[#1] prepare image

conf/etc/supervisord.conf

+[supervisord]
+user            = root
+nodaemon        = true
+logfile         = /dev/null
+logfile_maxbytes= 0
+
+[program:rsyslog]
+command         = rsyslogd -n
+autostart       = true
+autorestart     = true
+startsecs       = 2
+stopwaitsecs    = 2
+stdout_logfile  = /dev/stdout
+stderr_logfile  = /dev/stderr
+stdout_logfile_maxbytes = 0
+stderr_logfile_maxbytes = 0
+
+[program:postfix]
+command         = /usr/sbin/postfix -c /etc/postfix start-fg
+autostart       = true
+autorestart     = false
+directory       = /etc/postfix
+startsecs       = 0