656d0b8472
Add tests to verify that database migrations produce the same schema as the database models. Also for MySQL, check that all tables are configured to use InnoDB as the storage engine. These tests make use of the ModelsMigrationsSync test class from oslo.db and the load_tests protocol from Python unittest. Closes-bug: #1346444 Change-Id: Ic0e7eb37c30cc5e94cbdbddf07a6dc1ebf377c17
110 lines
2.9 KiB
Python
110 lines
2.9 KiB
Python
# Copyright 2012 New Dream Network, LLC (DreamHost)
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#
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# 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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from logging import config as logging_config
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from alembic import context
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from oslo.config import cfg
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from oslo.db.sqlalchemy import session
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import sqlalchemy as sa
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from sqlalchemy import event
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from neutron.db.migration.models import head # noqa
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from neutron.db import model_base
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MYSQL_ENGINE = None
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# this is the Alembic Config object, which provides
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# access to the values within the .ini file in use.
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config = context.config
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neutron_config = config.neutron_config
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# Interpret the config file for Python logging.
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# This line sets up loggers basically.
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logging_config.fileConfig(config.config_file_name)
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# set the target for 'autogenerate' support
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target_metadata = model_base.BASEV2.metadata
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def set_mysql_engine():
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try:
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mysql_engine = neutron_config.command.mysql_engine
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except cfg.NoSuchOptError:
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mysql_engine = None
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global MYSQL_ENGINE
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MYSQL_ENGINE = (mysql_engine or
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model_base.BASEV2.__table_args__['mysql_engine'])
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def run_migrations_offline():
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"""Run migrations in 'offline' mode.
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This configures the context with either a URL
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or an Engine.
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Calls to context.execute() here emit the given string to the
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script output.
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"""
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set_mysql_engine()
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kwargs = dict()
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if neutron_config.database.connection:
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kwargs['url'] = neutron_config.database.connection
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else:
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kwargs['dialect_name'] = neutron_config.database.engine
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context.configure(**kwargs)
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with context.begin_transaction():
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context.run_migrations()
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@event.listens_for(sa.Table, 'after_parent_attach')
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def set_storage_engine(target, parent):
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if MYSQL_ENGINE:
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target.kwargs['mysql_engine'] = MYSQL_ENGINE
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def run_migrations_online():
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"""Run migrations in 'online' mode.
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In this scenario we need to create an Engine
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and associate a connection with the context.
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"""
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set_mysql_engine()
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engine = session.create_engine(neutron_config.database.connection)
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connection = engine.connect()
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context.configure(
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connection=connection,
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target_metadata=target_metadata
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)
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try:
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with context.begin_transaction():
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context.run_migrations()
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finally:
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connection.close()
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engine.dispose()
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if context.is_offline_mode():
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run_migrations_offline()
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else:
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run_migrations_online()
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