To run background scripts, Supervisord is a powerfull and easy to install tool. Circus is a good alternative, but I didn’t test it.
This is a small tutorial to install Supervisord on Debian and Ubuntu :
Install
Install supervisor with PIP
# pip install supervisor
Configuration
Create en configuration file, for example in /home/<user>/supervisord.conf
example :
[unix_http_server] file=<pathtosock>/supervisord.sock # ex: /var/run/supervisord.sock [inet_http_server] port=*:9000 username=default password=default [supervisord] logfile=<pathtologfile>/supervisord.log # ex: /var/log/supervisord/supervisord.log logfile_maxbytes=50MB logfile_backups=10 loglevel=info pidfile=<pathtopidfile>/supervisord.pid # ex: /var/run/supervisord.pid nodaemon=false minfds=1024 minprocs=200 user=<user> # (if possible, not root) #environment= [supervisorctl] serverurl=unix://<pathtosock>/supervisord.sock # ex: /var/run/supervisord.sock [rpcinterface:supervisor] supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface [program:project_server] directory=<pathtoapplication> # ex: /home/<user>/python/ command=<command> # ex: /usr/bin/python loop.py stdout_logfile=<pathtoapplicationlog>/stdout.log # ex: /var/log/<application>/stdout.log stdout_logfile_maxbytes=5MB stdout_logfile_backups=10 stdout_capture_maxbytes=5MB stderr_logfile=<pathtoapplicationlog>/stderr.log # ex: /var/log/<application>/stderr.log stderr_logfile_maxbytes=5MB stderr_logfile_backups=10 stderr_capture_maxbytes=5MB
Launch supervisord daemon :
sudo supervisord -c supervisord.conf
verify permission
ex:
chmod -R 777 /var/log/<application>/
chmod -R 777 /var/log/supervisord/
Start application:
Connect on interface :
http://<domain>:9000
login with default/default
Then press “start”
Process must have a loop
