tricircle/tricircle/db/migrate_repo/versions/003_shadow_agent.py

49 lines
1.7 KiB
Python

# Copyright 2017 Huawei Technologies Co., Ltd.
# 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.
import migrate
import sqlalchemy as sql
def upgrade(migrate_engine):
meta = sql.MetaData()
meta.bind = migrate_engine
shadow_agents = sql.Table(
'shadow_agents', meta,
sql.Column('id', sql.String(length=36), primary_key=True),
sql.Column('pod_id', sql.String(length=64), nullable=False),
sql.Column('host', sql.String(length=255), nullable=False),
sql.Column('type', sql.String(length=36), nullable=False),
sql.Column('tunnel_ip', sql.String(length=48), nullable=False),
migrate.UniqueConstraint(
'host', 'type',
name='host0type'),
mysql_engine='InnoDB',
mysql_charset='utf8')
shadow_agents.create()
pods = sql.Table('pods', meta, autoload=True)
fkey = {'columns': [shadow_agents.c.pod_id],
'references': [pods.c.pod_id]}
migrate.ForeignKeyConstraint(columns=fkey['columns'],
refcolumns=fkey['references'],
name=fkey.get('name')).create()
def downgrade(migrate_engine):
raise NotImplementedError('downgrade not support')