CheckGlobalLabelEqual checks if two objects both has the global label.

IsObjectGlobal return if an object is global.

NewCommonController returns a new *CommonController.

NewPVController returns a new *PVController.

NewServiceController returns a new *ServiceController.

SetObjectGlobal add global annotation to an object.

CommonController is a controller sync configMaps and secrets from master cluster to client cluster.

PVController is a controller sync pvc and pv from client cluster to master cluster PV should be created in client, then sync to master cluster.

ServiceController is a controller sync service and endpoints from master cluster to client cluster.

Controller is an interface which should only contains a method Run.