mirror of https://github.com/k3s-io/k3s
240 lines
7.5 KiB
Go
240 lines
7.5 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors.
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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 vsphere_volume
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import (
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"fmt"
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"os"
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"path"
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"testing"
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"k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/types"
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utiltesting "k8s.io/client-go/util/testing"
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cloudprovider "k8s.io/cloud-provider"
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"k8s.io/kubernetes/pkg/cloudprovider/providers/fake"
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"k8s.io/kubernetes/pkg/cloudprovider/providers/vsphere"
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"k8s.io/kubernetes/pkg/util/mount"
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"k8s.io/kubernetes/pkg/volume"
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volumetest "k8s.io/kubernetes/pkg/volume/testing"
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)
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func TestCanSupport(t *testing.T) {
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tmpDir, err := utiltesting.MkTmpdir("vsphereVolumeTest")
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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(), nil /* prober */, volumetest.NewFakeVolumeHost(tmpDir, nil, nil))
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plug, err := plugMgr.FindPluginByName("kubernetes.io/vsphere-volume")
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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.GetPluginName() != "kubernetes.io/vsphere-volume" {
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t.Errorf("Wrong name: %s", plug.GetPluginName())
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}
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if !plug.CanSupport(&volume.Spec{Volume: &v1.Volume{VolumeSource: v1.VolumeSource{VsphereVolume: &v1.VsphereVirtualDiskVolumeSource{}}}}) {
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t.Errorf("Expected true")
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}
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if !plug.CanSupport(&volume.Spec{PersistentVolume: &v1.PersistentVolume{Spec: v1.PersistentVolumeSpec{PersistentVolumeSource: v1.PersistentVolumeSource{VsphereVolume: &v1.VsphereVirtualDiskVolumeSource{}}}}}) {
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t.Errorf("Expected true")
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}
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}
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type fakePDManager struct {
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}
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func getFakeDeviceName(host volume.VolumeHost, volPath string) string {
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return path.Join(host.GetPluginDir(vsphereVolumePluginName), "device", volPath)
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}
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func (fake *fakePDManager) CreateVolume(v *vsphereVolumeProvisioner) (volSpec *VolumeSpec, err error) {
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volSpec = &VolumeSpec{
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Path: "[local] test-volume-name.vmdk",
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Size: 100,
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Fstype: "ext4",
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StoragePolicyName: "gold",
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StoragePolicyID: "1234",
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}
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return volSpec, nil
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}
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func (fake *fakePDManager) DeleteVolume(vd *vsphereVolumeDeleter) error {
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if vd.volPath != "[local] test-volume-name.vmdk" {
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return fmt.Errorf("Deleter got unexpected volume path: %s", vd.volPath)
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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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// Initial setup to test volume plugin
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tmpDir, err := utiltesting.MkTmpdir("vsphereVolumeTest")
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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(), nil /* prober */, volumetest.NewFakeVolumeHost(tmpDir, nil, nil))
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plug, err := plugMgr.FindPluginByName("kubernetes.io/vsphere-volume")
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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 := &v1.Volume{
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Name: "vol1",
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VolumeSource: v1.VolumeSource{
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VsphereVolume: &v1.VsphereVirtualDiskVolumeSource{
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VolumePath: "[local] test-volume-name.vmdk",
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FSType: "ext4",
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},
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},
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}
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// Test Mounter
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fakeManager := &fakePDManager{}
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fakeMounter := &mount.FakeMounter{}
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mounter, err := plug.(*vsphereVolumePlugin).newMounterInternal(volume.NewSpecFromVolume(spec), types.UID("poduid"), fakeManager, fakeMounter)
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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")
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}
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mntPath := path.Join(tmpDir, "pods/poduid/volumes/kubernetes.io~vsphere-volume/vol1")
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path := mounter.GetPath()
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if path != mntPath {
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t.Errorf("Got unexpected path: %s", path)
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}
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if err := mounter.SetUp(nil); err != nil {
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t.Errorf("Expected success, got: %v", err)
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}
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// Test Unmounter
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fakeManager = &fakePDManager{}
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unmounter, err := plug.(*vsphereVolumePlugin).newUnmounterInternal("vol1", types.UID("poduid"), fakeManager, fakeMounter)
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if err != nil {
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t.Errorf("Failed to make a new Unmounter: %v", err)
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}
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if unmounter == nil {
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t.Errorf("Got a nil Unmounter")
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}
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if err := unmounter.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("TearDown() failed: %v", err)
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}
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// Test Provisioner
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options := volume.VolumeOptions{
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PVC: volumetest.CreateTestPVC("100Mi", []v1.PersistentVolumeAccessMode{v1.ReadWriteOnce}),
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PersistentVolumeReclaimPolicy: v1.PersistentVolumeReclaimDelete,
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}
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provisioner, err := plug.(*vsphereVolumePlugin).newProvisionerInternal(options, &fakePDManager{})
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if err != nil {
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t.Errorf("newProvisionerInternal() failed: %v", err)
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}
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persistentSpec, err := provisioner.Provision(nil, nil)
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if err != nil {
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t.Errorf("Provision() failed: %v", err)
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}
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if persistentSpec.Spec.PersistentVolumeSource.VsphereVolume.VolumePath != "[local] test-volume-name.vmdk" {
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t.Errorf("Provision() returned unexpected path %s", persistentSpec.Spec.PersistentVolumeSource.VsphereVolume.VolumePath)
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}
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if persistentSpec.Spec.PersistentVolumeSource.VsphereVolume.StoragePolicyName != "gold" {
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t.Errorf("Provision() returned unexpected storagepolicy name %s", persistentSpec.Spec.PersistentVolumeSource.VsphereVolume.StoragePolicyName)
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}
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cap := persistentSpec.Spec.Capacity[v1.ResourceStorage]
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size := cap.Value()
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if size != 100*1024 {
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t.Errorf("Provision() returned unexpected volume size: %v", size)
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}
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// Test Deleter
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volSpec := &volume.Spec{
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PersistentVolume: persistentSpec,
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}
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deleter, err := plug.(*vsphereVolumePlugin).newDeleterInternal(volSpec, &fakePDManager{})
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if err != nil {
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t.Errorf("newDeleterInternal() failed: %v", err)
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}
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err = deleter.Delete()
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if err != nil {
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t.Errorf("Deleter() failed: %v", err)
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}
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}
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func TestUnsupportedCloudProvider(t *testing.T) {
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// Initial setup to test volume plugin
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tmpDir, err := utiltesting.MkTmpdir("vsphereVolumeTest")
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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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testcases := []struct {
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name string
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cloudProvider cloudprovider.Interface
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success bool
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}{
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{name: "nil cloudprovider", cloudProvider: nil},
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{name: "vSphere", cloudProvider: &vsphere.VSphere{}, success: true},
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{name: "fake cloudprovider", cloudProvider: &fake.FakeCloud{}},
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}
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for _, tc := range testcases {
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t.Logf("test case: %v", tc.name)
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plugMgr := volume.VolumePluginMgr{}
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plugMgr.InitPlugins(ProbeVolumePlugins(), nil, /* prober */
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volumetest.NewFakeVolumeHostWithCloudProvider(tmpDir, nil, nil, tc.cloudProvider))
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plug, err := plugMgr.FindAttachablePluginByName("kubernetes.io/vsphere-volume")
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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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_, err = plug.NewAttacher()
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if !tc.success && err == nil {
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t.Errorf("expected error when creating attacher due to incorrect cloud provider, but got none")
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} else if tc.success && err != nil {
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t.Errorf("expected no error when creating attacher, but got error: %v", err)
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}
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_, err = plug.NewDetacher()
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if !tc.success && err == nil {
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t.Errorf("expected error when creating detacher due to incorrect cloud provider, but got none")
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} else if tc.success && err != nil {
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t.Errorf("expected no error when creating detacher, but got error: %v", err)
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}
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}
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}
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