New plugin: check_apk for Alpine Linux

This commit is contained in:
Sven Velt 2023-04-03 20:38:51 +02:00
parent 598eeab975
commit fc37d736f5

177
check_apk.py Executable file
View file

@ -0,0 +1,177 @@
#!/usr/bin/env python3
# -*- encoding: utf-8 -*-
#####################################################################
# (c) 2016- by Sven Velt, Germany #
# sven-mymonplugins@velt.biz #
# #
# This file is part of "velt.biz - My Monitoring Plugins" #
# a fork of "team(ix) Monitoring Plugins" in 2015 #
# URL: https://gogs.velt.biz/velt.biz/MyMonPlugins/ #
# #
# This file is free software: you can redistribute it and/or modify #
# it under the terms of the GNU General Public License as published #
# by the Free Software Foundation, either version 2 of the License, #
# or (at your option) any later version. #
# #
# This file is distributed in the hope that it will be useful, but #
# WITHOUT ANY WARRANTY; without even the implied warranty of #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
# GNU General Public License for more details. #
# #
# You should have received a copy of the GNU General Public License #
# along with this file. If not, see <http://www.gnu.org/licenses/>. #
#####################################################################
import os
import subprocess
import sys
import time
try:
from MyMonPlugin import MonitoringPlugin
except ImportError:
print('==========================')
print('AIKS! Python import error!')
print('==========================\n')
print('Could not find class "MonitoringPlugin"!\n')
print('Did you download "%s"' % os.path.basename(sys.argv[0]))
print('without "MyMonPlugin/"?\n')
print('Please go back to')
print('https://gogs.velt.biz/velt.biz/MyMonPlugins and:')
print('- get a full archive at http://gogs.velt.biz/velt.biz/MyMonPlugins/releases')
print('- or a master snapshot at http://gogs.velt.biz/velt.biz/MyMonPlugins/archive/master.tar.gz\n')
sys.exit(127)
plugin = MonitoringPlugin(
pluginname='check_apk',
tagforstatusline='APK',
description='Check APK package manager for updates',
version='0.1',
)
plugin.add_cmdlineoption('-P', '--path-apk', 'apk', 'full path to apk', default='/sbin/apk')
plugin.add_cmdlineoption('-S', '--sync-repo-index', 'sync_repo_index', 'sync repository index files at startup', default=False, action='store_true')
plugin.add_cmdlineoption('', '--ignore-sync-failure', 'fail_on_sync_failure', 'ignore repo index sync failures', default=True, action='store_false')
plugin.add_cmdlineoption('', '--sudo', 'sudo', 'call "apk" with sudo', default=False, action='store_true')
plugin.add_cmdlineoption('', '--mymonplugins-testmode', 'mymonplugins_testmode', None, default=False, action='store_true')
plugin.parse_cmdlineoptions()
##############################################################################
##### Testmode
if plugin.options.mymonplugins_testmode:
mymonplugins_testmode = {}
mymonplugins_testmode['apk update'] = '''fetch http://dl-cdn.alpinelinux.org/alpine/latest-stable/main/x86_64/APKINDEX.tar.gz
fetch http://dl-cdn.alpinelinux.org/alpine/latest-stable/community/x86_64/APKINDEX.tar.gz
v3.17.3-13-g98fa1f428e9 [http://dl-cdn.alpinelinux.org/alpine/latest-stable/main]
v3.17.3-12-g492f704d069 [http://dl-cdn.alpinelinux.org/alpine/latest-stable/community]
OK: 17824 distinct packages available
'''.split('\n')
mymonplugins_testmode['apk -s upgrade'] = '''(1/6) Upgrading alpine-release (3.17.2-r0 -> 3.17.3-r0)
(2/6) Upgrading libcrypto3 (3.0.8-r1 -> 3.0.8-r3)
(3/6) Upgrading libssl3 (3.0.8-r1 -> 3.0.8-r3)
(4/6) Upgrading alpine-base (3.17.2-r0 -> 3.17.3-r0)
(5/6) Upgrading mkinitfs (3.7.0-r0 -> 3.7.0-r1)
(6/6) Upgrading openssl (3.0.8-r1 -> 3.0.8-r3)
OK: 258 MiB in 220 packages
'''.split('\n')
##############################################################################
def run_command(cmdline, needs_sudo=False):
tstart = time.time()
if needs_sudo and plugin.options.sudo:
new = ['sudo', '-n', '--']
new.extend(cmdline)
cmdline = new
plugin.verbose(1, 'Running command line: %s' % subprocess.list2cmdline(cmdline))
try:
cmd = subprocess.Popen(
cmdline,
stdout = subprocess.PIPE,
stderr = subprocess.PIPE
)
except OSError:
plugin.back2nagios(plugin.RETURNCODE['UNKNOWN'], 'Could not execute command line: %s' % subprocess.list2cmdline(cmdline))
(sout,serr) = cmd.communicate()
plugin.verbose(2, 'Runtime %.3fs' % (time.time() - tstart, ) )
sout = sout.rstrip().decode('utf-8').split('\n')
if sout == ['']:
sout = []
serr = serr.rstrip().decode('utf-8').split('\n')
if serr == ['']:
serr = []
return( (sout, serr, cmd.returncode,) )
##############################################################################
if plugin.options.sync_repo_index:
plugin.verbose(1, '-S/--sync_repo_index given')
cmdline = [plugin.options.apk, 'update', '--no-progress',]
(sout, serr, rc) = run_command(cmdline, needs_sudo=True)
sout and plugin.verbose(3, sout, prefix='stdout: ')
serr and plugin.verbose(3, serr, prefix='stderr: ')
plugin.verbose(2, 'Return code: %d' % rc)
if plugin.options.fail_on_sync_failure and (rc != 0 or 'ERROR:' in ' '.join(serr)):
if 'Permission denied' in ' '.join(serr):
plugin.back2nagios(plugin.RETURNCODE['CRITICAL'], 'Syncing of repository index files failed, permission denied. Do you need "--sudo"?', multiline=serr)
plugin.back2nagios(plugin.RETURNCODE['CRITICAL'], 'Syncing of repository index files failed', multiline=serr)
##############################################################################
cmdline = [plugin.options.apk, 'upgrade', '--simulate', '--no-progress',]
(sout, serr, rc) = run_command(cmdline)
sout and plugin.verbose(3, sout, prefix='stdout: ')
serr and plugin.verbose(3, serr, prefix='stderr: ')
plugin.verbose(2, 'Return code: %d' % rc)
if plugin.options.sudo and 'sudo: ' in ' '.join(serr):
# Running with sudo
if rc == 1:
# sudo RC 1: a password is required
plugin.back2nagios(plugin.RETURNCODE['CRITICAL'], ' '.join(serr))
if rc == 8:
# RC 8: Transaction aborted due to unresolved shlibs.
plugin.back2nagios(plugin.RETURNCODE['WARNING'], serr[-1], serr[:-1])
elif rc not in [0, 6]:
# RC 0: Packages to update
# RC 6: Package(s) already installed
plugin.back2nagios(plugin.RETURNCODE['WARNING'], 'Unknown returncode "%s", please contact the author of plugin or open an issue!' % rc)
action = {'Upgrading':[], 'Installing':[], 'Purging':[], }
action_verb = {'Upgrading':'upgrade', 'Installing':'install', 'Purging':'purge', }
for line in sout[0:-1]:
cols = line.split(' ')
# Append package name to action type list
action[cols[1]].append(cols[2])
if len(sout) == 1:
plugin.remember_check('Updates', plugin.RETURNCODE['OK'], 'Everything uptodate')
else:
out = []
multiline = []
for act in list(action.keys()):
pkgs = action.pop(act)
pkgs.sort()
l = len(pkgs)
out.append('%s package%s to %s' % (l, l != 1 and 's' or '', action_verb[act]) )
l and multiline.append('%s(%s): %s' % (act, l, ', '.join(pkgs)) )
out = ', '.join(out)
plugin.remember_check('Updates', plugin.RETURNCODE['CRITICAL'], out, multilineoutput=multiline)
# Exit
plugin.brain2output()
plugin.exit()