/
in_tree.go
1958 lines (1734 loc) · 59.3 KB
/
in_tree.go
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/*
Copyright 2018 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.
*/
/*
* This file defines various in-tree volume test drivers for TestSuites.
*
* There are two ways, how to prepare test drivers:
* 1) With containerized server (NFS, Ceph, Gluster, iSCSI, ...)
* It creates a server pod which defines one volume for the tests.
* These tests work only when privileged containers are allowed, exporting
* various filesystems (NFS, GlusterFS, ...) usually needs some mounting or
* other privileged magic in the server pod.
*
* Note that the server containers are for testing purposes only and should not
* be used in production.
*
* 2) With server or cloud provider outside of Kubernetes (Cinder, GCE, AWS, Azure, ...)
* Appropriate server or cloud provider must exist somewhere outside
* the tested Kubernetes cluster. CreateVolume will create a new volume to be
* used in the TestSuites for inlineVolume or DynamicPV tests.
*/
package drivers
import (
"context"
"fmt"
"os/exec"
"strconv"
"strings"
"time"
"github.com/onsi/ginkgo"
v1 "k8s.io/api/core/v1"
rbacv1 "k8s.io/api/rbac/v1"
storagev1 "k8s.io/api/storage/v1"
apierrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/apimachinery/pkg/util/sets"
"k8s.io/apiserver/pkg/authentication/serviceaccount"
clientset "k8s.io/client-go/kubernetes"
"k8s.io/kubernetes/test/e2e/framework"
"k8s.io/kubernetes/test/e2e/framework/auth"
e2enode "k8s.io/kubernetes/test/e2e/framework/node"
e2epod "k8s.io/kubernetes/test/e2e/framework/pod"
e2epv "k8s.io/kubernetes/test/e2e/framework/pv"
e2eskipper "k8s.io/kubernetes/test/e2e/framework/skipper"
"k8s.io/kubernetes/test/e2e/framework/volume"
"k8s.io/kubernetes/test/e2e/storage/testpatterns"
"k8s.io/kubernetes/test/e2e/storage/testsuites"
"k8s.io/kubernetes/test/e2e/storage/utils"
vspheretest "k8s.io/kubernetes/test/e2e/storage/vsphere"
imageutils "k8s.io/kubernetes/test/utils/image"
)
const (
// Template for iSCSI IQN.
iSCSIIQNTemplate = "iqn.2003-01.io.k8s:e2e.%s"
)
// NFS
type nfsDriver struct {
externalProvisionerPod *v1.Pod
externalPluginName string
driverInfo testsuites.DriverInfo
}
type nfsVolume struct {
serverIP string
serverPod *v1.Pod
f *framework.Framework
}
var _ testsuites.TestDriver = &nfsDriver{}
var _ testsuites.PreprovisionedVolumeTestDriver = &nfsDriver{}
var _ testsuites.InlineVolumeTestDriver = &nfsDriver{}
var _ testsuites.PreprovisionedPVTestDriver = &nfsDriver{}
var _ testsuites.DynamicPVTestDriver = &nfsDriver{}
// InitNFSDriver returns nfsDriver that implements TestDriver interface
func InitNFSDriver() testsuites.TestDriver {
return &nfsDriver{
driverInfo: testsuites.DriverInfo{
Name: "nfs",
InTreePluginName: "kubernetes.io/nfs",
MaxFileSize: testpatterns.FileSizeLarge,
SupportedSizeRange: volume.SizeRange{
Min: "5Gi",
},
SupportedFsType: sets.NewString(
"", // Default fsType
),
SupportedMountOption: sets.NewString("proto=tcp", "relatime"),
RequiredMountOption: sets.NewString("vers=4.1"),
Capabilities: map[testsuites.Capability]bool{
testsuites.CapPersistence: true,
testsuites.CapExec: true,
testsuites.CapRWX: true,
testsuites.CapMultiPODs: true,
},
},
}
}
func (n *nfsDriver) GetDriverInfo() *testsuites.DriverInfo {
return &n.driverInfo
}
func (n *nfsDriver) SkipUnsupportedTest(pattern testpatterns.TestPattern) {
}
func (n *nfsDriver) GetVolumeSource(readOnly bool, fsType string, volume testsuites.TestVolume) *v1.VolumeSource {
nv, ok := volume.(*nfsVolume)
framework.ExpectEqual(ok, true, "Failed to cast test volume to NFS test volume")
return &v1.VolumeSource{
NFS: &v1.NFSVolumeSource{
Server: nv.serverIP,
Path: "/",
ReadOnly: readOnly,
},
}
}
func (n *nfsDriver) GetPersistentVolumeSource(readOnly bool, fsType string, volume testsuites.TestVolume) (*v1.PersistentVolumeSource, *v1.VolumeNodeAffinity) {
nv, ok := volume.(*nfsVolume)
framework.ExpectEqual(ok, true, "Failed to cast test volume to NFS test volume")
return &v1.PersistentVolumeSource{
NFS: &v1.NFSVolumeSource{
Server: nv.serverIP,
Path: "/",
ReadOnly: readOnly,
},
}, nil
}
func (n *nfsDriver) GetDynamicProvisionStorageClass(config *testsuites.PerTestConfig, fsType string) *storagev1.StorageClass {
provisioner := n.externalPluginName
parameters := map[string]string{"mountOptions": "vers=4.1"}
ns := config.Framework.Namespace.Name
suffix := fmt.Sprintf("%s-sc", n.driverInfo.Name)
return testsuites.GetStorageClass(provisioner, parameters, nil, ns, suffix)
}
func (n *nfsDriver) PrepareTest(f *framework.Framework) (*testsuites.PerTestConfig, func()) {
cs := f.ClientSet
ns := f.Namespace
n.externalPluginName = fmt.Sprintf("example.com/nfs-%s", ns.Name)
// TODO(mkimuram): cluster-admin gives too much right but system:persistent-volume-provisioner
// is not enough. We should create new clusterrole for testing.
err := auth.BindClusterRole(cs.RbacV1(), "cluster-admin", ns.Name,
rbacv1.Subject{Kind: rbacv1.ServiceAccountKind, Namespace: ns.Name, Name: "default"})
framework.ExpectNoError(err)
err = auth.WaitForAuthorizationUpdate(cs.AuthorizationV1(),
serviceaccount.MakeUsername(ns.Name, "default"),
"", "get", schema.GroupResource{Group: "storage.k8s.io", Resource: "storageclasses"}, true)
framework.ExpectNoError(err, "Failed to update authorization: %v", err)
ginkgo.By("creating an external dynamic provisioner pod")
n.externalProvisionerPod = utils.StartExternalProvisioner(cs, ns.Name, n.externalPluginName)
return &testsuites.PerTestConfig{
Driver: n,
Prefix: "nfs",
Framework: f,
}, func() {
framework.ExpectNoError(e2epod.DeletePodWithWait(cs, n.externalProvisionerPod))
clusterRoleBindingName := ns.Name + "--" + "cluster-admin"
cs.RbacV1().ClusterRoleBindings().Delete(context.TODO(), clusterRoleBindingName, *metav1.NewDeleteOptions(0))
}
}
func (n *nfsDriver) CreateVolume(config *testsuites.PerTestConfig, volType testpatterns.TestVolType) testsuites.TestVolume {
f := config.Framework
cs := f.ClientSet
ns := f.Namespace
// NewNFSServer creates a pod for InlineVolume and PreprovisionedPV,
// and startExternalProvisioner creates a pod for DynamicPV.
// Therefore, we need a different PrepareTest logic for volType.
switch volType {
case testpatterns.InlineVolume:
fallthrough
case testpatterns.PreprovisionedPV:
c, serverPod, serverIP := volume.NewNFSServer(cs, ns.Name, []string{})
config.ServerConfig = &c
return &nfsVolume{
serverIP: serverIP,
serverPod: serverPod,
f: f,
}
case testpatterns.DynamicPV:
// Do nothing
default:
framework.Failf("Unsupported volType:%v is specified", volType)
}
return nil
}
func (v *nfsVolume) DeleteVolume() {
cleanUpVolumeServer(v.f, v.serverPod)
}
// Gluster
type glusterFSDriver struct {
driverInfo testsuites.DriverInfo
}
type glusterVolume struct {
prefix string
serverPod *v1.Pod
f *framework.Framework
}
var _ testsuites.TestDriver = &glusterFSDriver{}
var _ testsuites.PreprovisionedVolumeTestDriver = &glusterFSDriver{}
var _ testsuites.InlineVolumeTestDriver = &glusterFSDriver{}
var _ testsuites.PreprovisionedPVTestDriver = &glusterFSDriver{}
// InitGlusterFSDriver returns glusterFSDriver that implements TestDriver interface
func InitGlusterFSDriver() testsuites.TestDriver {
return &glusterFSDriver{
driverInfo: testsuites.DriverInfo{
Name: "gluster",
InTreePluginName: "kubernetes.io/glusterfs",
MaxFileSize: testpatterns.FileSizeMedium,
SupportedSizeRange: volume.SizeRange{
Min: "5Gi",
},
SupportedFsType: sets.NewString(
"", // Default fsType
),
Capabilities: map[testsuites.Capability]bool{
testsuites.CapPersistence: true,
testsuites.CapExec: true,
testsuites.CapRWX: true,
testsuites.CapMultiPODs: true,
},
},
}
}
func (g *glusterFSDriver) GetDriverInfo() *testsuites.DriverInfo {
return &g.driverInfo
}
func (g *glusterFSDriver) SkipUnsupportedTest(pattern testpatterns.TestPattern) {
e2eskipper.SkipUnlessNodeOSDistroIs("gci", "ubuntu", "custom")
}
func (g *glusterFSDriver) GetVolumeSource(readOnly bool, fsType string, volume testsuites.TestVolume) *v1.VolumeSource {
gv, ok := volume.(*glusterVolume)
framework.ExpectEqual(ok, true, "Failed to cast test volume to Gluster test volume")
name := gv.prefix + "-server"
return &v1.VolumeSource{
Glusterfs: &v1.GlusterfsVolumeSource{
EndpointsName: name,
// 'test_vol' comes from test/images/volumes-tester/gluster/run_gluster.sh
Path: "test_vol",
ReadOnly: readOnly,
},
}
}
func (g *glusterFSDriver) GetPersistentVolumeSource(readOnly bool, fsType string, volume testsuites.TestVolume) (*v1.PersistentVolumeSource, *v1.VolumeNodeAffinity) {
gv, ok := volume.(*glusterVolume)
framework.ExpectEqual(ok, true, "Failed to cast test volume to Gluster test volume")
name := gv.prefix + "-server"
return &v1.PersistentVolumeSource{
Glusterfs: &v1.GlusterfsPersistentVolumeSource{
EndpointsName: name,
// 'test_vol' comes from test/images/volumes-tester/gluster/run_gluster.sh
Path: "test_vol",
ReadOnly: readOnly,
},
}, nil
}
func (g *glusterFSDriver) PrepareTest(f *framework.Framework) (*testsuites.PerTestConfig, func()) {
return &testsuites.PerTestConfig{
Driver: g,
Prefix: "gluster",
Framework: f,
}, func() {}
}
func (g *glusterFSDriver) CreateVolume(config *testsuites.PerTestConfig, volType testpatterns.TestVolType) testsuites.TestVolume {
f := config.Framework
cs := f.ClientSet
ns := f.Namespace
c, serverPod, _ := volume.NewGlusterfsServer(cs, ns.Name)
config.ServerConfig = &c
return &glusterVolume{
prefix: config.Prefix,
serverPod: serverPod,
f: f,
}
}
func (v *glusterVolume) DeleteVolume() {
f := v.f
cs := f.ClientSet
ns := f.Namespace
name := v.prefix + "-server"
framework.Logf("Deleting Gluster endpoints %q...", name)
err := cs.CoreV1().Endpoints(ns.Name).Delete(context.TODO(), name, metav1.DeleteOptions{})
if err != nil {
if !apierrors.IsNotFound(err) {
framework.Failf("Gluster delete endpoints failed: %v", err)
}
framework.Logf("Gluster endpoints %q not found, assuming deleted", name)
}
framework.Logf("Deleting Gluster server pod %q...", v.serverPod.Name)
err = e2epod.DeletePodWithWait(cs, v.serverPod)
if err != nil {
framework.Failf("Gluster server pod delete failed: %v", err)
}
}
// iSCSI
// The iscsiadm utility and iscsi target kernel modules must be installed on all nodes.
type iSCSIDriver struct {
driverInfo testsuites.DriverInfo
}
type iSCSIVolume struct {
serverPod *v1.Pod
serverIP string
f *framework.Framework
iqn string
}
var _ testsuites.TestDriver = &iSCSIDriver{}
var _ testsuites.PreprovisionedVolumeTestDriver = &iSCSIDriver{}
var _ testsuites.InlineVolumeTestDriver = &iSCSIDriver{}
var _ testsuites.PreprovisionedPVTestDriver = &iSCSIDriver{}
// InitISCSIDriver returns iSCSIDriver that implements TestDriver interface
func InitISCSIDriver() testsuites.TestDriver {
return &iSCSIDriver{
driverInfo: testsuites.DriverInfo{
Name: "iscsi",
InTreePluginName: "kubernetes.io/iscsi",
FeatureTag: "[Feature:Volumes]",
MaxFileSize: testpatterns.FileSizeMedium,
SupportedFsType: sets.NewString(
"", // Default fsType
"ext2",
// TODO: fix iSCSI driver can work with ext3
//"ext3",
"ext4",
),
TopologyKeys: []string{v1.LabelHostname},
Capabilities: map[testsuites.Capability]bool{
testsuites.CapPersistence: true,
testsuites.CapFsGroup: true,
testsuites.CapBlock: true,
testsuites.CapExec: true,
testsuites.CapMultiPODs: true,
testsuites.CapTopology: true,
},
},
}
}
func (i *iSCSIDriver) GetDriverInfo() *testsuites.DriverInfo {
return &i.driverInfo
}
func (i *iSCSIDriver) SkipUnsupportedTest(pattern testpatterns.TestPattern) {
}
func (i *iSCSIDriver) GetVolumeSource(readOnly bool, fsType string, volume testsuites.TestVolume) *v1.VolumeSource {
iv, ok := volume.(*iSCSIVolume)
framework.ExpectEqual(ok, true, "Failed to cast test volume to iSCSI test volume")
volSource := v1.VolumeSource{
ISCSI: &v1.ISCSIVolumeSource{
TargetPortal: "127.0.0.1:3260",
IQN: iv.iqn,
Lun: 0,
ReadOnly: readOnly,
},
}
if fsType != "" {
volSource.ISCSI.FSType = fsType
}
return &volSource
}
func (i *iSCSIDriver) GetPersistentVolumeSource(readOnly bool, fsType string, volume testsuites.TestVolume) (*v1.PersistentVolumeSource, *v1.VolumeNodeAffinity) {
iv, ok := volume.(*iSCSIVolume)
framework.ExpectEqual(ok, true, "Failed to cast test volume to iSCSI test volume")
pvSource := v1.PersistentVolumeSource{
ISCSI: &v1.ISCSIPersistentVolumeSource{
TargetPortal: "127.0.0.1:3260",
IQN: iv.iqn,
Lun: 0,
ReadOnly: readOnly,
},
}
if fsType != "" {
pvSource.ISCSI.FSType = fsType
}
return &pvSource, nil
}
func (i *iSCSIDriver) PrepareTest(f *framework.Framework) (*testsuites.PerTestConfig, func()) {
return &testsuites.PerTestConfig{
Driver: i,
Prefix: "iscsi",
Framework: f,
}, func() {}
}
func (i *iSCSIDriver) CreateVolume(config *testsuites.PerTestConfig, volType testpatterns.TestVolType) testsuites.TestVolume {
f := config.Framework
cs := f.ClientSet
ns := f.Namespace
c, serverPod, serverIP, iqn := newISCSIServer(cs, ns.Name)
config.ServerConfig = &c
config.ClientNodeSelection = c.ClientNodeSelection
return &iSCSIVolume{
serverPod: serverPod,
serverIP: serverIP,
iqn: iqn,
f: f,
}
}
// newISCSIServer is an iSCSI-specific wrapper for CreateStorageServer.
func newISCSIServer(cs clientset.Interface, namespace string) (config volume.TestConfig, pod *v1.Pod, ip, iqn string) {
// Generate cluster-wide unique IQN
iqn = fmt.Sprintf(iSCSIIQNTemplate, namespace)
config = volume.TestConfig{
Namespace: namespace,
Prefix: "iscsi",
ServerImage: imageutils.GetE2EImage(imageutils.VolumeISCSIServer),
ServerArgs: []string{iqn},
ServerVolumes: map[string]string{
// iSCSI container needs to insert modules from the host
"/lib/modules": "/lib/modules",
// iSCSI container needs to configure kernel
"/sys/kernel": "/sys/kernel",
// iSCSI source "block devices" must be available on the host
"/srv/iscsi": "/srv/iscsi",
},
ServerReadyMessage: "iscsi target started",
ServerHostNetwork: true,
}
pod, ip = volume.CreateStorageServer(cs, config)
// Make sure the client runs on the same node as server so we don't need to open any firewalls.
config.ClientNodeSelection = e2epod.NodeSelection{Name: pod.Spec.NodeName}
return config, pod, ip, iqn
}
// newRBDServer is a CephRBD-specific wrapper for CreateStorageServer.
func newRBDServer(cs clientset.Interface, namespace string) (config volume.TestConfig, pod *v1.Pod, secret *v1.Secret, ip string) {
config = volume.TestConfig{
Namespace: namespace,
Prefix: "rbd",
ServerImage: imageutils.GetE2EImage(imageutils.VolumeRBDServer),
ServerPorts: []int{6789},
ServerVolumes: map[string]string{
"/lib/modules": "/lib/modules",
},
ServerReadyMessage: "Ceph is ready",
}
pod, ip = volume.CreateStorageServer(cs, config)
// create secrets for the server
secret = &v1.Secret{
TypeMeta: metav1.TypeMeta{
Kind: "Secret",
APIVersion: "v1",
},
ObjectMeta: metav1.ObjectMeta{
Name: config.Prefix + "-secret",
},
Data: map[string][]byte{
// from test/images/volumes-tester/rbd/keyring
"key": []byte("AQDRrKNVbEevChAAEmRC+pW/KBVHxa0w/POILA=="),
},
Type: "kubernetes.io/rbd",
}
secret, err := cs.CoreV1().Secrets(config.Namespace).Create(context.TODO(), secret, metav1.CreateOptions{})
if err != nil {
framework.Failf("Failed to create secrets for Ceph RBD: %v", err)
}
return config, pod, secret, ip
}
func (v *iSCSIVolume) DeleteVolume() {
cleanUpVolumeServer(v.f, v.serverPod)
}
// Ceph RBD
type rbdDriver struct {
driverInfo testsuites.DriverInfo
}
type rbdVolume struct {
serverPod *v1.Pod
serverIP string
secret *v1.Secret
f *framework.Framework
}
var _ testsuites.TestDriver = &rbdDriver{}
var _ testsuites.PreprovisionedVolumeTestDriver = &rbdDriver{}
var _ testsuites.InlineVolumeTestDriver = &rbdDriver{}
var _ testsuites.PreprovisionedPVTestDriver = &rbdDriver{}
// InitRbdDriver returns rbdDriver that implements TestDriver interface
func InitRbdDriver() testsuites.TestDriver {
return &rbdDriver{
driverInfo: testsuites.DriverInfo{
Name: "rbd",
InTreePluginName: "kubernetes.io/rbd",
FeatureTag: "[Feature:Volumes][Serial]",
MaxFileSize: testpatterns.FileSizeMedium,
SupportedSizeRange: volume.SizeRange{
Min: "5Gi",
},
SupportedFsType: sets.NewString(
"", // Default fsType
"ext2",
// TODO: fix rbd driver can work with ext3
//"ext3",
"ext4",
),
Capabilities: map[testsuites.Capability]bool{
testsuites.CapPersistence: true,
testsuites.CapFsGroup: true,
testsuites.CapBlock: true,
testsuites.CapExec: true,
testsuites.CapMultiPODs: true,
},
},
}
}
func (r *rbdDriver) GetDriverInfo() *testsuites.DriverInfo {
return &r.driverInfo
}
func (r *rbdDriver) SkipUnsupportedTest(pattern testpatterns.TestPattern) {
}
func (r *rbdDriver) GetVolumeSource(readOnly bool, fsType string, volume testsuites.TestVolume) *v1.VolumeSource {
rv, ok := volume.(*rbdVolume)
framework.ExpectEqual(ok, true, "Failed to cast test volume to RBD test volume")
volSource := v1.VolumeSource{
RBD: &v1.RBDVolumeSource{
CephMonitors: []string{rv.serverIP},
RBDPool: "rbd",
RBDImage: "foo",
RadosUser: "admin",
SecretRef: &v1.LocalObjectReference{
Name: rv.secret.Name,
},
ReadOnly: readOnly,
},
}
if fsType != "" {
volSource.RBD.FSType = fsType
}
return &volSource
}
func (r *rbdDriver) GetPersistentVolumeSource(readOnly bool, fsType string, volume testsuites.TestVolume) (*v1.PersistentVolumeSource, *v1.VolumeNodeAffinity) {
rv, ok := volume.(*rbdVolume)
framework.ExpectEqual(ok, true, "Failed to cast test volume to RBD test volume")
f := rv.f
ns := f.Namespace
pvSource := v1.PersistentVolumeSource{
RBD: &v1.RBDPersistentVolumeSource{
CephMonitors: []string{rv.serverIP},
RBDPool: "rbd",
RBDImage: "foo",
RadosUser: "admin",
SecretRef: &v1.SecretReference{
Name: rv.secret.Name,
Namespace: ns.Name,
},
ReadOnly: readOnly,
},
}
if fsType != "" {
pvSource.RBD.FSType = fsType
}
return &pvSource, nil
}
func (r *rbdDriver) PrepareTest(f *framework.Framework) (*testsuites.PerTestConfig, func()) {
return &testsuites.PerTestConfig{
Driver: r,
Prefix: "rbd",
Framework: f,
}, func() {}
}
func (r *rbdDriver) CreateVolume(config *testsuites.PerTestConfig, volType testpatterns.TestVolType) testsuites.TestVolume {
f := config.Framework
cs := f.ClientSet
ns := f.Namespace
c, serverPod, secret, serverIP := newRBDServer(cs, ns.Name)
config.ServerConfig = &c
return &rbdVolume{
serverPod: serverPod,
serverIP: serverIP,
secret: secret,
f: f,
}
}
func (v *rbdVolume) DeleteVolume() {
cleanUpVolumeServerWithSecret(v.f, v.serverPod, v.secret)
}
// Ceph
type cephFSDriver struct {
driverInfo testsuites.DriverInfo
}
type cephVolume struct {
serverPod *v1.Pod
serverIP string
secret *v1.Secret
f *framework.Framework
}
var _ testsuites.TestDriver = &cephFSDriver{}
var _ testsuites.PreprovisionedVolumeTestDriver = &cephFSDriver{}
var _ testsuites.InlineVolumeTestDriver = &cephFSDriver{}
var _ testsuites.PreprovisionedPVTestDriver = &cephFSDriver{}
// InitCephFSDriver returns cephFSDriver that implements TestDriver interface
func InitCephFSDriver() testsuites.TestDriver {
return &cephFSDriver{
driverInfo: testsuites.DriverInfo{
Name: "ceph",
InTreePluginName: "kubernetes.io/cephfs",
FeatureTag: "[Feature:Volumes][Serial]",
MaxFileSize: testpatterns.FileSizeMedium,
SupportedSizeRange: volume.SizeRange{
Min: "5Gi",
},
SupportedFsType: sets.NewString(
"", // Default fsType
),
Capabilities: map[testsuites.Capability]bool{
testsuites.CapPersistence: true,
testsuites.CapExec: true,
testsuites.CapRWX: true,
testsuites.CapMultiPODs: true,
},
},
}
}
func (c *cephFSDriver) GetDriverInfo() *testsuites.DriverInfo {
return &c.driverInfo
}
func (c *cephFSDriver) SkipUnsupportedTest(pattern testpatterns.TestPattern) {
}
func (c *cephFSDriver) GetVolumeSource(readOnly bool, fsType string, volume testsuites.TestVolume) *v1.VolumeSource {
cv, ok := volume.(*cephVolume)
framework.ExpectEqual(ok, true, "Failed to cast test volume to Ceph test volume")
return &v1.VolumeSource{
CephFS: &v1.CephFSVolumeSource{
Monitors: []string{cv.serverIP + ":6789"},
User: "kube",
SecretRef: &v1.LocalObjectReference{
Name: cv.secret.Name,
},
ReadOnly: readOnly,
},
}
}
func (c *cephFSDriver) GetPersistentVolumeSource(readOnly bool, fsType string, volume testsuites.TestVolume) (*v1.PersistentVolumeSource, *v1.VolumeNodeAffinity) {
cv, ok := volume.(*cephVolume)
framework.ExpectEqual(ok, true, "Failed to cast test volume to Ceph test volume")
ns := cv.f.Namespace
return &v1.PersistentVolumeSource{
CephFS: &v1.CephFSPersistentVolumeSource{
Monitors: []string{cv.serverIP + ":6789"},
User: "kube",
SecretRef: &v1.SecretReference{
Name: cv.secret.Name,
Namespace: ns.Name,
},
ReadOnly: readOnly,
},
}, nil
}
func (c *cephFSDriver) PrepareTest(f *framework.Framework) (*testsuites.PerTestConfig, func()) {
return &testsuites.PerTestConfig{
Driver: c,
Prefix: "cephfs",
Framework: f,
}, func() {}
}
func (c *cephFSDriver) CreateVolume(config *testsuites.PerTestConfig, volType testpatterns.TestVolType) testsuites.TestVolume {
f := config.Framework
cs := f.ClientSet
ns := f.Namespace
cfg, serverPod, secret, serverIP := newRBDServer(cs, ns.Name)
config.ServerConfig = &cfg
return &cephVolume{
serverPod: serverPod,
serverIP: serverIP,
secret: secret,
f: f,
}
}
func (v *cephVolume) DeleteVolume() {
cleanUpVolumeServerWithSecret(v.f, v.serverPod, v.secret)
}
// Hostpath
type hostPathDriver struct {
driverInfo testsuites.DriverInfo
}
var _ testsuites.TestDriver = &hostPathDriver{}
var _ testsuites.PreprovisionedVolumeTestDriver = &hostPathDriver{}
var _ testsuites.InlineVolumeTestDriver = &hostPathDriver{}
// InitHostPathDriver returns hostPathDriver that implements TestDriver interface
func InitHostPathDriver() testsuites.TestDriver {
return &hostPathDriver{
driverInfo: testsuites.DriverInfo{
Name: "hostPath",
InTreePluginName: "kubernetes.io/host-path",
MaxFileSize: testpatterns.FileSizeMedium,
SupportedFsType: sets.NewString(
"", // Default fsType
),
TopologyKeys: []string{v1.LabelHostname},
Capabilities: map[testsuites.Capability]bool{
testsuites.CapPersistence: true,
testsuites.CapMultiPODs: true,
testsuites.CapSingleNodeVolume: true,
testsuites.CapTopology: true,
},
},
}
}
func (h *hostPathDriver) GetDriverInfo() *testsuites.DriverInfo {
return &h.driverInfo
}
func (h *hostPathDriver) SkipUnsupportedTest(pattern testpatterns.TestPattern) {
}
func (h *hostPathDriver) GetVolumeSource(readOnly bool, fsType string, volume testsuites.TestVolume) *v1.VolumeSource {
// hostPath doesn't support readOnly volume
if readOnly {
return nil
}
return &v1.VolumeSource{
HostPath: &v1.HostPathVolumeSource{
Path: "/tmp",
},
}
}
func (h *hostPathDriver) PrepareTest(f *framework.Framework) (*testsuites.PerTestConfig, func()) {
return &testsuites.PerTestConfig{
Driver: h,
Prefix: "hostpath",
Framework: f,
}, func() {}
}
func (h *hostPathDriver) CreateVolume(config *testsuites.PerTestConfig, volType testpatterns.TestVolType) testsuites.TestVolume {
f := config.Framework
cs := f.ClientSet
// pods should be scheduled on the node
node, err := e2enode.GetRandomReadySchedulableNode(cs)
framework.ExpectNoError(err)
config.ClientNodeSelection = e2epod.NodeSelection{Name: node.Name}
return nil
}
// HostPathSymlink
type hostPathSymlinkDriver struct {
driverInfo testsuites.DriverInfo
}
type hostPathSymlinkVolume struct {
targetPath string
sourcePath string
prepPod *v1.Pod
f *framework.Framework
}
var _ testsuites.TestDriver = &hostPathSymlinkDriver{}
var _ testsuites.PreprovisionedVolumeTestDriver = &hostPathSymlinkDriver{}
var _ testsuites.InlineVolumeTestDriver = &hostPathSymlinkDriver{}
// InitHostPathSymlinkDriver returns hostPathSymlinkDriver that implements TestDriver interface
func InitHostPathSymlinkDriver() testsuites.TestDriver {
return &hostPathSymlinkDriver{
driverInfo: testsuites.DriverInfo{
Name: "hostPathSymlink",
InTreePluginName: "kubernetes.io/host-path",
MaxFileSize: testpatterns.FileSizeMedium,
SupportedFsType: sets.NewString(
"", // Default fsType
),
TopologyKeys: []string{v1.LabelHostname},
Capabilities: map[testsuites.Capability]bool{
testsuites.CapPersistence: true,
testsuites.CapMultiPODs: true,
testsuites.CapSingleNodeVolume: true,
testsuites.CapTopology: true,
},
},
}
}
func (h *hostPathSymlinkDriver) GetDriverInfo() *testsuites.DriverInfo {
return &h.driverInfo
}
func (h *hostPathSymlinkDriver) SkipUnsupportedTest(pattern testpatterns.TestPattern) {
}
func (h *hostPathSymlinkDriver) GetVolumeSource(readOnly bool, fsType string, volume testsuites.TestVolume) *v1.VolumeSource {
hv, ok := volume.(*hostPathSymlinkVolume)
framework.ExpectEqual(ok, true, "Failed to cast test volume to Hostpath Symlink test volume")
// hostPathSymlink doesn't support readOnly volume
if readOnly {
return nil
}
return &v1.VolumeSource{
HostPath: &v1.HostPathVolumeSource{
Path: hv.targetPath,
},
}
}
func (h *hostPathSymlinkDriver) PrepareTest(f *framework.Framework) (*testsuites.PerTestConfig, func()) {
return &testsuites.PerTestConfig{
Driver: h,
Prefix: "hostpathsymlink",
Framework: f,
}, func() {}
}
func (h *hostPathSymlinkDriver) CreateVolume(config *testsuites.PerTestConfig, volType testpatterns.TestVolType) testsuites.TestVolume {
f := config.Framework
cs := f.ClientSet
sourcePath := fmt.Sprintf("/tmp/%v", f.Namespace.Name)
targetPath := fmt.Sprintf("/tmp/%v-link", f.Namespace.Name)
volumeName := "test-volume"
// pods should be scheduled on the node
node, err := e2enode.GetRandomReadySchedulableNode(cs)
framework.ExpectNoError(err)
config.ClientNodeSelection = e2epod.NodeSelection{Name: node.Name}
cmd := fmt.Sprintf("mkdir %v -m 777 && ln -s %v %v", sourcePath, sourcePath, targetPath)
privileged := true
// Launch pod to initialize hostPath directory and symlink
prepPod := &v1.Pod{
ObjectMeta: metav1.ObjectMeta{
Name: fmt.Sprintf("hostpath-symlink-prep-%s", f.Namespace.Name),
},
Spec: v1.PodSpec{
Containers: []v1.Container{
{
Name: fmt.Sprintf("init-volume-%s", f.Namespace.Name),
Image: imageutils.GetE2EImage(imageutils.BusyBox),
Command: []string{"/bin/sh", "-ec", cmd},
VolumeMounts: []v1.VolumeMount{
{
Name: volumeName,
MountPath: "/tmp",
},
},
SecurityContext: &v1.SecurityContext{
Privileged: &privileged,
},
},
},
RestartPolicy: v1.RestartPolicyNever,
Volumes: []v1.Volume{
{
Name: volumeName,
VolumeSource: v1.VolumeSource{
HostPath: &v1.HostPathVolumeSource{
Path: "/tmp",
},
},
},
},
NodeName: node.Name,
},
}
// h.prepPod will be reused in cleanupDriver.
pod, err := f.ClientSet.CoreV1().Pods(f.Namespace.Name).Create(context.TODO(), prepPod, metav1.CreateOptions{})
framework.ExpectNoError(err, "while creating hostPath init pod")
err = e2epod.WaitForPodSuccessInNamespace(f.ClientSet, pod.Name, pod.Namespace)
framework.ExpectNoError(err, "while waiting for hostPath init pod to succeed")
err = e2epod.DeletePodWithWait(f.ClientSet, pod)
framework.ExpectNoError(err, "while deleting hostPath init pod")
return &hostPathSymlinkVolume{
sourcePath: sourcePath,
targetPath: targetPath,
prepPod: prepPod,
f: f,
}
}
func (v *hostPathSymlinkVolume) DeleteVolume() {
f := v.f
cmd := fmt.Sprintf("rm -rf %v&& rm -rf %v", v.targetPath, v.sourcePath)
v.prepPod.Spec.Containers[0].Command = []string{"/bin/sh", "-ec", cmd}
pod, err := f.ClientSet.CoreV1().Pods(f.Namespace.Name).Create(context.TODO(), v.prepPod, metav1.CreateOptions{})
framework.ExpectNoError(err, "while creating hostPath teardown pod")
err = e2epod.WaitForPodSuccessInNamespace(f.ClientSet, pod.Name, pod.Namespace)
framework.ExpectNoError(err, "while waiting for hostPath teardown pod to succeed")
err = e2epod.DeletePodWithWait(f.ClientSet, pod)
framework.ExpectNoError(err, "while deleting hostPath teardown pod")
}
// emptydir
type emptydirDriver struct {
driverInfo testsuites.DriverInfo
}
var _ testsuites.TestDriver = &emptydirDriver{}
var _ testsuites.PreprovisionedVolumeTestDriver = &emptydirDriver{}
var _ testsuites.InlineVolumeTestDriver = &emptydirDriver{}
// InitEmptydirDriver returns emptydirDriver that implements TestDriver interface
func InitEmptydirDriver() testsuites.TestDriver {
return &emptydirDriver{
driverInfo: testsuites.DriverInfo{
Name: "emptydir",
InTreePluginName: "kubernetes.io/empty-dir",
MaxFileSize: testpatterns.FileSizeMedium,
SupportedFsType: sets.NewString(
"", // Default fsType
),
Capabilities: map[testsuites.Capability]bool{
testsuites.CapExec: true,
testsuites.CapSingleNodeVolume: true,