webhookName = "sidecar-injector.istio.io"
	// defaultInjectorConfigMapName is the default name of the ConfigMap with the injection config
	// The actual name can be different - use getInjectorConfigMapName
	defaultInjectorConfigMapName = "istio-sidecar-injector"
)

var injectionEnabled = env.Register("INJECT_ENABLED", true, "Enable mutating webhook handler.")

func IsIstioControlPlane(r *resource.Instance) bool {
	if _, ok := r.Metadata.Labels["istio"]; ok {
		return true
	}
	if r.Metadata.Labels["release"] == "istio" {
		return true
	}
	return false
}

func GetInjectorConfigMapName(revision string) string {
	name := InjectionConfigMap
	if revision == "" || revision == "default" {
		return name
	}
	return name + "-" + revision

		if nsRevision, ok := injectedNamespaces[r.Metadata.FullName.Namespace.String()]; ok {
			// Generate the injection configmap name with different revision for every pod
			injectionCMName = util.GetInjectorConfigMapName(nsRevision)
		} else {
			return true
		}

		// If the pod has been annotated with a custom sidecar, then ignore as
		// it always overrides the injector logic.

			return true
		}

		// verify the enableNamespacesByDefault flag in injection configmaps
		c.ForEach(gvk.ConfigMap, func(r *resource.Instance) bool {
			injectionCMName := util.GetInjectorConfigMapName(nsRevision)
			if r.Metadata.FullName.Name.String() == injectionCMName {
				cm := r.Message.(*v1.ConfigMap)
				enableNamespacesByDefault = GetEnableNamespacesByDefaultFromInjectedConfigMap(cm)
				return false