mirror of https://github.com/k3s-io/k3s
266 lines
8.0 KiB
Go
266 lines
8.0 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 aws_ebs
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import (
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"io/ioutil"
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"os"
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"path"
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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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tmpDir, err := ioutil.TempDir(os.TempDir(), "awsebsTest")
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if err != nil {
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t.Fatalf("can't make a temp dir: %v", err)
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}
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defer os.RemoveAll(tmpDir)
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plugMgr := volume.VolumePluginMgr{}
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plugMgr.InitPlugins(ProbeVolumePlugins(), volume.NewFakeVolumeHost(tmpDir, nil, nil))
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plug, err := plugMgr.FindPluginByName("kubernetes.io/aws-ebs")
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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/aws-ebs" {
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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{AWSElasticBlockStore: &api.AWSElasticBlockStoreVolumeSource{}}}}) {
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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{AWSElasticBlockStore: &api.AWSElasticBlockStoreVolumeSource{}}}}}) {
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t.Errorf("Expected true")
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}
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}
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func TestGetAccessModes(t *testing.T) {
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tmpDir, err := ioutil.TempDir(os.TempDir(), "awsebsTest")
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if err != nil {
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t.Fatalf("can't make a temp dir: %v", err)
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}
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defer os.RemoveAll(tmpDir)
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plugMgr := volume.VolumePluginMgr{}
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plugMgr.InitPlugins(ProbeVolumePlugins(), volume.NewFakeVolumeHost(tmpDir, nil, nil))
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plug, err := plugMgr.FindPersistentPluginByName("kubernetes.io/aws-ebs")
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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) {
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t.Errorf("Expected to find AccessMode: %s", api.ReadWriteOnce)
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}
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if len(plug.GetAccessModes()) != 1 {
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t.Errorf("Expected to find exactly one AccessMode")
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}
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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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type fakePDManager struct{}
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// TODO(jonesdl) To fully test this, we could create a loopback device
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// and mount that instead.
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func (fake *fakePDManager) AttachAndMountDisk(b *awsElasticBlockStoreBuilder, globalPDPath string) error {
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globalPath := makeGlobalPDPath(b.plugin.host, b.volumeID)
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err := os.MkdirAll(globalPath, 0750)
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if err != nil {
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return err
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}
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return nil
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}
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func (fake *fakePDManager) DetachDisk(c *awsElasticBlockStoreCleaner) error {
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globalPath := makeGlobalPDPath(c.plugin.host, c.volumeID)
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err := os.RemoveAll(globalPath)
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if err != nil {
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return err
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}
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return nil
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}
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func TestPlugin(t *testing.T) {
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tmpDir, err := ioutil.TempDir(os.TempDir(), "awsebsTest")
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if err != nil {
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t.Fatalf("can't make a temp dir: %v")
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}
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defer os.RemoveAll(tmpDir)
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plugMgr := volume.VolumePluginMgr{}
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plugMgr.InitPlugins(ProbeVolumePlugins(), volume.NewFakeVolumeHost(tmpDir, nil, nil))
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plug, err := plugMgr.FindPluginByName("kubernetes.io/aws-ebs")
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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 := &api.Volume{
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Name: "vol1",
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VolumeSource: api.VolumeSource{
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AWSElasticBlockStore: &api.AWSElasticBlockStoreVolumeSource{
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VolumeID: "pd",
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FSType: "ext4",
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},
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},
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}
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builder, err := plug.(*awsElasticBlockStorePlugin).newBuilderInternal(volume.NewSpecFromVolume(spec), types.UID("poduid"), &fakePDManager{}, &mount.FakeMounter{})
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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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volPath := path.Join(tmpDir, "pods/poduid/volumes/kubernetes.io~aws-ebs/vol1")
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path := builder.GetPath()
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if path != volPath {
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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(path); err != nil {
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if os.IsNotExist(err) {
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t.Errorf("SetUp() failed, volume path not created: %s", path)
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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 _, err := os.Stat(path); err != nil {
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if os.IsNotExist(err) {
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t.Errorf("SetUp() failed, volume path not created: %s", path)
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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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cleaner, err := plug.(*awsElasticBlockStorePlugin).newCleanerInternal("vol1", types.UID("poduid"), &fakePDManager{}, &mount.FakeMounter{})
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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(path); err == nil {
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t.Errorf("TearDown() failed, volume path still exists: %s", path)
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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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}
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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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AWSElasticBlockStore: &api.AWSElasticBlockStoreVolumeSource{},
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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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tmpDir, err := ioutil.TempDir(os.TempDir(), "awsebsTest")
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if err != nil {
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t.Fatalf("can't make a temp dir: %v", err)
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}
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defer os.RemoveAll(tmpDir)
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plugMgr := volume.VolumePluginMgr{}
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plugMgr.InitPlugins(ProbeVolumePlugins(), volume.NewFakeVolumeHost(tmpDir, client, nil))
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plug, _ := plugMgr.FindPluginByName(awsElasticBlockStorePluginName)
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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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func TestBuilderAndCleanerTypeAssert(t *testing.T) {
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tmpDir, err := ioutil.TempDir(os.TempDir(), "awsebsTest")
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if err != nil {
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t.Fatalf("can't make a temp dir: %v", err)
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}
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defer os.RemoveAll(tmpDir)
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plugMgr := volume.VolumePluginMgr{}
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plugMgr.InitPlugins(ProbeVolumePlugins(), volume.NewFakeVolumeHost(tmpDir, nil, nil))
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plug, err := plugMgr.FindPluginByName("kubernetes.io/aws-ebs")
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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 := &api.Volume{
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Name: "vol1",
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VolumeSource: api.VolumeSource{
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AWSElasticBlockStore: &api.AWSElasticBlockStoreVolumeSource{
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VolumeID: "pd",
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FSType: "ext4",
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},
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},
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}
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builder, err := plug.(*awsElasticBlockStorePlugin).newBuilderInternal(volume.NewSpecFromVolume(spec), types.UID("poduid"), &fakePDManager{}, &mount.FakeMounter{})
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if _, ok := builder.(volume.Cleaner); ok {
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t.Errorf("Volume Builder can be type-assert to Cleaner")
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}
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cleaner, err := plug.(*awsElasticBlockStorePlugin).newCleanerInternal("vol1", types.UID("poduid"), &fakePDManager{}, &mount.FakeMounter{})
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if _, ok := cleaner.(volume.Builder); ok {
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t.Errorf("Volume Cleaner can be type-assert to Builder")
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}
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}
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