bc64756995
adds clusters api, with mongodb sharding as the first implemenation. Co-Authored-By: Michael Yu <michayu@ebaysf.com> Co-Authored-By: Mat Lowery <mlowery@ebaysf.com> Co-Authored-By: rumale <rumale@ebaysf.com> Co-Authored-By: Timothy He <the@ebaysf.com> Partially implements: blueprint clustering Change-Id: Icab6fc3baab72e97f3231eaa4476b56b8dafb2a3
78 lines
2.9 KiB
Python
78 lines
2.9 KiB
Python
# Copyright 2014 eBay Software Foundation
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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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from sqlalchemy import ForeignKey
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from sqlalchemy.exc import OperationalError
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from sqlalchemy.schema import Column
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from sqlalchemy.schema import Index
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from sqlalchemy.schema import MetaData
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from trove.db.sqlalchemy.migrate_repo.schema import Boolean
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from trove.db.sqlalchemy.migrate_repo.schema import create_tables
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from trove.db.sqlalchemy.migrate_repo.schema import DateTime
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from trove.db.sqlalchemy.migrate_repo.schema import Integer
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from trove.db.sqlalchemy.migrate_repo.schema import String
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from trove.db.sqlalchemy.migrate_repo.schema import Table
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from trove.openstack.common import log as logging
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logger = logging.getLogger('trove.db.sqlalchemy.migrate_repo.schema')
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meta = MetaData()
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clusters = Table(
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'clusters',
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meta,
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Column('id', String(36), primary_key=True, nullable=False),
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Column('created', DateTime(), nullable=False),
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Column('updated', DateTime(), nullable=False),
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Column('name', String(255), nullable=False),
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Column('task_id', Integer(), nullable=False),
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Column('tenant_id', String(36), nullable=False),
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Column("datastore_version_id", String(36),
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ForeignKey('datastore_versions.id'), nullable=False),
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Column('deleted', Boolean()),
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Column('deleted_at', DateTime()),
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Index("clusters_tenant_id", "tenant_id"),
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Index("clusters_deleted", "deleted"),)
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def upgrade(migrate_engine):
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meta.bind = migrate_engine
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Table('datastores', meta, autoload=True)
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Table('datastore_versions', meta, autoload=True)
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instances = Table('instances', meta, autoload=True)
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# since the downgrade is a no-op, an upgrade after a downgrade will
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# cause an exception because the tables already exist
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# we will catch that case and log an info message
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try:
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create_tables([clusters])
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instances.create_column(Column('cluster_id', String(36),
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ForeignKey("clusters.id")))
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instances.create_column(Column('shard_id', String(36)))
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instances.create_column(Column('type', String(64)))
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cluster_id_idx = Index("instances_cluster_id", instances.c.cluster_id)
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cluster_id_idx.create()
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except OperationalError as e:
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logger.info(e)
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def downgrade(migrate_engine):
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meta.bind = migrate_engine
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# not dropping the table on a rollback because the cluster
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# assets will still exist
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