Icinga / Nagios compatible return codes

[verbosemode]

There are already plenty of Icinga/Nagios plugins out there. Maybe you want to implement their kind of standard return codes:

• 0 - OK
• 1 - Warning
• 2 - Critical
• 3 or anything else is Unknown

https://www.monitoring-plugins.org/doc/guidelines.html#RETURNCODES

This would allow us to reuse some of the existing monitoring plugins (not in every case -> beware of crappy plugins -> ugly shell scripts, insecure C, ... :D)

https://www.monitoring-plugins.org/ https://exchange.icinga.org/ https://exchange.nagios.org/

[sternenseemann]

:+1: