112 lines
2.6 KiB
Text
112 lines
2.6 KiB
Text
|
#!/usr/bin/env python3
|
||
|
|
# pylint: disable=invalid-name
|
||
|
|
# pylint: enable=invalid-name
|
||
|
|
|
||
|
|
"""Munin plugin to monitor systemd service status.
|
||
|
|
|
||
|
|
=head1 NAME
|
||
|
|
|
||
|
|
systemd_status - monitor systemd service status, including normal services,
|
||
|
|
mounts, hotplugs and socket activations
|
||
|
|
|
||
|
|
=head1 APPLICABLE SYSTEMS
|
||
|
|
|
||
|
|
Linux systems with systemd installed.
|
||
|
|
|
||
|
|
=head1 CONFIGURATION
|
||
|
|
|
||
|
|
No configuration is required for this plugin.
|
||
|
|
|
||
|
|
Warning level for systemd "failed" state is set to 0:0. If any of the services
|
||
|
|
enters "failed" state, Munin will emit warning.
|
||
|
|
|
||
|
|
=head1 AUTHOR
|
||
|
|
|
||
|
|
Kim B. Heino <b@bbbs.net>
|
||
|
|
|
||
|
|
=head1 LICENSE
|
||
|
|
|
||
|
|
GPLv2
|
||
|
|
|
||
|
|
=head1 MAGIC MARKERS
|
||
|
|
|
||
|
|
#%# family=auto
|
||
|
|
#%# capabilities=autoconf
|
||
|
|
|
||
|
|
=cut
|
||
|
|
|
||
|
|
"""
|
||
|
|
|
||
|
|
import os
|
||
|
|
import re
|
||
|
|
import subprocess
|
||
|
|
import sys
|
||
|
|
|
||
|
|
|
||
|
|
STATES = (
|
||
|
|
'failed',
|
||
|
|
'dead',
|
||
|
|
'running',
|
||
|
|
'exited',
|
||
|
|
'active',
|
||
|
|
'listening',
|
||
|
|
'waiting',
|
||
|
|
'plugged',
|
||
|
|
'mounted',
|
||
|
|
)
|
||
|
|
|
||
|
|
|
||
|
|
def config():
|
||
|
|
"""Autoconfig values."""
|
||
|
|
print('graph_title systemd services')
|
||
|
|
print('graph_vlabel Services')
|
||
|
|
print('graph_category processes')
|
||
|
|
print('graph_args --base 1000 --lower-limit 0')
|
||
|
|
print('graph_scale no')
|
||
|
|
print('graph_info Number of services in given activation state.')
|
||
|
|
for state in STATES:
|
||
|
|
print('{state}.label Services in {state} state'.format(state=state))
|
||
|
|
print('failed.warning 0:0')
|
||
|
|
if os.environ.get('MUNIN_CAP_DIRTYCONFIG') == '1':
|
||
|
|
fetch()
|
||
|
|
|
||
|
|
|
||
|
|
def fetch():
|
||
|
|
"""Print runtime values."""
|
||
|
|
# Get data
|
||
|
|
try:
|
||
|
|
# deb9/py3.5 doesn't have encoding parameter in subprocess
|
||
|
|
output = subprocess.check_output(['/bin/systemctl', 'list-units'])
|
||
|
|
except (OSError, subprocess.CalledProcessError):
|
||
|
|
return
|
||
|
|
output = output.decode('utf-8', 'ignore')
|
||
|
|
|
||
|
|
# Parse data
|
||
|
|
states = {state: 0 for state in STATES}
|
||
|
|
for line in output.splitlines():
|
||
|
|
token = line.split()
|
||
|
|
if len(token) < 4:
|
||
|
|
continue
|
||
|
|
if len(token[0]) < 3: # Skip failed-bullet
|
||
|
|
token = token[1:]
|
||
|
|
if token[0].endswith('.scope'):
|
||
|
|
continue # Ignore scopes
|
||
|
|
if re.match(r'user.*@\d+\.service', token[0]):
|
||
|
|
continue # These fail randomly in older systemd
|
||
|
|
if token[3] in states:
|
||
|
|
states[token[3]] = states[token[3]] + 1
|
||
|
|
|
||
|
|
# Output
|
||
|
|
for state in STATES:
|
||
|
|
print('{}.value {}'.format(state, states[state]))
|
||
|
|
|
||
|
|
|
||
|
|
if __name__ == '__main__':
|
||
|
|
if len(sys.argv) > 1 and sys.argv[1] == 'autoconf':
|
||
|
|
print('yes' if os.path.exists('/run/systemd/system') else
|
||
|
|
'no (systemd is not running)')
|
||
|
|
elif len(sys.argv) > 1 and sys.argv[1] == 'config':
|
||
|
|
config()
|
||
|
|
else:
|
||
|
|
fetch()
|