python-openstackclient/openstackclient/compute/client.py
2015-04-19 03:23:12 +00:00

74 lines
2.2 KiB
Python

# Copyright 2012-2013 OpenStack, LLC.
#
# 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 logging
from openstackclient.common import utils
LOG = logging.getLogger(__name__)
DEFAULT_COMPUTE_API_VERSION = '2'
API_VERSION_OPTION = 'os_compute_api_version'
API_NAME = 'compute'
API_VERSIONS = {
"2": "novaclient.client",
}
def make_client(instance):
"""Returns a compute service client."""
# Defer client imports until we actually need them
from novaclient import client as nova_client
from novaclient import extension
try:
from novaclient.v2.contrib import list_extensions
except ImportError:
from novaclient.v1_1.contrib import list_extensions
compute_client = nova_client.get_client_class(
instance._api_version[API_NAME],
)
LOG.debug('Instantiating compute client: %s', compute_client)
# Set client http_log_debug to True if verbosity level is high enough
http_log_debug = utils.get_effective_log_level() <= logging.DEBUG
extensions = [extension.Extension('list_extensions', list_extensions)]
client = compute_client(
session=instance.session,
extensions=extensions,
http_log_debug=http_log_debug,
timings=instance.timing,
region_name=instance._region_name,
)
return client
def build_option_parser(parser):
"""Hook to add global options"""
parser.add_argument(
'--os-compute-api-version',
metavar='<compute-api-version>',
default=utils.env(
'OS_COMPUTE_API_VERSION',
default=DEFAULT_COMPUTE_API_VERSION),
help='Compute API version, default=' +
DEFAULT_COMPUTE_API_VERSION +
' (Env: OS_COMPUTE_API_VERSION)')
return parser