49e934d589
Added Freezer API V2 which supports mainly multitenancy Added a new database driver to support project_id parameter. API v2 will be in development status till the end of pike API v1 will be deprecated by end of Pike oslo.db patch will be based on API v2 Implements blueprint api-v2-multi-tenancy Signed-off-by: Saad Zaher <eng.szaher@gmail.com> Change-Id: I2791246b7d6dc6c91427af45c0930e5d334a4861
77 lines
2.2 KiB
Python
77 lines
2.2 KiB
Python
"""
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(c) Copyright 2014,2015 Hewlett-Packard Development Company, L.P.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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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,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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"""
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from freezer_api.storage import elastic
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from oslo_config import cfg
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from oslo_log import log
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from oslo_utils import importutils
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CONF = cfg.CONF
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LOG = log.getLogger(__name__)
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# storage backend options to be registered
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_OPTS = [
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cfg.StrOpt("backend",
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help="Databse backend section name. This section "
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"will be loaded by the proper driver to connect to "
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"the database."
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),
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cfg.StrOpt('driver',
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default='freezer_api.storage.elastic.ElasticSearchEngine',
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help="Database driver to be used."
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)
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]
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def register_storage_opts():
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"""Register storage configuration options"""
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opt_group = cfg.OptGroup(name='storage',
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title='Freezer Storage Engine')
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CONF.register_group(opt_group)
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CONF.register_opts(_OPTS, group=opt_group)
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def get_db(driver=None):
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"""Automatically loads the database driver to be used."""
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storage = CONF.get('storage')
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if not driver:
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driver = storage['driver']
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driver_instance = importutils.import_object(
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driver,
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backend=storage['backend']
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)
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return driver_instance
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def get_storage_opts():
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"""Returns a dict that contains list of options for db backend"""
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opts = {"storage": _OPTS}
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opts.update(_get_elastic_opts())
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return opts
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def _get_elastic_opts(backend=None):
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"""Return Opts for elasticsearch driver"""
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if not backend:
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backend = "elasticsearch"
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es = elastic.ElasticSearchEngine(backend=backend)
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return {backend: es.get_opts()}
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