code: func (c *AvailableConditionController) Run(threadiness int, stopCh <-chan struct{}) {
  	defer utilruntime.HandleCrash()
  	defer c.queue.ShutDown()
  
  	klog.Infof("Starting AvailableConditionController")
  	defer klog.Infof("Shutting down AvailableConditionController")
  
  	if !controllers.WaitForCacheSync("AvailableConditionController", stopCh, c.apiServiceSynced, c.servicesSynced, c.endpointsSynced) {
  		return
  	}
  
  	for i := 0; i < threadiness; i++ {
  		go wait.Until(c.runWorker, time.Second, stopCh)
  	}
  
  	<-stopCh
  }
docs: // Run starts the AvailableConditionController loop which manages the availability condition of API services.