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Merge pull request #79796 from jsafrane/block-test-mismatch
Add test for mismatched usage of filesystem/block volumes
This commit is contained in:
Kubernetes Prow Robot
GitHub
commit
0d579bfecf
@ -20,12 +20,14 @@ go_library(
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importpath = "k8s.io/kubernetes/test/e2e/storage/testsuites",
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visibility = ["//visibility:public"],
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deps = [
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"//pkg/kubelet/events:go_default_library",
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"//staging/src/k8s.io/api/core/v1:go_default_library",
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"//staging/src/k8s.io/api/storage/v1:go_default_library",
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"//staging/src/k8s.io/apimachinery/pkg/api/errors:go_default_library",
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"//staging/src/k8s.io/apimachinery/pkg/api/resource:go_default_library",
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"//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
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"//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1/unstructured:go_default_library",
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"//staging/src/k8s.io/apimachinery/pkg/fields:go_default_library",
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"//staging/src/k8s.io/apimachinery/pkg/labels:go_default_library",
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"//staging/src/k8s.io/apimachinery/pkg/runtime/schema:go_default_library",
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"//staging/src/k8s.io/apimachinery/pkg/util/errors:go_default_library",
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@ -24,9 +24,12 @@ import (
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v1 "k8s.io/api/core/v1"
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storagev1 "k8s.io/api/storage/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/fields"
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clientset "k8s.io/client-go/kubernetes"
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"k8s.io/kubernetes/pkg/kubelet/events"
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"k8s.io/kubernetes/test/e2e/framework"
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e2elog "k8s.io/kubernetes/test/e2e/framework/log"
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e2epod "k8s.io/kubernetes/test/e2e/framework/pod"
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"k8s.io/kubernetes/test/e2e/storage/testpatterns"
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)
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@ -94,6 +97,11 @@ func (t *volumeModeTestSuite) defineTests(driver TestDriver, pattern testpattern
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// Now do the more expensive test initialization.
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l.config, l.testCleanup = driver.PrepareTest(f)
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l.intreeOps, l.migratedOps = getMigrationVolumeOpCounts(f.ClientSet, dInfo.InTreePluginName)
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}
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// manualInit initializes l.genericVolumeTestResource without creating the PV & PVC objects.
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manualInit := func() {
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init()
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fsType := pattern.FsType
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volBindMode := storagev1.VolumeBindingImmediate
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@ -167,7 +175,7 @@ func (t *volumeModeTestSuite) defineTests(driver TestDriver, pattern testpattern
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case testpatterns.PreprovisionedPV:
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if pattern.VolMode == v1.PersistentVolumeBlock && !isBlockSupported {
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ginkgo.It("should fail to create pod by failing to mount volume [Slow]", func() {
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init()
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manualInit()
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defer cleanup()
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var err error
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@ -196,13 +204,12 @@ func (t *volumeModeTestSuite) defineTests(driver TestDriver, pattern testpattern
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}()
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framework.ExpectError(err)
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})
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// TODO(mkimuram): Add more tests
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}
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case testpatterns.DynamicPV:
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if pattern.VolMode == v1.PersistentVolumeBlock && !isBlockSupported {
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ginkgo.It("should fail in binding dynamic provisioned PV to PVC [Slow]", func() {
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init()
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manualInit()
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defer cleanup()
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var err error
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@ -218,12 +225,57 @@ func (t *volumeModeTestSuite) defineTests(driver TestDriver, pattern testpattern
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err = framework.WaitForPersistentVolumeClaimPhase(v1.ClaimBound, l.cs, l.pvc.Namespace, l.pvc.Name, framework.Poll, framework.ClaimProvisionTimeout)
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framework.ExpectError(err)
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})
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// TODO(mkimuram): Add more tests
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}
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default:
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e2elog.Failf("Volume mode test doesn't support volType: %v", pattern.VolType)
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}
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ginkgo.It("should fail to use a volume in a pod with mismatched mode [Slow]", func() {
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skipBlockTest(driver)
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init()
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l.genericVolumeTestResource = *createGenericVolumeTestResource(driver, l.config, pattern)
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defer cleanup()
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ginkgo.By("Creating pod")
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var err error
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pod := framework.MakeSecPod(l.ns.Name, []*v1.PersistentVolumeClaim{l.pvc}, nil, false, "", false, false, framework.SELinuxLabel, nil)
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// Change volumeMounts to volumeDevices and the other way around
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pod = swapVolumeMode(pod)
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// Run the pod
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pod, err = l.cs.CoreV1().Pods(l.ns.Name).Create(pod)
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framework.ExpectNoError(err)
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defer func() {
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framework.ExpectNoError(framework.DeletePodWithWait(f, l.cs, pod))
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}()
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ginkgo.By("Waiting for pod to fail")
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// Wait for an event that the pod is invalid.
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eventSelector := fields.Set{
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"involvedObject.kind": "Pod",
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"involvedObject.name": pod.Name,
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"involvedObject.namespace": l.ns.Name,
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"reason": events.FailedMountVolume,
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}.AsSelector().String()
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var msg string
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if pattern.VolMode == v1.PersistentVolumeBlock {
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msg = "has volumeMode Block, but is specified in volumeMounts"
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} else {
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msg = "has volumeMode Filesystem, but is specified in volumeDevices"
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}
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err = e2epod.WaitTimeoutForPodEvent(l.cs, pod.Name, l.ns.Name, eventSelector, msg, framework.PodStartTimeout)
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// Events are unreliable, don't depend on them. They're used only to speed up the test.
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if err != nil {
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e2elog.Logf("Warning: did not get event about mismatched volume use")
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}
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// Check the pod is still not running
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p, err := l.cs.CoreV1().Pods(l.ns.Name).Get(pod.Name, metav1.GetOptions{})
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framework.ExpectNoError(err, "could not re-read the pod after event (or timeout)")
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framework.ExpectEqual(p.Status.Phase, v1.PodPending)
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})
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}
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func generateConfigsForPreprovisionedPVTest(scName string, volBindMode storagev1.VolumeBindingMode,
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@ -254,3 +306,29 @@ func generateConfigsForPreprovisionedPVTest(scName string, volBindMode storagev1
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return scConfig, pvConfig, pvcConfig
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}
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// swapVolumeMode changes volumeMounts to volumeDevices and the other way around
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func swapVolumeMode(podTemplate *v1.Pod) *v1.Pod {
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pod := podTemplate.DeepCopy()
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for c := range pod.Spec.Containers {
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container := &pod.Spec.Containers[c]
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container.VolumeDevices = []v1.VolumeDevice{}
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container.VolumeMounts = []v1.VolumeMount{}
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// Change VolumeMounts to VolumeDevices
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for _, volumeMount := range podTemplate.Spec.Containers[c].VolumeMounts {
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container.VolumeDevices = append(container.VolumeDevices, v1.VolumeDevice{
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Name: volumeMount.Name,
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DevicePath: volumeMount.MountPath,
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})
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}
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// Change VolumeDevices to VolumeMounts
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for _, volumeDevice := range podTemplate.Spec.Containers[c].VolumeDevices {
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container.VolumeMounts = append(container.VolumeMounts, v1.VolumeMount{
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Name: volumeDevice.Name,
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MountPath: volumeDevice.DevicePath,
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})
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}
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}
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return pod
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}
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