code: func newControllerInitializers() map[string]initFunc {
  	controllers := map[string]initFunc{}
  	controllers["cloud-node"] = startCloudNodeController
  	controllers["cloud-node-lifecycle"] = startCloudNodeLifecycleController
  	controllers["service"] = startServiceController
  	controllers["route"] = startRouteController
  	return controllers
  }
docs: // newControllerInitializers is a private map of named controller groups (you can start more than one in an init func)
  // paired to their initFunc.  This allows for structured downstream composition and subdivision.