supervisord.conf

[unix_http_server]
file=/tmp/supervisor.sock   ; (the path to the socket file)
chown=nobody:nogroup 	      ; socket file uid:gid owner

[supervisord]
logfile=/tmp/supervisord.log ; (main log file;default $CWD/supervisord.log)
logfile_maxbytes=50MB        ; (max main logfile bytes b4 rotation;default 50MB)
logfile_backups=10           ; (num of main logfile rotation backups;default 10)
loglevel=info                ; (log level;default info; others: debug,warn,trace)
pidfile=/tmp/supervisord.pid ; (supervisord pidfile;default supervisord.pid)
nodaemon=true   	           ; (start in foreground if true;default false)
minfds=1024                  ; (min. avail startup file descriptors;default 1024)
minprocs=200                 ; (min. avail process descriptors;default 200)

[program:powerdns-admin]
command=/usr/local/bin/gunicorn -t 120 --workers 4 --bind '0.0.0.0:9191' --log-level info app:app
directory=/powerdns-admin
autostart=true
priority=999
user=www-data
redirect_stderr=true
stdout_logfile=/dev/stdout
stdout_logfile_maxbytes=0