Initial instance states migration.

1 files changed, 57 insertions, 0 deletions

diff --git a/nova/db/sqlalchemy/migrate_repo/versions/037_update_instance_states.py b/nova/db/sqlalchemy/migrate_repo/versions/037_update_instance_states.py
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index 000000000..0bbe39def
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+++ b/nova/db/sqlalchemy/migrate_repo/versions/037_update_instance_states.py
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+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2010 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.
+
+from sqlalchemy import MetaData, Table
+
+meta = MetaData()
+
+c_task_state = Column('task_state',
+                           String(length=255, convert_unicode=False,
+                                  assert_unicode=None, unicode_error=None,
+                                  _warn_on_bytestring=False),
+                           nullable=True)
+
+
+def upgrade(migrate_engine):
+    # Upgrade operations go here. Don't create your own engine;
+    # bind migrate_engine to your metadata
+    meta.bind = migrate_engine
+
+    instances = Table('instances', meta, autoload=True,
+                      autoload_with=migrate_engine)
+
+    c_state = instances.c.state
+    c_state.alter(name='power_state')
+
+    c_vm_state = instances.c.state_description
+    c_vm_state.alter(name='vm_state')
+
+    instances.create_column(c_task_state)
+
+
+def downgrade(migrate_engine):
+    meta.bind = migrate_engine
+
+    instances = Table('instances', meta, autoload=True,
+                      autoload_with=migrate_engine)
+
+    c_state = instances.c.power_state
+    c_state.alter(name='state')
+
+    c_vm_state = instances.c.vm_state
+    c_vm_state.alter(name='state_description')
+
+    instances.drop_column('task_state')