configMapName := kubeadmconstants.KubeProxyConfigMap
	klog.V(1).Infof("attempting to download the KubeProxyConfiguration from ConfigMap %q", configMapName)
	cm, err := h.fromConfigMap(clientset, configMapName, kubeadmconstants.KubeProxyConfigMapKey, false)
	if err != nil {

	e := &Signer{
		client:             cl,
		configMapKey:       options.ConfigMapNamespace + "/" + options.ConfigMapName,
		configMapName:      options.ConfigMapName,
		configMapNamespace: options.ConfigMapNamespace,
		secretNamespace:    options.TokenSecretNamespace,
		secretLister:       secrets.Lister(),
		secretSynced:       secrets.Informer().HasSynced,

			},
		},
		{
			name: "create configmap should ignore AlreadyExists error [no cache, live object exists]",
			clientObjects: []runtime.Object{

	configMapNamespace string
	configMapName      string
	callback           func(*v1.ConfigMap)

	hasSynced atomic.Bool
}

// NewController returns a new ConfigMap watcher controller.
func NewController(client kube.Client, namespace, name string, callback func(*v1.ConfigMap)) *Controller {
	c := &Controller{
		configMapNamespace: namespace,
		configMapName:      name,
		callback:           callback,
	}

	return newCM
}

func resetCalled() {
	called = false
	newCM = nil
}

func Test_ConfigMapWatcher(t *testing.T) {
	client := kube.NewFakeClient()
	cm := makeConfigMap(configMapName, "1")
	cm1 := makeConfigMap(configMapName, "2")
	cm2 := makeConfigMap("not-watched", "1")
	steps := []struct {
		added        *v1.ConfigMap
		updated      *v1.ConfigMap
		deleted      *v1.ConfigMap
		expectCalled bool

	"k8s.io/client-go/util/workqueue"
	"k8s.io/klog/v2"
	"k8s.io/utils/clock"
)

const (
	ConfigMapName    = "kube-apiserver-legacy-service-account-token-tracking"
	ConfigMapDataKey = "since"
	dateFormat       = "2006-01-02"
)

var (
	queueKey = metav1.NamespaceSystem + "/" + ConfigMapName
)

// Controller maintains a timestamp value configmap `kube-apiserver-legacy-service-account-token-tracking`

		FilterFunc: func(obj interface{}) bool {
			if cast, ok := obj.(*corev1.ConfigMap); ok {
				return cast.Name == c.configmapName && cast.Namespace == c.configmapNamespace
			}
			if tombstone, ok := obj.(cache.DeletedFinalStateUnknown); ok {
				if cast, ok := tombstone.Obj.(*corev1.ConfigMap); ok {
					return cast.Name == c.configmapName && cast.Namespace == c.configmapNamespace
				}
			}

		configMapName := "istio-ca-root-cert"
		err = cluster.Kube().CoreV1().ConfigMaps(systemNs.Name()).Delete(context.TODO(), configMapName,
			metav1.DeleteOptions{})
		if err == nil {
			log.Infof("configmap %v is deleted", configMapName)
		} else {
			log.Infof("configmap %v may not exist and the deletion returns err (%v)",
				configMapName, err)
		}
	}

	return nil
}

	configMapName := constants.KubeletBaseConfigurationConfigMap
	klog.V(1).Infof("attempting to download the KubeletConfiguration from ConfigMap %q", configMapName)
	cm, err := h.fromConfigMap(clientset, configMapName, constants.KubeletBaseConfigurationConfigMapKey, true)
	if err != nil {

		watcher, err = inject.NewFileWatcher(configFile, valuesFile)
		if err != nil {
			return nil, err
		}
	} else if s.kubeClient != nil {
		configMapName := getInjectorConfigMapName(args.Revision)
		cms := s.kubeClient.Kube().CoreV1().ConfigMaps(args.Namespace)
		if _, err := cms.Get(context.TODO(), configMapName, metav1.GetOptions{}); err != nil {
			if errors.IsNotFound(err) {
				log.Infof("Skipping sidecar injector, template not found")