helper

Documentation

Index

• func EnqueueRequestsFromMapFunc(fn MapFunc) handler.EventHandler
• type MapFunc

Functions

func EnqueueRequestsFromMapFunc

func EnqueueRequestsFromMapFunc(fn MapFunc) handler.EventHandler

EnqueueRequestsFromMapFunc enqueues Requests by running a transformation function that outputs a collection of reconcile.Requests on each Event. The reconcile.Requests may be for an arbitrary set of objects defined by some user specified transformation of the source Event. (e.g. trigger Reconciler for a set of objects in response to a cluster resize event caused by adding or deleting a Node)

EnqueueRequestsFromMapFunc is frequently used to fan-out updates from one object to one or more other objects of a differing type.

For UpdateEvents which contain both a new and old object, the transformation function is run on both objects and both sets of Requests are enqueue.

Types

type MapFunc

type MapFunc func(context.Context, client.Object) []reconcile.Request

MapFunc is the signature required for enqueueing requests from a generic function. This type is usually used with EnqueueRequestsFromMapFunc when registering an event handler.