nsMatchedLabels := make([]string, 0)
		podMatchedLabels := make([]string, 0)
		extractMatchLabels := func(selector *metav1.LabelSelector) []string {
			if selector == nil {
				return nil
			}
			labels := make([]string, 0)
			for _, me := range selector.MatchExpressions {
				if me.Operator != metav1.LabelSelectorOpIn {
					continue
				}
				for _, v := range me.Values {

	envoy.PersistentFlags().StringVarP(&labelSelector, "selector", "l", "", "Label selector")
	envoy.PersistentFlags().IntVar(&proxyAdminPort, "ui-port", util.DefaultProxyAdminPort, "The component dashboard UI port.")
	dashboardCmd.AddCommand(envoy)

	proxy := proxyDashCmd(cliContext)
	proxy.PersistentFlags().StringVarP(&labelSelector, "selector", "l", "", "Label selector")

		// Make sure default and revisions do not cross
		mustNotSelect(t, mustGetLabels(t, serviceRev, "spec.selector"), podLabels)
		mustNotSelect(t, mustGetLabels(t, service, "spec.selector"), podLabelsRev)
		mustNotSelect(t, mustGetLabels(t, pdbRev, "spec.selector.matchLabels"), podLabels)
		mustNotSelect(t, mustGetLabels(t, pdb, "spec.selector.matchLabels"), podLabelsRev)

		// Make sure the scaleTargetRef points to the correct Deployment

	if err != nil {
		return types.NamespacedName{}, err
	}
	selector := ds.Spec.Selector
	if selector == nil {
		return types.NamespacedName{}, fmt.Errorf("selector is required")
	}

	sel := selector.MatchLabels
	kv := []string{}
	for k, v := range sel {
		kv = append(kv, k+"="+v)
	}

// GetFirstPod returns a pod matching the namespace and label selector
// and the number of all pods that match the label selector.
// This is forked from  polymorphichelpers.GetFirstPod to not watch and instead return an error if no pods are found
func GetFirstPod(client v1.CoreV1Interface, namespace string, selector string) (*corev1.Pod, error) {
	options := metav1.ListOptions{LabelSelector: selector}

			if err != nil {
				return err
			}

			matchingServices := make([]corev1.Service, 0, len(svcs.Items))
			for _, svc := range svcs.Items {
				if len(svc.Spec.Selector) > 0 {
					svcSelector := klabels.SelectorFromSet(svc.Spec.Selector)
					if svcSelector.Matches(podLabels) {
						matchingServices = append(matchingServices, svc)
					}
				}
			}
			// Validate Istio's "Service association" requirement

				if err != nil {
					return fmt.Errorf("not able to locate pod with selector %s: %v", istiodLabelSelector, err)
				}

				if len(pl.Items) < 1 {
					return errors.New("no pods found")
				}

				if len(pl.Items) > 1 {
					log.Warnf("more than 1 pods fits selector: %s; will use pod: %s", istiodLabelSelector, pl.Items[0].Name)
				}

				// only use the first pod in the list

		levelToString[OffLevel])

	logCmd.PersistentFlags().BoolVarP(&reset, "reset", "r", reset, "Reset levels to default value (warning).")
	logCmd.PersistentFlags().StringVarP(&labelSelector, "selector", "l", "", "Label selector")
	logCmd.PersistentFlags().StringVar(&loggerLevelString, "level", loggerLevelString,
		fmt.Sprintf("Comma-separated minimum per-logger level of messages to output, in the form of"+

			wantException:  true, // "istioctl proxy-config listeners invalid" should fail
		},
		{ // logging empty
			args:           strings.Split("log", " "),
			expectedString: "Error: log requires pod name or --selector",
			wantException:  true, // "istioctl proxy-config logging empty" should fail
		},
		{ // logging invalid
			args:           strings.Split("log invalid", " "),

		},
		{
			k8sConfigs: []runtime.Object{
				&corev1.Service{
					ObjectMeta: metav1.ObjectMeta{
						Name:      "productpage",
						Namespace: "default",
					},
					Spec: corev1.ServiceSpec{
						Selector: map[string]string{
							"app": "productpage",
						},
						Ports: []corev1.ServicePort{
							{
								Name:       "http",
								Port:       9080,
								TargetPort: intstr.FromInt32(9080),
							},