routines

type CappingPostProcessor struct{}

type IntegerCPUPostProcessor struct{}

type RecommendationPostProcessor interface {
	Process(vpa *vpa_types.VerticalPodAutoscaler, recommendation *vpa_types.RecommendedPodResources) *vpa_types.RecommendedPodResources
}

type Recommender interface {
	// RunOnce performs one iteration of recommender duties followed by update of recommendations in VPA objects.
	RunOnce()
	// GetClusterState returns ClusterState used by Recommender
	GetClusterState() *model.ClusterState
	// GetClusterStateFeeder returns ClusterStateFeeder used by Recommender
	GetClusterStateFeeder() input.ClusterStateFeeder
	// UpdateVPAs computes recommendations and sends VPAs status updates to API Server
	UpdateVPAs()
	// MaintainCheckpoints stores current checkpoints in API Server and garbage collect old ones
	// MaintainCheckpoints writes at least minCheckpoints if there are more checkpoints to write.
	// Checkpoints are written until ctx permits or all checkpoints are written.
	MaintainCheckpoints(ctx context.Context, minCheckpoints int)
}

type RecommenderFactory struct {
	ClusterState *model.ClusterState

	ClusterStateFeeder     input.ClusterStateFeeder
	ControllerFetcher      controllerfetcher.ControllerFetcher
	CheckpointWriter       checkpoint.CheckpointWriter
	PodResourceRecommender logic.PodResourceRecommender
	VpaClient              vpa_api.VerticalPodAutoscalersGetter

	RecommendationPostProcessors []RecommendationPostProcessor

	CheckpointsGCInterval time.Duration
	UseCheckpoints        bool
}