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Supervisor

Supervisor is a client/server system that allows its users to monitor and control a number of processes on UNIX-like operating systems.

-- Supervisor: A Process Control System — Supervisor 4.2.5 documentation

Pros

  • HTTP server to monitor your services. It can be enabled by specifying the [inet_http_server] setting inside /etc/supervisor/supervisord.conf. It shouldn't be exposed on the internet though.
  • Easy to set up log rotation. It can also be configured with Logrotate.

Cons

  • needs additional installation, in contrast to Systemd, that comes pre-installed on most linux distributions
  • can not bind to privileged ports, smaller than 1024

Setup

$ sudo apt-get -y install supervisor
$ sudo systemctl enable supervisor
$ sudo systemctl start supervisor
  1. Place your Django application under /srv [^srv] inside a directory called my_awesome_project.
  2. Create your virtual environment inside the same directory in a directory called .venv.
  3. Now you can create a new file inside /etc/supervisor/conf.d/ called my_awesome_project.conf:
[program:my_awesome_project]
directory=/srv/%(program_name)s
command=/srv/%(program_name)s/run
environment=/srv/%(program_name)s/.venv
stderr_logfile=/var/log/supervisor/%(program_name)s_stderr.log
stdout_logfile=/var/log/supervisor/%(program_name)s_stdout.log

After you saved the file, you need to tell Supervisor to reload the configuration:

$ sudo supervisorctl reread
$ sudo supervisorctl update