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266 lines
8.0 KiB
Go
266 lines
8.0 KiB
Go
/*
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Copyright 2018 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 csi
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import (
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"fmt"
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"os"
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"path"
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"path/filepath"
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"testing"
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api "k8s.io/api/core/v1"
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meta "k8s.io/apimachinery/pkg/apis/meta/v1"
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fakeclient "k8s.io/client-go/kubernetes/fake"
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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 TestBlockMapperGetGlobalMapPath(t *testing.T) {
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plug, tmpDir := newTestPlugin(t)
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defer os.RemoveAll(tmpDir)
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// TODO (vladimirvivien) specName with slashes will not work
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testCases := []struct {
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name string
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specVolumeName string
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path string
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}{
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{
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name: "simple specName",
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specVolumeName: "spec-0",
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path: path.Join(tmpDir, fmt.Sprintf("plugins/kubernetes.io/csi/volumeDevices/%s/%s", "spec-0", "dev")),
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},
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{
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name: "specName with dots",
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specVolumeName: "test.spec.1",
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path: path.Join(tmpDir, fmt.Sprintf("plugins/kubernetes.io/csi/volumeDevices/%s/%s", "test.spec.1", "dev")),
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},
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}
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for _, tc := range testCases {
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t.Logf("test case: %s", tc.name)
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pv := makeTestPV(tc.specVolumeName, 10, testDriver, testVol)
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spec := volume.NewSpecFromPersistentVolume(pv, pv.Spec.PersistentVolumeSource.CSI.ReadOnly)
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mapper, err := plug.NewBlockVolumeMapper(
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spec,
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&api.Pod{ObjectMeta: meta.ObjectMeta{UID: testPodUID, Namespace: testns}},
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volume.VolumeOptions{},
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)
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if err != nil {
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t.Fatalf("Failed to make a new Mapper: %v", err)
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}
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csiMapper := mapper.(*csiBlockMapper)
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path, err := csiMapper.GetGlobalMapPath(spec)
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if err != nil {
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t.Errorf("mapper GetGlobalMapPath failed: %v", err)
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}
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if tc.path != path {
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t.Errorf("expecting path %s, got %s", tc.path, path)
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}
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}
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}
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func TestBlockMapperSetupDevice(t *testing.T) {
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plug, tmpDir := newTestPlugin(t)
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defer os.RemoveAll(tmpDir)
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fakeClient := fakeclient.NewSimpleClientset()
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host := volumetest.NewFakeVolumeHostWithNodeName(
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tmpDir,
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fakeClient,
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nil,
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"fakeNode",
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)
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plug.host = host
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pv := makeTestPV("test-pv", 10, testDriver, testVol)
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pvName := pv.GetName()
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nodeName := string(plug.host.GetNodeName())
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spec := volume.NewSpecFromPersistentVolume(pv, pv.Spec.PersistentVolumeSource.CSI.ReadOnly)
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// MapDevice
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mapper, err := plug.NewBlockVolumeMapper(
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spec,
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&api.Pod{ObjectMeta: meta.ObjectMeta{UID: testPodUID, Namespace: testns}},
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volume.VolumeOptions{},
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)
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if err != nil {
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t.Fatalf("failed to create new mapper: %v", err)
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}
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csiMapper := mapper.(*csiBlockMapper)
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csiMapper.csiClient = setupClient(t, true)
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attachID := getAttachmentName(csiMapper.volumeID, csiMapper.driverName, string(nodeName))
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attachment := makeTestAttachment(attachID, nodeName, pvName)
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attachment.Status.Attached = true
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_, err = csiMapper.k8s.StorageV1beta1().VolumeAttachments().Create(attachment)
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if err != nil {
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t.Fatalf("failed to setup VolumeAttachment: %v", err)
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}
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t.Log("created attachement ", attachID)
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devicePath, err := csiMapper.SetUpDevice()
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if err != nil {
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t.Fatalf("mapper failed to SetupDevice: %v", err)
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}
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globalMapPath, err := csiMapper.GetGlobalMapPath(spec)
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if err != nil {
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t.Fatalf("mapper failed to GetGlobalMapPath: %v", err)
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}
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if devicePath != filepath.Join(globalMapPath, "file") {
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t.Fatalf("mapper.SetupDevice returned unexpected path %s instead of %v", devicePath, globalMapPath)
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}
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vols := csiMapper.csiClient.(*fakeCsiDriverClient).nodeClient.GetNodeStagedVolumes()
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if vols[csiMapper.volumeID] != devicePath {
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t.Error("csi server may not have received NodePublishVolume call")
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}
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}
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func TestBlockMapperMapDevice(t *testing.T) {
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plug, tmpDir := newTestPlugin(t)
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defer os.RemoveAll(tmpDir)
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fakeClient := fakeclient.NewSimpleClientset()
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host := volumetest.NewFakeVolumeHostWithNodeName(
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tmpDir,
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fakeClient,
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nil,
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"fakeNode",
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)
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plug.host = host
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pv := makeTestPV("test-pv", 10, testDriver, testVol)
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pvName := pv.GetName()
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nodeName := string(plug.host.GetNodeName())
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spec := volume.NewSpecFromPersistentVolume(pv, pv.Spec.PersistentVolumeSource.CSI.ReadOnly)
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// MapDevice
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mapper, err := plug.NewBlockVolumeMapper(
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spec,
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&api.Pod{ObjectMeta: meta.ObjectMeta{UID: testPodUID, Namespace: testns}},
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volume.VolumeOptions{},
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)
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if err != nil {
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t.Fatalf("failed to create new mapper: %v", err)
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}
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csiMapper := mapper.(*csiBlockMapper)
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csiMapper.csiClient = setupClient(t, true)
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attachID := getAttachmentName(csiMapper.volumeID, csiMapper.driverName, string(nodeName))
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attachment := makeTestAttachment(attachID, nodeName, pvName)
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attachment.Status.Attached = true
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_, err = csiMapper.k8s.StorageV1beta1().VolumeAttachments().Create(attachment)
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if err != nil {
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t.Fatalf("failed to setup VolumeAttachment: %v", err)
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}
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t.Log("created attachement ", attachID)
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devicePath, err := csiMapper.SetUpDevice()
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if err != nil {
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t.Fatalf("mapper failed to SetupDevice: %v", err)
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}
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globalMapPath, err := csiMapper.GetGlobalMapPath(csiMapper.spec)
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if err != nil {
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t.Fatalf("mapper failed to GetGlobalMapPath: %v", err)
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}
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// Map device to global and pod device map path
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volumeMapPath, volName := csiMapper.GetPodDeviceMapPath()
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err = csiMapper.MapDevice(devicePath, globalMapPath, volumeMapPath, volName, csiMapper.podUID)
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if err != nil {
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t.Fatalf("mapper failed to GetGlobalMapPath: %v", err)
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}
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podVolumeBlockFilePath := filepath.Join(volumeMapPath, "file")
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if _, err := os.Stat(podVolumeBlockFilePath); err != nil {
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if os.IsNotExist(err) {
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t.Errorf("mapper.MapDevice failed, volume path not created: %v", err)
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} else {
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t.Errorf("mapper.MapDevice failed: %v", err)
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}
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}
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pubs := csiMapper.csiClient.(*fakeCsiDriverClient).nodeClient.GetNodePublishedVolumes()
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if pubs[csiMapper.volumeID] != podVolumeBlockFilePath {
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t.Error("csi server may not have received NodePublishVolume call")
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}
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}
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func TestBlockMapperTearDownDevice(t *testing.T) {
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plug, tmpDir := newTestPlugin(t)
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defer os.RemoveAll(tmpDir)
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fakeClient := fakeclient.NewSimpleClientset()
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host := volumetest.NewFakeVolumeHostWithNodeName(
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tmpDir,
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fakeClient,
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nil,
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"fakeNode",
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)
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plug.host = host
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pv := makeTestPV("test-pv", 10, testDriver, testVol)
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spec := volume.NewSpecFromPersistentVolume(pv, pv.Spec.PersistentVolumeSource.CSI.ReadOnly)
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// save volume data
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dir := getVolumeDeviceDataDir(pv.ObjectMeta.Name, plug.host)
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if err := os.MkdirAll(dir, 0755); err != nil && !os.IsNotExist(err) {
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t.Errorf("failed to create dir [%s]: %v", dir, err)
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}
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if err := saveVolumeData(
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dir,
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volDataFileName,
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map[string]string{
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volDataKey.specVolID: pv.ObjectMeta.Name,
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volDataKey.driverName: testDriver,
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volDataKey.volHandle: testVol,
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},
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); err != nil {
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t.Fatalf("failed to save volume data: %v", err)
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}
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unmapper, err := plug.NewBlockVolumeUnmapper(pv.ObjectMeta.Name, testPodUID)
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if err != nil {
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t.Fatalf("failed to make a new Unmapper: %v", err)
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}
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csiUnmapper := unmapper.(*csiBlockMapper)
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csiUnmapper.csiClient = setupClient(t, true)
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globalMapPath, err := csiUnmapper.GetGlobalMapPath(spec)
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if err != nil {
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t.Fatalf("unmapper failed to GetGlobalMapPath: %v", err)
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}
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err = csiUnmapper.TearDownDevice(globalMapPath, "/dev/test")
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if err != nil {
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t.Fatal(err)
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}
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// ensure csi client call and node unstaged
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vols := csiUnmapper.csiClient.(*fakeCsiDriverClient).nodeClient.GetNodeStagedVolumes()
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if _, ok := vols[csiUnmapper.volumeID]; ok {
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t.Error("csi server may not have received NodeUnstageVolume call")
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}
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// ensure csi client call and node unpblished
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pubs := csiUnmapper.csiClient.(*fakeCsiDriverClient).nodeClient.GetNodePublishedVolumes()
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if _, ok := pubs[csiUnmapper.volumeID]; ok {
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t.Error("csi server may not have received NodeUnpublishVolume call")
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}
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}
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