n := NewPodNetnsProcFinder(fakeFs())
	pod := &corev1.Pod{ObjectMeta: metav1.ObjectMeta{
		Name:      "foo",
		Namespace: "bar",
		UID:       types.UID("863b91d4-4b68-4efa-917f-4b560e3e86aa"),
	}}
	podUIDNetns, err := n.FindNetnsForPods(map[types.UID]*corev1.Pod{
		pod.UID: pod,
	})
	if err != nil {
		panic(err)
	}
	defer podUIDNetns.Close()

	if len(podUIDNetns) == 0 {
		t.Fatal("expected to find pod netns")

func (s *NetServer) buildZtunnelSnapshot(ambientPodUIDs map[types.UID]*corev1.Pod) error {
	// first add all the pods as empty:
	for uid := range ambientPodUIDs {
		s.currentPodSnapshot.Ensure(string(uid))
	}

	// populate full pod snapshot from cgroups
	return s.scanProcForPodsAndCache(ambientPodUIDs)
}

func (s *NetServer) scanProcForPodsAndCache(pods map[types.UID]*corev1.Pod) error {

    private final ConcurrentMap<Object, Integer> uids =
        Platform.tryWeakKeys(new MapMaker()).makeMap();

    private Integer getUid(Object obj) {
      Integer uid = uids.get(obj);
      if (uid == null) {
        // One or more integer values could be skipped in the event of a race
        // to generate a UID for the same object from multiple threads, but
        // that shouldn't be a problem.

    private final ConcurrentMap<Object, Integer> uids =
        Platform.tryWeakKeys(new MapMaker()).makeMap();

    private Integer getUid(Object obj) {
      Integer uid = uids.get(obj);
      if (uid == null) {
        // One or more integer values could be skipped in the event of a race
        // to generate a UID for the same object from multiple threads, but
        // that shouldn't be a problem.

	"istio.io/istio/pkg/test"
	"istio.io/istio/pkg/test/env"
	"istio.io/istio/pkg/test/util/assert"
)

var (
	kubeSystemNamespaceUID = types.UID("54643f96-eca0-11e9-bb97-42010a80000a")
	kubeSystemNamespace    = &v1.Namespace{
		ObjectMeta: metav1.ObjectMeta{
			Name: "kube-system",
			UID:  kubeSystemNamespaceUID,
		},
	}
)

const (
	testNamespace          = "istio-system-test"

	}
}

func (i *instance) getImpersonateConfig() rest.ImpersonationConfig {
	impersonateConfig := rest.ImpersonationConfig{}
	if len(*i.impersonate) > 0 {
		impersonateConfig.UserName = *i.impersonate
		impersonateConfig.UID = *i.impersonateUID
		impersonateConfig.Groups = *i.impersonateGroup
	}
	return impersonateConfig
}

func (i *instance) CLIClientWithRevision(rev string) (kube.CLIClient, error) {
	if i.clients == nil {

- Kube-apiserver: a new `--requestheader-uid-headers` flag allows configuring request header authentication to obtain the authenticating user's UID from the specified headers. The suggested value for the new option is `X-Remote-Uid`. When specified, the `kube-system/extension-apiserver-authentication` configmap will include the value in its `.data[requestheader-uid-headers]` field. ([#115834](https://github.com/kubernetes/kubernetes/pull/115834), [@s...

			if container.SecurityContext != nil && container.SecurityContext.RunAsUser != nil {
				if *container.SecurityContext.RunAsUser == UserID {
					fmt.Fprintf(writer, "WARNING: User ID (UID) 1337 is reserved for the sidecar proxy.\n")
				}
			}
		}
	}

	fmt.Fprintf(writer, "Pod: %s\n", kname(pod.ObjectMeta))
	fmt.Fprintf(writer, "   Pod Revision: %s\n", revision)
	if len(ports) > 0 {

  - `alpha` support (guarded by the `ServiceAccountTokenPodNodeInfo` feature gate) for including the node name (and uid, if the node exists) as additional claims in service account tokens it issues which are bound to pods, and `authentication.kubernetes.io/node-name` and `authentication.kubernetes.io/node-uid` extra user info when the token is used to authenticate.

i?e:l?t.call(e):u?t(e[0],n):o},R=/^-ms-/,I=/-([a-z])/g;function W(e,t){return t.toUpperCase()}function F(e){return e.replace(R,"ms-").replace(I,W)}var $=function(e){return 1===e.nodeType||9===e.nodeType||!+e.nodeType};function B(){this.expando=ce.expando+B.uid++}B.uid=1,B.prototype={cache:function(e){var t=e[this.expando];return t||(t={},$(e)&&(e.nodeType?e[this.expando]=t:Object.defineProperty(e,this.expando,{value:t,configurable:!0}))),t},set:function(e,t,n){var r,i=this.cache(e);if("string"==typeof t)i[F(t)]=n;else...