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check_ceph_osd
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check_ceph_osd
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
#
# Copyright (c) 2013 Catalyst IT http://www.catalyst.net.nz
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# 1.5.2 (2019-06-16) Martin Seener: fixed regex to work with Ceph Nautilus (14.2.x)
from __future__ import print_function
import argparse
import os
import re
import subprocess
import sys
import socket
__version__ = '1.5.2'
# default ceph values
CEPH_COMMAND = '/usr/bin/ceph'
# nagios exit code
STATUS_OK = 0
STATUS_WARNING = 1
STATUS_ERROR = 2
STATUS_UNKNOWN = 3
def main():
# parse args
parser = argparse.ArgumentParser(description="'ceph osd' nagios plugin.")
parser.add_argument('-e','--exe', help='ceph executable [%s]' % CEPH_COMMAND)
parser.add_argument('-c','--conf', help='alternative ceph conf file')
parser.add_argument('-m','--monaddress', help='ceph monitor address[:port]')
parser.add_argument('-i','--id', help='ceph client id')
parser.add_argument('-k','--keyring', help='ceph client keyring file')
parser.add_argument('-V','--version', help='show version and exit', action='store_true')
parser.add_argument('-H','--host', help='osd host', required=True)
parser.add_argument('-I','--osdid', help='osd id', required=False)
parser.add_argument('-C','--crit', help='Number of failed OSDs to trigger critical (default=2)',type=int,default=2, required=False)
parser.add_argument('-o','--out', help='check osds that are set OUT', default=False, action='store_true', required=False)
args = parser.parse_args()
# validate args
ceph_exec = args.exe if args.exe else CEPH_COMMAND
if not os.path.exists(ceph_exec):
print("OSD ERROR: ceph executable '%s' doesn't exist" % ceph_exec)
return STATUS_UNKNOWN
if args.version:
print('version %s' % __version__)
return STATUS_OK
if args.conf and not os.path.exists(args.conf):
print("OSD ERROR: ceph conf file '%s' doesn't exist" % args.conf)
return STATUS_UNKNOWN
if args.keyring and not os.path.exists(args.keyring):
print("OSD ERROR: keyring file '%s' doesn't exist" % args.keyring)
return STATUS_UNKNOWN
if not args.osdid:
args.osdid = '[^ ]*'
if not args.host:
print("OSD ERROR: no OSD hostname given")
return STATUS_UNKNOWN
try:
addrinfo = socket.getaddrinfo(args.host, None, 0, socket.SOCK_STREAM)
args.host = addrinfo[0][-1][0]
if addrinfo[0][0] == socket.AF_INET6:
args.host = "[%s]" % args.host
except:
print('OSD ERROR: could not resolve %s' % args.host)
return STATUS_UNKNOWN
# build command
ceph_cmd = [ceph_exec]
if args.monaddress:
ceph_cmd.append('-m')
ceph_cmd.append(args.monaddress)
if args.conf:
ceph_cmd.append('-c')
ceph_cmd.append(args.conf)
if args.id:
ceph_cmd.append('--id')
ceph_cmd.append(args.id)
if args.keyring:
ceph_cmd.append('--keyring')
ceph_cmd.append(args.keyring)
ceph_cmd.append('osd')
ceph_cmd.append('dump')
# exec command
p = subprocess.Popen(ceph_cmd,stdout=subprocess.PIPE,stderr=subprocess.PIPE)
output, err = p.communicate()
output = output.decode('utf8')
if err or not output:
print("OSD ERROR: %s" % err)
return STATUS_ERROR
# escape IPv4 host address
osd_host = args.host.replace('.', '\.')
# escape IPv6 host address
osd_host = osd_host.replace('[', '\[')
osd_host = osd_host.replace(']', '\]')
up = re.findall(r"^(osd\.%s) up.*%s:" % (args.osdid, osd_host), output, re.MULTILINE)
if args.out:
down = re.findall(r"^(osd\.%s) down.*%s:" % (args.osdid, osd_host), output, re.MULTILINE)
down_in = re.findall(r"^(osd\.%s) down[ ]+in.*%s:" % (args.osdid, osd_host), output, re.MULTILINE)
down_out = re.findall(r"^(osd\.%s) down[ ]+out.*%s:" % (args.osdid, osd_host), output, re.MULTILINE)
else:
down = re.findall(r"^(osd\.%s) down[ ]+in.*%s:" % (args.osdid, osd_host), output, re.MULTILINE)
down_in = down
down_out = re.findall(r"^(osd\.%s) down[ ]+out.*%s:" % (args.osdid, osd_host), output, re.MULTILINE)
if down:
print("OSD %s: Down OSD%s on %s: %s" % ('CRITICAL' if len(down)>=args.crit else 'WARNING' ,'s' if len(down)>1 else '', args.host, " ".join(down)))
print("Up OSDs: " + " ".join(up))
print("Down+In OSDs: " + " ".join(down_in))
print("Down+Out OSDs: " + " ".join(down_out))
print("| 'osd_up'=%d 'osd_down_in'=%d;;%d 'osd_down_out'=%d;;%d" % (len(up), len(down_in), args.crit, len(down_out), args.crit))
if len(down)>=args.crit:
return STATUS_ERROR
else:
return STATUS_WARNING
if up:
print("OSD OK")
print("Up OSDs: " + " ".join(up))
print("Down+In OSDs: " + " ".join(down_in))
print("Down+Out OSDs: " + " ".join(down_out))
print("| 'osd_up'=%d 'osd_down_in'=%d;;%d 'osd_down_out'=%d;;%d" % (len(up), len(down_in), args.crit, len(down_out), args.crit))
return STATUS_OK
print("OSD ERROR: no OSD.%s found on host %s" % (args.osdid, args.host))
return STATUS_ERROR
if __name__ == "__main__":
sys.exit(main())