Comment 1 for bug 1805672

So there are several bugs here.

  1) maas-proxy fails to start
  2) RBAC was using the same port, 8000, as the proxy
  3) The configauth command shows help when something
     goes wrong.

I think the real bug that we need to focus on is 1)

2) has already been fixed, RBAC now uses port 5000 by default

3) is not RBAC specific and nothing new. You can reproduce
the same behavior by running the createadmin command twice,
using the same parameters both times.