informers

type InformerPair struct {
	// GenericLister is a lister that helps list generic resource.
	// All objects returned here must be treated as read-only.
	Lister cache.GenericLister

	// Informer provides add and get Indexers ability based on SharedInformer.
	Informer cache.SharedIndexInformer
}

type KubeEdgeCustomInformer interface {
	EdgeNode() cache.SharedIndexInformer
}

type Manager interface {
	// GetKubeInformerFactory return kubernetes built-in resources InformerFactory
	GetKubeInformerFactory() k8sinformer.SharedInformerFactory

	// GetKubeEdgeInformerFactory return KubeEdge CRD resources InformerFactory
	GetKubeEdgeInformerFactory() edgeinformers.SharedInformerFactory

	// GetDynamicInformerFactory return third-party CRD resources InformerFactory
	GetDynamicInformerFactory() dynamicinformer.DynamicSharedInformerFactory

	// KubeEdgeCustomInformer return custom informer
	KubeEdgeCustomInformer

	// Start start all InformerFactory
	Start(stopCh <-chan struct{})

	// GetInformerPair return InformerPair for the given GVR
	GetInformerPair(gvr schema.GroupVersionResource) (*InformerPair, error)

	// GetLister return cached lister for the given GVR
	GetLister(gvr schema.GroupVersionResource) (cache.GenericLister, error)
}