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# 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.
#
from alembic import op
from neutron_lib import exceptions
import sqlalchemy as sa
from neutron._i18n import _
"""uniq_floatingips0floating_network_id0fixed_port_id0fixed_ip_addr
Revision ID: 6b461a21bcfc
Revises: 67daae611b6e
Create Date: 2016-06-03 16:00:38.273324
"""
# revision identifiers, used by Alembic.
revision = '6b461a21bcfc'
down_revision = '67daae611b6e'
floatingips = sa.Table(
'floatingips', sa.MetaData(),
sa.Column('floating_network_id', sa.String(36)),
sa.Column('fixed_port_id', sa.String(36)),
sa.Column('fixed_ip_address', sa.String(64)))
class DuplicateFloatingIPforOneFixedIP(exceptions.Conflict):
message = _("Duplicate Floating IPs were created for fixed IP "
"addresse(s) %(fixed_ip_address)s. Database cannot "
"be upgraded. Please remove all duplicate Floating "
"IPs before upgrading the database.")
def upgrade():
op.create_unique_constraint(
'uniq_floatingips0floatingnetworkid0fixedportid0fixedipaddress',
'floatingips',
['floating_network_id', 'fixed_port_id', 'fixed_ip_address'])
def check_sanity(connection):
res = get_duplicate_floating_ip_for_one_fixed_ip(connection)
if res:
raise DuplicateFloatingIPforOneFixedIP(fixed_ip_address=",".join(res))
def get_duplicate_floating_ip_for_one_fixed_ip(connection):
insp = sa.inspect(connection)
if 'floatingips' not in insp.get_table_names():
return []
session = sa.orm.Session(bind=connection)
query = (session.query(floatingips.c.fixed_ip_address)
.group_by(floatingips.c.floating_network_id,
floatingips.c.fixed_port_id,
floatingips.c.fixed_ip_address)
.having(sa.func.count() > 1)).all()
return [q[0] for q in query if q[0] is not None]
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