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Copy pathcsi_plugin_test.go
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csi_plugin_test.go
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/*
Copyright 2017 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package csi
import (
"fmt"
"math/rand"
"os"
"path/filepath"
"testing"
"time"
api "k8s.io/api/core/v1"
storage "k8s.io/api/storage/v1"
meta "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/types"
utilversion "k8s.io/apimachinery/pkg/util/version"
"k8s.io/apimachinery/pkg/util/wait"
utilfeature "k8s.io/apiserver/pkg/util/feature"
"k8s.io/client-go/informers"
fakeclient "k8s.io/client-go/kubernetes/fake"
utiltesting "k8s.io/client-go/util/testing"
featuregatetesting "k8s.io/component-base/featuregate/testing"
"k8s.io/kubernetes/pkg/features"
"k8s.io/kubernetes/pkg/volume"
volumetest "k8s.io/kubernetes/pkg/volume/testing"
)
const (
volumeHostType int = iota
kubeletVolumeHostType
attachDetachVolumeHostType
)
func newTestPlugin(t *testing.T, client *fakeclient.Clientset) (*csiPlugin, string) {
return newTestPluginWithVolumeHost(t, client, kubeletVolumeHostType)
}
func newTestPluginWithAttachDetachVolumeHost(t *testing.T, client *fakeclient.Clientset) (*csiPlugin, string) {
return newTestPluginWithVolumeHost(t, client, attachDetachVolumeHostType)
}
// create a plugin mgr to load plugins and setup a fake client
func newTestPluginWithVolumeHost(t *testing.T, client *fakeclient.Clientset, hostType int) (*csiPlugin, string) {
tmpDir, err := utiltesting.MkTmpdir("csi-test")
if err != nil {
t.Fatalf("can't create temp dir: %v", err)
}
if client == nil {
client = fakeclient.NewSimpleClientset()
}
client.Tracker().Add(&api.Node{
ObjectMeta: meta.ObjectMeta{
Name: "fakeNode",
},
Spec: api.NodeSpec{},
})
// Start informer for CSIDrivers.
factory := informers.NewSharedInformerFactory(client, CsiResyncPeriod)
csiDriverInformer := factory.Storage().V1().CSIDrivers()
csiDriverLister := csiDriverInformer.Lister()
volumeAttachmentInformer := factory.Storage().V1().VolumeAttachments()
volumeAttachmentLister := volumeAttachmentInformer.Lister()
factory.Start(wait.NeverStop)
syncedTypes := factory.WaitForCacheSync(wait.NeverStop)
if len(syncedTypes) != 2 {
t.Fatalf("informers are not synced")
}
for ty, ok := range syncedTypes {
if !ok {
t.Fatalf("failed to sync: %#v", ty)
}
}
var host volume.VolumeHost
switch hostType {
case volumeHostType:
host = volumetest.NewFakeVolumeHostWithCSINodeName(t,
tmpDir,
client,
ProbeVolumePlugins(),
"fakeNode",
csiDriverLister,
nil,
)
case kubeletVolumeHostType:
host = volumetest.NewFakeKubeletVolumeHostWithCSINodeName(t,
tmpDir,
client,
ProbeVolumePlugins(),
"fakeNode",
csiDriverLister,
volumeAttachmentLister,
)
case attachDetachVolumeHostType:
host = volumetest.NewFakeAttachDetachVolumeHostWithCSINodeName(t,
tmpDir,
client,
ProbeVolumePlugins(),
"fakeNode",
csiDriverLister,
volumeAttachmentLister,
)
default:
t.Fatalf("Unsupported volume host type")
}
fakeHost, ok := host.(volumetest.FakeVolumeHost)
if !ok {
t.Fatalf("Unsupported volume host type")
}
pluginMgr := fakeHost.GetPluginMgr()
plug, err := pluginMgr.FindPluginByName(CSIPluginName)
if err != nil {
t.Fatalf("can't find plugin %v", CSIPluginName)
}
csiPlug, ok := plug.(*csiPlugin)
if !ok {
t.Fatalf("cannot assert plugin to be type csiPlugin")
}
return csiPlug, tmpDir
}
func registerFakePlugin(pluginName, endpoint string, versions []string, t *testing.T) {
highestSupportedVersions, err := utilversion.HighestSupportedVersion(versions)
if err != nil {
t.Fatalf("unexpected error parsing versions (%v) for pluginName %q endpoint %q: %#v", versions, pluginName, endpoint, err)
}
csiDrivers.Clear()
csiDrivers.Set(pluginName, Driver{
endpoint: endpoint,
highestSupportedVersion: highestSupportedVersions,
})
}
func TestPluginGetPluginName(t *testing.T) {
plug, tmpDir := newTestPlugin(t, nil)
defer os.RemoveAll(tmpDir)
if plug.GetPluginName() != "kubernetes.io/csi" {
t.Errorf("unexpected plugin name %v", plug.GetPluginName())
}
}
func TestPluginGetVolumeName(t *testing.T) {
plug, tmpDir := newTestPlugin(t, nil)
defer os.RemoveAll(tmpDir)
testCases := []struct {
name string
driverName string
volName string
spec *volume.Spec
shouldFail bool
}{
{
name: "alphanum names",
driverName: "testdr",
volName: "testvol",
spec: volume.NewSpecFromPersistentVolume(makeTestPV("test-pv", 10, "testdr", "testvol"), false),
},
{
name: "mixchar driver",
driverName: "test.dr.cc",
volName: "testvol",
spec: volume.NewSpecFromPersistentVolume(makeTestPV("test-pv", 10, "test.dr.cc", "testvol"), false),
},
{
name: "mixchar volume",
driverName: "testdr",
volName: "test-vol-name",
spec: volume.NewSpecFromPersistentVolume(makeTestPV("test-pv", 10, "testdr", "test-vol-name"), false),
},
{
name: "mixchars all",
driverName: "test-driver",
volName: "test.vol.name",
spec: volume.NewSpecFromPersistentVolume(makeTestPV("test-pv", 10, "test-driver", "test.vol.name"), false),
},
{
name: "volume source with mixchars all",
driverName: "test-driver",
volName: "test.vol.name",
spec: volume.NewSpecFromVolume(makeTestVol("test-pv", "test-driver")),
shouldFail: true, // csi inline feature off
},
{
name: "missing spec",
shouldFail: true,
},
}
for _, tc := range testCases {
t.Logf("testing: %s", tc.name)
registerFakePlugin(tc.driverName, "endpoint", []string{"1.3.0"}, t)
name, err := plug.GetVolumeName(tc.spec)
if tc.shouldFail != (err != nil) {
t.Fatal("shouldFail does match expected error")
}
if tc.shouldFail && err != nil {
t.Log(err)
continue
}
if name != fmt.Sprintf("%s%s%s", tc.driverName, volNameSep, tc.volName) {
t.Errorf("unexpected volume name %s", name)
}
}
}
func TestPluginGetVolumeNameWithInline(t *testing.T) {
modes := []storage.VolumeLifecycleMode{
storage.VolumeLifecyclePersistent,
}
driver := getTestCSIDriver(testDriver, nil, nil, modes)
client := fakeclient.NewSimpleClientset(driver)
plug, tmpDir := newTestPlugin(t, client)
defer os.RemoveAll(tmpDir)
testCases := []struct {
name string
driverName string
volName string
shouldFail bool
spec *volume.Spec
}{
{
name: "missing spec",
shouldFail: true,
},
{
name: "alphanum names for pv",
driverName: "testdr",
volName: "testvol",
spec: volume.NewSpecFromPersistentVolume(makeTestPV("test-pv", 10, "testdr", "testvol"), false),
},
{
name: "alphanum names for vol source",
driverName: "testdr",
volName: "testvol",
spec: volume.NewSpecFromVolume(makeTestVol("test-pv", "testdr")),
shouldFail: true,
},
}
for _, tc := range testCases {
t.Logf("testing: %s", tc.name)
registerFakePlugin(tc.driverName, "endpoint", []string{"1.3.0"}, t)
name, err := plug.GetVolumeName(tc.spec)
if tc.shouldFail != (err != nil) {
t.Fatal("shouldFail does match expected error")
}
if tc.shouldFail && err != nil {
t.Log(err)
continue
}
if name != fmt.Sprintf("%s%s%s", tc.driverName, volNameSep, tc.volName) {
t.Errorf("unexpected volume name %s", name)
}
}
}
func TestPluginCanSupport(t *testing.T) {
tests := []struct {
name string
spec *volume.Spec
canSupport bool
}{
{
name: "no spec provided",
canSupport: false,
},
{
name: "can support volume source",
spec: volume.NewSpecFromVolume(makeTestVol("test-vol", testDriver)),
canSupport: true,
},
{
name: "can support persistent volume source",
spec: volume.NewSpecFromPersistentVolume(makeTestPV("test-pv", 20, testDriver, testVol), true),
canSupport: true,
},
}
plug, tmpDir := newTestPlugin(t, nil)
defer os.RemoveAll(tmpDir)
registerFakePlugin(testDriver, "endpoint", []string{"1.0.0"}, t)
for _, tc := range tests {
t.Run(tc.name, func(t *testing.T) {
actual := plug.CanSupport(tc.spec)
if tc.canSupport != actual {
t.Errorf("expecting canSupport %t, got %t", tc.canSupport, actual)
}
})
}
}
func TestPluginConstructVolumeSpec(t *testing.T) {
plug, tmpDir := newTestPlugin(t, nil)
defer os.RemoveAll(tmpDir)
testCases := []struct {
name string
seLinuxMountEnabled bool
originSpec *volume.Spec
originSELinuxMountContext string
specVolID string
volHandle string
expectedSELinuxContext string
podUID types.UID
}{
{
name: "construct spec1 from original persistent spec",
specVolID: "test.vol.id",
volHandle: "testvol-handle1",
originSpec: volume.NewSpecFromPersistentVolume(makeTestPV("test.vol.id", 20, testDriver, "testvol-handle1"), true),
podUID: types.UID(fmt.Sprintf("%08X", rand.Uint64())),
},
{
name: "construct spec2 from original persistent spec",
specVolID: "spec2",
volHandle: "handle2",
originSpec: volume.NewSpecFromPersistentVolume(makeTestPV("spec2", 20, testDriver, "handle2"), true),
podUID: types.UID(fmt.Sprintf("%08X", rand.Uint64())),
},
{
name: "construct SELinux context from original persistent spec when the feature is enabled",
seLinuxMountEnabled: true,
specVolID: "spec3",
volHandle: "handle3",
originSELinuxMountContext: "system_u:object_r:container_file_t:s0:c314,c894",
originSpec: volume.NewSpecFromPersistentVolume(makeTestPV("spec3", 20, testDriver, "handle3"), true),
expectedSELinuxContext: "system_u:object_r:container_file_t:s0:c314,c894",
podUID: types.UID(fmt.Sprintf("%08X", rand.Uint64())),
},
{
name: "construct empty SELinux from original persistent spec when the feature is disabled",
seLinuxMountEnabled: false,
specVolID: "spec4",
volHandle: "handle4",
originSELinuxMountContext: "system_u:object_r:container_file_t:s0:c314,c894",
originSpec: volume.NewSpecFromPersistentVolume(makeTestPV("spec4", 20, testDriver, "handle4"), true),
expectedSELinuxContext: "", // The context is cleared when the feature gate is off
podUID: types.UID(fmt.Sprintf("%08X", rand.Uint64())),
},
}
registerFakePlugin(testDriver, "endpoint", []string{"1.0.0"}, t)
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
featuregatetesting.SetFeatureGateDuringTest(t, utilfeature.DefaultFeatureGate, features.SELinuxMountReadWriteOncePod, tc.seLinuxMountEnabled)
mounter, err := plug.NewMounter(
tc.originSpec,
&api.Pod{ObjectMeta: meta.ObjectMeta{UID: tc.podUID, Namespace: testns}},
)
if err != nil {
t.Fatal(err)
}
if mounter == nil {
t.Fatal("failed to create CSI mounter")
}
csiMounter := mounter.(*csiMountMgr)
mountPath := filepath.Dir(csiMounter.GetPath())
err = prepareVolumeInfoFile(mountPath, plug, tc.originSpec.Name(), csiMounter.volumeID, testDriver, string(csiMounter.volumeLifecycleMode), tc.originSELinuxMountContext)
if err != nil {
t.Fatalf("failed to save fake volume info file: %s", err)
}
// rebuild spec
rec, err := plug.ConstructVolumeSpec("test-pv", filepath.Dir(csiMounter.GetPath()))
if err != nil {
t.Fatal(err)
}
if rec.Spec == nil {
t.Fatal("nil volume.Spec constructed")
}
// inspect spec
if rec.Spec.PersistentVolume == nil || rec.Spec.PersistentVolume.Spec.CSI == nil {
t.Fatal("CSIPersistentVolume not found in constructed spec ")
}
volHandle := rec.Spec.PersistentVolume.Spec.CSI.VolumeHandle
if volHandle != tc.originSpec.PersistentVolume.Spec.CSI.VolumeHandle {
t.Error("unexpected volumeHandle constructed:", volHandle)
}
driverName := rec.Spec.PersistentVolume.Spec.CSI.Driver
if driverName != tc.originSpec.PersistentVolume.Spec.CSI.Driver {
t.Error("unexpected driverName constructed:", driverName)
}
if rec.Spec.PersistentVolume.Spec.VolumeMode == nil {
t.Fatalf("Volume mode has not been set.")
}
if *rec.Spec.PersistentVolume.Spec.VolumeMode != api.PersistentVolumeFilesystem {
t.Errorf("Unexpected volume mode %q", *rec.Spec.PersistentVolume.Spec.VolumeMode)
}
if rec.Spec.Name() != tc.specVolID {
t.Errorf("Unexpected spec name constructed %s", rec.Spec.Name())
}
if rec.SELinuxMountContext != tc.expectedSELinuxContext {
t.Errorf("Expected SELinux context %q, got %q", tc.expectedSELinuxContext, rec.SELinuxMountContext)
}
})
}
}
func TestPluginConstructVolumeSpecWithInline(t *testing.T) {
testCases := []struct {
name string
originSpec *volume.Spec
specVolID string
volHandle string
podUID types.UID
shouldFail bool
modes []storage.VolumeLifecycleMode
}{
{
name: "construct spec1 from persistent spec",
specVolID: "test.vol.id",
volHandle: "testvol-handle1",
originSpec: volume.NewSpecFromPersistentVolume(makeTestPV("test.vol.id", 20, testDriver, "testvol-handle1"), true),
podUID: types.UID(fmt.Sprintf("%08X", rand.Uint64())),
modes: []storage.VolumeLifecycleMode{storage.VolumeLifecyclePersistent},
},
{
name: "construct spec2 from persistent spec",
specVolID: "spec2",
volHandle: "handle2",
originSpec: volume.NewSpecFromPersistentVolume(makeTestPV("spec2", 20, testDriver, "handle2"), true),
podUID: types.UID(fmt.Sprintf("%08X", rand.Uint64())),
modes: []storage.VolumeLifecycleMode{storage.VolumeLifecyclePersistent},
},
{
name: "construct spec2 from persistent spec, missing mode",
specVolID: "spec2",
volHandle: "handle2",
originSpec: volume.NewSpecFromPersistentVolume(makeTestPV("spec2", 20, testDriver, "handle2"), true),
podUID: types.UID(fmt.Sprintf("%08X", rand.Uint64())),
modes: []storage.VolumeLifecycleMode{},
shouldFail: true,
},
{
name: "construct spec from volume spec",
specVolID: "volspec",
originSpec: volume.NewSpecFromVolume(makeTestVol("volspec", testDriver)),
podUID: types.UID(fmt.Sprintf("%08X", rand.Uint64())),
modes: []storage.VolumeLifecycleMode{storage.VolumeLifecycleEphemeral},
},
{
name: "construct spec from volume spec2",
specVolID: "volspec2",
originSpec: volume.NewSpecFromVolume(makeTestVol("volspec2", testDriver)),
podUID: types.UID(fmt.Sprintf("%08X", rand.Uint64())),
modes: []storage.VolumeLifecycleMode{storage.VolumeLifecycleEphemeral},
},
{
name: "construct spec from volume spec2, missing mode",
specVolID: "volspec2",
originSpec: volume.NewSpecFromVolume(makeTestVol("volspec2", testDriver)),
podUID: types.UID(fmt.Sprintf("%08X", rand.Uint64())),
modes: []storage.VolumeLifecycleMode{},
shouldFail: true,
},
{
name: "missing spec",
podUID: types.UID(fmt.Sprintf("%08X", rand.Uint64())),
shouldFail: true,
},
}
registerFakePlugin(testDriver, "endpoint", []string{"1.0.0"}, t)
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
driver := getTestCSIDriver(testDriver, nil, nil, tc.modes)
client := fakeclient.NewSimpleClientset(driver)
plug, tmpDir := newTestPlugin(t, client)
defer os.RemoveAll(tmpDir)
mounter, err := plug.NewMounter(
tc.originSpec,
&api.Pod{ObjectMeta: meta.ObjectMeta{UID: tc.podUID, Namespace: testns}},
)
if tc.shouldFail && err != nil {
t.Log(err)
return
}
if !tc.shouldFail && err != nil {
t.Fatal(err)
}
if mounter == nil {
t.Fatal("failed to create CSI mounter")
}
csiMounter := mounter.(*csiMountMgr)
mountPath := filepath.Dir(csiMounter.GetPath())
err = prepareVolumeInfoFile(mountPath, plug, tc.originSpec.Name(), csiMounter.volumeID, testDriver, string(csiMounter.volumeLifecycleMode), "")
if err != nil {
t.Fatalf("failed to save fake volume info file: %s", err)
}
// rebuild spec
rec, err := plug.ConstructVolumeSpec("test-pv", filepath.Dir(csiMounter.GetPath()))
if err != nil {
t.Fatal(err)
}
if rec.Spec == nil {
t.Fatal("nil volume.Spec constructed")
}
if rec.Spec.Name() != tc.specVolID {
t.Errorf("unexpected spec name constructed volume.Spec: %s", rec.Spec.Name())
}
switch {
case rec.Spec.Volume != nil:
if rec.Spec.Volume.CSI == nil {
t.Error("missing CSIVolumeSource in constructed volume.Spec")
}
if rec.Spec.Volume.CSI.Driver != tc.originSpec.Volume.CSI.Driver {
t.Error("unexpected driver in constructed volume source:", rec.Spec.Volume.CSI.Driver)
}
case rec.Spec.PersistentVolume != nil:
if rec.Spec.PersistentVolume.Spec.CSI == nil {
t.Fatal("missing CSIPersistentVolumeSource in constructed volume.spec")
}
volHandle := rec.Spec.PersistentVolume.Spec.CSI.VolumeHandle
if volHandle != tc.originSpec.PersistentVolume.Spec.CSI.VolumeHandle {
t.Error("unexpected volumeHandle constructed in persistent volume source:", volHandle)
}
driverName := rec.Spec.PersistentVolume.Spec.CSI.Driver
if driverName != tc.originSpec.PersistentVolume.Spec.CSI.Driver {
t.Error("unexpected driverName constructed in persistent volume source:", driverName)
}
if rec.Spec.PersistentVolume.Spec.VolumeMode == nil {
t.Fatalf("Volume mode has not been set.")
}
if *rec.Spec.PersistentVolume.Spec.VolumeMode != api.PersistentVolumeFilesystem {
t.Errorf("Unexpected volume mode %q", *rec.Spec.PersistentVolume.Spec.VolumeMode)
}
default:
t.Fatal("invalid volume.Spec constructed")
}
})
}
}
func TestPluginNewMounter(t *testing.T) {
tests := []struct {
name string
spec *volume.Spec
podUID types.UID
namespace string
volumeLifecycleMode storage.VolumeLifecycleMode
shouldFail bool
}{
{
name: "mounter from persistent volume source",
spec: volume.NewSpecFromPersistentVolume(makeTestPV("test-pv1", 20, testDriver, testVol), true),
podUID: types.UID(fmt.Sprintf("%08X", rand.Uint64())),
namespace: "test-ns1",
volumeLifecycleMode: storage.VolumeLifecyclePersistent,
},
{
name: "mounter from volume source",
spec: volume.NewSpecFromVolume(makeTestVol("test-vol1", testDriver)),
podUID: types.UID(fmt.Sprintf("%08X", rand.Uint64())),
namespace: "test-ns2",
volumeLifecycleMode: storage.VolumeLifecycleEphemeral,
shouldFail: false, // NewMounter works with disabled inline volumes
},
{
name: "mounter from no spec provided",
shouldFail: true,
},
}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
plug, tmpDir := newTestPlugin(t, nil)
defer os.RemoveAll(tmpDir)
registerFakePlugin(testDriver, "endpoint", []string{"1.2.0"}, t)
mounter, err := plug.NewMounter(
test.spec,
&api.Pod{ObjectMeta: meta.ObjectMeta{UID: test.podUID, Namespace: test.namespace}},
)
if test.shouldFail != (err != nil) {
t.Fatal("Unexpected error:", err)
}
if test.shouldFail && err != nil {
t.Log(err)
return
}
if mounter == nil {
t.Fatal("failed to create CSI mounter")
}
csiMounter := mounter.(*csiMountMgr)
// validate mounter fields
if string(csiMounter.driverName) != testDriver {
t.Error("mounter driver name not set")
}
if csiMounter.volumeID == "" {
t.Error("mounter volume id not set")
}
if csiMounter.pod == nil {
t.Error("mounter pod not set")
}
if string(csiMounter.podUID) != string(test.podUID) {
t.Error("mounter podUID not set")
}
csiClient, err := csiMounter.csiClientGetter.Get()
if csiClient == nil {
t.Errorf("mounter csiClient is nil: %v", err)
}
if err != nil {
t.Fatal(err)
}
if csiMounter.volumeLifecycleMode != test.volumeLifecycleMode {
t.Error("unexpected driver mode:", csiMounter.volumeLifecycleMode)
}
})
}
}
func TestPluginNewMounterWithInline(t *testing.T) {
bothModes := []storage.VolumeLifecycleMode{
storage.VolumeLifecycleEphemeral,
storage.VolumeLifecyclePersistent,
}
persistentMode := []storage.VolumeLifecycleMode{
storage.VolumeLifecyclePersistent,
}
ephemeralMode := []storage.VolumeLifecycleMode{
storage.VolumeLifecycleEphemeral,
}
tests := []struct {
name string
spec *volume.Spec
podUID types.UID
namespace string
volumeLifecycleMode storage.VolumeLifecycleMode
shouldFail bool
}{
{
name: "mounter with missing spec",
shouldFail: true,
},
{
name: "mounter with spec with both volSrc and pvSrc",
spec: &volume.Spec{
Volume: makeTestVol("test-vol1", testDriver),
PersistentVolume: makeTestPV("test-pv1", 20, testDriver, testVol),
ReadOnly: true,
},
shouldFail: true,
},
{
name: "mounter with persistent volume source",
spec: volume.NewSpecFromPersistentVolume(makeTestPV("test-pv1", 20, testDriver, testVol), true),
podUID: types.UID(fmt.Sprintf("%08X", rand.Uint64())),
namespace: "test-ns1",
volumeLifecycleMode: storage.VolumeLifecyclePersistent,
},
{
name: "mounter with volume source",
spec: volume.NewSpecFromVolume(makeTestVol("test-vol1", testDriver)),
podUID: types.UID(fmt.Sprintf("%08X", rand.Uint64())),
namespace: "test-ns2",
volumeLifecycleMode: storage.VolumeLifecycleEphemeral,
},
}
runAll := func(t *testing.T, supported []storage.VolumeLifecycleMode) {
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
driver := getTestCSIDriver(testDriver, nil, nil, supported)
fakeClient := fakeclient.NewSimpleClientset(driver)
plug, tmpDir := newTestPlugin(t, fakeClient)
defer os.RemoveAll(tmpDir)
registerFakePlugin(testDriver, "endpoint", []string{"1.2.0"}, t)
mounter, err := plug.NewMounter(
test.spec,
&api.Pod{ObjectMeta: meta.ObjectMeta{UID: test.podUID, Namespace: test.namespace}},
)
// Some test cases are meant to fail because their input data is broken.
shouldFail := test.shouldFail
if shouldFail != (err != nil) {
t.Fatal("Unexpected error:", err)
}
if shouldFail && err != nil {
t.Log(err)
return
}
if mounter == nil {
t.Fatal("failed to create CSI mounter")
}
csiMounter := mounter.(*csiMountMgr)
// validate mounter fields
if string(csiMounter.driverName) != testDriver {
t.Error("mounter driver name not set")
}
if csiMounter.volumeID == "" {
t.Error("mounter volume id not set")
}
if csiMounter.pod == nil {
t.Error("mounter pod not set")
}
if string(csiMounter.podUID) != string(test.podUID) {
t.Error("mounter podUID not set")
}
csiClient, err := csiMounter.csiClientGetter.Get()
if csiClient == nil {
t.Errorf("mounter csiClient is nil: %v", err)
}
if csiMounter.volumeLifecycleMode != test.volumeLifecycleMode {
t.Error("unexpected driver mode:", csiMounter.volumeLifecycleMode)
}
})
}
}
t.Run("both supported", func(t *testing.T) {
runAll(t, bothModes)
})
t.Run("persistent supported", func(t *testing.T) {
runAll(t, persistentMode)
})
t.Run("ephemeral supported", func(t *testing.T) {
runAll(t, ephemeralMode)
})
}
func TestPluginNewUnmounter(t *testing.T) {
plug, tmpDir := newTestPlugin(t, nil)
defer os.RemoveAll(tmpDir)
registerFakePlugin(testDriver, "endpoint", []string{"1.0.0"}, t)
pv := makeTestPV("test-pv", 10, testDriver, testVol)
// save the data file to re-create client
dir := filepath.Join(getTargetPath(testPodUID, pv.ObjectMeta.Name, plug.host), "/mount")
if err := os.MkdirAll(dir, 0755); err != nil && !os.IsNotExist(err) {
t.Errorf("failed to create dir [%s]: %v", dir, err)
}
if err := saveVolumeData(
filepath.Dir(dir),
volDataFileName,
map[string]string{
volDataKey.specVolID: pv.ObjectMeta.Name,
volDataKey.driverName: testDriver,
volDataKey.volHandle: testVol,
},
); err != nil {
t.Fatalf("failed to save volume data: %v", err)
}
// test unmounter
unmounter, err := plug.NewUnmounter(pv.ObjectMeta.Name, testPodUID)
csiUnmounter := unmounter.(*csiMountMgr)
if err != nil {
t.Fatalf("Failed to make a new Unmounter: %v", err)
}
if csiUnmounter == nil {
t.Fatal("failed to create CSI Unmounter")
}
if csiUnmounter.podUID != testPodUID {
t.Error("podUID not set")
}
csiClient, err := csiUnmounter.csiClientGetter.Get()
if csiClient == nil {
t.Errorf("mounter csiClient is nil: %v", err)
}
}
func TestPluginNewAttacher(t *testing.T) {
plug, tmpDir := newTestPlugin(t, nil)
defer os.RemoveAll(tmpDir)
attacher, err := plug.NewAttacher()
if err != nil {
t.Fatalf("failed to create new attacher: %v", err)
}
csiAttacher := getCsiAttacherFromVolumeAttacher(attacher, testWatchTimeout)
if csiAttacher.plugin == nil {
t.Error("plugin not set for attacher")
}
if csiAttacher.k8s == nil {
t.Error("Kubernetes client not set for attacher")
}
if csiAttacher.watchTimeout == time.Duration(0) {
t.Error("watch timeout not set for attacher")
}
}
func TestPluginNewDetacher(t *testing.T) {
plug, tmpDir := newTestPlugin(t, nil)
defer os.RemoveAll(tmpDir)
detacher, err := plug.NewDetacher()
if err != nil {
t.Fatalf("failed to create new detacher: %v", err)
}
csiDetacher := getCsiAttacherFromVolumeDetacher(detacher, testWatchTimeout)
if csiDetacher.plugin == nil {
t.Error("plugin not set for detacher")
}
if csiDetacher.k8s == nil {
t.Error("Kubernetes client not set for detacher")
}
if csiDetacher.watchTimeout == time.Duration(0) {
t.Error("watch timeout not set for detacher")
}
}
func TestPluginCanAttach(t *testing.T) {
tests := []struct {
name string
driverName string
spec *volume.Spec
canAttach bool
shouldFail bool
}{
{
name: "non-attachable inline",
driverName: "attachable-inline",
spec: volume.NewSpecFromVolume(makeTestVol("test-vol", "attachable-inline")),
canAttach: false,
},
{
name: "attachable PV",
driverName: "attachable-pv",
spec: volume.NewSpecFromPersistentVolume(makeTestPV("test-vol", 20, "attachable-pv", testVol), true),
canAttach: true,
},
{
name: "incomplete spec",
driverName: "attachable-pv",
spec: &volume.Spec{ReadOnly: true},
canAttach: false,
shouldFail: true,
},
{
name: "nil spec",
driverName: "attachable-pv",
canAttach: false,
shouldFail: true,
},
}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
csiDriver := getTestCSIDriver(test.driverName, nil, &test.canAttach, nil)
fakeCSIClient := fakeclient.NewSimpleClientset(csiDriver)
plug, tmpDir := newTestPlugin(t, fakeCSIClient)
defer os.RemoveAll(tmpDir)
pluginCanAttach, err := plug.CanAttach(test.spec)
if err != nil && !test.shouldFail {
t.Fatalf("unexpected plugin.CanAttach error: %s", err)
}
if pluginCanAttach != test.canAttach {
t.Fatalf("expecting plugin.CanAttach %t got %t", test.canAttach, pluginCanAttach)
}
})
}
}
func TestPluginFindAttachablePlugin(t *testing.T) {
tests := []struct {
name string
driverName string
spec *volume.Spec
canAttach bool
shouldFail bool
}{
{
name: "non-attachable inline",
driverName: "attachable-inline",
spec: volume.NewSpecFromVolume(makeTestVol("test-vol", "attachable-inline")),
canAttach: false,
},
{
name: "attachable PV",
driverName: "attachable-pv",
spec: volume.NewSpecFromPersistentVolume(makeTestPV("test-vol", 20, "attachable-pv", testVol), true),
canAttach: true,
},
{
name: "incomplete spec",
driverName: "attachable-pv",
spec: &volume.Spec{ReadOnly: true},
canAttach: false,
shouldFail: true,
},
{
name: "nil spec",
driverName: "attachable-pv",
canAttach: false,
shouldFail: true,
},
}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
tmpDir, err := utiltesting.MkTmpdir("csi-test")
if err != nil {
t.Fatalf("can't create temp dir: %v", err)
}
defer os.RemoveAll(tmpDir)
client := fakeclient.NewSimpleClientset(
getTestCSIDriver(test.driverName, nil, &test.canAttach, nil),
&api.Node{
ObjectMeta: meta.ObjectMeta{
Name: "fakeNode",
},
Spec: api.NodeSpec{},
},
)
factory := informers.NewSharedInformerFactory(client, CsiResyncPeriod)
host := volumetest.NewFakeKubeletVolumeHostWithCSINodeName(t,
tmpDir,
client,
ProbeVolumePlugins(),
"fakeNode",
factory.Storage().V1().CSIDrivers().Lister(),
factory.Storage().V1().VolumeAttachments().Lister(),
)
plugMgr := host.GetPluginMgr()
plugin, err := plugMgr.FindAttachablePluginBySpec(test.spec)
if err != nil && !test.shouldFail {
t.Fatalf("unexpected error calling pluginMgr.FindAttachablePluginBySpec: %s", err)
}
if (plugin != nil) != test.canAttach {
t.Fatal("expecting attachable plugin, but got nil")
}
})
}
}
func TestPluginCanDeviceMount(t *testing.T) {
tests := []struct {
name string
driverName string
spec *volume.Spec
canDeviceMount bool
shouldFail bool
}{
{
name: "non device mountable inline",
driverName: "inline-driver",
spec: volume.NewSpecFromVolume(makeTestVol("test-vol", "inline-driver")),
canDeviceMount: false,