if client == nil {
		return isZtunnel
	}
	pod, err := client.Kube().CoreV1().Pods(podNamespace).Get(context.Background(), podName, metav1.GetOptions{})
	if err != nil {
		return isZtunnel
	}
	if v, ok := pod.Labels["app"]; ok {
		return v == "ztunnel"
	}
	return isZtunnel
}

// InAmbient returns true if a resource is in ambient data plane mode.
func InAmbient(obj metav1.Object) bool {
	if obj == nil {
		return false

	}

	if len(mgArgs.Components) != 0 {
		filteredManifests := name.ManifestMap{}
		for _, cArg := range mgArgs.Components {
			componentName := name.ComponentName(cArg)
			if cManifests, ok := manifests[componentName]; ok {
				filteredManifests[componentName] = cManifests
			} else {
				return fmt.Errorf("incorrect component name: %s. Valid options: %v", cArg, name.AllComponentNames)
			}
		}

	if err != nil {
		return nil, fmt.Errorf("error loading existing CNI config (JSON error): %v", err)
	}

	delete(istioMap, "cniVersion")

	var newMap map[string]any

	if _, ok := existingMap["type"]; ok {
		// Assume it is a regular network conf file
		delete(existingMap, "cniVersion")

		plugins := make([]map[string]any, 2)
		plugins[0] = existingMap
		plugins[1] = istioMap

	log.Debug("sending snapshot to ztunnel")
	if err := z.sendSnapshot(ctx, conn); err != nil {
		return err
	}
	for {
		// listen for updates:
		select {
		case update, ok := <-conn.Updates:
			if !ok {
				log.Debug("update channel closed - returning")
				return nil
			}
			log.Debugf("got update to send to ztunnel")
			resp, err := conn.sendDataAndWaitForAck(update.Update, update.Fd)

      "kubeconfig": "__KUBECONFIG_FILEPATH__",
      "cni_bin_dir": "/opt/cni/bin",
      "exclude_namespaces": [ "istio-system" ]
  }
}
`
)

func getEnv(key, fallback string) string {
	if value, ok := os.LookupEnv(key); ok {
		return value
	}
	return fallback
}

func setEnv(key, value string, t *testing.T) {
	t.Helper()
	err := os.Setenv(key, value)
	if err != nil {

	for {
		select {
		case event, ok := <-watcher.Events:
			if !ok {
				return
			}
			if event.Op&(fsnotify.Create|fsnotify.Write|fsnotify.Remove) != 0 {
				log.Infof("file modified: %v", event.Name)
				fileModified <- struct{}{}
			}
		case err, ok := <-watcher.Errors:
			if !ok {
				return
			}
			errChan <- err
		}
	}
}

	results, ok := c.Results[podName]
	if !ok {
		return nil, fmt.Errorf("unable to retrieve Pod: pods %q not found", podName)
	}
	return results, nil
}

func (c MockClient) EnvoyDoWithPort(ctx context.Context, podName, podNamespace, method, path string, port int) ([]byte, error) {
	results, ok := c.Results[podName]
	if !ok {

	fi, err := fs.Stat(proc, netnsName)
	if err != nil {
		return nil, err
	}

	inode, err := GetInode(fi)
	if err != nil {
		return nil, err
	}
	if _, ok := netnsObserved[inode]; ok {
		log.Debugf("netns: %d already processed. skipping", inode)
		return nil, nil
	}

	cgroup, err := proc.Open(path.Join(entry.Name(), "cgroup"))
	if err != nil {
		return nil, nil
	}

		return ""
	}

	prefix, ok := colorPrefixes[m.Type.Level()]
	if !ok {
		return ""
	}
	return prefix
}

func colorSuffix(colorize bool) string {
	if !colorize {
		return ""
	}
	return "\033[0m"
}

func IstioctlColorDefault(writer io.Writer) bool {
	if strings.EqualFold(termEnvVar.Get(), "dumb") {
		return false
	}

	file, ok := writer.(*os.File)
	if ok {

		return "None"
	}

	if svc, ok := services[wl.Waypoint.Destination]; ok {
		return svc.Name
	}

	return "NA" // Shouldn't normally reach here
}

func serviceWaypointName(svc *ZtunnelService, services map[string]*ZtunnelService) string {
	if svc.Waypoint == nil {
		return "None"
	}

	if svc, ok := services[svc.Waypoint.Destination]; ok {
		return svc.Name
	}