71 lines
2.6 KiB
Python
71 lines
2.6 KiB
Python
# Copyright 2016 OpenStack Foundation
|
|
#
|
|
# 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.
|
|
#
|
|
|
|
"""migrate dns name from port"""
|
|
|
|
# revision identifiers, used by Alembic.
|
|
revision = 'a84ccf28f06a'
|
|
down_revision = 'b67e765a3524'
|
|
depends_on = ('a963b38d82f4',)
|
|
|
|
from alembic import op
|
|
from neutron_lib.db import constants
|
|
import sqlalchemy as sa
|
|
|
|
|
|
ports = sa.Table(
|
|
'ports', sa.MetaData(),
|
|
sa.Column('id', sa.String(length=36), nullable=False),
|
|
sa.Column('dns_name', sa.String(length=constants.FQDN_FIELD_SIZE),
|
|
nullable=True))
|
|
|
|
|
|
portdnses = sa.Table('portdnses', sa.MetaData(),
|
|
sa.Column('port_id', sa.String(36),
|
|
sa.ForeignKey('ports.id',
|
|
ondelete="CASCADE"),
|
|
primary_key=True, index=True),
|
|
sa.Column('dns_name', sa.String(length=255),
|
|
nullable=False),
|
|
|
|
sa.Column('current_dns_name', sa.String(255),
|
|
nullable=False),
|
|
sa.Column('current_dns_domain', sa.String(255),
|
|
nullable=False),
|
|
sa.Column('previous_dns_name', sa.String(255),
|
|
nullable=False),
|
|
sa.Column('previous_dns_domain', sa.String(255),
|
|
nullable=False))
|
|
|
|
|
|
def migrate_records_for_existing():
|
|
session = sa.orm.Session(bind=op.get_bind())
|
|
with session.begin(subtransactions=True):
|
|
for row in session.query(ports):
|
|
if row[1]:
|
|
res = session.execute(portdnses.update().values(
|
|
dns_name=row[1]).where(portdnses.c.port_id == row[0]))
|
|
if res.rowcount == 0:
|
|
session.execute(portdnses.insert().values(
|
|
port_id=row[0], current_dns_name='',
|
|
current_dns_domain='', previous_dns_name='',
|
|
previous_dns_domain='', dns_name=row[1]))
|
|
session.commit()
|
|
|
|
|
|
def upgrade():
|
|
migrate_records_for_existing()
|
|
op.drop_column('ports', 'dns_name')
|