heat/bin/heat-metadata
Steven Dake e9eee939c7 Import openstack.common.rpc
Use openstack.common routines.  One of the parameters changed to
create_consumer().

Thanks to Russell Bryant for assistance with sorting out that problem.

Change-Id: I4badc7ca22298cd0aafc57a2335b3d6801289be8
Signed-off-by: Steven Dake <sdake@redhat.com>
2012-07-17 08:27:19 -07:00

82 lines
2.6 KiB
Python
Executable File

#!/usr/bin/env python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
#
# 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.
"""
Heat Metadata Server.
This makes the instance metadata accessible both to the instance and Heat Engine.
"""
import gettext
import os
import sys
# If ../heat/__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, 'heat', '__init__.py')):
sys.path.insert(0, possible_topdir)
gettext.install('heat', unicode=1)
from heat.openstack.common import rpc
from heat.common import config
from heat.common import wsgi
from heat.common import context
from paste import httpserver
from heat.openstack.common import log as logging
from heat.openstack.common import cfg
LOG = logging.getLogger('heat.metadata')
def send_address_to_engine(host, port):
con = context.get_admin_context()
timeout = 2
while True:
try:
resp = rpc.call(con, 'engine',
{'method': 'metadata_register_address',
'args': {'url': 'http://%s:%s' % (host, port)}},
timeout=timeout)
except rpc.common.Timeout:
LOG.info('Could not connect to the engine, retrying...')
if timeout < 30:
timeout *= 2
else:
LOG.info('registered the hostname and port with the engine.')
return
if __name__ == '__main__':
try:
cfg.CONF(project='heat', prog='heat-metadata')
config.setup_logging()
config.register_metadata_opts()
app = config.load_paste_app()
port = cfg.CONF.bind_port
host = cfg.CONF.bind_host
send_address_to_engine(host, port)
LOG.info(('Starting Heat Metadata on %s:%s') % (host, port))
httpserver.serve(app, host=host, port=port)
except RuntimeError, e:
sys.exit("ERROR: %s" % e)