check_apaches: Rebuild plugin with quad check notation
This commit is contained in:
Sven Velt
parent
407d99c45d
commit
c1c132199d
211
check_apaches.py
211
check_apaches.py
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@ -5,7 +5,7 @@
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# (c) 2007-2011 by Sven Velt and team(ix) GmbH, Nuernberg, Germany #
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# sv@teamix.net #
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# (c) 2016- by Sven Velt, Germany #
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# sven-mymonplugins@velt.biz #
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# sven-mymonplugins@velt.biz #
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# #
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# This file is part of "velt.biz - My Monitoring Plugins" #
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# a fork of "team(ix) Monitoring Plugins" in 2015 #
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@ -45,91 +45,158 @@ except ImportError:
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print('- or a master snapshot at http://gogs.velt.biz/velt.biz/MyMonPlugins/archive/master.tar.gz\n')
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sys.exit(127)
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############################################################
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plugin = MonitoringPlugin(
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pluginname='check_apaches',
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tagforstatusline='APACHE',
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description='Check Apache workers',
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version='0.1',
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)
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class CheckApaches(MonitoringPlugin):
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plugin.add_cmdlineoption('-H', '', 'host', 'Hostname/IP to check', default='localhost')
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plugin.add_cmdlineoption('-p', '', 'port', 'port to connect', default=None)
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plugin.add_cmdlineoption('-P', '', 'proto', 'protocol to use', default='http')
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plugin.add_cmdlineoption('-u', '', 'url', 'path to "server-status"', default='/server-status')
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plugin.add_cmdlineoption('-a', '', 'httpauth', 'HTTP Username and Password, separated by ":"')
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plugin.add_cmdlineoption('-w', '', 'warn', 'warning thresold', default='20')
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plugin.add_cmdlineoption('-c', '', 'crit', 'warning thresold', default='50')
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plugin.add_cmdlineoption('', '--statistics', 'statistics', 'Output worker statistics', action='store_true')
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apache_busy = None
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apache_idle = None
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apache_scoreboard = None
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apache_states = None
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data = None
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url = None
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plugin.parse_cmdlineoptions()
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def analyze(self):
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try:
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self.apache_idle = int(re.search('Idle(?:Workers|Servers): (\d+)\n', self.data).group(1))
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self.apache_busy = int(re.search('Busy(?:Workers|Servers): (\d+)\n', self.data).group(1))
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except:
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self.back2nagios(2, 'Could not analyze data!')
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if plugin.options.proto not in ['http', 'https']:
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plugin.back2nagios(3, 'Unknown protocol "' + plugin.options.proto + '"')
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self.apache_scoreboard = re.search('Scoreboard: (.*)\n', self.data)
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if self.apache_scoreboard:
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self.apache_states = {'_':0, 'S':0, 'R':0, 'W':0, 'K':0, 'D':0, 'C':0, 'L':0, 'G':0, 'I':0, '.':0,}
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for worker in self.apache_scoreboard.group(1):
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self.apache_states[worker] += 1
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pass
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if not plugin.options.port:
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if plugin.options.proto == 'https':
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plugin.options.port = '443'
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else:
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plugin.options.port = '80'
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url = plugin.options.proto + '://' + plugin.options.host + ':' + plugin.options.port + '/' + plugin.options.url + '?auto'
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plugin.verbose(1, 'Status URL: ' + url)
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def check_worker(self, target='busy', warn='', crit=''):
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pd = {'label':'busy', 'unit':'', 'warn':warn, 'crit': crit, 'min':0}
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if plugin.options.httpauth:
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httpauth = plugin.options.httpauth.split(':')
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if len(httpauth) != 2:
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plugin.back2nagios(3, 'Wrong format of authentication data! Need "USERNAME:PASSWORD", got "' + plugin.options.httpauth + '"')
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passman = urllib.request.HTTPPasswordMgrWithDefaultRealm()
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passman.add_password(None, url, httpauth[0], httpauth[1])
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authhandler = urllib.request.HTTPBasicAuthHandler(passman)
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opener = urllib.request.build_opener(authhandler)
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urllib.request.install_opener(opener)
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if target == 'busy':
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returncode = self.value_wc_to_returncode(self.apache_busy, warn, crit)
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output = '%d busy workers' % self.apache_busy
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pd['value'] = self.apache_busy
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elif target == 'idle':
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returncode = self.value_wc_to_returncode(self.apache_idle, warn, crit)
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output = '%d idle workers' % self.apache_idle
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pd['value'] = self.apache_idle
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pd['label'] = 'idle'
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try:
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data = urllib.request.urlopen(url).read()
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except urllib.error.HTTPError as e:
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plugin.back2nagios(2, 'Could not read data! ' + str(e))
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except urllib.error.URLError as e:
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plugin.back2nagios(2, 'Could not connect to server!')
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return self.remember_check('worker', returncode, output, perfdata=[pd], target=target)
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data = data.decode()
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plugin.verbose(2, 'Got data:')
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plugin.verbose(2, data)
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try:
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idle = int(re.search('Idle(?:Workers|Servers): (\d+)\n', data).group(1))
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busy = int(re.search('Busy(?:Workers|Servers): (\d+)\n', data).group(1))
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except:
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plugin.back2nagios(2, 'Could not analyze data!')
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def get_server_status(self):
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if self.options.httpauth:
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httpauth = self.options.httpauth.split(':')
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if len(httpauth) != 2:
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self.back2nagios(3, 'Wrong format of authentication data! Need "USERNAME:PASSWORD", got "' + self.options.httpauth + '"')
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passman = urllib.request.HTTPPasswordMgrWithDefaultRealm()
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passman.add_password(None, url, httpauth[0], httpauth[1])
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authhandler = urllib.request.HTTPBasicAuthHandler(passman)
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opener = urllib.request.build_opener(authhandler)
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urllib.request.install_opener(opener)
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states = None
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if plugin.options.statistics:
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scoreboard = re.search('Scoreboard: (.*)\n', data)
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if scoreboard:
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states = {'_':0, 'S':0, 'R':0, 'W':0, 'K':0, 'D':0, 'C':0, 'L':0, 'G':0, 'I':0, '.':0,}
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for worker in scoreboard.group(1):
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states[worker] += 1
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plugin.add_multilineoutput(str(states['_']) + ' waiting for connection')
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plugin.add_multilineoutput(str(states['S']) + ' starting up')
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plugin.add_multilineoutput(str(states['R']) + ' reading request')
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plugin.add_multilineoutput(str(states['W']) + ' writing/sending reply')
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plugin.add_multilineoutput(str(states['K']) + ' keepalive')
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plugin.add_multilineoutput(str(states['D']) + ' looking up in DNS')
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plugin.add_multilineoutput(str(states['C']) + ' closing connection')
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plugin.add_multilineoutput(str(states['L']) + ' logging')
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plugin.add_multilineoutput(str(states['G']) + ' gracefully finishing')
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plugin.add_multilineoutput(str(states['I']) + ' idle cleanup of worker')
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plugin.add_multilineoutput(str(states['.']) + ' open slots(up to ServerLimit)')
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try:
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self.data = urllib.request.urlopen(self.url).read().decode()
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except urllib.error.HTTPError as e:
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self.back2nagios(2, 'Could not read data! ' + str(e))
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except urllib.error.URLError as e:
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self.back2nagios(2, 'Could not connect to server!')
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returncode = plugin.value_wc_to_returncode(busy, plugin.options.warn, plugin.options.crit)
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pass
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plugin.add_output(str(busy) + ' busy workers, ' + str(idle) + ' idle')
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plugin.add_returncode(returncode)
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def set_status_url(self):
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if self.options.url:
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self.url = self.options.url
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else:
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if self.options.proto not in ['http', 'https']:
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self.back2nagios(3, 'Unknown protocol "' + self.options.proto + '"')
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plugin.format_add_performancedata('busy', busy, '', warn=plugin.options.warn, crit=plugin.options.crit, min=0.0)
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plugin.format_add_performancedata('idle', idle, '')
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if not self.options.port:
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if self.options.proto == 'https':
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self.options.port = '443'
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else:
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self.options.port = '80'
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plugin.exit()
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self.url = self.options.proto + '://' + self.options.host + ':' + self.options.port + '/' + self.options.uri + '?auto'
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pass
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############################################################
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def main():
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plugin = CheckApaches(
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pluginname='check_apaches',
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tagforstatusline='APACHE',
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description='Check Apache workers',
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version='0.1',
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)
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plugin.add_cmdlineoption('-H', '', 'host', 'Hostname/IP to check', default='localhost')
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plugin.add_cmdlineoption('-p', '', 'port', 'port to connect', default=None)
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plugin.add_cmdlineoption('-P', '', 'proto', 'protocol to use', default='http')
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plugin.add_cmdlineoption('-u', '', 'uri', 'path to "server-status"', default='/server-status')
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plugin.add_cmdlineoption('-U', '', 'url', 'complete URL to "server-status", overrides other options', default=None)
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plugin.add_cmdlineoption('-a', '', 'httpauth', 'HTTP Username and Password, separated by ":"')
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plugin.add_cmdlineoption('-w', '', 'warn', 'OBSOLETE: warning thresold', default='')
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plugin.add_cmdlineoption('-c', '', 'crit', 'OBSOLETE: warning thresold', default='')
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plugin.add_cmdlineoption('', '--statistics', 'statistics', 'Output worker statistics', action='store_true')
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plugin.parse_cmdlineoptions()
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plugin.set_status_url()
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plugin.verbose(1, 'Status URL: ' + plugin.url)
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plugin.get_server_status()
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plugin.verbose(2, 'Got data:')
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plugin.verbose(2, plugin.data)
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plugin.analyze()
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checks = plugin.args2checks()
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# backward compatibility
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if len(checks) == 0:
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checks = [
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('worker','busy','20','50'),
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('worker','idle','20:','5:'),
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]
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for quad in checks:
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(check, target, warn, crit) = tuple(quad)
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if check == 'worker':
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result = plugin.check_worker(target, warn, crit)
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else:
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result = plugin.remember_check(check, plugin.RETURNCODE['UNKNOWN'], 'Unknown check "' + check + '"!')
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plugin.verbose(5, result)
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if plugin.options.statistics:
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plugin.add_multilineoutput(str(plugin.apache_states['_']) + ' waiting for connection')
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plugin.add_multilineoutput(str(plugin.apache_states['S']) + ' starting up')
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plugin.add_multilineoutput(str(plugin.apache_states['R']) + ' reading request')
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plugin.add_multilineoutput(str(plugin.apache_states['W']) + ' writing/sending reply')
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plugin.add_multilineoutput(str(plugin.apache_states['K']) + ' keepalive')
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plugin.add_multilineoutput(str(plugin.apache_states['D']) + ' looking up in DNS')
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plugin.add_multilineoutput(str(plugin.apache_states['C']) + ' closing connection')
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plugin.add_multilineoutput(str(plugin.apache_states['L']) + ' logging')
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plugin.add_multilineoutput(str(plugin.apache_states['G']) + ' gracefully finishing')
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plugin.add_multilineoutput(str(plugin.apache_states['I']) + ' idle cleanup of worker')
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plugin.add_multilineoutput(str(plugin.apache_states['.']) + ' open slots(up to ServerLimit)')
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plugin.brain2output()
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plugin.exit()
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if __name__ == '__main__':
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main()
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#vim: ts=4 sts=4 sw=4
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