#!/usr/bin/env python3 # -*- encoding: utf-8 -*- ##################################################################### # (c) 2007-2011 by Sven Velt and team(ix) GmbH, Nuernberg, Germany # # sv@teamix.net # # (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 . # ##################################################################### import os import re import sys import urllib.request, urllib.error, urllib.parse 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) ############################################################ class CheckApaches(MonitoringPlugin): apache_busy = None apache_idle = None apache_scoreboard = None apache_states = None data = None url = None def analyze(self): try: self.apache_idle = int(re.search('Idle(?:Workers|Servers): (\d+)\n', self.data).group(1)) self.apache_busy = int(re.search('Busy(?:Workers|Servers): (\d+)\n', self.data).group(1)) except: self.back2nagios(2, 'Could not analyze data!') self.apache_scoreboard = re.search('Scoreboard: (.*)\n', self.data) if self.apache_scoreboard: self.apache_states = {'_':0, 'S':0, 'R':0, 'W':0, 'K':0, 'D':0, 'C':0, 'L':0, 'G':0, 'I':0, '.':0,} for worker in self.apache_scoreboard.group(1): self.apache_states[worker] += 1 pass def check_worker(self, target='busy', warn='', crit=''): pd = {'label':'worker_busy', 'unit':'', 'warn':warn, 'crit': crit, 'min':0} if target == 'busy': returncode = self.value_wc_to_returncode(self.apache_busy, warn, crit) output = '%d busy workers' % self.apache_busy pd['value'] = self.apache_busy elif target == 'idle': returncode = self.value_wc_to_returncode(self.apache_idle, warn, crit) output = '%d idle workers' % self.apache_idle pd['value'] = self.apache_idle pd['label'] = 'worker_idle' return self.remember_check('worker', returncode, output, perfdata=[pd], target=target) def get_server_status(self): if self.options.httpauth: httpauth = self.options.httpauth.split(':') if len(httpauth) != 2: self.back2nagios(3, 'Wrong format of authentication data! Need "USERNAME:PASSWORD", got "' + self.options.httpauth + '"') passman = urllib.request.HTTPPasswordMgrWithDefaultRealm() passman.add_password(None, url, httpauth[0], httpauth[1]) authhandler = urllib.request.HTTPBasicAuthHandler(passman) opener = urllib.request.build_opener(authhandler) urllib.request.install_opener(opener) try: self.data = urllib.request.urlopen(self.url).read().decode() except urllib.error.HTTPError as e: self.back2nagios(2, 'Could not read data! ' + str(e)) except urllib.error.URLError as e: self.back2nagios(2, 'Could not connect to server!') pass def set_status_url(self): if self.options.url: self.url = self.options.url else: if self.options.proto not in ['http', 'https']: self.back2nagios(3, 'Unknown protocol "' + self.options.proto + '"') if not self.options.port: if self.options.proto == 'https': self.options.port = '443' else: self.options.port = '80' self.url = self.options.proto + '://' + self.options.host + ':' + self.options.port + '/' + self.options.uri + '?auto' pass ############################################################ def main(): plugin = CheckApaches( pluginname='check_apaches', tagforstatusline='APACHE', description='Check Apache workers', version='0.1', ) plugin.add_cmdlineoption('-H', '', 'host', 'Hostname/IP to check', default='localhost') plugin.add_cmdlineoption('-p', '', 'port', 'port to connect', default=None) plugin.add_cmdlineoption('-P', '', 'proto', 'protocol to use', default='http') plugin.add_cmdlineoption('-u', '', 'uri', 'path to "server-status"', default='/server-status') plugin.add_cmdlineoption('-U', '', 'url', 'complete URL to "server-status", overrides other options', default=None) plugin.add_cmdlineoption('-a', '', 'httpauth', 'HTTP Username and Password, separated by ":"') plugin.add_cmdlineoption('-w', '', 'warn', 'OBSOLETE: warning thresold', default='') plugin.add_cmdlineoption('-c', '', 'crit', 'OBSOLETE: warning thresold', default='') plugin.add_cmdlineoption('', '--statistics', 'statistics', 'Output worker statistics', action='store_true') plugin.parse_cmdlineoptions() plugin.set_status_url() plugin.verbose(1, 'Status URL: ' + plugin.url) plugin.get_server_status() plugin.verbose(2, 'Got data:') plugin.verbose(2, plugin.data) plugin.analyze() checks = plugin.args2checks() # backward compatibility if len(checks) == 0: checks = [ ('worker','busy','20','50'), ('worker','idle','20:','5:'), ] for quad in checks: (check, target, warn, crit) = tuple(quad) if check == 'worker': result = plugin.check_worker(target, warn, crit) else: result = plugin.remember_check(check, plugin.RETURNCODE['UNKNOWN'], 'Unknown check "' + check + '"!') plugin.verbose(5, result) if plugin.options.statistics: plugin.add_multilineoutput(str(plugin.apache_states['_']) + ' waiting for connection') plugin.add_multilineoutput(str(plugin.apache_states['S']) + ' starting up') plugin.add_multilineoutput(str(plugin.apache_states['R']) + ' reading request') plugin.add_multilineoutput(str(plugin.apache_states['W']) + ' writing/sending reply') plugin.add_multilineoutput(str(plugin.apache_states['K']) + ' keepalive') plugin.add_multilineoutput(str(plugin.apache_states['D']) + ' looking up in DNS') plugin.add_multilineoutput(str(plugin.apache_states['C']) + ' closing connection') plugin.add_multilineoutput(str(plugin.apache_states['L']) + ' logging') plugin.add_multilineoutput(str(plugin.apache_states['G']) + ' gracefully finishing') plugin.add_multilineoutput(str(plugin.apache_states['I']) + ' idle cleanup of worker') plugin.add_multilineoutput(str(plugin.apache_states['.']) + ' open slots(up to ServerLimit)') plugin.brain2output() plugin.exit() if __name__ == '__main__': main() #vim: ts=4 sts=4 sw=4