Merge pull request #156 from cp16net/usage-table

adding usage table

reddwarf/db/sqlalchemy/migrate_repo/versions/010_add_usage.py

@@ -0,0 +1,53 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# 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 ForeignKey
+from sqlalchemy.schema import Column
+from sqlalchemy.schema import MetaData
+from sqlalchemy.schema import UniqueConstraint
+
+from reddwarf.db.sqlalchemy.migrate_repo.schema import create_tables
+from reddwarf.db.sqlalchemy.migrate_repo.schema import DateTime
+from reddwarf.db.sqlalchemy.migrate_repo.schema import drop_tables
+from reddwarf.db.sqlalchemy.migrate_repo.schema import Integer
+from reddwarf.db.sqlalchemy.migrate_repo.schema import String
+from reddwarf.db.sqlalchemy.migrate_repo.schema import Table
+
+
+meta = MetaData()
+
+
+usage = Table('usage', meta,
+    Column('id', String(36), primary_key=True, nullable=False),
+    Column('instance_name', String(36)),
+    Column('tenant_id', String(36)),
+    Column('nova_instance_id', String(36)),
+    Column('instance_size', Integer()),
+    Column('nova_volume_id', String(36)),
+    Column('volume_size', Integer()),
+    Column('end_time', DateTime()),
+    Column('updated', DateTime()))
+
+
+def upgrade(migrate_engine):
+    meta.bind = migrate_engine
+    create_tables([usage])
+
+
+def downgrade(migrate_engine):
+    meta.bind = migrate_engine
+    drop_tables([usage])