#!/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 logging

from nova import vendor
from twisted.internet import task
from twisted.application import service

from nova import twistd
from nova.compute import monitor

logging.getLogger('boto').setLevel(logging.WARN)

def main():
    logging.warn('Starting instance monitor')
    m = 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')
    m.setServiceParent(application)
    return application

if __name__ == '__main__':
    twistd.serve(__file__)

if __name__ == '__builtin__':
    application = main()