return fmt.Sprintf("no running Istio pods in %q", c.Namespace)
}

var _ error = ControlPlaneNotFoundError{}

type Options struct {
	// MessageWriter is a writer for displaying messages to users.
	MessageWriter io.Writer

	// XdsViaAgents accesses Istiod via the tap service of each agent.
	// This is only used in `proxy-status` command.
	XdsViaAgents bool

		// only label if the user has provided their own value, otherwise we let istiod choose a default at runtime (service)
		// this will allow for gateway class to provide a default for that class rather than always forcing service or requiring users to configure correctly
		if trafficType != "" {
			if !validTrafficTypes.Contains(trafficType) {
				return nil, fmt.Errorf("invalid traffic type: %s. Valid options are: %s", trafficType, validTrafficTypes.String())
			}

	err = detectDefaultWebhookChange(p, kubeClient, iop, exists)
	if err != nil {
		return fmt.Errorf("failed to detect the default webhook change: %v", err)
	}

	// Warn users if they use `istioctl install` without any config args.
	if !rootArgs.DryRun && !iArgs.SkipConfirmation {
		prompt := fmt.Sprintf("This will install the Istio %s %q profile (with components: %s) into the cluster. Proceed? (y/N)",

	// This will get a network namespace ID. This ID is scoped to the network namespace we running in.
	// As such, we need to be in the host namespace: the CNI pod namespace has no relation to the users pod namespace.
	netns, err := runInHost(func() (string, error) { return getPodNetNs(pod) })
	if err != nil {
		m.With(resultLabel.Value(resultFail)).Increment()
		return fmt.Errorf("get netns: %v", err)
	}

        user: 54643f96-eca0-11e9-bb97-42010a80000a
      name: 54643f96-eca0-11e9-bb97-42010a80000a
    current-context: 54643f96-eca0-11e9-bb97-42010a80000a
    kind: Config
    preferences: {}
    users:
    - name: 54643f96-eca0-11e9-bb97-42010a80000a
      user:
        token: token
---
`, clusterNameAnnotationKey, secretName, key)

				if diff := cmp.Diff(got, wantOutput); diff != "" {

	baseName := filepath.Base(root.IstioConfig)
	configType := filepath.Ext(root.IstioConfig)
	configName := baseName[0 : len(baseName)-len(configType)]
	if configType != "" {
		configType = configType[1:]
	}

	// Allow users to override some variables through $HOME/.istioctl/config.yaml
	// and environment variables.
	viper.SetEnvPrefix("ISTIOCTL")
	viper.AutomaticEnv()
	viper.AllowEmptyEnv(true) // So we can say ISTIOCTL_CERT_DIR="" to suppress certs

	}
	return messages, nil
}

func checkTracing(cli kube.CLIClient, messages *diag.Messages) error {
	// In 1.22, we remove the default tracing config which points to zipkin.istio-system
	// This has no effect for users, unless they have this service.
	svc, err := cli.Kube().CoreV1().Services("istio-system").Get(context.Background(), "zipkin", metav1.GetOptions{})
	if err != nil && !kerrors.IsNotFound(err) {
		return err
	}

		matches = append(matches, renderMatch(trafficMatch))
	}
	return strings.Join(matches, ", ")
}

func renderMatch(match *v1alpha3.HTTPMatchRequest) string {
	retval := "Match: "
	// TODO Are users interested in seeing Scheme, Method, Authority?
	if match.Uri != nil {
		retval += renderStringMatch(match.Uri)

		if match.IgnoreUriCase {
			retval += " uncased"
		}
	}

	if len(match.Headers) > 0 {