tripleo-heat-templates/container_config_scripts/nova_wait_for_compute_service.py
Sandeep Yadav 08ca0a97d4 Change optparse to argparse
The optparse module has been deprecated since python version2.7[1].
This change switches remaining modules that was using optparse to the
newer argparse usage.

[1] https://docs.python.org/2/library/optparse.html

Change-Id: Iea9ef9dd4ac224a1f9fa5eaca0aa0959c802bcdd
2020-01-21 04:17:09 +00:00

118 lines
4.0 KiB
Python

#!/usr/bin/env python
#
# Copyright 2018 Red Hat 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.
import argparse
import logging
import os
import six
import socket
import sys
import time
from keystoneauth1 import loading
from keystoneauth1 import session
from novaclient import client
# In python3 SafeConfigParser was renamed to ConfigParser and the default
# for duplicate options default to true. In case of nova it is valid to
# have duplicate option lines, e.g. passthrough_whitelist which leads to
# issues reading the nova.conf
# https://bugs.launchpad.net/tripleo/+bug/1827775
if six.PY3:
from six.moves.configparser import ConfigParser
config = ConfigParser(strict=False)
else:
from six.moves.configparser import SafeConfigParser
config = SafeConfigParser()
debug = os.getenv('__OS_DEBUG', 'false')
if debug.lower() == 'true':
loglevel = logging.DEBUG
else:
loglevel = logging.INFO
logging.basicConfig(stream=sys.stdout, level=loglevel)
LOG = logging.getLogger('nova_wait_for_compute_service')
iterations = 60
timeout = 10
nova_cfg = '/etc/nova/nova.conf'
if __name__ == '__main__':
parser = argparse.ArgumentParser(usage='%(prog)s [options]')
parser.add_argument('-k', '--insecure',
action="store_false",
dest='insecure',
default=True,
help='Allow insecure connection when using SSL')
args = parser.parse_args()
LOG.debug('Running with parameter insecure = %s',
args.insecure)
if os.path.isfile(nova_cfg):
try:
config.read(nova_cfg)
except Exception:
LOG.exception('Error while reading nova.conf:')
else:
LOG.error('Nova configuration file %s does not exist', nova_cfg)
sys.exit(1)
my_host = config.get('DEFAULT', 'host')
if not my_host:
# If host isn't set nova defaults to this
my_host = socket.gethostname()
loader = loading.get_plugin_loader('password')
auth = loader.load_from_options(
auth_url=config.get('neutron',
'auth_url'),
username=config.get('neutron',
'username'),
password=config.get('neutron',
'password'),
project_name=config.get('neutron',
'project_name'),
project_domain_name=config.get('neutron',
'project_domain_name'),
user_domain_name=config.get('neutron',
'user_domain_name'))
sess = session.Session(auth=auth, verify=args.insecure)
nova = client.Client('2.11', session=sess, endpoint_type='internal',
region_name=config.get('neutron', 'region_name'))
# Wait until this host is listed in the service list
for i in range(iterations):
try:
service_list = nova.services.list(binary='nova-compute')
for entry in service_list:
host = getattr(entry, 'host', '')
zone = getattr(entry, 'zone', '')
if host == my_host and zone != 'internal':
LOG.info('Nova-compute service registered')
sys.exit(0)
LOG.info('Waiting for nova-compute service to register')
except Exception:
LOG.exception(
'Error while waiting for nova-compute service to register')
time.sleep(timeout)
sys.exit(1)
# vim: set et ts=4 sw=4 :