mounter)
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}
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return nil
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},
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expectedFailure: true, // mismatched pv.Spec.ClaimRef and pvc
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},
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}
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for _, item := range tests {
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client := fake.NewSimpleClientset(item.pv, item.claim)
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plugMgr := volume.VolumePluginMgr{}
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tempDir, vh := newTestHost(t, client)
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defer os.RemoveAll(tempDir)
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plugMgr.InitPlugins(testProbeVolumePlugins(), vh)
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plug, err := plugMgr.FindPluginByName("kubernetes.io/persistent-claim")
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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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spec := &volume.Spec{Volume: &api.Volume{VolumeSource: item.podVolume}}
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pod := &api.Pod{ObjectMeta: api.ObjectMeta{UID: types.UID("poduid")}}
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mounter, err := plug.NewMounter(spec, pod, volume.VolumeOptions{})
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if !item.expectedFailure {
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if err != nil {
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t.Errorf("Failed to make a new Mounter: %v", err)
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}
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if mounter == nil {
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t.Errorf("Got a nil Mounter: %v", mounter)
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}
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}
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if err := item.testFunc(mounter, item.plugin); err != nil {
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t.Errorf("Unexpected error %+v", err)
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}
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}
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}
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func TestNewMounterClaimNotBound(t *testing.T) {
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pv := &api.PersistentVolume{
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ObjectMeta: api.ObjectMeta{
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Name: "pvC",
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},
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Spec: api.PersistentVolumeSpec{
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PersistentVolumeSource: api.PersistentVolumeSource{
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GCEPersistentDisk: &api.GCEPersistentDiskVolumeSource{},
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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: "claimC",
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Namespace: "nsA",
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},
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}
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podVolume := api.VolumeSource{
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PersistentVolumeClaim: &api.PersistentVolumeClaimVolumeSource{
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ReadOnly: false,
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ClaimName: "claimC",
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},
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}
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client := fake.NewSimpleClientset(pv, claim)
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plugMgr := volume.VolumePluginMgr{}
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tempDir, vh := newTestHost(t, client)
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defer os.RemoveAll(tempDir)
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plugMgr.InitPlugins(testProbeVolumePlugins(), vh)
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plug, err := plugMgr.FindPluginByName("kubernetes.io/persistent-claim")
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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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spec := &volume.Spec{Volume: &api.Volume{VolumeSource: podVolume}}
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pod := &api.Pod{ObjectMeta: api.ObjectMeta{UID: types.UID("poduid")}}
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mounter, err := plug.NewMounter(spec, pod, volume.VolumeOptions{})
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if mounter != nil {
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t.Errorf("Expected a nil mounter if the claim wasn't bound")
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}
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}
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func testProbeVolumePlugins() []volume.VolumePlugin {
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allPlugins := []volume.VolumePlugin{}
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allPlugins = append(allPlugins, gce_pd.ProbeVolumePlugins()...)
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allPlugins = append(allPlugins, host_path.ProbeVolumePlugins(volume.VolumeConfig{})...)
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allPlugins = append(allPlugins, ProbeVolumePlugins()...)
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return allPlugins
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}
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