keystone/keystone/common/sql/contract_repo/versions/024_contract_create_created...

62 lines
2.2 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.
import datetime
import pytz
import sqlalchemy as sql
from sqlalchemy.orm import sessionmaker
_epoch = datetime.datetime.fromtimestamp(0, tz=pytz.UTC)
def _convert_value_datetime_to_int(dt):
dt = dt.replace(tzinfo=pytz.utc)
return int((dt - _epoch).total_seconds() * 1000000)
def upgrade(migrate_engine):
meta = sql.MetaData()
meta.bind = migrate_engine
maker = sessionmaker(bind=migrate_engine)
session = maker()
password_table = sql.Table('password', meta, autoload=True)
passwords = list(password_table.select().execute())
for passwd in passwords:
values = {
'created_at_int': _convert_value_datetime_to_int(passwd.created_at)
}
if passwd.expires_at is not None:
values['expires_at_int'] = _convert_value_datetime_to_int(
passwd.expires_at)
update = password_table.update().where(
password_table.c.id == passwd.id).values(values)
session.execute(update)
session.commit()
password_table = sql.Table('password', meta, autoload=True)
# The created_at_int data cannot really be nullable long term. This
# corrects the data to be not nullable, but must be done in the contract
# phase for two reasons. The first is due to "additive only" requirements.
# The second is because we need to ensure all nodes in the deployment are
# running the Pike code-base before we migrate all password entries. This
# avoids locking the password table or having a partial outage while doing
# the migration.
password_table.c.created_at_int.alter(nullable=False, default=0,
server_default='0')
session.close()