Added UUID migration

1 files changed, 41 insertions, 0 deletions

diff --git a/nova/db/sqlalchemy/migrate_repo/versions/024_add_uuid_to_instances.py b/nova/db/sqlalchemy/migrate_repo/versions/024_add_uuid_to_instances.py
new file mode 100644
index 000000000..fff194531
--- /dev/null
+++ b/nova/db/sqlalchemy/migrate_repo/versions/024_add_uuid_to_instances.py
@@ -0,0 +1,41 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2011 OpenStack LLC.
+#
+#    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.
+
+import uuid
+
+from sqlalchemy import Column, Integer, MetaData, String, Table
+
+
+meta = MetaData()
+
+instances = Table("instances", meta,
+        Column("id", Integer(), primary_key=True, nullable=False))
+uuid_column = Column("uuid", String(36))
+
+
+def upgrade(migrate_engine):
+    meta.bind = migrate_engine
+    instances.create_column(uuid_column)
+
+    rows = migrate_engine.execute(instances.select())
+    for row in rows:
+        instance_uuid = uuid.uuid4().hex
+        migrate_engine.execute(instances.update().values(uuid=instance_uuid))
+
+
+def downgrade(migrate_engine):
+    meta.bind = migrate_engine
+    instances.drop_column(uuid_column)