state

type Factory func(map[string]interface{}) (State, error)

type State interface {
	// UpsertNode updates the node
	UpsertNode(*proto.Node) error

	// UpsertCluster upserts the cluster
	UpsertCluster(*proto.Cluster) error

	// Apply changes to a resource
	Apply(*proto.Component) error

	// Get returns a component
	Get(name string) (*proto.Component, error)

	// GetTask returns a new task to apply
	GetTask(ctx context.Context) (*proto.ComponentTask, error)

	// LoadCluster loads a cluster from memory
	LoadCluster(id string) (*proto.Cluster, error)

	// Finalize notifies when a component has been reconciled
	Finalize(id string) error

	// Close closes the state
	Close() error
}