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Enhance and refactor volume test util functions

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Fix bash command's execution in MakePod().
Add isPriviledged as a parameter to MakePod().
Move PD utils to pv_util.go

Ran all the tests in pd.go, persistent_volumes.go,
persistent_volumes-disruptive.go.

These changes are needed for the PV upgrade test I am working on.
This commit is contained in:
Michelle Au 2017-02-22 16:49:36 -08:00
parent c4e3ed51bc
commit c522b77505
7 changed files with 144 additions and 132 deletions
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1
test/e2e/BUILD
View File

@ -159,7 +159,6 @@ go_library(
"//test/images/net/nat:go_default_library",
"//test/utils:go_default_library",
"//vendor:github.com/aws/aws-sdk-go/aws",
"//vendor:github.com/aws/aws-sdk-go/aws/awserr",
"//vendor:github.com/aws/aws-sdk-go/aws/session",
"//vendor:github.com/aws/aws-sdk-go/service/autoscaling",
"//vendor:github.com/aws/aws-sdk-go/service/ec2",

5
test/e2e/framework/BUILD
View File

@ -54,6 +54,7 @@ go_library(
"//pkg/client/conditions:go_default_library",
"//pkg/client/unversioned/remotecommand:go_default_library",
"//pkg/cloudprovider:go_default_library",
"//pkg/cloudprovider/providers/aws:go_default_library",
"//pkg/cloudprovider/providers/gce:go_default_library",
"//pkg/controller:go_default_library",
"//pkg/controller/deployment/util:go_default_library",
@ -76,6 +77,10 @@ go_library(
"//test/e2e/generated:go_default_library",
"//test/e2e/perftype:go_default_library",
"//test/utils:go_default_library",
"//vendor:github.com/aws/aws-sdk-go/aws",
"//vendor:github.com/aws/aws-sdk-go/aws/awserr",
"//vendor:github.com/aws/aws-sdk-go/aws/session",
"//vendor:github.com/aws/aws-sdk-go/service/ec2",
"//vendor:github.com/golang/glog",
"//vendor:github.com/google/cadvisor/info/v1",
"//vendor:github.com/onsi/ginkgo",

130
test/e2e/framework/pv_util.go
View File

@ -18,20 +18,34 @@ package framework
import (
"fmt"
"strings"
"time"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/ec2"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"google.golang.org/api/googleapi"
apierrs "k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/api/resource"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/types"
"k8s.io/apimachinery/pkg/util/uuid"
"k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/pkg/api/v1"
"k8s.io/kubernetes/pkg/client/clientset_generated/clientset"
awscloud "k8s.io/kubernetes/pkg/cloudprovider/providers/aws"
gcecloud "k8s.io/kubernetes/pkg/cloudprovider/providers/gce"
"k8s.io/kubernetes/pkg/volume/util/volumehelper"
)
const (
PDRetryTimeout = 5 * time.Minute
PDRetryPollTime = 5 * time.Second
)
// Map of all PVs used in the multi pv-pvc tests. The key is the PV's name, which is
// guaranteed to be unique. The value is {} (empty struct) since we're only interested
// in the PV's name and if it is present. We must always Get the pv object before
@ -506,17 +520,16 @@ func MakePersistentVolumeClaim(ns string) *v1.PersistentVolumeClaim {
// Returns a pod definition based on the namespace. The pod references the PVC's
// name.
func MakeWritePod(ns string, pvcName string) *v1.Pod {
return MakePod(ns, pvcName, "touch /mnt/SUCCESS && (id -G | grep -E '\\b777\\b')")
return MakePod(ns, pvcName, true, "touch /mnt/SUCCESS && (id -G | grep -E '\\b777\\b')")
}
// Returns a pod definition based on the namespace. The pod references the PVC's
// name. A slice of BASH commands can be supplied as args to be run by the pod
func MakePod(ns string, pvcName string, command ...string) *v1.Pod {
func MakePod(ns string, pvcName string, isPrivileged bool, command string) *v1.Pod {
if len(command) == 0 {
command = []string{"while true; do sleep 1; done"}
command = "while true; do sleep 1; done"
}
var isPrivileged bool = true
return &v1.Pod{
TypeMeta: metav1.TypeMeta{
Kind: "Pod",
@ -531,8 +544,8 @@ func MakePod(ns string, pvcName string, command ...string) *v1.Pod {
{
Name: "write-pod",
Image: "gcr.io/google_containers/busybox:1.24",
Command: []string{"/bin/sh", "-c"},
Args: command,
Command: []string{"/bin/sh"},
Args: []string{"-c", command},
VolumeMounts: []v1.VolumeMount{
{
Name: pvcName,
@ -561,7 +574,7 @@ func MakePod(ns string, pvcName string, command ...string) *v1.Pod {
// Define and create a pod with a mounted PV. Pod runs infinite loop until killed.
func CreateClientPod(c clientset.Interface, ns string, pvc *v1.PersistentVolumeClaim) *v1.Pod {
clientPod := MakePod(ns, pvc.Name)
clientPod := MakePod(ns, pvc.Name, true, "")
clientPod, err := c.Core().Pods(ns).Create(clientPod)
Expect(err).NotTo(HaveOccurred())
@ -572,3 +585,106 @@ func CreateClientPod(c clientset.Interface, ns string, pvc *v1.PersistentVolumeC
Expect(apierrs.IsNotFound(err)).To(BeFalse())
return clientPod
}
func CreatePDWithRetry() (string, error) {
newDiskName := ""
var err error
for start := time.Now(); time.Since(start) < PDRetryTimeout; time.Sleep(PDRetryPollTime) {
if newDiskName, err = createPD(); err != nil {
Logf("Couldn't create a new PD. Sleeping 5 seconds (%v)", err)
continue
}
Logf("Successfully created a new PD: %q.", newDiskName)
break
}
return newDiskName, err
}
func DeletePDWithRetry(diskName string) {
var err error
for start := time.Now(); time.Since(start) < PDRetryTimeout; time.Sleep(PDRetryPollTime) {
if err = deletePD(diskName); err != nil {
Logf("Couldn't delete PD %q. Sleeping 5 seconds (%v)", diskName, err)
continue
}
Logf("Successfully deleted PD %q.", diskName)
break
}
ExpectNoError(err, "Error deleting PD")
}
func createPD() (string, error) {
if TestContext.Provider == "gce" || TestContext.Provider == "gke" {
pdName := fmt.Sprintf("%s-%s", TestContext.Prefix, string(uuid.NewUUID()))
gceCloud, err := GetGCECloud()
if err != nil {
return "", err
}
tags := map[string]string{}
err = gceCloud.CreateDisk(pdName, gcecloud.DiskTypeSSD, TestContext.CloudConfig.Zone, 10 /* sizeGb */, tags)
if err != nil {
return "", err
}
return pdName, nil
} else if TestContext.Provider == "aws" {
client := ec2.New(session.New())
request := &ec2.CreateVolumeInput{}
request.AvailabilityZone = aws.String(TestContext.CloudConfig.Zone)
request.Size = aws.Int64(10)
request.VolumeType = aws.String(awscloud.DefaultVolumeType)
response, err := client.CreateVolume(request)
if err != nil {
return "", err
}
az := aws.StringValue(response.AvailabilityZone)
awsID := aws.StringValue(response.VolumeId)
volumeName := "aws://" + az + "/" + awsID
return volumeName, nil
} else {
return "", fmt.Errorf("Provider does not support volume creation")
}
}
func deletePD(pdName string) error {
if TestContext.Provider == "gce" || TestContext.Provider == "gke" {
gceCloud, err := GetGCECloud()
if err != nil {
return err
}
err = gceCloud.DeleteDisk(pdName)
if err != nil {
if gerr, ok := err.(*googleapi.Error); ok && len(gerr.Errors) > 0 && gerr.Errors[0].Reason == "notFound" {
// PD already exists, ignore error.
return nil
}
Logf("Error deleting PD %q: %v", pdName, err)
}
return err
} else if TestContext.Provider == "aws" {
client := ec2.New(session.New())
tokens := strings.Split(pdName, "/")
awsVolumeID := tokens[len(tokens)-1]
request := &ec2.DeleteVolumeInput{VolumeId: aws.String(awsVolumeID)}
_, err := client.DeleteVolume(request)
if err != nil {
if awsError, ok := err.(awserr.Error); ok && awsError.Code() == "InvalidVolume.NotFound" {
Logf("Volume deletion implicitly succeeded because volume %q does not exist.", pdName)
} else {
return fmt.Errorf("error deleting EBS volumes: %v", err)
}
}
return nil
} else {
return fmt.Errorf("Provider does not support volume deletion")
}
}

128
test/e2e/pd.go
View File

@ -26,7 +26,6 @@ import (
"google.golang.org/api/googleapi"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/ec2"
. "github.com/onsi/ginkgo"
@ -38,8 +37,6 @@ import (
"k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/pkg/api/v1"
v1core "k8s.io/kubernetes/pkg/client/clientset_generated/clientset/typed/core/v1"
awscloud "k8s.io/kubernetes/pkg/cloudprovider/providers/aws"
gcecloud "k8s.io/kubernetes/pkg/cloudprovider/providers/gce"
"k8s.io/kubernetes/test/e2e/framework"
)
@ -48,8 +45,6 @@ const (
gcePDDetachPollTime = 10 * time.Second
nodeStatusTimeout = 1 * time.Minute
nodeStatusPollTime = 1 * time.Second
gcePDRetryTimeout = 5 * time.Minute
gcePDRetryPollTime = 5 * time.Second
maxReadRetry = 3
)
@ -82,7 +77,7 @@ var _ = framework.KubeDescribe("Pod Disks", func() {
framework.SkipUnlessProviderIs("gce", "gke", "aws")
By("creating PD")
diskName, err := createPDWithRetry()
diskName, err := framework.CreatePDWithRetry()
framework.ExpectNoError(err, "Error creating PD")
host0Pod := testPDPod([]string{diskName}, host0Name, false /* readOnly */, 1 /* numContainers */)
@ -146,7 +141,7 @@ var _ = framework.KubeDescribe("Pod Disks", func() {
framework.SkipUnlessProviderIs("gce", "gke", "aws")
By("creating PD")
diskName, err := createPDWithRetry()
diskName, err := framework.CreatePDWithRetry()
framework.ExpectNoError(err, "Error creating PD")
host0Pod := testPDPod([]string{diskName}, host0Name, false /* readOnly */, 1 /* numContainers */)
@ -210,7 +205,7 @@ var _ = framework.KubeDescribe("Pod Disks", func() {
framework.SkipUnlessProviderIs("gce", "gke")
By("creating PD")
diskName, err := createPDWithRetry()
diskName, err := framework.CreatePDWithRetry()
framework.ExpectNoError(err, "Error creating PD")
rwPod := testPDPod([]string{diskName}, host0Name, false /* readOnly */, 1 /* numContainers */)
@ -262,7 +257,7 @@ var _ = framework.KubeDescribe("Pod Disks", func() {
framework.SkipUnlessProviderIs("gce", "gke")
By("creating PD")
diskName, err := createPDWithRetry()
diskName, err := framework.CreatePDWithRetry()
framework.ExpectNoError(err, "Error creating PD")
rwPod := testPDPod([]string{diskName}, host0Name, false /* readOnly */, 1 /* numContainers */)
@ -314,7 +309,7 @@ var _ = framework.KubeDescribe("Pod Disks", func() {
framework.SkipUnlessProviderIs("gce", "gke", "aws")
By("creating PD")
diskName, err := createPDWithRetry()
diskName, err := framework.CreatePDWithRetry()
framework.ExpectNoError(err, "Error creating PD")
numContainers := 4
var host0Pod *v1.Pod
@ -367,10 +362,10 @@ var _ = framework.KubeDescribe("Pod Disks", func() {
framework.SkipUnlessProviderIs("gce", "gke", "aws")
By("creating PD1")
disk1Name, err := createPDWithRetry()
disk1Name, err := framework.CreatePDWithRetry()
framework.ExpectNoError(err, "Error creating PD1")
By("creating PD2")
disk2Name, err := createPDWithRetry()
disk2Name, err := framework.CreatePDWithRetry()
framework.ExpectNoError(err, "Error creating PD2")
var host0Pod *v1.Pod
@ -430,7 +425,7 @@ var _ = framework.KubeDescribe("Pod Disks", func() {
framework.ExpectNoError(err, "Error getting group size")
By("Creating a pd")
diskName, err := createPDWithRetry()
diskName, err := framework.CreatePDWithRetry()
framework.ExpectNoError(err, "Error creating a pd")
host0Pod := testPDPod([]string{diskName}, host0Name, false, 1)
@ -483,7 +478,7 @@ var _ = framework.KubeDescribe("Pod Disks", func() {
initialGroupSize, err := GroupSize(framework.TestContext.CloudConfig.NodeInstanceGroup)
framework.ExpectNoError(err, "Error getting group size")
By("Creating a pd")
diskName, err := createPDWithRetry()
diskName, err := framework.CreatePDWithRetry()
framework.ExpectNoError(err, "Error creating a pd")
host0Pod := testPDPod([]string{diskName}, host0Name, false, 1)
@ -531,33 +526,6 @@ var _ = framework.KubeDescribe("Pod Disks", func() {
})
})
func createPDWithRetry() (string, error) {
newDiskName := ""
var err error
for start := time.Now(); time.Since(start) < gcePDRetryTimeout; time.Sleep(gcePDRetryPollTime) {
if newDiskName, err = createPD(); err != nil {
framework.Logf("Couldn't create a new PD. Sleeping 5 seconds (%v)", err)
continue
}
framework.Logf("Successfully created a new PD: %q.", newDiskName)
break
}
return newDiskName, err
}
func deletePDWithRetry(diskName string) {
var err error
for start := time.Now(); time.Since(start) < gcePDRetryTimeout; time.Sleep(gcePDRetryPollTime) {
if err = deletePD(diskName); err != nil {
framework.Logf("Couldn't delete PD %q. Sleeping 5 seconds (%v)", diskName, err)
continue
}
framework.Logf("Successfully deleted PD %q.", diskName)
break
}
framework.ExpectNoError(err, "Error deleting PD")
}
func verifyPDContentsViaContainer(f *framework.Framework, podName, containerName string, fileAndContentToVerify map[string]string) {
for filePath, expectedContents := range fileAndContentToVerify {
var value string
@ -585,82 +553,6 @@ func verifyPDContentsViaContainer(f *framework.Framework, podName, containerName
}
}
func createPD() (string, error) {
if framework.TestContext.Provider == "gce" || framework.TestContext.Provider == "gke" {
pdName := fmt.Sprintf("%s-%s", framework.TestContext.Prefix, string(uuid.NewUUID()))
gceCloud, err := framework.GetGCECloud()
if err != nil {
return "", err
}
tags := map[string]string{}
err = gceCloud.CreateDisk(pdName, gcecloud.DiskTypeSSD, framework.TestContext.CloudConfig.Zone, 10 /* sizeGb */, tags)
if err != nil {
return "", err
}
return pdName, nil
} else if framework.TestContext.Provider == "aws" {
client := ec2.New(session.New())
request := &ec2.CreateVolumeInput{}
request.AvailabilityZone = aws.String(cloudConfig.Zone)
request.Size = aws.Int64(10)
request.VolumeType = aws.String(awscloud.DefaultVolumeType)
response, err := client.CreateVolume(request)
if err != nil {
return "", err
}
az := aws.StringValue(response.AvailabilityZone)
awsID := aws.StringValue(response.VolumeId)
volumeName := "aws://" + az + "/" + awsID
return volumeName, nil
} else {
return "", fmt.Errorf("Provider does not support volume creation")
}
}
func deletePD(pdName string) error {
if framework.TestContext.Provider == "gce" || framework.TestContext.Provider == "gke" {
gceCloud, err := framework.GetGCECloud()
if err != nil {
return err
}
err = gceCloud.DeleteDisk(pdName)
if err != nil {
if gerr, ok := err.(*googleapi.Error); ok && len(gerr.Errors) > 0 && gerr.Errors[0].Reason == "notFound" {
// PD already exists, ignore error.
return nil
}
framework.Logf("Error deleting PD %q: %v", pdName, err)
}
return err
} else if framework.TestContext.Provider == "aws" {
client := ec2.New(session.New())
tokens := strings.Split(pdName, "/")
awsVolumeID := tokens[len(tokens)-1]
request := &ec2.DeleteVolumeInput{VolumeId: aws.String(awsVolumeID)}
_, err := client.DeleteVolume(request)
if err != nil {
if awsError, ok := err.(awserr.Error); ok && awsError.Code() == "InvalidVolume.NotFound" {
framework.Logf("Volume deletion implicitly succeeded because volume %q does not exist.", pdName)
} else {
return fmt.Errorf("error deleting EBS volumes: %v", err)
}
}
return nil
} else {
return fmt.Errorf("Provider does not support volume deletion")
}
}
func detachPD(nodeName types.NodeName, pdName string) error {
if framework.TestContext.Provider == "gce" || framework.TestContext.Provider == "gke" {
gceCloud, err := framework.GetGCECloud()
@ -806,7 +698,7 @@ func detachAndDeletePDs(diskName string, hosts []types.NodeName) {
waitForPDDetach(diskName, host)
}
By(fmt.Sprintf("Deleting PD %q", diskName))
deletePDWithRetry(diskName)
framework.DeletePDWithRetry(diskName)
}
func waitForPDInVolumesInUse(

2
test/e2e/persistent_volumes-disruptive.go
View File

@ -189,7 +189,7 @@ func testVolumeUnmountsFromDeletedPod(c clientset.Interface, f *framework.Framew
// initTestCase initializes spec resources (pv, pvc, and pod) and returns pointers to be consumed by the test
func initTestCase(f *framework.Framework, c clientset.Interface, pvConfig framework.PersistentVolumeConfig, ns, nodeName string) (*v1.Pod, *v1.PersistentVolume, *v1.PersistentVolumeClaim) {
pv, pvc := framework.CreatePVPVC(c, pvConfig, ns, false)
pod := framework.MakePod(ns, pvc.Name)
pod := framework.MakePod(ns, pvc.Name, true, "")
pod.Spec.NodeName = nodeName
framework.Logf("Creating nfs client Pod %s on node %s", pod.Name, nodeName)
pod, err := c.Core().Pods(ns).Create(pod)

6
test/e2e/persistent_volumes.go
View File

@ -280,7 +280,7 @@ var _ = framework.KubeDescribe("PersistentVolumes [Volume][Serial]", func() {
// If a file is detected in /mnt, fail the pod and do not restart it.
By("Verifying the mount has been cleaned.")
mount := pod.Spec.Containers[0].VolumeMounts[0].MountPath
pod = framework.MakePod(ns, pvc.Name, fmt.Sprintf("[ $(ls -A %s | wc -l) -eq 0 ] && exit 0 || exit 1", mount))
pod = framework.MakePod(ns, pvc.Name, true, fmt.Sprintf("[ $(ls -A %s | wc -l) -eq 0 ] && exit 0 || exit 1", mount))
pod, err = c.Core().Pods(ns).Create(pod)
Expect(err).NotTo(HaveOccurred())
@ -310,7 +310,7 @@ var _ = framework.KubeDescribe("PersistentVolumes [Volume][Serial]", func() {
framework.SkipUnlessProviderIs("gce")
By("Initializing Test Spec")
if diskName == "" {
diskName, err = createPDWithRetry()
diskName, err = framework.CreatePDWithRetry()
Expect(err).NotTo(HaveOccurred())
pvConfig = framework.PersistentVolumeConfig{
NamePrefix: "gce-",
@ -342,7 +342,7 @@ var _ = framework.KubeDescribe("PersistentVolumes [Volume][Serial]", func() {
AddCleanupAction(func() {
if len(diskName) > 0 {
deletePDWithRetry(diskName)
framework.DeletePDWithRetry(diskName)
}
})

4
test/e2e/volumes.go
View File

@ -815,11 +815,11 @@ var _ = framework.KubeDescribe("Volumes [Feature:Volumes]", func() {
}
By("creating a test gce pd volume")
volumeName, err := createPDWithRetry()
volumeName, err := framework.CreatePDWithRetry()
Expect(err).NotTo(HaveOccurred())
defer func() {
deletePDWithRetry(volumeName)
framework.DeletePDWithRetry(volumeName)
}()
defer func() {