podItem := podUpdateItem{newPod.Namespace, newPod.Name}
		nc.podUpdateQueue.Add(podItem)
	}
}

func (nc *Controller) doPodProcessingWorker(ctx context.Context) {
	for {
		obj, shutdown := nc.podUpdateQueue.Get()
		// "podUpdateQueue" will be shutdown when "stopCh" closed;
		// we do not need to re-check "stopCh" again.
		if shutdown {
			return
		}