trying to determine if a Horizon install is working in a TripleO Quickstart install. The service on the controller node has been configured as per https://docs.openstack.org/ocata/install-guide-rdo/horizon-install.html, the httpsd and memcached services show as running with systemctl status (although httpd does complain about "overcloud-controller-0 python[122833]: ERROR:scss.ast:Function not found: function-exists:1"). I figure it would require at least one SSH tunnel to bring up the UI in a local browser, but just to see if it even seems to be active I tried connecting to the service with links on the controller itself, and it says "unable to retrieve http://localhost:5000/: connection refused". Still don't know if it's just that I can't validate it that way, or it's still not running