41 lines
1.3 KiB
Python
41 lines
1.3 KiB
Python
# 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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"""Database context manager for placement database connection, kept in its
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own file so the nova db_api (which has cascading imports) is not imported.
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"""
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from oslo_db.sqlalchemy import enginefacade
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placement_context_manager = enginefacade.transaction_context()
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def _get_db_conf(conf_group, connection=None):
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kw = dict(conf_group.items())
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if connection is not None:
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kw['connection'] = connection
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return kw
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def configure(conf):
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if conf.placement_database.connection is None:
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placement_context_manager.configure(
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**_get_db_conf(conf.api_database))
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else:
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placement_context_manager.configure(
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**_get_db_conf(conf.placement_database))
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def get_placement_engine():
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return placement_context_manager.get_legacy_facade().get_engine()
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