2f6c4f5eab
All code must use the context from Ginkgo when doing API calls or polling for a change, otherwise the code would not return immediately when the test gets aborted.
238 lines
7.6 KiB
Go
238 lines
7.6 KiB
Go
/*
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Copyright 2020 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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// This suite tests volumes under stress conditions
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package testsuites
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import (
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"context"
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"sync"
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"github.com/onsi/ginkgo/v2"
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v1 "k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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errors "k8s.io/apimachinery/pkg/util/errors"
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clientset "k8s.io/client-go/kubernetes"
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"k8s.io/kubernetes/test/e2e/framework"
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e2epod "k8s.io/kubernetes/test/e2e/framework/pod"
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e2epv "k8s.io/kubernetes/test/e2e/framework/pv"
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e2eskipper "k8s.io/kubernetes/test/e2e/framework/skipper"
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storageframework "k8s.io/kubernetes/test/e2e/storage/framework"
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admissionapi "k8s.io/pod-security-admission/api"
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)
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type volumeStressTestSuite struct {
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tsInfo storageframework.TestSuiteInfo
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}
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type volumeStressTest struct {
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config *storageframework.PerTestConfig
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migrationCheck *migrationOpCheck
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volumes []*storageframework.VolumeResource
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pods []*v1.Pod
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// stop and wait for any async routines
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wg sync.WaitGroup
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testOptions storageframework.StressTestOptions
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}
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var _ storageframework.TestSuite = &volumeStressTestSuite{}
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// InitCustomVolumeStressTestSuite returns volumeStressTestSuite that implements TestSuite interface
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// using custom test patterns
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func InitCustomVolumeStressTestSuite(patterns []storageframework.TestPattern) storageframework.TestSuite {
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return &volumeStressTestSuite{
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tsInfo: storageframework.TestSuiteInfo{
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Name: "volume-stress",
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TestPatterns: patterns,
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},
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}
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}
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// InitVolumeStressTestSuite returns volumeStressTestSuite that implements TestSuite interface
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// using testsuite default patterns
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func InitVolumeStressTestSuite() storageframework.TestSuite {
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patterns := []storageframework.TestPattern{
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storageframework.DefaultFsDynamicPV,
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storageframework.BlockVolModeDynamicPV,
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}
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return InitCustomVolumeStressTestSuite(patterns)
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}
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func (t *volumeStressTestSuite) GetTestSuiteInfo() storageframework.TestSuiteInfo {
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return t.tsInfo
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}
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func (t *volumeStressTestSuite) SkipUnsupportedTests(driver storageframework.TestDriver, pattern storageframework.TestPattern) {
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dInfo := driver.GetDriverInfo()
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if dInfo.StressTestOptions == nil {
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e2eskipper.Skipf("Driver %s doesn't specify stress test options -- skipping", dInfo.Name)
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}
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if dInfo.StressTestOptions.NumPods <= 0 {
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framework.Failf("NumPods in stress test options must be a positive integer, received: %d", dInfo.StressTestOptions.NumPods)
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}
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if dInfo.StressTestOptions.NumRestarts <= 0 {
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framework.Failf("NumRestarts in stress test options must be a positive integer, received: %d", dInfo.StressTestOptions.NumRestarts)
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}
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if _, ok := driver.(storageframework.DynamicPVTestDriver); !ok {
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e2eskipper.Skipf("Driver %s doesn't implement DynamicPVTestDriver -- skipping", dInfo.Name)
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}
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if !driver.GetDriverInfo().Capabilities[storageframework.CapBlock] && pattern.VolMode == v1.PersistentVolumeBlock {
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e2eskipper.Skipf("Driver %q does not support block volume mode - skipping", dInfo.Name)
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}
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}
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func (t *volumeStressTestSuite) DefineTests(driver storageframework.TestDriver, pattern storageframework.TestPattern) {
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var (
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dInfo = driver.GetDriverInfo()
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cs clientset.Interface
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l *volumeStressTest
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)
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// Beware that it also registers an AfterEach which renders f unusable. Any code using
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// f must run inside an It or Context callback.
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f := framework.NewFrameworkWithCustomTimeouts("stress", storageframework.GetDriverTimeouts(driver))
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f.NamespacePodSecurityEnforceLevel = admissionapi.LevelPrivileged
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init := func(ctx context.Context) {
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cs = f.ClientSet
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l = &volumeStressTest{}
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// Now do the more expensive test initialization.
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l.config = driver.PrepareTest(ctx, f)
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l.migrationCheck = newMigrationOpCheck(ctx, f.ClientSet, f.ClientConfig(), dInfo.InTreePluginName)
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l.volumes = []*storageframework.VolumeResource{}
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l.pods = []*v1.Pod{}
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l.testOptions = *dInfo.StressTestOptions
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}
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createPodsAndVolumes := func(ctx context.Context) {
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for i := 0; i < l.testOptions.NumPods; i++ {
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framework.Logf("Creating resources for pod %v/%v", i, l.testOptions.NumPods-1)
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r := storageframework.CreateVolumeResource(ctx, driver, l.config, pattern, t.GetTestSuiteInfo().SupportedSizeRange)
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l.volumes = append(l.volumes, r)
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podConfig := e2epod.Config{
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NS: f.Namespace.Name,
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PVCs: []*v1.PersistentVolumeClaim{r.Pvc},
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SeLinuxLabel: e2epv.SELinuxLabel,
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}
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pod, err := e2epod.MakeSecPod(&podConfig)
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framework.ExpectNoError(err)
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l.pods = append(l.pods, pod)
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}
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}
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cleanup := func(ctx context.Context) {
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framework.Logf("Stopping and waiting for all test routines to finish")
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l.wg.Wait()
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var (
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errs []error
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mu sync.Mutex
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wg sync.WaitGroup
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)
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wg.Add(len(l.pods))
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for _, pod := range l.pods {
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go func(pod *v1.Pod) {
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defer ginkgo.GinkgoRecover()
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defer wg.Done()
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framework.Logf("Deleting pod %v", pod.Name)
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err := e2epod.DeletePodWithWait(ctx, cs, pod)
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mu.Lock()
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defer mu.Unlock()
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errs = append(errs, err)
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}(pod)
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}
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wg.Wait()
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wg.Add(len(l.volumes))
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for _, volume := range l.volumes {
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go func(volume *storageframework.VolumeResource) {
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defer ginkgo.GinkgoRecover()
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defer wg.Done()
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framework.Logf("Deleting volume %s", volume.Pvc.GetName())
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err := volume.CleanupResource(ctx)
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mu.Lock()
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defer mu.Unlock()
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errs = append(errs, err)
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}(volume)
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}
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wg.Wait()
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framework.ExpectNoError(errors.NewAggregate(errs), "while cleaning up resource")
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l.migrationCheck.validateMigrationVolumeOpCounts(ctx)
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}
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ginkgo.It("multiple pods should access different volumes repeatedly [Slow] [Serial]", func(ctx context.Context) {
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init(ctx)
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ginkgo.DeferCleanup(cleanup)
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createPodsAndVolumes(ctx)
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// Restart pod repeatedly
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for i := 0; i < l.testOptions.NumPods; i++ {
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podIndex := i
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l.wg.Add(1)
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go func() {
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defer ginkgo.GinkgoRecover()
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defer l.wg.Done()
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for j := 0; j < l.testOptions.NumRestarts; j++ {
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select {
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case <-ctx.Done():
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// This looks like a in the
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// original test
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// (https://github.com/kubernetes/kubernetes/blob/21049c2a1234ae3eea57357ed4329ed567a2dab3/test/e2e/storage/testsuites/volume_stress.go#L212):
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// This early return will never
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// get reached even if some
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// other goroutine fails
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// because the context doesn't
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// get cancelled.
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return
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default:
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pod := l.pods[podIndex]
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framework.Logf("Pod-%v [%v], Iteration %v/%v", podIndex, pod.Name, j, l.testOptions.NumRestarts-1)
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_, err := cs.CoreV1().Pods(pod.Namespace).Create(ctx, pod, metav1.CreateOptions{})
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if err != nil {
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framework.Failf("Failed to create pod-%v [%+v]. Error: %v", podIndex, pod, err)
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}
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err = e2epod.WaitTimeoutForPodRunningInNamespace(ctx, cs, pod.Name, pod.Namespace, f.Timeouts.PodStart)
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if err != nil {
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framework.Failf("Failed to wait for pod-%v [%+v] turn into running status. Error: %v", podIndex, pod, err)
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}
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// TODO: write data per pod and validate it every time
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err = e2epod.DeletePodWithWait(ctx, f.ClientSet, pod)
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if err != nil {
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framework.Failf("Failed to delete pod-%v [%+v]. Error: %v", podIndex, pod, err)
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}
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}
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}
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}()
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}
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l.wg.Wait()
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})
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}
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