Icinga/Nagios plugin to check status of a Livestatus socket
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#!/usr/bin/python2.7
"""
Icinga/Nagios plugin to check status of a Livestatus socket
"""
import argparse
import json
import logging
import os
import socket
import sys
import traceback
DEFAULT_HOST = '127.0.0.1'
DEFAULT_PORT = 6557
DEFAULT_TIMEOUT = 2
### MAIN ####
parser = argparse.ArgumentParser(description=__doc__)
parser.add_argument(
'-d', '--debug',
action='store_true',
help='Show debug messages'
)
parser.add_argument(
'-v', '--verbose',
action='store_true',
help='Show verbose messages'
)
parser.add_argument(
'-l',
'--log-file',
action="store",
type=str,
dest="logfile",
help="Log file path"
)
parser.add_argument(
'-C', '--console',
action='store_true',
help='Also log on console (even if log file is provided)'
)
parser.add_argument(
'-U', '--unix-socket-path',
action='store',
type=str,
dest='unix_socket_path',
help='Livestatus UNIX socket path',
)
parser.add_argument(
'-H', '--host',
action='store',
type=str,
dest='host',
help='Livestatus host (default: %s)' % DEFAULT_HOST,
default=DEFAULT_HOST
)
parser.add_argument(
'-p', '--port',
action='store',
type=int,
dest='port',
help='Livestatus port (default: %d)' % DEFAULT_PORT,
default=DEFAULT_PORT
)
parser.add_argument(
'-t', '--timeout',
action='store',
type=float,
dest='timeout',
help='Livestatus timeout in second (default: %s)' % DEFAULT_TIMEOUT,
default=DEFAULT_TIMEOUT
)
options = parser.parse_args()
# Initialize log
log = logging.getLogger()
logformat = logging.Formatter("%(asctime)s - " + os.path.basename(sys.argv[0]) + " - %(levelname)s - %(message)s")
if options.debug:
log.setLevel(logging.DEBUG)
elif options.verbose:
log.setLevel(logging.INFO)
else:
log.setLevel(logging.WARNING)
if options.logfile:
logfile = logging.FileHandler(options.logfile)
logfile.setFormatter(logformat)
log.addHandler(logfile)
if not options.logfile or options.console:
logconsole = logging.StreamHandler()
logconsole.setFormatter(logformat)
log.addHandler(logconsole)
try:
if options.unix_socket_path:
peer = options.unix_socket_path
livestatus = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
livestatus.connect(options.unix_socket_path)
elif options.host and options.port:
peer = "%s:%d" % (options.host, options.port)
livestatus = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
livestatus.connect((options.host, options.port))
else:
parser.error('You must provide Livestatus UNIX socket path or host & port')
sys.exit(3)
livestatus.settimeout(options.timeout)
livestatus.send("GET status\nOutputFormat: json\nColumnHeaders: on\n\n")
livestatus.shutdown(socket.SHUT_WR)
rawdata = livestatus.makefile().read()
status = None
if rawdata:
data = json.loads(rawdata)
assert isinstance(data, list) and len(data) == 2, "Invalid Livestatus return:\n%s" % data
status = dict(
(data[0][idx], value)
for idx, value in enumerate(data[1])
)
except Exception:
print(
'UNKNOWN - Fail to retreive status from Livestatus from %s\n\nException:\n%s' %
(peer, traceback.format_exc())
)
sys.exit(2)
if isinstance(status, dict) and 'num_hosts' in status:
print('OK - %s host(s) found\n' % status['num_hosts'])
for key in sorted(status.keys()):
print('%s: %s' % (key, status[key]))
sys.exit(0)
print('UNKNOWN - Invalid Livestatus return\n\n%s' % data)
sys.exit(3)