= Supervisord =

'''`supervisord`''' is a process manager, mainly useful in [[Docker]] or [[Podman]] containers.

<<TableOfContents>>

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== Installation ==

Most container base images will have a `supervisord` package available.

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== Configuration ==

The below configuration demonstrates starting a process that forks itself (`crond(8)`-see [[Cron]]) and starting a process through the userspace utility ([[Postfix]]).

{{{
[supervisord]
childlogdir=/var/log/supervisord
logfile=/dev/stderr
logfile_maxbytes=0
nodaemon=true
user=root

[program:crond]
autostart=true
command=crond -f -l 2
redirect_stderr=true


[program:postfix]
autorestart=false
command=postfix start
startsecs=0
redirect_stderr=true
}}}



=== Log to stderr ===

To redirect logging, set the `logfile` option within the `[supervisord]` section. If the `logfile` is a non-searchable pseudofile (such as `/dev/stderr`), then `logfile_maxbytes` must be set to `0`.

{{{
[supervisord]
logfile=/dev/stderr
logfile_maxbytes=0
}}}

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== See also ==

[[https://supervisord.readthedocs.io/en/latest/|supervisord Documentation]]



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