sahara/sahara/utils/openstack/cinder.py

88 lines
2.9 KiB
Python

# -*- coding: utf-8 -*-
# Copyright (c) 2013 Mirantis Inc.
# Copyright (c) 2014 Adrien Vergé <adrien.verge@numergy.com>
#
# 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.
from cinderclient.v3 import client as cinder_client_v3
from keystoneauth1 import exceptions as keystone_exceptions
from oslo_config import cfg
from oslo_log import log as logging
from sahara import context
from sahara.service import sessions
from sahara.utils.openstack import base
from sahara.utils.openstack import keystone
LOG = logging.getLogger(__name__)
opts = [
cfg.IntOpt('api_version', default=3,
help='Version of the Cinder API to use.',
deprecated_name='cinder_api_version'),
cfg.BoolOpt('api_insecure',
default=False,
help='Allow to perform insecure SSL requests to cinder.'),
cfg.StrOpt('ca_file',
help='Location of ca certificates file to use for cinder '
'client requests.'),
cfg.StrOpt("endpoint_type",
default="internalURL",
help="Endpoint type for cinder client requests")
]
cinder_group = cfg.OptGroup(name='cinder',
title='Cinder client options')
CONF = cfg.CONF
CONF.register_group(cinder_group)
CONF.register_opts(opts, group=cinder_group)
def validate_config():
if CONF.cinder.api_version != 3:
LOG.warning('Unsupported Cinder API version: {bad}. Please set a '
'correct value for cinder.api_version in your '
'sahara.conf file (currently supported versions are: '
'{supported}). Falling back to Cinder API version 3.'
.format(bad=CONF.cinder.api_version,
supported=[3]))
CONF.set_override('api_version', 3, group='cinder')
def client():
session = sessions.cache().get_session(sessions.SESSION_TYPE_CINDER)
auth = keystone.auth()
cinder = cinder_client_v3.Client(
session=session, auth=auth,
endpoint_type=CONF.cinder.endpoint_type,
region_name=CONF.os_region_name)
return cinder
def check_cinder_exists():
service_type = 'volumev3'
try:
base.url_for(context.current().service_catalog, service_type,
endpoint_type=CONF.cinder.endpoint_type)
return True
except keystone_exceptions.EndpointNotFound:
return False
def get_volume(volume_id):
return base.execute_with_retries(client().volumes.get, volume_id)