barbican/bin/barbican-worker.py
jfwood faffd3512d Replace Celery with Oslo messaging for asynchronous queuing.
Barbican is using Celery to interface to the HA queues it uses to send
asynchronous requests from API nodes to the worker nodes. This change
request replaces Celery with OpenStack-friendly oslo.messaging RPC
components.

Change-Id: Ibc257e98726938a577da4300b389fa13ff34d8a0
Implements: blueprint queue-use-oslo-messaging
2013-12-16 13:54:40 -06:00

75 lines
2.0 KiB
Python
Executable File

#!/usr/bin/env python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright (c) 2013 Rackspace, Inc.
#
# 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.
"""
Barbican worker server.
"""
import eventlet
import gettext
import os
import sys
# Oslo messaging RPC server uses eventlet.
eventlet.monkey_patch()
# 'Borrowed' from the Glance project:
# If ../barbican/__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, 'barbican', '__init__.py')):
sys.path.insert(0, possible_topdir)
gettext.install('barbican', unicode=1)
from barbican.common import config
from barbican.openstack.common import log
from barbican.openstack.common import service
from barbican import queue
from barbican.queue import server
from oslo.config import cfg
def fail(returncode, e):
sys.stderr.write("ERROR: {0}\n".format(e))
sys.exit(returncode)
if __name__ == '__main__':
try:
config.parse_args()
# Import and configure logging.
log.setup('barbican')
LOG = log.getLogger(__name__)
LOG.debug("Booting up Barbican worker node...")
# Queuing initialization
CONF = cfg.CONF
queue.init(CONF)
service.launch(
server.TaskServer()
).wait()
except RuntimeError as e:
fail(1, e)