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PVC Protection E2E Tests for Failed Scheduling

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The PR [2] introduced a change into a scheduler that causes that scheduling of pods that use PVC that is being deleted fail.

That's why E2E test for the PR [2] is added. This E2E test also addresses the review comment [1].

[1] https://github.com/kubernetes/kubernetes/pull/56931#pullrequestreview-82564849
[2] https://github.com/kubernetes/kubernetes/pull/55957
This commit is contained in:
pospispa
2018-01-23 13:02:13 +01:00
parent d2be1ebb5f
commit 52a43b19d8
3 changed files with 83 additions and 4 deletions
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20
test/e2e/framework/pv_util.go
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@@ -926,6 +926,26 @@ func CreateClientPod(c clientset.Interface, ns string, pvc *v1.PersistentVolumeC
return CreatePod(c, ns, nil, []*v1.PersistentVolumeClaim{pvc}, true, "")
}
// CreateUnschedulablePod with given claims based on node selector
func CreateUnschedulablePod(client clientset.Interface, namespace string, nodeSelector map[string]string, pvclaims []*v1.PersistentVolumeClaim, isPrivileged bool, command string) (*v1.Pod, error) {
pod := MakePod(namespace, nodeSelector, pvclaims, isPrivileged, command)
pod, err := client.CoreV1().Pods(namespace).Create(pod)
if err != nil {
return nil, fmt.Errorf("pod Create API error: %v", err)
}
// Waiting for pod to become Unschedulable
err = WaitForPodNameUnschedulableInNamespace(client, pod.Name, namespace)
if err != nil {
return pod, fmt.Errorf("pod %q is not Unschedulable: %v", pod.Name, err)
}
// get fresh pod info
pod, err = client.CoreV1().Pods(namespace).Get(pod.Name, metav1.GetOptions{})
if err != nil {
return pod, fmt.Errorf("pod Get API error: %v", err)
}
return pod, nil
}
// wait until all pvcs phase set to bound
func WaitForPVClaimBoundPhase(client clientset.Interface, pvclaims []*v1.PersistentVolumeClaim, timeout time.Duration) ([]*v1.PersistentVolume, error) {
persistentvolumes := make([]*v1.PersistentVolume, len(pvclaims))