checkmk-monitoring-plugins/release-info/check_release_info

#!/usr/bin/env python3
#
# Prints the debian/ubuntu release info and sets state by codename
# The package 'lsb-release' is required for this check.

import subprocess

ok_list = ['bullseye', 'bookworm', 'trixie', 'forky', 'jammy', 'focal']
warn_list = ['buster', 'bionic', 'xenial']

cmd = ["/usr/bin/lsb_release", "-ircs"]

stdout, stderr = subprocess.Popen(cmd,stdout=subprocess.PIPE,stderr=subprocess.PIPE).communicate()
dist, version, codename, null = stdout.decode('utf-8').split('\n')

if codename in ok_list:
    state = 0
elif codename in warn_list:
    state = 1
else:
    state = 2

print ('%s "Distribution Info" - %s %s %s' % (state, dist, version, codename))