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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 (
"fmt"
"math/rand"
"os/exec"
"strings"
"time"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"k8s.io/api/core/v1"
rbacv1beta1 "k8s.io/api/rbac/v1beta1"
storagev1 "k8s.io/api/storage/v1"
"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"
kubeletapis "k8s.io/kubernetes/pkg/kubelet/apis"
"k8s.io/kubernetes/test/e2e/framework"
"k8s.io/kubernetes/test/e2e/storage/testpatterns"
"k8s.io/kubernetes/test/e2e/storage/utils"
vspheretest "k8s.io/kubernetes/test/e2e/storage/vsphere"
imageutils "k8s.io/kubernetes/test/utils/image"
)
// NFS
type nfsDriver struct {
externalProvisionerPod *v1.Pod
externalPluginName string
driverInfo DriverInfo
}
type nfsTestResource struct {
serverIP string
serverPod *v1.Pod
}
var _ TestDriver = &nfsDriver{}
var _ PreprovisionedVolumeTestDriver = &nfsDriver{}
var _ InlineVolumeTestDriver = &nfsDriver{}
var _ PreprovisionedPVTestDriver = &nfsDriver{}
var _ DynamicPVTestDriver = &nfsDriver{}
// InitNFSDriver returns nfsDriver that implements TestDriver interface
func InitNFSDriver() TestDriver {
return &nfsDriver{
driverInfo: DriverInfo{
Name: "nfs",
MaxFileSize: testpatterns.FileSizeLarge,
SupportedFsType: sets.NewString(
"", // Default fsType
),
Capabilities: map[Capability]bool{
CapPersistence: true,
CapExec: true,
},
},
}
}
func (n *nfsDriver) GetDriverInfo() *DriverInfo {
return &n.driverInfo
}
func (n *nfsDriver) SkipUnsupportedTest(pattern testpatterns.TestPattern) {
}
func (n *nfsDriver) GetVolumeSource(readOnly bool, fsType string, testResource interface{}) *v1.VolumeSource {
ntr, ok := testResource.(*nfsTestResource)
Expect(ok).To(BeTrue(), "Failed to cast test resource to NFS Test Resource")
return &v1.VolumeSource{
NFS: &v1.NFSVolumeSource{
Server: ntr.serverIP,
Path: "/",
ReadOnly: readOnly,
},
}
}
func (n *nfsDriver) GetPersistentVolumeSource(readOnly bool, fsType string, testResource interface{}) *v1.PersistentVolumeSource {
ntr, ok := testResource.(*nfsTestResource)
Expect(ok).To(BeTrue(), "Failed to cast test resource to NFS Test Resource")
return &v1.PersistentVolumeSource{
NFS: &v1.NFSVolumeSource{
Server: ntr.serverIP,
Path: "/",
ReadOnly: readOnly,
},
}
}
func (n *nfsDriver) GetDynamicProvisionStorageClass(fsType string) *storagev1.StorageClass {
provisioner := n.externalPluginName
parameters := map[string]string{"mountOptions": "vers=4.1"}
ns := n.driverInfo.Framework.Namespace.Name
suffix := fmt.Sprintf("%s-sc", n.driverInfo.Name)
return getStorageClass(provisioner, parameters, nil, ns, suffix)
}
func (n *nfsDriver) CreateDriver() {
f := n.driverInfo.Framework
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.
framework.BindClusterRole(cs.RbacV1beta1(), "cluster-admin", ns.Name,
rbacv1beta1.Subject{Kind: rbacv1beta1.ServiceAccountKind, Namespace: ns.Name, Name: "default"})
err := framework.WaitForAuthorizationUpdate(cs.AuthorizationV1beta1(),
serviceaccount.MakeUsername(ns.Name, "default"),
"", "get", schema.GroupResource{Group: "storage.k8s.io", Resource: "storageclasses"}, true)
framework.ExpectNoError(err, "Failed to update authorization: %v", err)
By("creating an external dynamic provisioner pod")
n.externalProvisionerPod = utils.StartExternalProvisioner(cs, ns.Name, n.externalPluginName)
}
func (n *nfsDriver) CleanupDriver() {
f := n.driverInfo.Framework
cs := f.ClientSet
ns := f.Namespace
framework.ExpectNoError(framework.DeletePodWithWait(f, cs, n.externalProvisionerPod))
clusterRoleBindingName := ns.Name + "--" + "cluster-admin"
cs.RbacV1beta1().ClusterRoleBindings().Delete(clusterRoleBindingName, metav1.NewDeleteOptions(0))
}
func (n *nfsDriver) CreateVolume(volType testpatterns.TestVolType) interface{} {
f := n.driverInfo.Framework
cs := f.ClientSet
ns := f.Namespace
// NewNFSServer creates a pod for InlineVolume and PreprovisionedPV,
// and startExternalProvisioner creates a pods for DynamicPV.
// Therefore, we need a different CreateDriver logic for volType.
switch volType {
case testpatterns.InlineVolume:
fallthrough
case testpatterns.PreprovisionedPV:
config, serverPod, serverIP := framework.NewNFSServer(cs, ns.Name, []string{})
n.driverInfo.Config = config
return &nfsTestResource{
serverIP: serverIP,
serverPod: serverPod,
}
case testpatterns.DynamicPV:
// Do nothing
default:
framework.Failf("Unsupported volType:%v is specified", volType)
}
return nil
}
func (n *nfsDriver) DeleteVolume(volType testpatterns.TestVolType, testResource interface{}) {
f := n.driverInfo.Framework
ntr, ok := testResource.(*nfsTestResource)
Expect(ok).To(BeTrue(), "Failed to cast test resource to NFS Test Resource")
switch volType {
case testpatterns.InlineVolume:
fallthrough
case testpatterns.PreprovisionedPV:
framework.CleanUpVolumeServer(f, ntr.serverPod)
case testpatterns.DynamicPV:
// Do nothing
default:
framework.Failf("Unsupported volType:%v is specified", volType)
}
}
// Gluster
type glusterFSDriver struct {
driverInfo DriverInfo
}
type glusterTestResource struct {
prefix string
serverPod *v1.Pod
}
var _ TestDriver = &glusterFSDriver{}
var _ PreprovisionedVolumeTestDriver = &glusterFSDriver{}
var _ InlineVolumeTestDriver = &glusterFSDriver{}
var _ PreprovisionedPVTestDriver = &glusterFSDriver{}
// InitGlusterFSDriver returns glusterFSDriver that implements TestDriver interface
func InitGlusterFSDriver() TestDriver {
return &glusterFSDriver{
driverInfo: DriverInfo{
Name: "gluster",
MaxFileSize: testpatterns.FileSizeMedium,
SupportedFsType: sets.NewString(
"", // Default fsType
),
Capabilities: map[Capability]bool{
CapPersistence: true,
CapExec: true,
},
},
}
}
func (g *glusterFSDriver) GetDriverInfo() *DriverInfo {
return &g.driverInfo
}
func (g *glusterFSDriver) SkipUnsupportedTest(pattern testpatterns.TestPattern) {
framework.SkipUnlessNodeOSDistroIs("gci", "ubuntu", "custom")
if pattern.FsType == "xfs" {
framework.SkipUnlessNodeOSDistroIs("ubuntu", "custom")
}
}
func (g *glusterFSDriver) GetVolumeSource(readOnly bool, fsType string, testResource interface{}) *v1.VolumeSource {
gtr, ok := testResource.(*glusterTestResource)
Expect(ok).To(BeTrue(), "Failed to cast test resource to Gluster Test Resource")
name := gtr.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, testResource interface{}) *v1.PersistentVolumeSource {
gtr, ok := testResource.(*glusterTestResource)
Expect(ok).To(BeTrue(), "Failed to cast test resource to Gluster Test Resource")
name := gtr.prefix + "-server"
return &v1.PersistentVolumeSource{
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) CreateDriver() {
}
func (g *glusterFSDriver) CleanupDriver() {
}
func (g *glusterFSDriver) CreateVolume(volType testpatterns.TestVolType) interface{} {
f := g.driverInfo.Framework
cs := f.ClientSet
ns := f.Namespace
config, serverPod, _ := framework.NewGlusterfsServer(cs, ns.Name)
g.driverInfo.Config = config
return &glusterTestResource{
prefix: config.Prefix,
serverPod: serverPod,
}
}
func (g *glusterFSDriver) DeleteVolume(volType testpatterns.TestVolType, testResource interface{}) {
f := g.driverInfo.Framework
cs := f.ClientSet
ns := f.Namespace
gtr, ok := testResource.(*glusterTestResource)
Expect(ok).To(BeTrue(), "Failed to cast test resource to Gluster Test Resource")
name := gtr.prefix + "-server"
framework.Logf("Deleting Gluster endpoints %q...", name)
err := cs.CoreV1().Endpoints(ns.Name).Delete(name, nil)
if err != nil {
if !errors.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...", gtr.serverPod.Name)
err = framework.DeletePodWithWait(f, cs, gtr.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 DriverInfo
}
type iSCSITestResource struct {
serverPod *v1.Pod
serverIP string
}
var _ TestDriver = &iSCSIDriver{}
var _ PreprovisionedVolumeTestDriver = &iSCSIDriver{}
var _ InlineVolumeTestDriver = &iSCSIDriver{}
var _ PreprovisionedPVTestDriver = &iSCSIDriver{}
// InitISCSIDriver returns iSCSIDriver that implements TestDriver interface
func InitISCSIDriver() TestDriver {
return &iSCSIDriver{
driverInfo: DriverInfo{
Name: "iscsi",
FeatureTag: "[Feature:Volumes]",
MaxFileSize: testpatterns.FileSizeMedium,
SupportedFsType: sets.NewString(
"", // Default fsType
"ext2",
// TODO: fix iSCSI driver can work with ext3
//"ext3",
"ext4",
),
Capabilities: map[Capability]bool{
CapPersistence: true,
CapFsGroup: true,
CapBlock: true,
CapExec: true,
},
},
}
}
func (i *iSCSIDriver) GetDriverInfo() *DriverInfo {
return &i.driverInfo
}
func (i *iSCSIDriver) SkipUnsupportedTest(pattern testpatterns.TestPattern) {
}
func (i *iSCSIDriver) GetVolumeSource(readOnly bool, fsType string, testResource interface{}) *v1.VolumeSource {
itr, ok := testResource.(*iSCSITestResource)
Expect(ok).To(BeTrue(), "Failed to cast test resource to iSCSI Test Resource")
volSource := v1.VolumeSource{
ISCSI: &v1.ISCSIVolumeSource{
TargetPortal: itr.serverIP + ":3260",
// from test/images/volume/iscsi/initiatorname.iscsi
IQN: "iqn.2003-01.org.linux-iscsi.f21.x8664:sn.4b0aae584f7c",
Lun: 0,
ReadOnly: readOnly,
},
}
if fsType != "" {
volSource.ISCSI.FSType = fsType
}
return &volSource
}
func (i *iSCSIDriver) GetPersistentVolumeSource(readOnly bool, fsType string, testResource interface{}) *v1.PersistentVolumeSource {
itr, ok := testResource.(*iSCSITestResource)
Expect(ok).To(BeTrue(), "Failed to cast test resource to iSCSI Test Resource")
pvSource := v1.PersistentVolumeSource{
ISCSI: &v1.ISCSIPersistentVolumeSource{
TargetPortal: itr.serverIP + ":3260",
IQN: "iqn.2003-01.org.linux-iscsi.f21.x8664:sn.4b0aae584f7c",
Lun: 0,
ReadOnly: readOnly,
},
}
if fsType != "" {
pvSource.ISCSI.FSType = fsType
}
return &pvSource
}
func (i *iSCSIDriver) CreateDriver() {
}
func (i *iSCSIDriver) CleanupDriver() {
}
func (i *iSCSIDriver) CreateVolume(volType testpatterns.TestVolType) interface{} {
f := i.driverInfo.Framework
cs := f.ClientSet
ns := f.Namespace
config, serverPod, serverIP := framework.NewISCSIServer(cs, ns.Name)
i.driverInfo.Config = config
return &iSCSITestResource{
serverPod: serverPod,
serverIP: serverIP,
}
}
func (i *iSCSIDriver) DeleteVolume(volType testpatterns.TestVolType, testResource interface{}) {
f := i.driverInfo.Framework
itr, ok := testResource.(*iSCSITestResource)
Expect(ok).To(BeTrue(), "Failed to cast test resource to iSCSI Test Resource")
framework.CleanUpVolumeServer(f, itr.serverPod)
}
// Ceph RBD
type rbdDriver struct {
driverInfo DriverInfo
}
type rbdTestResource struct {
serverPod *v1.Pod
serverIP string
secret *v1.Secret
}
var _ TestDriver = &rbdDriver{}
var _ PreprovisionedVolumeTestDriver = &rbdDriver{}
var _ InlineVolumeTestDriver = &rbdDriver{}
var _ PreprovisionedPVTestDriver = &rbdDriver{}
// InitRbdDriver returns rbdDriver that implements TestDriver interface
func InitRbdDriver() TestDriver {
return &rbdDriver{
driverInfo: DriverInfo{
Name: "rbd",
FeatureTag: "[Feature:Volumes]",
MaxFileSize: testpatterns.FileSizeMedium,
SupportedFsType: sets.NewString(
"", // Default fsType
"ext2",
// TODO: fix rbd driver can work with ext3
//"ext3",
"ext4",
),
Capabilities: map[Capability]bool{
CapPersistence: true,
CapFsGroup: true,
CapBlock: true,
CapExec: true,
},
},
}
}
func (r *rbdDriver) GetDriverInfo() *DriverInfo {
return &r.driverInfo
}
func (r *rbdDriver) SkipUnsupportedTest(pattern testpatterns.TestPattern) {
}
func (r *rbdDriver) GetVolumeSource(readOnly bool, fsType string, testResource interface{}) *v1.VolumeSource {
rtr, ok := testResource.(*rbdTestResource)
Expect(ok).To(BeTrue(), "Failed to cast test resource to RBD Test Resource")
volSource := v1.VolumeSource{
RBD: &v1.RBDVolumeSource{
CephMonitors: []string{rtr.serverIP},
RBDPool: "rbd",
RBDImage: "foo",
RadosUser: "admin",
SecretRef: &v1.LocalObjectReference{
Name: rtr.secret.Name,
},
ReadOnly: readOnly,
},
}
if fsType != "" {
volSource.RBD.FSType = fsType
}
return &volSource
}
func (r *rbdDriver) GetPersistentVolumeSource(readOnly bool, fsType string, testResource interface{}) *v1.PersistentVolumeSource {
f := r.driverInfo.Framework
ns := f.Namespace
rtr, ok := testResource.(*rbdTestResource)
Expect(ok).To(BeTrue(), "Failed to cast test resource to RBD Test Resource")
pvSource := v1.PersistentVolumeSource{
RBD: &v1.RBDPersistentVolumeSource{
CephMonitors: []string{rtr.serverIP},
RBDPool: "rbd",
RBDImage: "foo",
RadosUser: "admin",
SecretRef: &v1.SecretReference{
Name: rtr.secret.Name,
Namespace: ns.Name,
},
ReadOnly: readOnly,
},
}
if fsType != "" {
pvSource.RBD.FSType = fsType
}
return &pvSource
}
func (r *rbdDriver) CreateDriver() {
}
func (r *rbdDriver) CleanupDriver() {
}
func (r *rbdDriver) CreateVolume(volType testpatterns.TestVolType) interface{} {
f := r.driverInfo.Framework
cs := f.ClientSet
ns := f.Namespace
config, serverPod, secret, serverIP := framework.NewRBDServer(cs, ns.Name)
r.driverInfo.Config = config
return &rbdTestResource{
serverPod: serverPod,
serverIP: serverIP,
secret: secret,
}
}
func (r *rbdDriver) DeleteVolume(volType testpatterns.TestVolType, testResource interface{}) {
f := r.driverInfo.Framework
rtr, ok := testResource.(*rbdTestResource)
Expect(ok).To(BeTrue(), "Failed to cast test resource to RBD Test Resource")
framework.CleanUpVolumeServerWithSecret(f, rtr.serverPod, rtr.secret)
}
// Ceph
type cephFSDriver struct {
serverIP string
serverPod *v1.Pod
secret *v1.Secret
driverInfo DriverInfo
}
type cephTestResource struct {
serverPod *v1.Pod
serverIP string
secret *v1.Secret
}
var _ TestDriver = &cephFSDriver{}
var _ PreprovisionedVolumeTestDriver = &cephFSDriver{}
var _ InlineVolumeTestDriver = &cephFSDriver{}
var _ PreprovisionedPVTestDriver = &cephFSDriver{}
// InitCephFSDriver returns cephFSDriver that implements TestDriver interface
func InitCephFSDriver() TestDriver {
return &cephFSDriver{
driverInfo: DriverInfo{
Name: "ceph",
FeatureTag: "[Feature:Volumes]",
MaxFileSize: testpatterns.FileSizeMedium,
SupportedFsType: sets.NewString(
"", // Default fsType
),
Capabilities: map[Capability]bool{
CapPersistence: true,
CapExec: true,
},
},
}
}
func (c *cephFSDriver) GetDriverInfo() *DriverInfo {
return &c.driverInfo
}
func (c *cephFSDriver) SkipUnsupportedTest(pattern testpatterns.TestPattern) {
}
func (c *cephFSDriver) GetVolumeSource(readOnly bool, fsType string, testResource interface{}) *v1.VolumeSource {
ctr, ok := testResource.(*cephTestResource)
Expect(ok).To(BeTrue(), "Failed to cast test resource to Ceph Test Resource")
return &v1.VolumeSource{
CephFS: &v1.CephFSVolumeSource{
Monitors: []string{ctr.serverIP + ":6789"},
User: "kube",
SecretRef: &v1.LocalObjectReference{
Name: ctr.secret.Name,
},
ReadOnly: readOnly,
},
}
}
func (c *cephFSDriver) GetPersistentVolumeSource(readOnly bool, fsType string, testResource interface{}) *v1.PersistentVolumeSource {
f := c.driverInfo.Framework
ns := f.Namespace
ctr, ok := testResource.(*cephTestResource)
Expect(ok).To(BeTrue(), "Failed to cast test resource to Ceph Test Resource")
return &v1.PersistentVolumeSource{
CephFS: &v1.CephFSPersistentVolumeSource{
Monitors: []string{ctr.serverIP + ":6789"},
User: "kube",
SecretRef: &v1.SecretReference{
Name: ctr.secret.Name,
Namespace: ns.Name,
},
ReadOnly: readOnly,
},
}
}
func (c *cephFSDriver) CreateDriver() {
}
func (c *cephFSDriver) CleanupDriver() {
}
func (c *cephFSDriver) CreateVolume(volType testpatterns.TestVolType) interface{} {
f := c.driverInfo.Framework
cs := f.ClientSet
ns := f.Namespace
config, serverPod, secret, serverIP := framework.NewRBDServer(cs, ns.Name)
c.driverInfo.Config = config
return &cephTestResource{
serverPod: serverPod,
serverIP: serverIP,
secret: secret,
}
}
func (c *cephFSDriver) DeleteVolume(volType testpatterns.TestVolType, testResource interface{}) {
f := c.driverInfo.Framework
ctr, ok := testResource.(*cephTestResource)
Expect(ok).To(BeTrue(), "Failed to cast test resource to Ceph Test Resource")
framework.CleanUpVolumeServerWithSecret(f, ctr.serverPod, ctr.secret)
}
// Hostpath
type hostPathDriver struct {
node v1.Node
driverInfo DriverInfo
}
var _ TestDriver = &hostPathDriver{}
var _ PreprovisionedVolumeTestDriver = &hostPathDriver{}
var _ InlineVolumeTestDriver = &hostPathDriver{}
// InitHostpathDriver returns hostPathDriver that implements TestDriver interface
func InitHostPathDriver() TestDriver {
return &hostPathDriver{
driverInfo: DriverInfo{
Name: "hostPath",
MaxFileSize: testpatterns.FileSizeMedium,
SupportedFsType: sets.NewString(
"", // Default fsType
),
Capabilities: map[Capability]bool{
CapPersistence: true,
},
},
}
}
func (h *hostPathDriver) GetDriverInfo() *DriverInfo {
return &h.driverInfo
}
func (h *hostPathDriver) SkipUnsupportedTest(pattern testpatterns.TestPattern) {
}
func (h *hostPathDriver) GetVolumeSource(readOnly bool, fsType string, testResource interface{}) *v1.VolumeSource {
// hostPath doesn't support readOnly volume
if readOnly {
return nil
}
return &v1.VolumeSource{
HostPath: &v1.HostPathVolumeSource{
Path: "/tmp",
},
}
}
func (h *hostPathDriver) CreateDriver() {
}
func (h *hostPathDriver) CleanupDriver() {
}
func (h *hostPathDriver) CreateVolume(volType testpatterns.TestVolType) interface{} {
f := h.driverInfo.Framework
cs := f.ClientSet
// pods should be scheduled on the node
nodes := framework.GetReadySchedulableNodesOrDie(cs)
node := nodes.Items[rand.Intn(len(nodes.Items))]
h.driverInfo.Config.ClientNodeName = node.Name
return nil
}
func (h *hostPathDriver) DeleteVolume(volType testpatterns.TestVolType, testResource interface{}) {
}
// HostPathSymlink
type hostPathSymlinkDriver struct {
node v1.Node
driverInfo DriverInfo
}
type hostPathSymlinkTestResource struct {
targetPath string
sourcePath string
prepPod *v1.Pod
}
var _ TestDriver = &hostPathSymlinkDriver{}
var _ PreprovisionedVolumeTestDriver = &hostPathSymlinkDriver{}
var _ InlineVolumeTestDriver = &hostPathSymlinkDriver{}
// InitHostPathSymlinkDriver returns hostPathSymlinkDriver that implements TestDriver interface
func InitHostPathSymlinkDriver() TestDriver {
return &hostPathSymlinkDriver{
driverInfo: DriverInfo{
Name: "hostPathSymlink",
MaxFileSize: testpatterns.FileSizeMedium,
SupportedFsType: sets.NewString(
"", // Default fsType
),
Capabilities: map[Capability]bool{
CapPersistence: true,
},
},
}
}
func (h *hostPathSymlinkDriver) GetDriverInfo() *DriverInfo {
return &h.driverInfo
}
func (h *hostPathSymlinkDriver) SkipUnsupportedTest(pattern testpatterns.TestPattern) {
}
func (h *hostPathSymlinkDriver) GetVolumeSource(readOnly bool, fsType string, testResource interface{}) *v1.VolumeSource {
htr, ok := testResource.(*hostPathSymlinkTestResource)
Expect(ok).To(BeTrue(), "Failed to cast test resource to Hostpath Symlink Test Resource")
// hostPathSymlink doesn't support readOnly volume
if readOnly {
return nil
}
return &v1.VolumeSource{
HostPath: &v1.HostPathVolumeSource{
Path: htr.targetPath,
},
}
}
func (h *hostPathSymlinkDriver) CreateDriver() {
}
func (h *hostPathSymlinkDriver) CleanupDriver() {
}
func (h *hostPathSymlinkDriver) CreateVolume(volType testpatterns.TestVolType) interface{} {
f := h.driverInfo.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
nodes := framework.GetReadySchedulableNodesOrDie(cs)
node := nodes.Items[rand.Intn(len(nodes.Items))]
h.driverInfo.Config.ClientNodeName = 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(prepPod)
Expect(err).ToNot(HaveOccurred(), "while creating hostPath init pod")
err = framework.WaitForPodSuccessInNamespace(f.ClientSet, pod.Name, pod.Namespace)
Expect(err).ToNot(HaveOccurred(), "while waiting for hostPath init pod to succeed")
err = framework.DeletePodWithWait(f, f.ClientSet, pod)
Expect(err).ToNot(HaveOccurred(), "while deleting hostPath init pod")
return &hostPathSymlinkTestResource{
sourcePath: sourcePath,
targetPath: targetPath,
prepPod: prepPod,
}
}
func (h *hostPathSymlinkDriver) DeleteVolume(volType testpatterns.TestVolType, testResource interface{}) {
f := h.driverInfo.Framework
htr, ok := testResource.(*hostPathSymlinkTestResource)
Expect(ok).To(BeTrue(), "Failed to cast test resource to Hostpath Symlink Test Resource")
cmd := fmt.Sprintf("rm -rf %v&& rm -rf %v", htr.targetPath, htr.sourcePath)
htr.prepPod.Spec.Containers[0].Command = []string{"/bin/sh", "-ec", cmd}
pod, err := f.ClientSet.CoreV1().Pods(f.Namespace.Name).Create(htr.prepPod)
Expect(err).ToNot(HaveOccurred(), "while creating hostPath teardown pod")
err = framework.WaitForPodSuccessInNamespace(f.ClientSet, pod.Name, pod.Namespace)
Expect(err).ToNot(HaveOccurred(), "while waiting for hostPath teardown pod to succeed")
err = framework.DeletePodWithWait(f, f.ClientSet, pod)
Expect(err).ToNot(HaveOccurred(), "while deleting hostPath teardown pod")
}
// emptydir
type emptydirDriver struct {
driverInfo DriverInfo
}
var _ TestDriver = &emptydirDriver{}
var _ PreprovisionedVolumeTestDriver = &emptydirDriver{}
var _ InlineVolumeTestDriver = &emptydirDriver{}
// InitEmptydirDriver returns emptydirDriver that implements TestDriver interface
func InitEmptydirDriver() TestDriver {
return &emptydirDriver{
driverInfo: DriverInfo{
Name: "emptydir",
MaxFileSize: testpatterns.FileSizeMedium,
SupportedFsType: sets.NewString(
"", // Default fsType
),
Capabilities: map[Capability]bool{
CapExec: true,
},
},
}
}
func (e *emptydirDriver) GetDriverInfo() *DriverInfo {
return &e.driverInfo
}
func (e *emptydirDriver) SkipUnsupportedTest(pattern testpatterns.TestPattern) {
}
func (e *emptydirDriver) GetVolumeSource(readOnly bool, fsType string, testResource interface{}) *v1.VolumeSource {
// emptydir doesn't support readOnly volume
if readOnly {
return nil
}
return &v1.VolumeSource{
EmptyDir: &v1.EmptyDirVolumeSource{},
}
}
func (e *emptydirDriver) CreateVolume(volType testpatterns.TestVolType) interface{} {
return nil
}
func (e *emptydirDriver) DeleteVolume(volType testpatterns.TestVolType, testResource interface{}) {
}
func (e *emptydirDriver) CreateDriver() {
}
func (e *emptydirDriver) CleanupDriver() {
}
// Cinder
// This driver assumes that OpenStack client tools are installed
// (/usr/bin/nova, /usr/bin/cinder and /usr/bin/keystone)
// and that the usual OpenStack authentication env. variables are set
// (OS_USERNAME, OS_PASSWORD, OS_TENANT_NAME at least).
type cinderDriver struct {
driverInfo DriverInfo
}
type cinderTestResource struct {
volumeName string
volumeID string
}
var _ TestDriver = &cinderDriver{}
var _ PreprovisionedVolumeTestDriver = &cinderDriver{}
var _ InlineVolumeTestDriver = &cinderDriver{}
var _ PreprovisionedPVTestDriver = &cinderDriver{}
var _ DynamicPVTestDriver = &cinderDriver{}
// InitCinderDriver returns cinderDriver that implements TestDriver interface
func InitCinderDriver() TestDriver {
return &cinderDriver{
driverInfo: DriverInfo{
Name: "cinder",
MaxFileSize: testpatterns.FileSizeMedium,
SupportedFsType: sets.NewString(
"", // Default fsType
"ext3",
),
Capabilities: map[Capability]bool{
CapPersistence: true,
CapFsGroup: true,
CapExec: true,
},
},
}
}
func (c *cinderDriver) GetDriverInfo() *DriverInfo {
return &c.driverInfo
}
func (c *cinderDriver) SkipUnsupportedTest(pattern testpatterns.TestPattern) {
framework.SkipUnlessProviderIs("openstack")
}
func (c *cinderDriver) GetVolumeSource(readOnly bool, fsType string, testResource interface{}) *v1.VolumeSource {
ctr, ok := testResource.(*cinderTestResource)
Expect(ok).To(BeTrue(), "Failed to cast test resource to Cinder Test Resource")
volSource := v1.VolumeSource{
Cinder: &v1.CinderVolumeSource{
VolumeID: ctr.volumeID,
ReadOnly: readOnly,
},
}