110 lines
3.8 KiB
Python
110 lines
3.8 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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from __future__ import print_function
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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 subprocess
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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_cell_v2_discover_host')
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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 then
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# run cellv2 host discovery
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retries = 10
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for i in range(retries):
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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('(cellv2) Service registered, running discovery')
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sys.exit(subprocess.call([
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'/usr/bin/nova-manage',
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'cell_v2',
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'discover_hosts',
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'--by-service',
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'--verbose'
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]))
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if len(service_list) == 0:
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LOG.warning('(cellv2) no nova-compute service registered' +
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' after %i checks', i)
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LOG.info('(cellv2) Waiting for service to register')
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except subprocess.CalledProcessError:
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LOG.info('(cellv2) Retrying')
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except Exception as e:
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LOG.exception('Error during host discovery:')
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time.sleep(30)
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sys.exit(1)
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# vim: set et ts=4 sw=4 :
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