group-based-policy/gbpservice/neutron/db/migration/alembic_migrations/versions/1c564e737f9f_network_extens...

70 lines
2.5 KiB
Python

# 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.
#
"""network_migration_for_svi
Revision ID: 1c564e737f9f
Revises: 804d991a3564
Create Date: 2018-02-27 00:00:00.000000
"""
# revision identifiers, used by Alembic.
revision = '1c564e737f9f'
down_revision = '804d991a3564'
from alembic import op
from alembic import util
from neutron.db import models_v2
import sqlalchemy as sa
from sqlalchemy.orm import lazyload
NetworkExtensionDb = sa.Table(
'apic_aim_network_extensions', sa.MetaData(),
sa.Column('network_id', sa.String(36), nullable=False),
sa.Column('external_network_dn', sa.String(1024)),
sa.Column('nat_type', sa.Enum('distributed', 'edge', '')),
sa.Column('svi', sa.Boolean),
sa.Column('bgp_enable', sa.Boolean,
server_default=sa.false(), nullable=False),
sa.Column('bgp_type', sa.Enum('default_export', ''),
server_default="default_export", nullable=False),
sa.Column('bgp_asn', sa.String(64),
server_default="0", nullable=False))
def upgrade():
session = sa.orm.Session(bind=op.get_bind(), autocommit=True)
with session.begin(subtransactions=True):
# Migrate networks.
net_dbs = (session.query(models_v2.Network)
.options(lazyload('*')).all())
for net_db in net_dbs:
# Skip applying this update if using a legacy plugin
if not hasattr(net_db, 'aim_extension_mapping') or (
net_db.aim_extension_mapping is None):
continue
util.msg("Migrating network: %s" % net_db)
# If this update is successful then it means its an external
# network with its DN set.
res = session.execute(NetworkExtensionDb.update().values(
svi=False).where(NetworkExtensionDb.c.network_id == net_db.id))
if res.rowcount == 0:
session.execute(NetworkExtensionDb.insert().values(
network_id=net_db.id, svi=False))
def downgrade():
pass