osops-tools-monitoring/monitoring-for-openstack/oschecks/pacemaker_host_check.py

78 lines
2.7 KiB
Python
Executable File

#!/usr/bin/env python
# -*- encoding: utf-8 -*-
# Openstack Monitoring script for Sensu / Nagios
#
# Copyright © 2013-2014 eNovance <licensing@enovance.com>
#
# Author:Mehdi Abaakouk <mehdi.abaakouk@enovance.com>
#
# 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.
import argparse
import os
import shlex
import subprocess
try:
import utils
except ImportError:
from oschecks import utils
def _pacemaker_host_check():
parser = argparse.ArgumentParser(
description='Check amqp connection of an OpenStack service.')
parser.add_argument('-r', dest='pacemaker_resource',
help='pacemaker resource', required=True)
parser.add_argument('-s', dest='script', required=True,
help='Script')
options = parser.parse_args()
local_hostname = subprocess.check_output(['hostname', '-s']).strip()
try:
output = subprocess.check_output(['pcs', 'status'])
except subprocess.CalledProcessError as e:
utils.critical('pcs status with status %s: %s' %
e.returncode, e.output)
except OSError:
utils.critical('pcs not found')
for line in output.splitlines():
line = " ".join(line.strip().split()) # Sanitize separator
if not line:
continue
resource, remaining = line.split(None, 1)
if resource == options.pacemaker_resource:
agent, __, remaining = remaining.partition(' ')
if ' ' in remaining:
status, __, current_hostname = remaining.partition(' ')
else:
status, current_hostname = remaining, ''
if status != "Started":
utils.critical("pacemaker resource %s is not started (%s)" %
(resource, status))
if current_hostname != local_hostname:
utils.ok("pacemaker resource %s doesn't on this node "
"(but on %s)" % (resource, current_hostname))
script = shlex.split(options.script)
os.execvp(script[0], script)
else:
utils.critical('pacemaker resource %s not found' %
options.pacemaker_resource)
def pacemaker_host_check():
utils.safe_run(_pacemaker_host_check)