db: Move main DB migrations

We place these in a 'legacy_migrations' directory, as we will soon be
adding alembic-based migrations in a 'migration' directory.

Change-Id: Ib927e4c48f59a467a913875111ffbf64ffe0de90
Signed-off-by: Stephen Finucane <stephenfin@redhat.com>

1 files changed, 22 insertions, 0 deletions

diff --git a/nova/db/main/legacy_migrations/versions/409_placeholder.py b/nova/db/main/legacy_migrations/versions/409_placeholder.py
new file mode 100644
index 0000000000..7a93224504
--- /dev/null
+++ b/nova/db/main/legacy_migrations/versions/409_placeholder.py
@@ -0,0 +1,22 @@
+#    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.
+
+# This is a placeholder for backports.
+# Do not use this number for new work.  New work starts after
+# all the placeholders.
+#
+# See this for more information:
+# http://lists.openstack.org/pipermail/openstack-dev/2013-March/006827.html
+
+
+def upgrade(migrate_engine):
+    pass