mirror of https://github.com/k3s-io/k3s
325 lines
9.4 KiB
Go
325 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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"io/ioutil"
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"strings"
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"testing"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/api/latest"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/client"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/client/testclient"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/types"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/util"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/volume"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/volume/gce_pd"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/volume/host_path"
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)
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func newTestHost(t *testing.T, fakeKubeClient client.Interface) volume.VolumeHost {
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tempDir, err := ioutil.TempDir("/tmp", "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 volume.NewFakeVolumeHost(tempDir, fakeKubeClient, 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(), volume.NewFakeVolumeHost("/tmp/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{Name: "foo", 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{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{VolumeSource: api.VolumeSource{}}) {
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t.Errorf("Expected false")
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}
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}
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func TestNewBuilder(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(builder volume.Builder, 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(builder volume.Builder, plugin volume.VolumePlugin) error {
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if !strings.Contains(builder.GetPath(), util.EscapeQualifiedNameForDisk(plugin.Name())) {
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return fmt.Errorf("builder path expected to contain plugin name. Got: %s", builder.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: "/tmp"},
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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()[0],
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testFunc: func(builder volume.Builder, plugin volume.VolumePlugin) error {
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if builder.GetPath() != "/tmp" {
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return fmt.Errorf("Expected HostPath.Path /tmp, got: %s", builder.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(builder volume.Builder, plugin volume.VolumePlugin) error {
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if builder != nil {
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return fmt.Errorf("Unexpected non-nil builder: %+v", builder)
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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(builder volume.Builder, plugin volume.VolumePlugin) error {
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if builder != nil {
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return fmt.Errorf("Unexpected non-nil builder: %+v", builder)
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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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o := testclient.NewObjects(api.Scheme, api.Scheme)
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o.Add(item.pv)
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o.Add(item.claim)
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client := &testclient.Fake{ReactFn: testclient.ObjectReaction(o, latest.RESTMapper)}
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plugMgr := volume.VolumePluginMgr{}
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plugMgr.InitPlugins(testProbeVolumePlugins(), newTestHost(t, client))
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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{
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Name: "vol1",
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VolumeSource: item.podVolume,
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}
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pod := &api.Pod{ObjectMeta: api.ObjectMeta{UID: types.UID("poduid")}}
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builder, err := plug.NewBuilder(spec, pod, volume.VolumeOptions{}, nil)
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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 Builder: %v", err)
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}
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if builder == nil {
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t.Errorf("Got a nil Builder: %v", builder)
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}
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}
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if err := item.testFunc(builder, 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 TestNewBuilderClaimNotBound(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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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{ReactFn: testclient.ObjectReaction(o, latest.RESTMapper)}
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plugMgr := volume.VolumePluginMgr{}
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plugMgr.InitPlugins(testProbeVolumePlugins(), newTestHost(t, client))
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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{
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Name: "vol1",
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VolumeSource: podVolume,
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}
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pod := &api.Pod{ObjectMeta: api.ObjectMeta{UID: types.UID("poduid")}}
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builder, err := plug.NewBuilder(spec, pod, volume.VolumeOptions{}, nil)
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if builder != nil {
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t.Errorf("Expected a nil builder 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()...)
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allPlugins = append(allPlugins, ProbeVolumePlugins()...)
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return allPlugins
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}
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