// A null selector selects no pods.
  // An empty selector ({}) also selects no pods, which differs from standard behavior of selecting all pods.
  // In policy/v1, an empty selector will select all pods in the namespace.
  // +optional
  optional k8s.io.apimachinery.pkg.apis.meta.v1.LabelSelector selector = 2;

  // An eviction is allowed if at most "maxUnavailable" pods selected by

	patchBytes := fmt.Sprintf(`{"metadata":{"labels":{%q:%q}}}`, c.cfg.LabelKey, c.cfg.LabelValue)
	// Both "pods" and "pods/status" can mutate the metadata. However, pods/status is lower privilege, so we use that instead.
	_, err := c.client.Kube().CoreV1().Pods(pod.Namespace).Patch(context.Background(), pod.Name, types.MergePatchType,
		[]byte(patchBytes), metav1.PatchOptions{}, "status")
	if err != nil {

	}

	options := metav1.ListOptions{LabelSelector: selector}
	podList, err := client.Pods(namespace).List(context.TODO(), options)
	if err != nil {
		return []string{}, "", err
	}
	pods := []string{}
	for i := range podList.Items {
		pods = append(pods, podList.Items[i].Name)
	}

	return pods, namespace, nil
}

1. By running as a node-level daemonset that:

- listens for these UDS events from the CNI plugin (which fire when new pods are spawned in an ambient-enabled namespace), and adds those pods to the ambient mesh.
- watches k8s resource for existing pods, so that pods that have already been started can be moved in or out of the ambient mesh.

message NetworkPolicyPeer {
  // podSelector is a label selector which selects pods. This field follows standard label
  // selector semantics; if present but empty, it selects all pods.
  //
  // If namespaceSelector is also set, then the NetworkPolicyPeer as a whole selects
  // the pods matching podSelector in the Namespaces selected by NamespaceSelector.
  // Otherwise it selects the pods matching podSelector in the policy's own namespace.
  // +optional

  // can have their pods stopped for an update at any given time. The update
  // starts by stopping at most 30% of those DaemonSet pods and then brings
  // up new DaemonSet pods in their place. Once the new pods are available,
  // it then proceeds onto other DaemonSet pods, thus ensuring that at least
  // 70% of original number of DaemonSet pods are available at all times during
  // the update.

			ExpectedOutput: "Error: no pods found with selector app=kiali\n",
			WantException:  true,
		},
		{ // case 9
			Args:           strings.Split("prometheus --browser=false", " "),
			ExpectedOutput: "Error: no pods found with selector app.kubernetes.io/name=prometheus\n",
			WantException:  true,
		},
		{ // case 10
			Args:           strings.Split("zipkin --browser=false", " "),
			ExpectedOutput: "Error: no pods found with selector app=zipkin\n",

    reinvocationPolicy: Never
    rules:
      - apiGroups:
          - ""
        apiVersions:
          - v1
        operations:
          - CREATE
        resources:
          - pods
        scope: '*'
    sideEffects: None
    timeoutSeconds: 10
  - admissionReviewVersions:
      - v1beta1
      - v1
    clientConfig:
      service:
        name: istiod
        namespace: istio-system

		})
	}
}

func fakeClient(pods ...*corev1.Pod) kube.Client {
	var csPods []runtime.Object

	for _, pod := range pods {
		csPods = append(csPods, pod.DeepCopy())
	}
	return kube.NewFakeClient(csPods...)
}

func makePodLabelMap(pods []*corev1.Pod) (podmap map[string]string) {
	podmap = map[string]string{}
	for _, pod := range pods {
		podmap[pod.Name] = ""

	podList, err := client.Pods(namespace).List(context.TODO(), options)
	if err != nil {
		return nil, err
	}
	pods := make([]*corev1.Pod, 0, len(podList.Items))
	for i := range podList.Items {
		pod := podList.Items[i]
		pods = append(pods, &pod)
	}
	if len(pods) > 0 {
		sort.Sort(sortBy(pods))
		return pods[0], nil
	}
	return nil, fmt.Errorf("no pods matching selector %q found in namespace %q", selector, namespace)