At the moment, Vitrage is not allowed to listen on it's default port of 8999 through HTTPD because of SELinux.

======================================================
2017-11-23 06:40:10.863195 | primary |   Nov 23 06:40:10 centos-7-rax-iad-0001029438 systemd[1]: Starting The Apache HTTP Server...
2017-11-23 06:40:10.863265 | primary |   Nov 23 06:40:10 centos-7-rax-iad-0001029438 httpd[4715]: (13)Permission denied: AH00072: make_sock: could not bind to address [::]:8999
2017-11-23 06:40:10.863344 | primary |   Nov 23 06:40:10 centos-7-rax-iad-0001029438 httpd[4715]: (13)Permission denied: AH00072: make_sock: could not bind to address 0.0.0.0:8999
2017-11-23 06:40:10.863402 | primary |   Nov 23 06:40:10 centos-7-rax-iad-0001029438 httpd[4715]: no listening sockets available, shutting down
2017-11-23 06:40:10.863454 | primary |   Nov 23 06:40:10 centos-7-rax-iad-0001029438 httpd[4715]: AH00015: Unable to open logs
2017-11-23 06:40:10.863520 | primary |   Nov 23 06:40:10 centos-7-rax-iad-0001029438 systemd[1]: httpd.service: main process exited, code=exited, status=1/FAILURE
2017-11-23 06:40:10.863576 | primary |   Nov 23 06:40:10 centos-7-rax-iad-0001029438 kill[4717]: kill: cannot find process ""
2017-11-23 06:40:10.863637 | primary |   Nov 23 06:40:10 centos-7-rax-iad-0001029438 systemd[1]: httpd.service: control process exited, code=exited status=1
2017-11-23 06:40:10.863691 | primary |   Nov 23 06:40:10 centos-7-rax-iad-0001029438 systemd[1]: Failed to start The Apache HTTP Server.
2017-11-23 06:40:10.863744 | primary |   Nov 23 06:40:10 centos-7-rax-iad-0001029438 systemd[1]: Unit httpd.service entered failed state.
2017-11-23 06:40:10.863791 | primary |   Nov 23 06:40:10 centos-7-rax-iad-0001029438 systemd[1]: httpd.service failed.
======================================================