deb-glance/glance/db/migration.py
Sabari Kumar Murugesan e5d10c3c1b Fix existing migrations to create utf-8 tables for MySQL DB
oslo.db mandates all tables should be created with utf-8 charset
when using MySQL DB. We added an option (deprecated) to skip this
sanity check and it was subsequently removed in Liberty.

This patch fixes existing migration scripts to create tables with
utf-8 charset. Since oslo.db does a sanity check before running
the migrations, it's safe to assume that only new tables created
since the previous migration will be affected.

Closes-bug: #1279000

Change-Id: Ia31dc9e5d4494d1b9633f916fa6e2704d33dffb0
2015-07-29 22:20:28 -07:00

66 lines
1.9 KiB
Python

# Copyright 2010 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# All Rights Reserved.
#
# Copyright 2013 OpenStack Foundation
# Copyright 2013 IBM Corp.
#
# 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 as db_options
from stevedore import driver
from glance.db.sqlalchemy import api as db_api
_IMPL = None
_LOCK = threading.Lock()
db_options.set_defaults(cfg.CONF)
def get_backend():
global _IMPL
if _IMPL is None:
with _LOCK:
if _IMPL is None:
_IMPL = driver.DriverManager(
"glance.database.migration_backend",
cfg.CONF.database.backend).driver
return _IMPL
INIT_VERSION = 0
MIGRATE_REPO_PATH = os.path.join(
os.path.abspath(os.path.dirname(__file__)),
'sqlalchemy',
'migrate_repo',
)
def db_sync(version=None, init_version=0, 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)