Comment 9 for bug 1683585

I was just working through the RDO docs and have been snagged by this issue for a few days now.

The suggested fix of changing the endpoints worked for me (although I used `openstack endpoint set --url http://controller:8778 $endpointID`).

The relevant file for RDO `/etc/httpd/conf.d/00-nova-placement-api.conf` defaulted to listening on port `8778` for me as well.