magnum/magnum/db/migration.py
Hieu LE d86b5735cd Centralize config option: database section
Centralize config option of database section.
Replace oslo_conf cfg to magnum.conf.

Change-Id: Id12bbf3ad8d3342450cd64cf23761a60d49ee46a
Implements: blueprint centralize-config-magnum
2016-09-22 05:57:01 +00:00

50 lines
1.4 KiB
Python

# Copyright 2010 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# All Rights Reserved.
#
# 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.
"""Database setup and migration commands."""
from stevedore import driver
import magnum.conf
CONF = magnum.conf.CONF
_IMPL = None
def get_backend():
global _IMPL
if not _IMPL:
_IMPL = driver.DriverManager("magnum.database.migration_backend",
CONF.database.backend).driver
return _IMPL
def upgrade(version=None):
"""Migrate the database to `version` or the most recent version."""
return get_backend().upgrade(version)
def version():
return get_backend().version()
def stamp(version):
return get_backend().stamp(version)
def revision(message, autogenerate):
return get_backend().revision(message, autogenerate)