nova/nova/db/sqlalchemy/migrate_repo/versions/026_add_agent_table.py

77 lines
2.7 KiB
Python

# Copyright 2011 OpenStack LLC.
# 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 Boolean, Column, DateTime, Integer
from sqlalchemy import MetaData, String, Table
from nova import log as logging
meta = MetaData()
LOG = logging.getLogger(__name__)
#
# New Tables
#
builds = Table('agent_builds', meta,
Column('created_at', DateTime(timezone=False)),
Column('updated_at', DateTime(timezone=False)),
Column('deleted_at', DateTime(timezone=False)),
Column('deleted', Boolean(create_constraint=True, name=None)),
Column('id', Integer(), primary_key=True, nullable=False),
Column('hypervisor',
String(length=255, convert_unicode=False, assert_unicode=None,
unicode_error=None, _warn_on_bytestring=False)),
Column('os',
String(length=255, convert_unicode=False, assert_unicode=None,
unicode_error=None, _warn_on_bytestring=False)),
Column('architecture',
String(length=255, convert_unicode=False, assert_unicode=None,
unicode_error=None, _warn_on_bytestring=False)),
Column('version',
String(length=255, convert_unicode=False, assert_unicode=None,
unicode_error=None, _warn_on_bytestring=False)),
Column('url',
String(length=255, convert_unicode=False, assert_unicode=None,
unicode_error=None, _warn_on_bytestring=False)),
Column('md5hash',
String(length=255, convert_unicode=False, assert_unicode=None,
unicode_error=None, _warn_on_bytestring=False)),
)
#
# New Column
#
architecture = Column('architecture', String(length=255))
def upgrade(migrate_engine):
# Upgrade operations go here. Don't create your own engine;
# bind migrate_engine to your metadata
meta.bind = migrate_engine
for table in (builds, ):
try:
table.create()
except Exception:
LOG.info(repr(table))
instances = Table('instances', meta, autoload=True,
autoload_with=migrate_engine)
# Add columns to existing tables
instances.create_column(architecture)