Configure rsyslog to listen over a unix domain socket instead of a port

- Add a placeholder rsyslog.conf so it doesn't fail on start
 - Create access restricted directory for unix socket to be created in
 - Create RSyslogHandler to exit early when logging socket doesn't exist
 - Write updated logging settings when dispatcher comes up and restart rsyslog so they  take effect
 - Move rsyslogd to the web container and create rpc supervisor.sock
 - Add env var for supervisor.conf path

installer/roles/image_build/files/supervisor.conf

@@ -46,8 +46,20 @@ stdout_logfile_maxbytes=0
 stderr_logfile=/dev/stderr
 stderr_logfile_maxbytes=0
 
+[program:awx-rsyslogd]
+command = rsyslogd -n -i /var/run/tower/sockets/rsyslog.pid -f /var/lib/awx/rsyslog/rsyslog.conf
+autostart = true
+autorestart = true
+stopwaitsecs = 1
+stopsignal=KILL
+stopasgroup=true
+killasgroup=true
+redirect_stderr=true
+stdout_logfile=/dev/stderr
+stdout_logfile_maxbytes=0
+
 [group:tower-processes]
-programs=nginx,uwsgi,daphne,wsbroadcast
+programs=nginx,uwsgi,daphne,wsbroadcast,awx-rsyslogd
 priority=5
 
 # TODO: Exit Handler
@@ -62,10 +74,10 @@ events=TICK_60
 priority=0
 
 [unix_http_server]
-file=/tmp/supervisor.sock
+file=/var/run/tower/sockets/supervisor.web.sock
 
 [supervisorctl]
-serverurl=unix:///tmp/supervisor.sock ; use a unix:// URL  for a unix socket
+serverurl=unix:///var/run/tower/sockets/supervisor.web.sock ; use a unix:// URL  for a unix socket
 
 [rpcinterface:supervisor]
 supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface