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.
282 lines
9.4 KiB
Go
282 lines
9.4 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 volume snapshots 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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e2evolume "k8s.io/kubernetes/test/e2e/framework/volume"
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storageframework "k8s.io/kubernetes/test/e2e/storage/framework"
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storageutils "k8s.io/kubernetes/test/e2e/storage/utils"
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admissionapi "k8s.io/pod-security-admission/api"
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)
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type snapshottableStressTestSuite struct {
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tsInfo storageframework.TestSuiteInfo
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}
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type snapshottableStressTest struct {
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config *storageframework.PerTestConfig
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testOptions storageframework.VolumeSnapshotStressTestOptions
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driverCleanup func()
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pods []*v1.Pod
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volumes []*storageframework.VolumeResource
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snapshots []*storageframework.SnapshotResource
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// Because we are appending snapshot resources in parallel goroutines.
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snapshotsMutex sync.Mutex
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// Stop and wait for any async routines.
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wg sync.WaitGroup
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}
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// InitCustomSnapshottableStressTestSuite returns snapshottableStressTestSuite that implements TestSuite interface
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// using custom test patterns
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func InitCustomSnapshottableStressTestSuite(patterns []storageframework.TestPattern) storageframework.TestSuite {
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return &snapshottableStressTestSuite{
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tsInfo: storageframework.TestSuiteInfo{
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Name: "snapshottable-stress",
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TestPatterns: patterns,
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SupportedSizeRange: e2evolume.SizeRange{
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Min: "1Mi",
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},
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FeatureTag: "[Feature:VolumeSnapshotDataSource]",
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},
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}
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}
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// InitSnapshottableStressTestSuite returns snapshottableStressTestSuite that implements TestSuite interface
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// using testsuite default patterns
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func InitSnapshottableStressTestSuite() storageframework.TestSuite {
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patterns := []storageframework.TestPattern{
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storageframework.DynamicSnapshotDelete,
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storageframework.DynamicSnapshotRetain,
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}
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return InitCustomSnapshottableStressTestSuite(patterns)
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}
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func (t *snapshottableStressTestSuite) GetTestSuiteInfo() storageframework.TestSuiteInfo {
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return t.tsInfo
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}
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func (t *snapshottableStressTestSuite) SkipUnsupportedTests(driver storageframework.TestDriver, pattern storageframework.TestPattern) {
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driverInfo := driver.GetDriverInfo()
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var ok bool
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if driverInfo.VolumeSnapshotStressTestOptions == nil {
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e2eskipper.Skipf("Driver %s doesn't specify snapshot stress test options -- skipping", driverInfo.Name)
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}
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if driverInfo.VolumeSnapshotStressTestOptions.NumPods <= 0 {
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framework.Failf("NumPods in snapshot stress test options must be a positive integer, received: %d", driverInfo.VolumeSnapshotStressTestOptions.NumPods)
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}
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if driverInfo.VolumeSnapshotStressTestOptions.NumSnapshots <= 0 {
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framework.Failf("NumSnapshots in snapshot stress test options must be a positive integer, received: %d", driverInfo.VolumeSnapshotStressTestOptions.NumSnapshots)
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}
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_, ok = driver.(storageframework.SnapshottableTestDriver)
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if !driverInfo.Capabilities[storageframework.CapSnapshotDataSource] || !ok {
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e2eskipper.Skipf("Driver %q doesn't implement SnapshottableTestDriver - skipping", driverInfo.Name)
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}
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_, ok = driver.(storageframework.DynamicPVTestDriver)
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if !ok {
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e2eskipper.Skipf("Driver %s doesn't implement DynamicPVTestDriver -- skipping", driverInfo.Name)
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}
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}
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func (t *snapshottableStressTestSuite) DefineTests(driver storageframework.TestDriver, pattern storageframework.TestPattern) {
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var (
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driverInfo *storageframework.DriverInfo
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snapshottableDriver storageframework.SnapshottableTestDriver
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cs clientset.Interface
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stressTest *snapshottableStressTest
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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.NewDefaultFramework("snapshottable-stress")
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f.NamespacePodSecurityEnforceLevel = admissionapi.LevelPrivileged
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init := func(ctx context.Context) {
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driverInfo = driver.GetDriverInfo()
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snapshottableDriver, _ = driver.(storageframework.SnapshottableTestDriver)
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cs = f.ClientSet
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config := driver.PrepareTest(ctx, f)
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stressTest = &snapshottableStressTest{
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config: config,
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volumes: []*storageframework.VolumeResource{},
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snapshots: []*storageframework.SnapshotResource{},
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pods: []*v1.Pod{},
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testOptions: *driverInfo.VolumeSnapshotStressTestOptions,
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}
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}
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createPodsAndVolumes := func(ctx context.Context) {
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for i := 0; i < stressTest.testOptions.NumPods; i++ {
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framework.Logf("Creating resources for pod %d/%d", i, stressTest.testOptions.NumPods-1)
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volume := storageframework.CreateVolumeResource(ctx, driver, stressTest.config, pattern, t.GetTestSuiteInfo().SupportedSizeRange)
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stressTest.volumes = append(stressTest.volumes, volume)
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podConfig := e2epod.Config{
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NS: f.Namespace.Name,
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PVCs: []*v1.PersistentVolumeClaim{volume.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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stressTest.pods = append(stressTest.pods, pod)
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}
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var wg sync.WaitGroup
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for i, pod := range stressTest.pods {
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wg.Add(1)
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go func(i int, pod *v1.Pod) {
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defer ginkgo.GinkgoRecover()
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defer wg.Done()
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if _, err := cs.CoreV1().Pods(pod.Namespace).Create(ctx, pod, metav1.CreateOptions{}); err != nil {
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framework.Failf("Failed to create pod-%d [%+v]. Error: %v", i, pod, err)
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}
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}(i, pod)
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}
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wg.Wait()
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for i, pod := range stressTest.pods {
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if err := e2epod.WaitForPodRunningInNamespace(ctx, cs, pod); err != nil {
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framework.Failf("Failed to wait for pod-%d [%+v] turn into running status. Error: %v", i, pod, err)
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}
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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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stressTest.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(stressTest.snapshots))
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for _, snapshot := range stressTest.snapshots {
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go func(snapshot *storageframework.SnapshotResource) {
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defer ginkgo.GinkgoRecover()
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defer wg.Done()
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framework.Logf("Deleting snapshot %s/%s", snapshot.Vs.GetNamespace(), snapshot.Vs.GetName())
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err := snapshot.CleanupResource(ctx, f.Timeouts)
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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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}(snapshot)
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}
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wg.Wait()
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wg.Add(len(stressTest.pods))
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for _, pod := range stressTest.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 %s", 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(stressTest.volumes))
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for _, volume := range stressTest.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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errs = append(errs, storageutils.TryFunc(stressTest.driverCleanup))
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framework.ExpectNoError(errors.NewAggregate(errs), "while cleaning up resources")
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}
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ginkgo.It("should support snapshotting of many 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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// Repeatedly create and delete snapshots of each volume.
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for i := 0; i < stressTest.testOptions.NumPods; i++ {
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for j := 0; j < stressTest.testOptions.NumSnapshots; j++ {
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stressTest.wg.Add(1)
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go func(podIndex, snapshotIndex int) {
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defer ginkgo.GinkgoRecover()
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defer stressTest.wg.Done()
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pod := stressTest.pods[podIndex]
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volume := stressTest.volumes[podIndex]
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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/snapshottable_stress.go#L269):
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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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framework.Logf("Pod-%d [%s], Iteration %d/%d", podIndex, pod.Name, snapshotIndex, stressTest.testOptions.NumSnapshots-1)
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parameters := map[string]string{}
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snapshot := storageframework.CreateSnapshotResource(ctx, snapshottableDriver, stressTest.config, pattern, volume.Pvc.GetName(), volume.Pvc.GetNamespace(), f.Timeouts, parameters)
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stressTest.snapshotsMutex.Lock()
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defer stressTest.snapshotsMutex.Unlock()
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stressTest.snapshots = append(stressTest.snapshots, snapshot)
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}
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}(i, j)
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}
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}
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stressTest.wg.Wait()
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})
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}
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