if err == nil {
		logger.V(4).Info("QuotaMonitor using a shared informer", "resource", resource.String())
		shared.Informer().AddEventHandlerWithResyncPeriod(handlers, qm.resyncPeriod())
		return shared.Informer().GetController(), nil
	}
	logger.V(4).Error(err, "QuotaMonitor unable to use a shared informer", "resource", resource.String())

	// TODO: if we can share storage with garbage collector, it may make sense to support other resources

	// need to clone because it's from a shared cache
	shared.Informer().AddEventHandlerWithResyncPeriod(handlers, ResourceResyncTime)
	return shared.Informer().GetController(), shared.Informer().GetStore(), nil
}

// syncMonitors rebuilds the monitor set according to the supplied resources,
// creating or deleting monitors as necessary. It will return any error