Supervisord config for running multiple processes in a single container.

supervisord.conf

## service.conf

# skel ref: https://github.com/Supervisor/supervisor/blob/master/supervisor/skel/sample.conf

# requires:
#           pip install supervisor
#           pip install supervisord-dependent-startup


[supervisord]
pidfile=/tmp/supervisord.pid
nodaemon=true
# user=nobody
user=root
loglevel=INFO


[rpcinterface:supervisor]
supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface


[unix_http_server]
file=/tmp/supervisor.sock


[supervisorctl]
serverurl=unix:///tmp/supervisor.sock         ; use a unix:// URL  for a unix socket
prompt=worker_supervision    ; cmd line prompt (default "supervisor")
history_file=~/.sc_history   ; use readline history if available


[program:webservice]
command=bash startup/start_webservice.sh
numprocs=1
priority=1
autostart=false
autorestart=true
startretries=5
startsecs=5
stderr_logfile=/dev/stdout
stderr_logfile_maxbytes = 0
stdout_logfile=/dev/stdout
stdout_logfile_maxbytes = 0
environment = PYTHONUNBUFFERED=1
dependent_startup=true


[program:nats_worker]
command=python startup/start_nats_worker.py
numprocs=3
priority=5
process_name = %(program_name)s_%(process_num)02d
autostart=false
autorestart=true
startretries=5
startsecs=10
stderr_logfile=/dev/stderr
stderr_logfile_maxbytes = 0
stdout_logfile=/dev/stdout
stdout_logfile_maxbytes = 0
environment = PYTHONUNBUFFERED=1
dependent_startup=true
dependent_startup_wait_for=webservice:running


# ensures ordered startup
[eventlistener:dependentstartup]
command=python -m supervisord_dependent_startup -c supervisord.conf
autostart=true
autorestart=unexpected
startretries=0
exitcodes=0,3
events=PROCESS_STATE_RUNNING


# cleanly exits the docker container by stopping supervisord if the number of retries has been exceeded
[eventlistener:quit_on_failure]
events=PROCESS_STATE_FATAL
command=sh -c 'echo "READY"; while read -r line; do echo "$line"; kill -SIGTERM $PPID; done'