expDate, err := time.Parse(time.RFC3339, cert.ExpirationTime)
	if err != nil {
		log.Errorf("certificate timestamp (%v) could not be parsed: %v", cert.ExpirationTime, err)
		return false
	}
	fromDate, err := time.Parse(time.RFC3339, cert.ValidFrom)
	if err != nil {
		log.Errorf("certificate timestamp (%v) could not be parsed: %v", cert.ValidFrom, err)
		return false
	}
	if today.After(fromDate) && today.Before(expDate) {

	var obj runtime.Object
	var ar *kube.AdmissionReview
	out, _, err := deserializer.Decode(body, nil, obj)
	if err != nil {
		return nil, fmt.Errorf("could not decode body: %v", err)
	}
	ar, err = kube.AdmissionReviewKubeToAdapter(out)
	if err != nil {
		return nil, fmt.Errorf("could not decode object: %v", err)
	}

	return ar.Response.Patch, nil
}

var (
	runtimeScheme = func() *runtime.Scheme {

				},
			}, nil
		}
		cpID := xds.IstioControlPlaneInstance{}
		err = json.Unmarshal([]byte(xdsResponse.ControlPlane.Identifier), &cpID)
		if err != nil {
			return nil, fmt.Errorf("could not parse CP Identifier: %w", err)
		}
		return &istioVersion.MeshInfo{
			istioVersion.ServerInfo{
				Component: cpID.Component,
				Info:      cpID.Info,
				Revision:  opts.Revision,
			},
		}, nil

			}

			vwhObject, _, err := deserializer.Decode([]byte(webhookYAML), nil, &admitv1.ValidatingWebhookConfiguration{})
			if err != nil {
				t.Fatalf("could not parse webhook from generated YAML: %s", vwhObject)
			}
			wh := vwhObject.(*admitv1.ValidatingWebhookConfiguration)

			if tc.userManaged {

			portForwarder, err := client.NewPortForwarder(podName, ns, "", 0, controlzPort)
			if err != nil {
				return fmt.Errorf("could not build port forwarder for ControlZ %s: %v", podName, err)
			}
			defer portForwarder.Close()
			err = portForwarder.Start()
			if err != nil {
				return fmt.Errorf("could not start port forwarder for ControlZ %s: %v", podName, err)
			}

			ctrlzClient := &ControlzClient{
				baseURL: &url.URL{

	renameResources, selectResources, ignoreResources string,
) (bool, error) {
	a, err := os.ReadFile(args[0])
	if err != nil {
		return false, fmt.Errorf("could not read %q: %v", args[0], err)
	}
	b, err := os.ReadFile(args[1])
	if err != nil {
		return false, fmt.Errorf("could not read %q: %v", args[1], err)
	}

	diff, err := compare.ManifestDiffWithRenameSelectIgnore(string(a), string(b), renameResources, selectResources,

//
// Instead, we traverse the procfs. Comments on this method are inline.
func getPodNetNs(pod *corev1.Pod) (string, error) {
	// First, find the network namespace id by looking the interface with the given Pod IP.
	// This could break on some platforms if they do not have an interface-per-pod.
	wantID, err := findNetworkIDByIP(pod.Status.PodIP)
	if err != nil {
		return "", fmt.Errorf("network id: %v", err)
	}
	fs, err := procfs.NewFS("/host/proc")

	_ "k8s.io/client-go/plugin/pkg/client/auth"

	"istio.io/istio/istioctl/cmd"
	"istio.io/istio/pkg/log"
)

func main() {
	if err := cmd.ConfigAndEnvProcessing(); err != nil {
		fmt.Fprintf(os.Stderr, "Could not initialize: %v\n", err)
		exitCode := cmd.GetExitCode(err)
		os.Exit(exitCode)
	}

	rootCmd := cmd.GetRootCmd(os.Args[1:])

	log.EnableKlogWithCobra()

	if err := rootCmd.Execute(); err != nil {

		log.Errorf("unable to listen on socket: %v", err)
		return
	}
	exporter, err := monitoring.RegisterPrometheusExporter(nil, nil)
	if err != nil {
		log.Errorf("could not set up prometheus exporter: %v", err)
		return
	}
	mux.Handle(path, exporter)
	monitoringServer := &http.Server{
		Handler: mux,
	}
	go func() {

func GetWebhookRevision(wh admitv1.MutatingWebhookConfiguration) (string, error) {
	if tagName, ok := wh.ObjectMeta.Labels[label.IoIstioRev.Name]; ok {
		return tagName, nil
	}
	return "", fmt.Errorf("could not extract tag revision from webhook")
}

// DeleteTagWebhooks deletes the given webhooks.
func DeleteTagWebhooks(ctx context.Context, client kubernetes.Interface, tag string) error {