Hey, is there an easy way to add a global host alias of some sort? I know there's an external service option to create a hostname alias, but it only works on hostname and not on ips. My use case is, i have an external (to kubes) mariadb cluster and on rancher 1.6 (cattle) i used the external service option to then link it to my containers as a service link. Is there a similar way to do this in kubes?