vendor files

vendor/k8s.io/kubernetes/pkg/volume/nfs/BUILD

@@ -0,0 +1,56 @@
+package(default_visibility = ["//visibility:public"])
+
+load(
+    "@io_bazel_rules_go//go:def.bzl",
+    "go_library",
+    "go_test",
+)
+
+go_library(
+    name = "go_default_library",
+    srcs = [
+        "doc.go",
+        "nfs.go",
+    ],
+    importpath = "k8s.io/kubernetes/pkg/volume/nfs",
+    deps = [
+        "//pkg/util/mount:go_default_library",
+        "//pkg/util/strings:go_default_library",
+        "//pkg/volume:go_default_library",
+        "//pkg/volume/util:go_default_library",
+        "//vendor/github.com/golang/glog:go_default_library",
+        "//vendor/k8s.io/api/core/v1:go_default_library",
+        "//vendor/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
+        "//vendor/k8s.io/apimachinery/pkg/types:go_default_library",
+    ],
+)
+
+go_test(
+    name = "go_default_test",
+    srcs = ["nfs_test.go"],
+    importpath = "k8s.io/kubernetes/pkg/volume/nfs",
+    library = ":go_default_library",
+    deps = [
+        "//pkg/util/mount:go_default_library",
+        "//pkg/volume:go_default_library",
+        "//pkg/volume/testing:go_default_library",
+        "//vendor/k8s.io/api/core/v1:go_default_library",
+        "//vendor/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
+        "//vendor/k8s.io/apimachinery/pkg/types:go_default_library",
+        "//vendor/k8s.io/client-go/kubernetes/fake:go_default_library",
+        "//vendor/k8s.io/client-go/util/testing:go_default_library",
+    ],
+)
+
+filegroup(
+    name = "package-srcs",
+    srcs = glob(["**"]),
+    tags = ["automanaged"],
+    visibility = ["//visibility:private"],
+)
+
+filegroup(
+    name = "all-srcs",
+    srcs = [":package-srcs"],
+    tags = ["automanaged"],
+)

vendor/k8s.io/kubernetes/pkg/volume/nfs/OWNERS

@@ -0,0 +1,11 @@
+approvers:
+- rootfs
+- saad-ali
+- jingxu97
+reviewers:
+- sjenning
+- saad-ali
+- jsafrane
+- rootfs
+- jingxu97
+- msau42

vendor/k8s.io/kubernetes/pkg/volume/nfs/doc.go

@@ -0,0 +1,19 @@
+/*
+Copyright 2015 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 nfs contains the internal representation of network file system
+// (NFS) volumes.
+package nfs // import "k8s.io/kubernetes/pkg/volume/nfs"

vendor/k8s.io/kubernetes/pkg/volume/nfs/nfs.go

@@ -0,0 +1,305 @@
+/*
+Copyright 2014 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 nfs
+
+import (
+	"fmt"
+	"os"
+	"runtime"
+
+	"github.com/golang/glog"
+	"k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/types"
+	"k8s.io/kubernetes/pkg/util/mount"
+	"k8s.io/kubernetes/pkg/util/strings"
+	"k8s.io/kubernetes/pkg/volume"
+	"k8s.io/kubernetes/pkg/volume/util"
+)
+
+// This is the primary entrypoint for volume plugins.
+// The volumeConfig arg provides the ability to configure recycler behavior.  It is implemented as a pointer to allow nils.
+// The nfsPlugin is used to store the volumeConfig and give it, when needed, to the func that creates NFS Recyclers.
+// Tests that exercise recycling should not use this func but instead use ProbeRecyclablePlugins() to override default behavior.
+func ProbeVolumePlugins(volumeConfig volume.VolumeConfig) []volume.VolumePlugin {
+	return []volume.VolumePlugin{
+		&nfsPlugin{
+			host:   nil,
+			config: volumeConfig,
+		},
+	}
+}
+
+type nfsPlugin struct {
+	host   volume.VolumeHost
+	config volume.VolumeConfig
+}
+
+var _ volume.VolumePlugin = &nfsPlugin{}
+var _ volume.PersistentVolumePlugin = &nfsPlugin{}
+var _ volume.RecyclableVolumePlugin = &nfsPlugin{}
+
+const (
+	nfsPluginName = "kubernetes.io/nfs"
+)
+
+func (plugin *nfsPlugin) Init(host volume.VolumeHost) error {
+	plugin.host = host
+	return nil
+}
+
+func (plugin *nfsPlugin) GetPluginName() string {
+	return nfsPluginName
+}
+
+func (plugin *nfsPlugin) GetVolumeName(spec *volume.Spec) (string, error) {
+	volumeSource, _, err := getVolumeSource(spec)
+	if err != nil {
+		return "", err
+	}
+
+	return fmt.Sprintf(
+		"%v/%v",
+		volumeSource.Server,
+		volumeSource.Path), nil
+}
+
+func (plugin *nfsPlugin) CanSupport(spec *volume.Spec) bool {
+	return (spec.PersistentVolume != nil && spec.PersistentVolume.Spec.NFS != nil) ||
+		(spec.Volume != nil && spec.Volume.NFS != nil)
+}
+
+func (plugin *nfsPlugin) RequiresRemount() bool {
+	return false
+}
+
+func (plugin *nfsPlugin) SupportsMountOption() bool {
+	return true
+}
+
+func (plugin *nfsPlugin) SupportsBulkVolumeVerification() bool {
+	return false
+}
+
+func (plugin *nfsPlugin) GetAccessModes() []v1.PersistentVolumeAccessMode {
+	return []v1.PersistentVolumeAccessMode{
+		v1.ReadWriteOnce,
+		v1.ReadOnlyMany,
+		v1.ReadWriteMany,
+	}
+}
+
+func (plugin *nfsPlugin) NewMounter(spec *volume.Spec, pod *v1.Pod, _ volume.VolumeOptions) (volume.Mounter, error) {
+	return plugin.newMounterInternal(spec, pod, plugin.host.GetMounter(plugin.GetPluginName()))
+}
+
+func (plugin *nfsPlugin) newMounterInternal(spec *volume.Spec, pod *v1.Pod, mounter mount.Interface) (volume.Mounter, error) {
+	source, readOnly, err := getVolumeSource(spec)
+	if err != nil {
+		return nil, err
+	}
+
+	return &nfsMounter{
+		nfs: &nfs{
+			volName: spec.Name(),
+			mounter: mounter,
+			pod:     pod,
+			plugin:  plugin,
+		},
+		server:       source.Server,
+		exportPath:   source.Path,
+		readOnly:     readOnly,
+		mountOptions: volume.MountOptionFromSpec(spec),
+	}, nil
+}
+
+func (plugin *nfsPlugin) NewUnmounter(volName string, podUID types.UID) (volume.Unmounter, error) {
+	return plugin.newUnmounterInternal(volName, podUID, plugin.host.GetMounter(plugin.GetPluginName()))
+}
+
+func (plugin *nfsPlugin) newUnmounterInternal(volName string, podUID types.UID, mounter mount.Interface) (volume.Unmounter, error) {
+	return &nfsUnmounter{&nfs{
+		volName: volName,
+		mounter: mounter,
+		pod:     &v1.Pod{ObjectMeta: metav1.ObjectMeta{UID: podUID}},
+		plugin:  plugin,
+	}}, nil
+}
+
+// Recycle recycles/scrubs clean an NFS volume.
+// Recycle blocks until the pod has completed or any error occurs.
+func (plugin *nfsPlugin) Recycle(pvName string, spec *volume.Spec, eventRecorder volume.RecycleEventRecorder) error {
+	if spec.PersistentVolume == nil || spec.PersistentVolume.Spec.NFS == nil {
+		return fmt.Errorf("spec.PersistentVolumeSource.NFS is nil")
+	}
+
+	pod := plugin.config.RecyclerPodTemplate
+	timeout := volume.CalculateTimeoutForVolume(plugin.config.RecyclerMinimumTimeout, plugin.config.RecyclerTimeoutIncrement, spec.PersistentVolume)
+	// overrides
+	pod.Spec.ActiveDeadlineSeconds = &timeout
+	pod.GenerateName = "pv-recycler-nfs-"
+	pod.Spec.Volumes[0].VolumeSource = v1.VolumeSource{
+		NFS: &v1.NFSVolumeSource{
+			Server: spec.PersistentVolume.Spec.NFS.Server,
+			Path:   spec.PersistentVolume.Spec.NFS.Path,
+		},
+	}
+	return volume.RecycleVolumeByWatchingPodUntilCompletion(pvName, pod, plugin.host.GetKubeClient(), eventRecorder)
+}
+
+func (plugin *nfsPlugin) ConstructVolumeSpec(volumeName, mountPath string) (*volume.Spec, error) {
+	nfsVolume := &v1.Volume{
+		Name: volumeName,
+		VolumeSource: v1.VolumeSource{
+			NFS: &v1.NFSVolumeSource{
+				Path: volumeName,
+			},
+		},
+	}
+	return volume.NewSpecFromVolume(nfsVolume), nil
+}
+
+// NFS volumes represent a bare host file or directory mount of an NFS export.
+type nfs struct {
+	volName string
+	pod     *v1.Pod
+	mounter mount.Interface
+	plugin  *nfsPlugin
+	volume.MetricsNil
+}
+
+func (nfsVolume *nfs) GetPath() string {
+	name := nfsPluginName
+	return nfsVolume.plugin.host.GetPodVolumeDir(nfsVolume.pod.UID, strings.EscapeQualifiedNameForDisk(name), nfsVolume.volName)
+}
+
+// Checks prior to mount operations to verify that the required components (binaries, etc.)
+// to mount the volume are available on the underlying node.
+// If not, it returns an error
+func (nfsMounter *nfsMounter) CanMount() error {
+	exec := nfsMounter.plugin.host.GetExec(nfsMounter.plugin.GetPluginName())
+	switch runtime.GOOS {
+	case "linux":
+		if _, err := exec.Run("/bin/ls", "/sbin/mount.nfs"); err != nil {
+			return fmt.Errorf("Required binary /sbin/mount.nfs is missing")
+		}
+		if _, err := exec.Run("/bin/ls", "/sbin/mount.nfs4"); err != nil {
+			return fmt.Errorf("Required binary /sbin/mount.nfs4 is missing")
+		}
+		return nil
+	case "darwin":
+		if _, err := exec.Run("/bin/ls", "/sbin/mount_nfs"); err != nil {
+			return fmt.Errorf("Required binary /sbin/mount_nfs is missing")
+		}
+	}
+	return nil
+}
+
+type nfsMounter struct {
+	*nfs
+	server       string
+	exportPath   string
+	readOnly     bool
+	mountOptions []string
+}
+
+var _ volume.Mounter = &nfsMounter{}
+
+func (b *nfsMounter) GetAttributes() volume.Attributes {
+	return volume.Attributes{
+		ReadOnly:        b.readOnly,
+		Managed:         false,
+		SupportsSELinux: false,
+	}
+}
+
+// SetUp attaches the disk and bind mounts to the volume path.
+func (b *nfsMounter) SetUp(fsGroup *int64) error {
+	return b.SetUpAt(b.GetPath(), fsGroup)
+}
+
+func (b *nfsMounter) SetUpAt(dir string, fsGroup *int64) error {
+	notMnt, err := b.mounter.IsLikelyNotMountPoint(dir)
+	glog.V(4).Infof("NFS mount set up: %s %v %v", dir, !notMnt, err)
+	if err != nil && !os.IsNotExist(err) {
+		return err
+	}
+	if !notMnt {
+		return nil
+	}
+	if err := os.MkdirAll(dir, 0750); err != nil {
+		return err
+	}
+	source := fmt.Sprintf("%s:%s", b.server, b.exportPath)
+	options := []string{}
+	if b.readOnly {
+		options = append(options, "ro")
+	}
+	mountOptions := volume.JoinMountOptions(b.mountOptions, options)
+	err = b.mounter.Mount(source, dir, "nfs", mountOptions)
+	if err != nil {
+		notMnt, mntErr := b.mounter.IsLikelyNotMountPoint(dir)
+		if mntErr != nil {
+			glog.Errorf("IsLikelyNotMountPoint check failed: %v", mntErr)
+			return err
+		}
+		if !notMnt {
+			if mntErr = b.mounter.Unmount(dir); mntErr != nil {
+				glog.Errorf("Failed to unmount: %v", mntErr)
+				return err
+			}
+			notMnt, mntErr := b.mounter.IsLikelyNotMountPoint(dir)
+			if mntErr != nil {
+				glog.Errorf("IsLikelyNotMountPoint check failed: %v", mntErr)
+				return err
+			}
+			if !notMnt {
+				// This is very odd, we don't expect it.  We'll try again next sync loop.
+				glog.Errorf("%s is still mounted, despite call to unmount().  Will try again next sync loop.", dir)
+				return err
+			}
+		}
+		os.Remove(dir)
+		return err
+	}
+	return nil
+}
+
+var _ volume.Unmounter = &nfsUnmounter{}
+
+type nfsUnmounter struct {
+	*nfs
+}
+
+func (c *nfsUnmounter) TearDown() error {
+	return c.TearDownAt(c.GetPath())
+}
+
+func (c *nfsUnmounter) TearDownAt(dir string) error {
+	return util.UnmountPath(dir, c.mounter)
+}
+
+func getVolumeSource(spec *volume.Spec) (*v1.NFSVolumeSource, bool, error) {
+	if spec.Volume != nil && spec.Volume.NFS != nil {
+		return spec.Volume.NFS, spec.Volume.NFS.ReadOnly, nil
+	} else if spec.PersistentVolume != nil &&
+		spec.PersistentVolume.Spec.NFS != nil {
+		return spec.PersistentVolume.Spec.NFS, spec.ReadOnly, nil
+	}
+
+	return nil, false, fmt.Errorf("Spec does not reference a NFS volume type")
+}

vendor/k8s.io/kubernetes/pkg/volume/nfs/nfs_test.go

@@ -0,0 +1,247 @@
+/*
+Copyright 2014 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 nfs
+
+import (
+	"fmt"
+	"os"
+	"testing"
+
+	"k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/types"
+	"k8s.io/client-go/kubernetes/fake"
+	utiltesting "k8s.io/client-go/util/testing"
+	"k8s.io/kubernetes/pkg/util/mount"
+	"k8s.io/kubernetes/pkg/volume"
+	volumetest "k8s.io/kubernetes/pkg/volume/testing"
+)
+
+func TestCanSupport(t *testing.T) {
+	tmpDir, err := utiltesting.MkTmpdir("nfs_test")
+	if err != nil {
+		t.Fatalf("error creating temp dir: %v", err)
+	}
+	defer os.RemoveAll(tmpDir)
+
+	plugMgr := volume.VolumePluginMgr{}
+	plugMgr.InitPlugins(ProbeVolumePlugins(volume.VolumeConfig{}), nil /* prober */, volumetest.NewFakeVolumeHost(tmpDir, nil, nil))
+	plug, err := plugMgr.FindPluginByName("kubernetes.io/nfs")
+	if err != nil {
+		t.Errorf("Can't find the plugin by name")
+	}
+	if plug.GetPluginName() != "kubernetes.io/nfs" {
+		t.Errorf("Wrong name: %s", plug.GetPluginName())
+	}
+
+	if !plug.CanSupport(&volume.Spec{Volume: &v1.Volume{VolumeSource: v1.VolumeSource{NFS: &v1.NFSVolumeSource{}}}}) {
+		t.Errorf("Expected true")
+	}
+	if !plug.CanSupport(&volume.Spec{PersistentVolume: &v1.PersistentVolume{Spec: v1.PersistentVolumeSpec{PersistentVolumeSource: v1.PersistentVolumeSource{NFS: &v1.NFSVolumeSource{}}}}}) {
+		t.Errorf("Expected true")
+	}
+	if plug.CanSupport(&volume.Spec{Volume: &v1.Volume{VolumeSource: v1.VolumeSource{}}}) {
+		t.Errorf("Expected false")
+	}
+}
+
+func TestGetAccessModes(t *testing.T) {
+	tmpDir, err := utiltesting.MkTmpdir("nfs_test")
+	if err != nil {
+		t.Fatalf("error creating temp dir: %v", err)
+	}
+	defer os.RemoveAll(tmpDir)
+
+	plugMgr := volume.VolumePluginMgr{}
+	plugMgr.InitPlugins(ProbeVolumePlugins(volume.VolumeConfig{}), nil /* prober */, volumetest.NewFakeVolumeHost(tmpDir, nil, nil))
+
+	plug, err := plugMgr.FindPersistentPluginByName("kubernetes.io/nfs")
+	if err != nil {
+		t.Errorf("Can't find the plugin by name")
+	}
+	if !volumetest.ContainsAccessMode(plug.GetAccessModes(), v1.ReadWriteOnce) || !volumetest.ContainsAccessMode(plug.GetAccessModes(), v1.ReadOnlyMany) || !volumetest.ContainsAccessMode(plug.GetAccessModes(), v1.ReadWriteMany) {
+		t.Errorf("Expected three AccessModeTypes:  %s, %s, and %s", v1.ReadWriteOnce, v1.ReadOnlyMany, v1.ReadWriteMany)
+	}
+}
+
+func TestRecycler(t *testing.T) {
+	tmpDir, err := utiltesting.MkTmpdir("nfs_test")
+	if err != nil {
+		t.Fatalf("error creating temp dir: %v", err)
+	}
+	defer os.RemoveAll(tmpDir)
+
+	plugMgr := volume.VolumePluginMgr{}
+	plugMgr.InitPlugins([]volume.VolumePlugin{&nfsPlugin{nil, volume.VolumeConfig{}}}, nil, volumetest.NewFakeVolumeHost(tmpDir, nil, nil))
+
+	spec := &volume.Spec{PersistentVolume: &v1.PersistentVolume{Spec: v1.PersistentVolumeSpec{PersistentVolumeSource: v1.PersistentVolumeSource{NFS: &v1.NFSVolumeSource{Path: "/foo"}}}}}
+	_, plugin_err := plugMgr.FindRecyclablePluginBySpec(spec)
+	if plugin_err != nil {
+		t.Errorf("Can't find the plugin by name")
+	}
+}
+
+func doTestPlugin(t *testing.T, spec *volume.Spec) {
+	tmpDir, err := utiltesting.MkTmpdir("nfs_test")
+	if err != nil {
+		t.Fatalf("error creating temp dir: %v", err)
+	}
+	defer os.RemoveAll(tmpDir)
+
+	plugMgr := volume.VolumePluginMgr{}
+	plugMgr.InitPlugins(ProbeVolumePlugins(volume.VolumeConfig{}), nil /* prober */, volumetest.NewFakeVolumeHost(tmpDir, nil, nil))
+	plug, err := plugMgr.FindPluginByName("kubernetes.io/nfs")
+	if err != nil {
+		t.Errorf("Can't find the plugin by name")
+	}
+	fake := &mount.FakeMounter{}
+	pod := &v1.Pod{ObjectMeta: metav1.ObjectMeta{UID: types.UID("poduid")}}
+	mounter, err := plug.(*nfsPlugin).newMounterInternal(spec, pod, fake)
+	if err != nil {
+		t.Errorf("Failed to make a new Mounter: %v", err)
+	}
+	if mounter == nil {
+		t.Errorf("Got a nil Mounter")
+	}
+	volumePath := mounter.GetPath()
+	expectedPath := fmt.Sprintf("%s/pods/poduid/volumes/kubernetes.io~nfs/vol1", tmpDir)
+	if volumePath != expectedPath {
+		t.Errorf("Unexpected path, expected %q, got: %q", expectedPath, volumePath)
+	}
+	if err := mounter.SetUp(nil); err != nil {
+		t.Errorf("Expected success, got: %v", err)
+	}
+	if _, err := os.Stat(volumePath); err != nil {
+		if os.IsNotExist(err) {
+			t.Errorf("SetUp() failed, volume path not created: %s", volumePath)
+		} else {
+			t.Errorf("SetUp() failed: %v", err)
+		}
+	}
+	if mounter.(*nfsMounter).readOnly {
+		t.Errorf("The volume source should not be read-only and it is.")
+	}
+	if len(fake.Log) != 1 {
+		t.Errorf("Mount was not called exactly one time. It was called %d times.", len(fake.Log))
+	} else {
+		if fake.Log[0].Action != mount.FakeActionMount {
+			t.Errorf("Unexpected mounter action: %#v", fake.Log[0])
+		}
+	}
+	fake.ResetLog()
+
+	unmounter, err := plug.(*nfsPlugin).newUnmounterInternal("vol1", types.UID("poduid"), fake)
+	if err != nil {
+		t.Errorf("Failed to make a new Unmounter: %v", err)
+	}
+	if unmounter == nil {
+		t.Errorf("Got a nil Unmounter")
+	}
+	if err := unmounter.TearDown(); err != nil {
+		t.Errorf("Expected success, got: %v", err)
+	}
+	if _, err := os.Stat(volumePath); err == nil {
+		t.Errorf("TearDown() failed, volume path still exists: %s", volumePath)
+	} else if !os.IsNotExist(err) {
+		t.Errorf("TearDown() failed: %v", err)
+	}
+	if len(fake.Log) != 1 {
+		t.Errorf("Unmount was not called exactly one time. It was called %d times.", len(fake.Log))
+	} else {
+		if fake.Log[0].Action != mount.FakeActionUnmount {
+			t.Errorf("Unexpected unmounter action: %#v", fake.Log[0])
+		}
+	}
+
+	fake.ResetLog()
+}
+
+func TestPluginVolume(t *testing.T) {
+	vol := &v1.Volume{
+		Name:         "vol1",
+		VolumeSource: v1.VolumeSource{NFS: &v1.NFSVolumeSource{Server: "localhost", Path: "/somepath", ReadOnly: false}},
+	}
+	doTestPlugin(t, volume.NewSpecFromVolume(vol))
+}
+
+func TestPluginPersistentVolume(t *testing.T) {
+	vol := &v1.PersistentVolume{
+		ObjectMeta: metav1.ObjectMeta{
+			Name: "vol1",
+		},
+		Spec: v1.PersistentVolumeSpec{
+			PersistentVolumeSource: v1.PersistentVolumeSource{
+				NFS: &v1.NFSVolumeSource{Server: "localhost", Path: "/somepath", ReadOnly: false},
+			},
+		},
+	}
+
+	doTestPlugin(t, volume.NewSpecFromPersistentVolume(vol, false))
+}
+
+func TestPersistentClaimReadOnlyFlag(t *testing.T) {
+	tmpDir, err := utiltesting.MkTmpdir("nfs_test")
+	if err != nil {
+		t.Fatalf("error creating temp dir: %v", err)
+	}
+	defer os.RemoveAll(tmpDir)
+
+	pv := &v1.PersistentVolume{
+		ObjectMeta: metav1.ObjectMeta{
+			Name: "pvA",
+		},
+		Spec: v1.PersistentVolumeSpec{
+			PersistentVolumeSource: v1.PersistentVolumeSource{
+				NFS: &v1.NFSVolumeSource{},
+			},
+			ClaimRef: &v1.ObjectReference{
+				Name: "claimA",
+			},
+		},
+	}
+
+	claim := &v1.PersistentVolumeClaim{
+		ObjectMeta: metav1.ObjectMeta{
+			Name:      "claimA",
+			Namespace: "nsA",
+		},
+		Spec: v1.PersistentVolumeClaimSpec{
+			VolumeName: "pvA",
+		},
+		Status: v1.PersistentVolumeClaimStatus{
+			Phase: v1.ClaimBound,
+		},
+	}
+
+	client := fake.NewSimpleClientset(pv, claim)
+
+	plugMgr := volume.VolumePluginMgr{}
+	plugMgr.InitPlugins(ProbeVolumePlugins(volume.VolumeConfig{}), nil /* prober */, volumetest.NewFakeVolumeHost(tmpDir, client, nil))
+	plug, _ := plugMgr.FindPluginByName(nfsPluginName)
+
+	// readOnly bool is supplied by persistent-claim volume source when its mounter creates other volumes
+	spec := volume.NewSpecFromPersistentVolume(pv, true)
+	pod := &v1.Pod{ObjectMeta: metav1.ObjectMeta{UID: types.UID("poduid")}}
+	mounter, _ := plug.NewMounter(spec, pod, volume.VolumeOptions{})
+	if mounter == nil {
+		t.Fatalf("Got a nil Mounter")
+	}
+
+	if !mounter.GetAttributes().ReadOnly {
+		t.Errorf("Expected true for mounter.IsReadOnly")
+	}
+}