func getNamespaces(ctx context.Context, client kube.CLIClient, istioNamespace string) ([]corev1.Namespace, error) {
	nsList, err := client.Kube().CoreV1().Namespaces().List(ctx, metav1.ListOptions{})
	if err != nil {
		return []corev1.Namespace{}, err
	}
	filtered := filterSystemNamespaces(nsList.Items, istioNamespace)
	filtered = slices.Filter(filtered, func(namespace corev1.Namespace) bool {
		return !ambient.InAmbient(&namespace)
	})

func PodRedirectionActive(pod *corev1.Pod) bool {
	return pod.GetAnnotations()[annotation.AmbientRedirection.Name] == constants.AmbientRedirectionEnabled
}

func podHasSidecar(pod *corev1.Pod) bool {
	if _, f := pod.GetAnnotations()[annotation.SidecarStatus.Name]; f {
		return true
	}
	return false
}

func IsZtunnelPod(systemNs string, pod *corev1.Pod) bool {

func InAmbient(obj metav1.Object) bool {
	if obj == nil {
		return false
	}
	switch t := obj.(type) {
	case *corev1.Pod:
		return t.GetAnnotations()[annotation.AmbientRedirection.Name] == constants.AmbientRedirectionEnabled
	case *corev1.Namespace:
		if t.GetLabels()["istio-injection"] == "enabled" {
			return false
		}
		if v, ok := t.GetLabels()[label.IoIstioRev.Name]; ok && v != "" {
			return false
		}

func Test_extractRevisionFromPod(t *testing.T) {
	cases := []struct {
		name             string
		pod              *corev1.Pod
		expectedRevision string
	}{
		{
			name:             "no rev",
			pod:              &corev1.Pod{},
			expectedRevision: "",
		},
		{
			name: "has rev annotation",
			pod: &corev1.Pod{
				ObjectMeta: metav1.ObjectMeta{
					Annotations: map[string]string{

	ctx, cancel := context.WithCancel(context.Background())
	defer cancel()
	pod := &corev1.Pod{
		ObjectMeta: metav1.ObjectMeta{
			Name:      "pod-bingo",
			Namespace: "funkyns",
		},
		Spec: corev1.PodSpec{
			NodeName: NodeName,
		},
		Status: corev1.PodStatus{
			PodIP: fakePodIP,
		},
	}
	ns := &corev1.Namespace{ObjectMeta: metav1.ObjectMeta{Name: "funkyns"}}

	client := kube.NewFakeClient(ns, pod)

		Spec: corev1.PodSpec{
			NodeName: "derp",
		},
		Status: corev1.PodStatus{
			PodIP: "11.1.1.12",
		},
	}

	podIPs := GetPodIPsIfPresent(pod)
	assert.Equal(t, len(podIPs), 1)
}

func TestGetPodIPsIfPodIPPresent(t *testing.T) {
	pod := &corev1.Pod{
		ObjectMeta: metav1.ObjectMeta{
			Name:      "test",
			Namespace: "test",
		},
		Spec: corev1.PodSpec{
			NodeName: "derp",
		},
		Status: corev1.PodStatus{

	if err != nil {
		t.Fatalf("failed with error: %v", err)
	}
}

func buildFakeDryRunPod() *corev1.Pod {
	app := corev1.Container{Name: "test"}
	proxy := corev1.Container{Name: "istio-proxy"}
	validate := corev1.Container{Name: "istio-validate"}
	fakePod := &corev1.Pod{
		TypeMeta: metav1.TypeMeta{
			APIVersion: "core/v1",
			Kind:       "Pod",
		},
		ObjectMeta: metav1.ObjectMeta{

	defer cancel()

	pod := &corev1.Pod{
		ObjectMeta: metav1.ObjectMeta{
			Name:      "test",
			Namespace: "test",
		},
		Spec: corev1.PodSpec{
			NodeName: NodeName,
		},
		Status: corev1.PodStatus{
			PodIPs: []corev1.PodIP{
				{
					IP: "11.1.1.12",
				},
			},
		},
	}
	ns := &corev1.Namespace{ObjectMeta: metav1.ObjectMeta{Name: "test"}}

	s.ztunnelServer.Close()
}

func (s *NetServer) rescanPod(pod *corev1.Pod) error {
	// this can happen if the pod was dynamically added to the mesh after it was created.
	// in that case, try finding the netns using procfs.
	filter := map[types.UID]*corev1.Pod{
		pod.UID: pod,
	}
	return s.scanProcForPodsAndCache(filter)
}

func (s *NetServer) getOrOpenNetns(pod *corev1.Pod, netNs string) (Netns, error) {
	if netNs == "" {

							Labels: map[string]string{
								label.IoIstioRev.Name: "revision",
								label.IoIstioTag.Name: "test",
							},
						},
					},
				},
			},
			namespaces: corev1.NamespaceList{
				Items: []corev1.Namespace{
					{
						ObjectMeta: metav1.ObjectMeta{
							Name:   "dependent",
							Labels: map[string]string{label.IoIstioRev.Name: "test"},
						},
					},
				},
			},