63 lines
1.8 KiB
Python
63 lines
1.8 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."""
|
|
|
|
import os
|
|
import threading
|
|
|
|
from oslo_config import cfg
|
|
from oslo_db import options
|
|
from stevedore import driver
|
|
|
|
from cinder.db.sqlalchemy import api as db_api
|
|
|
|
|
|
INIT_VERSION = 122
|
|
|
|
_IMPL = None
|
|
_LOCK = threading.Lock()
|
|
|
|
options.set_defaults(cfg.CONF)
|
|
|
|
MIGRATE_REPO_PATH = os.path.join(
|
|
os.path.abspath(os.path.dirname(__file__)),
|
|
'sqlalchemy',
|
|
'migrate_repo',
|
|
)
|
|
|
|
|
|
def get_backend():
|
|
global _IMPL
|
|
if _IMPL is None:
|
|
with _LOCK:
|
|
if _IMPL is None:
|
|
_IMPL = driver.DriverManager(
|
|
"cinder.database.migration_backend",
|
|
cfg.CONF.database.backend).driver
|
|
return _IMPL
|
|
|
|
|
|
def db_sync(version=None, init_version=INIT_VERSION, engine=None):
|
|
"""Migrate the database to `version` or the most recent version."""
|
|
|
|
if engine is None:
|
|
engine = db_api.get_engine()
|
|
return get_backend().db_sync(engine=engine,
|
|
abs_path=MIGRATE_REPO_PATH,
|
|
version=version,
|
|
init_version=init_version)
|