Initial commit
This commit is contained in:
Benjamin Renard
commit
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*~
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Nagios plugin to check Ceph cluster usage
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=========================================
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Usage
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-----
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Usage: check_ceph_usage [options]
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Options:
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-h, --help show this help message and exit
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-d, --debug
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-b BIN, --bin=BIN Ceph binary (default : /usr/bin/ceph)
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--conf=CONF Ceph configuration file
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-m MON, --mon=MON Ceph monitor address[:port]
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-i ID, --id=ID Ceph client id
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-k KEYRING, --keyring=KEYRING
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Ceph client keyring file
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-w WARNDATA, --warning-data=WARNDATA
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Warning data threshold (default : 70%)
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-c CRITDATA, --critical-data=CRITDATA
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Critical data threshold (default : 85%)
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-W WARNALLOC, --warning-allocated=WARNALLOC
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Warning allocated threshold (default : 80%)
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-C CRITALLOC, --critical-allocated=CRITALLOC
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Critical allocated threshold (default : 90%)
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Copyright
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---------
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Copyright (c) 2013 Benjamin Renard <brenard@zionetrix.net>
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License
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-------
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License version 2
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as published by the Free Software Foundation.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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#!/usr/bin/python
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#
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# Nagios plugin to check Ceph cluster usage
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#
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# Usage: check_ceph_usage [options]
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#
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# Options:
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# -h, --help show this help message and exit
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# -d, --debug
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# -b BIN, --bin=BIN Ceph binary (default : /usr/bin/ceph)
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# --conf=CONF Ceph configuration file
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# -m MON, --mon=MON Ceph monitor address[:port]
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# -i ID, --id=ID Ceph client id
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# -k KEYRING, --keyring=KEYRING
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# Ceph client keyring file
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# -w WARNDATA, --warning-data=WARNDATA
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# Warning data threshold (default : 70%)
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# -c CRITDATA, --critical-data=CRITDATA
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# Critical data threshold (default : 85%)
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# -W WARNALLOC, --warning-allocated=WARNALLOC
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# Warning allocated threshold (default : 80%)
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# -C CRITALLOC, --critical-allocated=CRITALLOC
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# Critical allocated threshold (default : 90%)
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#
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# Copyright (c) 2013 Benjamin Renard <brenard@zionetrix.net>
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License version 2
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# as published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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#
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import sys,os,json,subprocess
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from optparse import OptionParser
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# default ceph values
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CEPH_COMMAND = '/usr/bin/ceph'
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WARN_DATA = 70
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CRIT_DATA = 85
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WARN_ALLOC = 80
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CRIT_ALLOC = 90
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# nagios exit code
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STATUS_OK = 0
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STATUS_WARNING = 1
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STATUS_ERROR = 2
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STATUS_UNKNOWN = 3
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parser = OptionParser()
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parser.add_option('-d',
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'--debug',
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action="store_true",
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dest="debug",
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default=False)
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parser.add_option('-b',
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'--bin',
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action="store",
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dest="bin",
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help="Ceph binary (default : %s)" % CEPH_COMMAND,
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type='string',
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default=CEPH_COMMAND)
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parser.add_option('--conf',
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action="store",
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dest="conf",
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help="Ceph configuration file",
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type='string',
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default=None)
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parser.add_option('-m',
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'--mon',
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action="store",
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dest="mon",
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help="Ceph monitor address[:port]",
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type='string',
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default=None)
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parser.add_option('-i',
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'--id',
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action="store",
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dest="id",
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help="Ceph client id",
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type='string',
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default=None)
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parser.add_option('-k',
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'--keyring',
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action="store",
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dest="keyring",
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help="Ceph client keyring file",
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type='string',
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default=None)
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parser.add_option('-w',
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'--warning-data',
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action="store",
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dest="warndata",
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help="Warning data threshold (default : %s%%)" % WARN_DATA,
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type='int',
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default=WARN_DATA)
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parser.add_option('-c',
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'--critical-data',
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action="store",
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dest="critdata",
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help="Critical data threshold (default : %s%%)" % CRIT_DATA,
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type='int',
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default=CRIT_DATA)
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parser.add_option('-W',
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'--warning-allocated',
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action="store",
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dest="warnalloc",
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help="Warning allocated threshold (default : %s%%)" % WARN_ALLOC,
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type='int',
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default=WARN_ALLOC)
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parser.add_option('-C',
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'--critical-allocated',
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action="store",
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dest="critalloc",
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help="Critical allocated threshold (default : %s%%)" % CRIT_ALLOC,
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type='int',
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default=CRIT_ALLOC)
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(options, args) = parser.parse_args()
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# validate args
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if not os.path.exists(options.bin):
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print "ERROR: ceph executable '%s' doesn't exist" % options.bin
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sys.exit(STATUS_UNKNOWN)
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if options.conf and not os.path.exists(options.conf):
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print "ERROR: ceph conf file '%s' doesn't exist" % options.conf
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sys.exit(STATUS_UNKNOWN)
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if options.keyring and not os.path.exists(options.keyring):
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print "ERROR: keyring file '%s' doesn't exist" % options.keyring
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sys.exit(STATUS_UNKNOWN)
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# build command
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ceph_cmd = [options.bin]
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if options.mon:
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ceph_cmd.append('-m')
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ceph_cmd.append(options.mon)
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if options.conf:
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ceph_cmd.append('-c')
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ceph_cmd.append(options.conf)
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if options.id:
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ceph_cmd.append('--id')
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ceph_cmd.append(options.id)
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if options.keyring:
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ceph_cmd.append('--keyring')
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ceph_cmd.append(options.keyring)
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ceph_cmd.append('status')
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ceph_cmd.append('--format=json')
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# exec command
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p = subprocess.Popen(ceph_cmd,stdout=subprocess.PIPE,stderr=subprocess.PIPE)
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output, err = p.communicate()
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if output:
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data=json.loads(output)
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if 'pgmap' not in data:
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print "UNKNOWN : fail to read pgmap status"
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sys.exit(STATUS_UNKNOWN)
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if options.debug:
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print "data : %s" % data['pgmap']['data_bytes']
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print "allocated : %s" % data['pgmap']['bytes_used']
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print "total : %s" % data['pgmap']['bytes_total']
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PER_DATA=round(int(data['pgmap']['data_bytes'])*100/int(data['pgmap']['bytes_total']),1)
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DATA_WARN_T=int(int(data['pgmap']['bytes_total'])*options.warndata/100)
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DATA_CRIT_T=int(int(data['pgmap']['bytes_total'])*options.critdata/100)
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PER_ALLOC=round(int(data['pgmap']['bytes_used'])*100/int(data['pgmap']['bytes_total']),1)
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ALLOC_WARN_T=int(int(data['pgmap']['bytes_total'])*options.warnalloc/100)
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ALLOC_CRIT_T=int(int(data['pgmap']['bytes_total'])*options.critalloc/100)
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if options.debug:
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print "%% data : %s" % PER_DATA
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print "%% allocated : %s" % PER_ALLOC
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STATUS=STATUS_OK
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STATUS_TXT="OK"
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if PER_DATA > options.critdata or PER_ALLOC > options.critalloc:
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STATUS=STATUS_CRITICAL
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STATUS_TXT="CRITICAL"
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elif PER_DATA > options.warndata or PER_ALLOC > options.warnalloc:
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STATUS=STATUS_WARNING
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STATUS_TXT="WARNING"
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print "%s : %s%% allocated / %s%% really used|allocated=%sB;%s;%s;0;%s,used=%sB;%s;%s;0;%s" % (STATUS_TXT,PER_ALLOC,PER_DATA,data['pgmap']['bytes_used'],ALLOC_WARN_T,ALLOC_CRIT_T,data['pgmap']['bytes_total'],data['pgmap']['data_bytes'],DATA_WARN_T,DATA_CRIT_T,data['pgmap']['bytes_total'])
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sys.exit(STATUS)
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else:
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print "UNKNOWN : fail to execute ceph status command"
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sys.exit(STATUS_UNKNOWN)
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