Fix should be able to create and delete a critical pod test

The namespace the crictical pod was referring to was wrong, because it
was using the generated one instead of `kube-system`. This and the
resulting test condition is now fixed.

The test seems to run only in `ci-crio-cgroupv1-node-e2e-flaky` for now.

Closes https://github.com/kubernetes/kubernetes/issues/109296

Signed-off-by: Sascha Grunert <sgrunert@redhat.com>

test/e2e/framework/pod/pod_client.go

@@ -70,6 +70,7 @@ func NewPodClient(f *framework.Framework) *PodClient {
 	return &PodClient{
 		f:            f,
 		PodInterface: f.ClientSet.CoreV1().Pods(f.Namespace.Name),
+		namespace:    f.Namespace.Name,
 	}
 }
 
@@ -80,6 +81,7 @@ func PodClientNS(f *framework.Framework, namespace string) *PodClient {
 	return &PodClient{
 		f:            f,
 		PodInterface: f.ClientSet.CoreV1().Pods(namespace),
+		namespace:    namespace,
 	}
 }
 
@@ -87,6 +89,7 @@ func PodClientNS(f *framework.Framework, namespace string) *PodClient {
 type PodClient struct {
 	f *framework.Framework
 	v1core.PodInterface
+	namespace string
 }
 
 // Create creates a new pod according to the framework specifications (don't wait for it to start).
@@ -99,9 +102,8 @@ func (c *PodClient) Create(ctx context.Context, pod *v1.Pod) *v1.Pod {
 
 // CreateSync creates a new pod according to the framework specifications, and wait for it to start and be running and ready.
 func (c *PodClient) CreateSync(ctx context.Context, pod *v1.Pod) *v1.Pod {
-	namespace := c.f.Namespace.Name
 	p := c.Create(ctx, pod)
-	framework.ExpectNoError(WaitTimeoutForPodReadyInNamespace(ctx, c.f.ClientSet, p.Name, namespace, framework.PodStartTimeout))
+	framework.ExpectNoError(WaitTimeoutForPodReadyInNamespace(ctx, c.f.ClientSet, p.Name, c.namespace, framework.PodStartTimeout))
 	// Get the newest pod after it becomes running and ready, some status may change after pod created, such as pod ip.
 	p, err := c.Get(ctx, p.Name, metav1.GetOptions{})
 	framework.ExpectNoError(err)
@@ -149,8 +151,6 @@ func (c *PodClient) Update(ctx context.Context, name string, updateFn func(pod *
 
 // AddEphemeralContainerSync adds an EphemeralContainer to a pod and waits for it to be running.
 func (c *PodClient) AddEphemeralContainerSync(ctx context.Context, pod *v1.Pod, ec *v1.EphemeralContainer, timeout time.Duration) error {
-	namespace := c.f.Namespace.Name
-
 	podJS, err := json.Marshal(pod)
 	framework.ExpectNoError(err, "error creating JSON for pod %q", FormatPod(pod))
 
@@ -167,7 +167,7 @@ func (c *PodClient) AddEphemeralContainerSync(ctx context.Context, pod *v1.Pod,
 		return err
 	}
 
-	framework.ExpectNoError(WaitForContainerRunning(ctx, c.f.ClientSet, namespace, pod.Name, ec.Name, timeout))
+	framework.ExpectNoError(WaitForContainerRunning(ctx, c.f.ClientSet, c.namespace, pod.Name, ec.Name, timeout))
 	return nil
 }
 
@@ -185,12 +185,11 @@ func FormatPod(pod *v1.Pod) string {
 // DeleteSync deletes the pod and wait for the pod to disappear for `timeout`. If the pod doesn't
 // disappear before the timeout, it will fail the test.
 func (c *PodClient) DeleteSync(ctx context.Context, name string, options metav1.DeleteOptions, timeout time.Duration) {
-	namespace := c.f.Namespace.Name
 	err := c.Delete(ctx, name, options)
 	if err != nil && !apierrors.IsNotFound(err) {
 		framework.Failf("Failed to delete pod %q: %v", name, err)
 	}
-	framework.ExpectNoError(WaitForPodNotFoundInNamespace(ctx, c.f.ClientSet, name, namespace, timeout), "wait for pod %q to disappear", name)
+	framework.ExpectNoError(WaitForPodNotFoundInNamespace(ctx, c.f.ClientSet, name, c.namespace, timeout), "wait for pod %q to disappear", name)
 }
 
 // mungeSpec apply test-suite specific transformations to the pod spec.
@@ -232,8 +231,7 @@ func (c *PodClient) mungeSpec(pod *v1.Pod) {
 // WaitForSuccess waits for pod to succeed.
 // TODO(random-liu): Move pod wait function into this file
 func (c *PodClient) WaitForSuccess(ctx context.Context, name string, timeout time.Duration) {
-	f := c.f
+	gomega.Expect(WaitForPodCondition(ctx, c.f.ClientSet, c.namespace, name, fmt.Sprintf("%s or %s", v1.PodSucceeded, v1.PodFailed), timeout,
-	gomega.Expect(WaitForPodCondition(ctx, f.ClientSet, f.Namespace.Name, name, fmt.Sprintf("%s or %s", v1.PodSucceeded, v1.PodFailed), timeout,
 		func(pod *v1.Pod) (bool, error) {
 			switch pod.Status.Phase {
 			case v1.PodFailed:
@@ -249,8 +247,7 @@ func (c *PodClient) WaitForSuccess(ctx context.Context, name string, timeout tim
 
 // WaitForFinish waits for pod to finish running, regardless of success or failure.
 func (c *PodClient) WaitForFinish(ctx context.Context, name string, timeout time.Duration) {
-	f := c.f
+	gomega.Expect(WaitForPodCondition(ctx, c.f.ClientSet, c.namespace, name, fmt.Sprintf("%s or %s", v1.PodSucceeded, v1.PodFailed), timeout,
-	gomega.Expect(WaitForPodCondition(ctx, f.ClientSet, f.Namespace.Name, name, fmt.Sprintf("%s or %s", v1.PodSucceeded, v1.PodFailed), timeout,
 		func(pod *v1.Pod) (bool, error) {
 			switch pod.Status.Phase {
 			case v1.PodFailed:

test/e2e_node/critical_pod_test.go

@@ -46,7 +46,7 @@ var _ = SIGDescribe("CriticalPod [Serial] [Disruptive] [NodeFeature:CriticalPod]
 	f := framework.NewDefaultFramework("critical-pod-test")
 	f.NamespacePodSecurityLevel = admissionapi.LevelPrivileged
 	ginkgo.Context("when we need to admit a critical pod", func() {
-		ginkgo.It("[Flaky] should be able to create and delete a critical pod", func(ctx context.Context) {
+		ginkgo.It("should be able to create and delete a critical pod", func(ctx context.Context) {
 			// because adminssion Priority enable, If the priority class is not found, the Pod is rejected.
 			node := getNodeName(ctx, f)
 			// Define test pods
@@ -84,7 +84,7 @@ var _ = SIGDescribe("CriticalPod [Serial] [Disruptive] [NodeFeature:CriticalPod]
 				if p.Name == nonCriticalBestEffort.Name {
 					framework.ExpectEqual(p.Status.Phase, v1.PodRunning, fmt.Sprintf("pod: %v should not be preempted with status: %#v", p.Name, p.Status))
 				} else {
-					framework.ExpectEqual(p.Status.Phase, v1.PodFailed, fmt.Sprintf("pod: %v should be preempted with status: %#v", p.Name, p.Status))
+					framework.ExpectEqual(p.Status.Phase, v1.PodSucceeded, fmt.Sprintf("pod: %v should be preempted with status: %#v", p.Name, p.Status))
 				}
 			}
 		})