Construction should create informers (via `kclient.New`), setup a queue (via `controllers.NewQueue`), and register event handlers on the informers.
Often, these handlers are adding something to the queue like `client.AddEventHandler(controllers.ObjectHandler(queue.AddObject))`.
Construction should NOT actually start running all of these things, do I/O, or block in anyway.

/pkg/kube/                                                       @istio/wg-networking-maintainers
/pkg/mcp/                                                        @istio/wg-networking-maintainers
/pkg/queue/                                                      @istio/wg-networking-maintainers
/pkg/security/                                                   @istio/wg-security-maintainers @istio/wg-environments-maintainers