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e2e: Test IO after nodeplugin reboot

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This is a negative testcase to showcase as per current design
the IO will fail because of the missing mappings

Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
This commit is contained in:
Prasanna Kumar Kalever 2021-02-09 18:47:09 +05:30 committed by mergify[bot]
parent 8bae8f8458
commit 695ec6dffe
1 changed files with 86 additions and 0 deletions
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86
e2e/rbd.go
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@ -374,6 +374,92 @@ var _ = Describe("RBD", func() {
}
})
By("perform IO on rbd-nbd volume after nodeplugin restart and expect a failure", func() {
err := deleteResource(rbdExamplePath + "storageclass.yaml")
if err != nil {
e2elog.Failf("failed to delete storageclass with error %v", err)
}
// Storage class with rbd-nbd mounter
err = createRBDStorageClass(f.ClientSet, f, nil, map[string]string{"mounter": "rbd-nbd"}, deletePolicy)
if err != nil {
e2elog.Failf("failed to create storageclass with error %v", err)
}
pvc, err := loadPVC(pvcPath)
if err != nil {
e2elog.Failf("failed to load PVC with error %v", err)
}
pvc.Namespace = f.UniqueName
app, err := loadApp(appPath)
if err != nil {
e2elog.Failf("failed to load application with error %v", err)
}
app.Namespace = f.UniqueName
label := map[string]string{
"app": app.Name,
}
app.Labels = label
app.Spec.Volumes[0].PersistentVolumeClaim.ClaimName = pvc.Name
err = createPVCAndApp("", f, pvc, app, deployTimeout)
if err != nil {
e2elog.Failf("failed to create PVC and application with error %v", err)
}
// validate created backend rbd images
validateRBDImageCount(f, 1)
selector, err := getDaemonSetLabelSelector(f, cephCSINamespace, rbdDaemonsetName)
if err != nil {
e2elog.Failf("failed to get the labels with error %v", err)
}
// delete rbd nodeplugin pods
err = deletePodWithLabel(selector, cephCSINamespace, false)
if err != nil {
e2elog.Failf("fail to delete pod with error %v", err)
}
// wait for nodeplugin pods to come up
err = waitForDaemonSets(rbdDaemonsetName, cephCSINamespace, f.ClientSet, deployTimeout)
if err != nil {
e2elog.Failf("timeout waiting for daemonset pods with error %v", err)
}
opt := metav1.ListOptions{
LabelSelector: fmt.Sprintf("app=%s", app.Name),
}
// FIXME: Fix this behavior, i.e. when the nodeplugin is
// restarted, the rbd-nbd processes should be back to life
// as rbd-nbd processes are responsible for IO
// For now to prove this isn't working, write something to
// mountpoint and expect a failure as the processes are terminated.
filePath := app.Spec.Containers[0].VolumeMounts[0].MountPath + "/test"
_, stdErr := execCommandInPodAndAllowFail(f, fmt.Sprintf("echo 'Hello World' > %s", filePath), app.Namespace, &opt)
IOErr := fmt.Sprintf("cannot create %s: Input/output error", filePath)
if !strings.Contains(stdErr, IOErr) {
e2elog.Failf(stdErr)
} else {
e2elog.Logf("failed IO as expected: %v", stdErr)
}
err = deletePVCAndApp("", f, pvc, app)
if err != nil {
e2elog.Failf("failed to delete PVC and application with error %v", err)
}
// validate created backend rbd images
validateRBDImageCount(f, 0)
err = deleteResource(rbdExamplePath + "storageclass.yaml")
if err != nil {
e2elog.Failf("failed to delete storageclass with error %v", err)
}
err = createRBDStorageClass(f.ClientSet, f, nil, nil, deletePolicy)
if err != nil {
e2elog.Failf("failed to create storageclass with error %v", err)
}
})
By("create a PVC and bind it to an app with encrypted RBD volume", func() {
err := deleteResource(rbdExamplePath + "storageclass.yaml")
if err != nil {