nova/bin/nova-instancemonitor
2011-03-18 09:56:05 -04:00

60 lines
2.0 KiB
Python
Executable File

#!/usr/bin/env python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2010 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# All Rights Reserved.
#
# 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.
"""
Daemon for Nova RRD based instance resource monitoring.
"""
import gettext
import os
import sys
from twisted.application import service
# If ../nova/__init__.py exists, add ../ to Python search path, so that
# it will override what happens to be installed in /usr/(local/)lib/python...
possible_topdir = os.path.normpath(os.path.join(os.path.abspath(sys.argv[0]),
os.pardir,
os.pardir))
if os.path.exists(os.path.join(possible_topdir, 'nova', '__init__.py')):
sys.path.insert(0, possible_topdir)
gettext.install('nova', unicode=1)
from nova import log as logging
from nova import utils
from nova import twistd
from nova.compute import monitor
LOG = logging.getLogger('nova.instancemonitor')
if __name__ == '__main__':
utils.default_flagfile()
twistd.serve(__file__)
if __name__ == '__builtin__':
LOG.warn(_('Starting instance monitor'))
# pylint: disable=C0103
monitor = monitor.InstanceMonitor()
# This is the parent service that twistd will be looking for when it
# parses this file, return it so that we can get it into globals below
application = service.Application('nova-instancemonitor')
monitor.setServiceParent(application)