Update migration constant

Update the data migration current release to '2023_1'. Added
empty migration scripts to rule out regression scenarios as well.

Change-Id: Ic97825dd9c38ec1c759e5ca610a19c93fe4ca6a6

Author: konan-abhi

glance/db/migration.py

@@ -29,5 +29,5 @@
 # Migration-related constants
 EXPAND_BRANCH = 'expand'
 CONTRACT_BRANCH = 'contract'
-CURRENT_RELEASE = 'zed'
+CURRENT_RELEASE = '2023_1'
 ALEMBIC_INIT_VERSION = 'liberty'

glance/db/sqlalchemy/alembic_migrations/data_migrations/2023_1_migrate01_empty.py

@@ -0,0 +1,26 @@
+# Copyright (C) 2021 RedHat Inc.
+# 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.
+
+
+def has_migrations(engine):
+    """Returns true if at least one data row can be migrated."""
+
+    return False
+
+
+def migrate(engine):
+    """Return the number of rows migrated."""
+
+    return 0

glance/db/sqlalchemy/alembic_migrations/data_migrations/xena_migrate01_empty.py

@@ -0,0 +1,26 @@
+# Copyright (C) 2021 RedHat Inc.
+# 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.
+
+
+def has_migrations(engine):
+    """Returns true if at least one data row can be migrated."""
+
+    return False
+
+
+def migrate(engine):
+    """Return the number of rows migrated."""
+
+    return 0

glance/db/sqlalchemy/alembic_migrations/data_migrations/yoga_migrate01_empty.py

@@ -0,0 +1,26 @@
+# Copyright (C) 2021 RedHat Inc.
+# 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.
+
+
+def has_migrations(engine):
+    """Returns true if at least one data row can be migrated."""
+
+    return False
+
+
+def migrate(engine):
+    """Return the number of rows migrated."""
+
+    return 0

glance/db/sqlalchemy/alembic_migrations/data_migrations/zed_migrate01_empty.py

@@ -0,0 +1,26 @@
+# Copyright (C) 2021 RedHat Inc.
+# 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.
+
+
+def has_migrations(engine):
+    """Returns true if at least one data row can be migrated."""
+
+    return False
+
+
+def migrate(engine):
+    """Return the number of rows migrated."""
+
+    return 0

glance/db/sqlalchemy/alembic_migrations/versions/2023_1_contract01_empty.py

@@ -0,0 +1,25 @@
+# Copyright (C) 2020 RedHat Inc
+# 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.
+
+
+# revision identifiers, used by Alembic.
+revision = '2023_1_contract01'
+down_revision = 'zed_contract01'
+branch_labels = None
+depends_on = '2023_1_expand01'
+
+
+def upgrade():
+    pass

glance/db/sqlalchemy/alembic_migrations/versions/2023_1_expand01_empty.py

@@ -0,0 +1,30 @@
+# Copyright (C) 2020 RedHat Inc
+#    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.
+
+"""empty expand for symmetry with 2023_1_expand01
+
+Revision ID: ussuri_expand01
+Revises: train_expand01
+Create Date: 2020-01-03 11:55:16.657499
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = '2023_1_expand01'
+down_revision = 'zed_expand01'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    pass

glance/db/sqlalchemy/alembic_migrations/versions/xena_contract01_empty.py

@@ -0,0 +1,25 @@
+# Copyright (C) 2020 RedHat Inc
+# 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.
+
+
+# revision identifiers, used by Alembic.
+revision = 'xena_contract01'
+down_revision = 'wallaby_contract01'
+branch_labels = None
+depends_on = 'xena_expand01'
+
+
+def upgrade():
+    pass

glance/db/sqlalchemy/alembic_migrations/versions/xena_expand01_empty.py

@@ -0,0 +1,30 @@
+# Copyright (C) 2020 RedHat Inc
+#    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.
+
+"""empty expand for symmetry with 2023_1_expand01
+
+Revision ID: ussuri_expand01
+Revises: train_expand01
+Create Date: 2020-01-03 11:55:16.657499
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = 'xena_expand01'
+down_revision = 'wallaby_expand01'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    pass

glance/db/sqlalchemy/alembic_migrations/versions/yoga_contract01_empty.py

@@ -0,0 +1,25 @@
+# Copyright (C) 2020 RedHat Inc
+# 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.
+
+
+# revision identifiers, used by Alembic.
+revision = 'yoga_contract01'
+down_revision = 'xena_contract01'
+branch_labels = None
+depends_on = 'yoga_expand01'
+
+
+def upgrade():
+    pass