6ab254adba
This sets up the framework for adding database migrations to run on the new api database. It splits migration commands so that they can run on the current 'main' database or the new 'api' database. bp: cells-v2-mapping Change-Id: I73dee6fd51b74bd670a6dffa07e875bf86891e97
57 lines
2.1 KiB
Python
57 lines
2.1 KiB
Python
# Copyright 2010 United States Government as represented by the
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# Administrator of the National Aeronautics and Space Administration.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""Database setup and migration commands."""
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from nova.db.sqlalchemy import migration
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IMPL = migration
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def db_sync(version=None, database='main'):
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"""Migrate the database to `version` or the most recent version."""
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return IMPL.db_sync(version=version, database=database)
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def db_version(database='main'):
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"""Display the current database version."""
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return IMPL.db_version(database=database)
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def db_initial_version(database='main'):
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"""The starting version for the database."""
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return IMPL.db_initial_version(database=database)
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def db_null_instance_uuid_scan(delete=False):
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"""Utility for scanning the database to look for NULL instance uuid rows.
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Scans the backing nova database to look for table entries where
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instances.uuid or instance_uuid columns are NULL (except for the
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fixed_ips table since that can contain NULL instance_uuid entries by
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design). Dumps the tables that have NULL instance_uuid entries or
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optionally deletes them based on usage.
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This tool is meant to be used in conjunction with the 267 database
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migration script to detect and optionally cleanup NULL instance_uuid
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records.
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:param delete: If true, delete NULL instance_uuid records found, else
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just query to see if they exist for reporting.
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:returns: dict of table name to number of hits for NULL instance_uuid rows.
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"""
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return IMPL.db_null_instance_uuid_scan(delete=delete)
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