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# Copyright 2014 eBay Inc.
#
# Author: Ron Rickard <rrickard@ebaysf.com>
#
# 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.
from sqlalchemy import Integer, DateTime, Enum, UniqueConstraint
from sqlalchemy.schema import Table, Column, MetaData
from designate.sqlalchemy.types import UUID
UPDATE_STATUSES = ['SUCCESS', 'ERROR']
UPDATE_ACTIONS = ['CREATE', 'DELETE', 'UPDATE']
meta = MetaData()
pool_manager_statuses = Table(
'pool_manager_statuses', meta,
Column('id', UUID(), primary_key=True),
Column('version', Integer(), nullable=False),
Column('created_at', DateTime()),
Column('updated_at', DateTime()),
Column('server_id', UUID(), nullable=False),
Column('domain_id', UUID(), nullable=False),
Column('action', Enum(name='update_actions', *UPDATE_ACTIONS),
nullable=False),
Column('status', Enum(name='update_statuses', *UPDATE_STATUSES),
nullable=True),
Column('serial_number', Integer, nullable=False),
UniqueConstraint('server_id', 'domain_id', 'action',
name='unique_pool_manager_status'),
mysql_engine='InnoDB',
mysql_charset='utf8')
def upgrade(migrate_engine):
meta.bind = migrate_engine
with migrate_engine.begin() as conn:
if migrate_engine.name == "mysql":
conn.execute("SET foreign_key_checks = 0;")
elif migrate_engine.name == "postgresql":
conn.execute("SET CONSTRAINTS ALL DEFERRED;")
pool_manager_statuses.create(conn)
if migrate_engine.name == "mysql":
conn.execute("SET foreign_key_checks = 1;")
def downgrade(migrate_engine):
meta.bind = migrate_engine
with migrate_engine.begin() as conn:
if migrate_engine.name == "mysql":
conn.execute("SET foreign_key_checks = 0;")
elif migrate_engine.name == "postgresql":
conn.execute("SET CONSTRAINTS ALL DEFERRED;")
pool_manager_statuses.drop()
if migrate_engine.name == "mysql":
conn.execute("SET foreign_key_checks = 1;")
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