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# Copyright (c) 2014 The Johns Hopkins University/Applied Physics Laboratory
# 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.
from sqlalchemy import MetaData, Column, Table
from sqlalchemy import String
def upgrade(migrate_engine):
"""Function adds ephemeral storage encryption key uuid field."""
meta = MetaData(bind=migrate_engine)
instances = Table('instances', meta, autoload=True)
shadow_instances = Table('shadow_instances', meta, autoload=True)
ephemeral_key_uuid = Column('ephemeral_key_uuid', String(36))
instances.create_column(ephemeral_key_uuid)
shadow_instances.create_column(ephemeral_key_uuid.copy())
migrate_engine.execute(instances.update().
values(ephemeral_key_uuid=None))
migrate_engine.execute(shadow_instances.update().
values(ephemeral_key_uuid=None))
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