mirror of
https://github.com/k3s-io/kubernetes.git
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305 lines
7.4 KiB
Go
305 lines
7.4 KiB
Go
/*
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Copyright 2015 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 flocker
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import (
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"fmt"
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"os"
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"testing"
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flockerapi "github.com/clusterhq/flocker-go"
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"github.com/stretchr/testify/assert"
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"k8s.io/mount-utils"
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v1 "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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"k8s.io/kubernetes/pkg/volume"
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volumetest "k8s.io/kubernetes/pkg/volume/testing"
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)
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const pluginName = "kubernetes.io/flocker"
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const datasetOneID = "11111111-1111-1111-1111-111111111100"
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const nodeOneID = "11111111-1111-1111-1111-111111111111"
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const nodeTwoID = "22222222-2222-2222-2222-222222222222"
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var _ flockerapi.Clientable = &fakeFlockerClient{}
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type fakeFlockerClient struct {
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DatasetID string
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Primary string
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Deleted bool
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Metadata map[string]string
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Nodes []flockerapi.NodeState
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Error error
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}
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func newFakeFlockerClient() *fakeFlockerClient {
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return &fakeFlockerClient{
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DatasetID: datasetOneID,
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Primary: nodeOneID,
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Deleted: false,
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Metadata: map[string]string{"Name": "dataset-one"},
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Nodes: []flockerapi.NodeState{
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{
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Host: "1.2.3.4",
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UUID: nodeOneID,
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},
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{
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Host: "4.5.6.7",
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UUID: nodeTwoID,
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},
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},
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}
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}
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func (c *fakeFlockerClient) CreateDataset(options *flockerapi.CreateDatasetOptions) (*flockerapi.DatasetState, error) {
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if c.Error != nil {
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return nil, c.Error
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}
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return &flockerapi.DatasetState{
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DatasetID: c.DatasetID,
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}, nil
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}
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func (c *fakeFlockerClient) DeleteDataset(datasetID string) error {
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c.DatasetID = datasetID
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c.Deleted = true
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return nil
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}
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func (c *fakeFlockerClient) GetDatasetState(datasetID string) (*flockerapi.DatasetState, error) {
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return &flockerapi.DatasetState{}, nil
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}
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func (c *fakeFlockerClient) GetDatasetID(metaName string) (datasetID string, err error) {
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if val, ok := c.Metadata["Name"]; !ok {
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return val, nil
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}
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return "", fmt.Errorf("no dataset with metadata X found")
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}
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func (c *fakeFlockerClient) GetPrimaryUUID() (primaryUUID string, err error) {
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return
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}
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func (c *fakeFlockerClient) ListNodes() (nodes []flockerapi.NodeState, err error) {
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return c.Nodes, nil
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}
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func (c *fakeFlockerClient) UpdatePrimaryForDataset(primaryUUID, datasetID string) (*flockerapi.DatasetState, error) {
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return &flockerapi.DatasetState{}, nil
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}
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type fakeFlockerUtil struct {
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}
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func (fake *fakeFlockerUtil) CreateVolume(c *flockerVolumeProvisioner) (datasetUUID string, volumeSizeGB int, labels map[string]string, err error) {
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labels = make(map[string]string)
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labels["fakeflockerutil"] = "yes"
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return "test-flocker-volume-uuid", 3, labels, nil
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}
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func (fake *fakeFlockerUtil) DeleteVolume(cd *flockerVolumeDeleter) error {
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if cd.datasetUUID != "test-flocker-volume-uuid" {
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return fmt.Errorf("Deleter got unexpected datasetUUID: %s", cd.datasetUUID)
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}
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return nil
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}
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func newInitializedVolumePlugMgr(t *testing.T) (*volume.VolumePluginMgr, string) {
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plugMgr := &volume.VolumePluginMgr{}
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dir, err := utiltesting.MkTmpdir("flocker")
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assert.NoError(t, err)
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plugMgr.InitPlugins(ProbeVolumePlugins(), nil /* prober */, volumetest.NewFakeVolumeHost(t, dir, nil, nil))
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return plugMgr, dir
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}
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func TestPlugin(t *testing.T) {
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tmpDir, err := utiltesting.MkTmpdir("flockerTest")
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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(t, tmpDir, nil, nil))
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plug, err := plugMgr.FindPluginByName("kubernetes.io/flocker")
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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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Flocker: &v1.FlockerVolumeSource{
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DatasetUUID: "uuid1",
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},
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},
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}
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fakeManager := &fakeFlockerUtil{}
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fakeMounter := mount.NewFakeMounter(nil)
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mounter, err := plug.(*flockerPlugin).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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}
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func TestGetByName(t *testing.T) {
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assert := assert.New(t)
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plugMgr, dir := newInitializedVolumePlugMgr(t)
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defer os.RemoveAll(dir)
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plug, err := plugMgr.FindPluginByName(pluginName)
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assert.NotNil(plug, "Can't find the plugin by name")
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assert.NoError(err)
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}
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func TestCanSupport(t *testing.T) {
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assert := assert.New(t)
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plugMgr, dir := newInitializedVolumePlugMgr(t)
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defer os.RemoveAll(dir)
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plug, err := plugMgr.FindPluginByName(pluginName)
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assert.NoError(err)
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specs := map[*volume.Spec]bool{
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{
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Volume: &v1.Volume{
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VolumeSource: v1.VolumeSource{
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Flocker: &v1.FlockerVolumeSource{},
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},
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},
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}: true,
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{
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PersistentVolume: &v1.PersistentVolume{
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Spec: v1.PersistentVolumeSpec{
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PersistentVolumeSource: v1.PersistentVolumeSource{
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Flocker: &v1.FlockerVolumeSource{},
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},
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},
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},
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}: true,
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{
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Volume: &v1.Volume{
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VolumeSource: v1.VolumeSource{},
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},
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}: false,
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}
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for spec, expected := range specs {
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actual := plug.CanSupport(spec)
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assert.Equal(expected, actual)
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}
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}
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func TestGetFlockerVolumeSource(t *testing.T) {
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assert := assert.New(t)
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p := flockerPlugin{}
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spec := &volume.Spec{
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Volume: &v1.Volume{
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VolumeSource: v1.VolumeSource{
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Flocker: &v1.FlockerVolumeSource{},
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},
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},
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}
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vs, ro := p.getFlockerVolumeSource(spec)
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assert.False(ro)
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assert.Equal(spec.Volume.Flocker, vs)
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spec = &volume.Spec{
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PersistentVolume: &v1.PersistentVolume{
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Spec: v1.PersistentVolumeSpec{
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PersistentVolumeSource: v1.PersistentVolumeSource{
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Flocker: &v1.FlockerVolumeSource{},
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},
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},
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},
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}
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vs, ro = p.getFlockerVolumeSource(spec)
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assert.False(ro)
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assert.Equal(spec.PersistentVolume.Spec.Flocker, vs)
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}
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func TestNewMounterDatasetName(t *testing.T) {
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assert := assert.New(t)
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plugMgr, dir := newInitializedVolumePlugMgr(t)
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defer os.RemoveAll(dir)
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plug, err := plugMgr.FindPluginByName(pluginName)
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assert.NoError(err)
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spec := &volume.Spec{
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Volume: &v1.Volume{
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VolumeSource: v1.VolumeSource{
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Flocker: &v1.FlockerVolumeSource{
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DatasetName: "something",
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},
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},
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},
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}
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_, err = plug.NewMounter(spec, &v1.Pod{}, volume.VolumeOptions{})
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assert.NoError(err)
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}
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func TestNewMounterDatasetUUID(t *testing.T) {
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assert := assert.New(t)
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plugMgr, dir := newInitializedVolumePlugMgr(t)
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defer os.RemoveAll(dir)
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plug, err := plugMgr.FindPluginByName(pluginName)
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assert.NoError(err)
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spec := &volume.Spec{
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Volume: &v1.Volume{
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VolumeSource: v1.VolumeSource{
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Flocker: &v1.FlockerVolumeSource{
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DatasetUUID: "uuid1",
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},
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},
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},
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}
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mounter, err := plug.NewMounter(spec, &v1.Pod{}, volume.VolumeOptions{})
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assert.NoError(err)
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assert.NotNil(mounter, "got a nil mounter")
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}
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func TestNewUnmounter(t *testing.T) {
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t.Skip("broken")
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assert := assert.New(t)
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p := flockerPlugin{}
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unmounter, err := p.NewUnmounter("", types.UID(""))
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assert.Nil(unmounter)
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assert.NoError(err)
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}
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func TestIsReadOnly(t *testing.T) {
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b := &flockerVolumeMounter{readOnly: true}
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assert.True(t, b.GetAttributes().ReadOnly)
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}
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