908e6b9810
The nova_cell_v2_discover_hosts.py was moved to run on compute nodes instead of controllers to allow adding computes without touching controllers and in case multiple stacks are used to manage compute nodes. In case the nova-manage command, run by nova_cell_v2_discover_hosts.py, gets triggered at the same time on compute nodes races. With this change if this is _not_ an additional cell: * in docker_config step4, on every compute, we start the nova-compute container and then start a (detach=false) container to wait for it's service to appear in the service list. * in docker_config step5, on the bootstrap node only, we run the discovery. Change-Id: I1a159a7c2ac286373df2b7c566426b37b7734961 Closes-bug: 1824445 Co-authored-by: mschuppert@redhat.com
97 lines
3.3 KiB
Python
97 lines
3.3 KiB
Python
#!/usr/bin/env python
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#
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# Copyright 2018 Red Hat Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import logging
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from optparse import OptionParser
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import os
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import socket
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import sys
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import time
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from keystoneauth1 import loading
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from keystoneauth1 import session
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from novaclient import client
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from six.moves.configparser import SafeConfigParser
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logging.basicConfig(stream=sys.stdout, level=logging.DEBUG)
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LOG = logging.getLogger('nova_wait_for_compute_service')
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iterations = 60
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timeout = 10
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nova_cfg = '/etc/nova/nova.conf'
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if __name__ == '__main__':
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parser = OptionParser(usage="usage: %prog [options]")
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parser.add_option('-k', '--insecure',
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action="store_false",
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dest='insecure',
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default=True,
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help='Allow insecure connection when using SSL')
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(options, args) = parser.parse_args()
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LOG.debug('Running with parameter insecure = %s',
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options.insecure)
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if os.path.isfile(nova_cfg):
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config = SafeConfigParser()
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config.read(nova_cfg)
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else:
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LOG.error('Nova configuration file %s does not exist', nova_cfg)
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sys.exit(1)
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my_host = config.get('DEFAULT', 'host')
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if not my_host:
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# If host isn't set nova defaults to this
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my_host = socket.gethostname()
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loader = loading.get_plugin_loader('password')
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auth = loader.load_from_options(
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auth_url=config.get('neutron',
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'auth_url'),
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username=config.get('neutron',
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'username'),
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password=config.get('neutron',
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'password'),
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project_name=config.get('neutron',
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'project_name'),
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project_domain_name=config.get('neutron',
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'project_domain_name'),
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user_domain_name=config.get('neutron',
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'user_domain_name'))
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sess = session.Session(auth=auth, verify=options.insecure)
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nova = client.Client('2.11', session=sess, endpoint_type='internal')
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# Wait until this host is listed in the service list
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for i in range(iterations):
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try:
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service_list = nova.services.list(binary='nova-compute')
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for entry in service_list:
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host = getattr(entry, 'host', '')
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zone = getattr(entry, 'zone', '')
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if host == my_host and zone != 'internal':
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LOG.info('Nova-compute service registered')
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sys.exit(0)
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LOG.info('Waiting for nova-compute service to register')
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except Exception as e:
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LOG.exception(
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'Error while waiting for nova-compute service to register')
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time.sleep(timeout)
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sys.exit(1)
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# vim: set et ts=4 sw=4 :
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