NodeConditionChange = framework.ClusterEvent{Resource: framework.Node, ActionType: framework.UpdateNodeCondition, Label: "NodeConditionChange"}
	// PvAdd is the event when a persistent volume is added in the cluster.
	PvAdd = framework.ClusterEvent{Resource: framework.PersistentVolume, ActionType: framework.Add, Label: "PvAdd"}
	// PvUpdate is the event when a persistent volume is updated in the cluster.