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#!/usr/bin/env python
#Copyright (C) 2009-2011 :
# Denis GERMAIN, dt.germain@gmail.com
# Gabes Jean, naparuba@gmail.com
# Gerhard Lausser, Gerhard.Lausser@consol.de
# Gregory Starck, g.starck@gmail.com
# Hartmut Goebel, h.goebel@goebel-consult.de
#
#This file is part of Shinken.
#
#Shinken is free software: you can redistribute it and/or modify
#it under the terms of the GNU Affero General Public License as published by
#the Free Software Foundation, either version 3 of the License, or
#(at your option) any later version.
#
#Shinken 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 Affero General Public License for more details.
#
#You should have received a copy of the GNU Affero General Public License
#along with Shinken. If not, see <http://www.gnu.org/licenses/>.
################################################
# check_shinken.py :
# This check is getting daemons state from
# a arbiter connection.
################################################
import os
# Exit statuses recognized by Nagios and thus by Shinken
OK = 0
WARNING = 1
CRITICAL = 2
UNKNOWN = 3
#Name of the Pyro Object we are searching
PYRO_OBJECT = 'ForArbiter'
daemon_types = ['arbiter', 'broker', 'scheduler', 'poller', 'reactionner']
try:
import shinken
except ImportError:
# If importing shinken fails, try to load from current directory
# or parent directory to support running without installation.
# Submodules will then be loaded from there, too.
import imp
if not hasattr(os, "getuid") or os.getuid() != 0:
imp.load_module('shinken', *imp.find_module('shinken', [".", ".."]))
from optparse import OptionParser
try:
import shinken.pyro_wrapper as pyro
from shinken.pyro_wrapper import Pyro
except ImportError, exp:
print 'CRITICAL : check_shinken requires the Python Pyro and the shinken.pyro_wrapper module. Please install it. (%s)' % exp
raise SystemExit, CRITICAL
def check_deamons_numbers(result, target):
total_number = len(result)
alive_number = len([e for e in result.values() if e['alive']])
total_spare_number = len([e for e in result.values() if e['spare']])
alive_spare_number = len([e for e in result.values() if e['spare'] and e['alive']])
dead_number = total_number - alive_number
dead_list = ','.join([n for n in result if not result[n]['alive']])
#TODO : perfdata to graph deamons would be nice (in big HA architectures)
#if alive_number <= critical, then we have a big problem
if alive_number <= options.critical:
print "CRITICAL - only %d/%d %s(s) UP. Down elements : %s" % (alive_number, total_number, target, dead_list)
raise SystemExit, CRITICAL
#We are not in a case where there is no more daemons, but are there daemons down?
elif dead_number >= options.warning:
print "WARNING - %d/%d %s(s) DOWN :%s" % (dead_number, total_number, target, dead_list)
raise SystemExit, WARNING
#Everything seems fine. But that's no surprise, is it?
else :
print "OK - %d/%d %s(s) UP, with %d/%d spare(s) UP" % (alive_number, total_number, target, alive_spare_number, total_spare_number)
raise SystemExit, OK
# Adding options. None are required, check_shinken will use shinken defaults
#TODO : Add more control in args problem and usage than the default OptionParser one
parser = OptionParser()
parser.add_option('-a', '--hostname', dest='hostname', default='127.0.0.1')
parser.add_option('-p', '--portnumber', dest='portnum', default=7770)
parser.add_option('-s', '--ssl', dest='ssl', default=False)
#TODO : Add a list of correct values for target and don't authorize anything else
parser.add_option('-t', '--target', dest='target')
parser.add_option('-d', '--daemonname', dest='daemon', default='')
#In HA architectures, a warning should be displayed if there's one daemon down
parser.add_option('-w','--warning', dest='warning', default = 1)
#If no deamon is left, display a critical (but shinken will be probably dead already)
parser.add_option('-c', '--critical', dest='critical', default = 0)
#Retrieving options
options, args = parser.parse_args()
#TODO : for now, helpme doesn't work as desired
options.helpme = False
# Check for required option target
if not getattr(options, 'target'):
print 'CRITICAL - target is not specified; You must specify which daemons you want to check!'
parser.print_help()
raise SystemExit, CRITICAL
elif options.target not in daemon_types:
print 'CRITICAL - target %s is not a Shinken daemon!' % options.target
parser.print_help()
raise SystemExit, CRITICAL
uri = pyro.create_uri(options.hostname, options.portnum, PYRO_OBJECT , options.ssl)
if options.daemon:
# We just want a check for a single satellite daemon
# Only OK or CRITICAL here
daemon_name = options.daemon
try:
result = Pyro.core.getProxyForURI(uri).get_satellite_status(options.target, daemon_name)
except Pyro.errors.ProtocolError, exp:
print "CRITICAL : the Arbiter is not reachable : (%s)." % exp
raise SystemExit, CRITICAL
if result:
if result['alive']:
print 'OK - %s alive' % daemon_name
raise SystemExit, OK
else:
print 'CRITICAL - %s down' % daemon_name
raise SystemExit, CRITICAL
else:
print 'UNKNOWN - %s status could not be retrieved' % daemon_name
raise SystemExit, UNKNOWN
else:
# If no daemonname is specified, we want a general overview of the "target" daemons
result = {}
try:
daemon_list = Pyro.core.getProxyForURI(uri).get_satellite_list(options.target)
except Pyro.errors.ProtocolError, exp:
print "CRITICAL : the Arbiter is not reachable : (%s)." % exp
raise SystemExit, CRITICAL
for daemon_name in daemon_list:
# Getting individual daemon and putting status info in the result dictionnary
try:
result[daemon_name] = Pyro.core.getProxyForURI(uri).get_satellite_status(options.target, daemon_name)
except Pyro.errors.ProtocolError, exp:
print "CRITICAL : the Arbiter is not reachable : (%s)." % exp
raise SystemExit, CRITICAL
# Now we have all data
if result:
check_deamons_numbers(result, options.target)
else :
print 'UNKNOWN - Arbiter could not retrieve status for %s' % options.target
raise SystemExit, UNKNOWN
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