db: Remove legacy migrations

sqlalchemy-migrate does not (and will not) support sqlalchemy 2.0. We
need to drop these migrations to ensure we can upgrade our sqlalchemy
version.

Change-Id: I31ba9e4f129a7cc28744e814b5fd28eb284ae3de
Signed-off-by: Stephen Finucane <sfinucan@redhat.com>

keystone/cmd/cli.py

@@ -286,14 +286,6 @@ class DbSync(BaseApp):
             )
             return 2
 
-        if isinstance(expand_version, int):
-            # we're still using sqlalchemy-migrate
-            LOG.info(
-                'Your database is currently using legacy version control. '
-                'Your first step is to run `keystone-manage db_sync --expand`.'
-            )
-            return 2
-
         try:
             contract_version = upgrades.get_db_version(branch='contract')
         except db_exception.DBMigrationError:

keystone/common/sql/legacy_migrations/contract_repo/README.rst

@@ -1,13 +0,0 @@
-Contract repo migrations
-========================
-
-.. warning::
-
-    This repo is deprecated and will be removed in a future release. All new
-    migrations should be alembic-based and placed in
-    ``keystone/common/sql/migrations``.
-
-Contract-style or destructive migrations for the database.
-
-This is a database migration repository. More information at
-https://opendev.org/x/sqlalchemy-migrate

keystone/common/sql/legacy_migrations/contract_repo/manage.py

@@ -1,18 +0,0 @@
-#!/usr/bin/env python
-
-#  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 migrate.versioning.shell import main
-
-if __name__ == '__main__':
-    main(debug='False')

keystone/common/sql/legacy_migrations/contract_repo/migrate.cfg

@@ -1,25 +0,0 @@
-[db_settings]
-# Used to identify which repository this database is versioned under.
-# You can use the name of your project.
-repository_id=keystone_contract
-
-# The name of the database table used to track the schema version.
-# This name shouldn't already be used by your project.
-# If this is changed once a database is under version control, you'll need to
-# change the table name in each database too.
-version_table=migrate_version
-
-# When committing a change script, Migrate will attempt to generate the
-# sql for all supported databases; normally, if one of them fails - probably
-# because you don't have that database installed - it is ignored and the
-# commit continues, perhaps ending successfully.
-# Databases in this list MUST compile successfully during a commit, or the
-# entire commit will fail. List the databases your application will actually
-# be using to ensure your updates to that database work properly.
-# This must be a list; example: ['postgres','sqlite']
-required_dbs=[]
-
-# When creating new change scripts, Migrate will stamp the new script with
-# a version number. By default this is latest_version + 1. You can set this
-# to 'true' to tell Migrate to use the UTC timestamp instead.
-use_timestamp_numbering=False

keystone/common/sql/legacy_migrations/contract_repo/versions/073_contract_initial_migration.py

@@ -1,18 +0,0 @@
-# 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.
-
-# A null initial migration to open this repo. Do not re-use replace this with
-# a real migration, add additional ones in subsequent version scripts.
-
-
-def upgrade(migrate_engine):
-    pass

keystone/common/sql/legacy_migrations/contract_repo/versions/074_placeholder.py

@@ -1,18 +0,0 @@
-#    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 Ussuri backports. Do not use this number for new
-# Victoria work. New Victoria work starts after all the placeholders.
-
-
-def upgrade(migrate_engine):
-    pass

keystone/common/sql/legacy_migrations/contract_repo/versions/075_placeholder.py

@@ -1,18 +0,0 @@
-#    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 Ussuri backports. Do not use this number for new
-# Victoria work. New Victoria work starts after all the placeholders.
-
-
-def upgrade(migrate_engine):
-    pass

keystone/common/sql/legacy_migrations/contract_repo/versions/076_placeholder.py

@@ -1,18 +0,0 @@
-#    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 Ussuri backports. Do not use this number for new
-# Victoria work. New Victoria work starts after all the placeholders.
-
-
-def upgrade(migrate_engine):
-    pass

keystone/common/sql/legacy_migrations/contract_repo/versions/077_placeholder.py

@@ -1,18 +0,0 @@
-#    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 Ussuri backports. Do not use this number for new
-# Victoria work. New Victoria work starts after all the placeholders.
-
-
-def upgrade(migrate_engine):
-    pass

keystone/common/sql/legacy_migrations/contract_repo/versions/078_placeholder.py

@@ -1,18 +0,0 @@
-#    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 Ussuri backports. Do not use this number for new
-# Victoria work. New Victoria work starts after all the placeholders.
-
-
-def upgrade(migrate_engine):
-    pass

keystone/common/sql/legacy_migrations/contract_repo/versions/079_contract_update_local_id_limit.py

@@ -1,18 +0,0 @@
-#    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 Ussuri backports. Do not use this number for new
-# Victoria work. New Victoria work starts after all the placeholders.
-
-
-def upgrade(migrate_engine):
-    pass

keystone/common/sql/legacy_migrations/data_migration_repo/README.rst

@@ -1,13 +0,0 @@
-Data migration repo migrations
-==============================
-
-.. warning::
-
-    This repo is deprecated and will be removed in a future release. All new
-    migrations should be alembic-based and placed in
-    ``keystone/common/sql/migrations``.
-
-Data migrations for the database.
-
-This is a database migration repository. More information at
-https://opendev.org/x/sqlalchemy-migrate

keystone/common/sql/legacy_migrations/data_migration_repo/manage.py

@@ -1,18 +0,0 @@
-#!/usr/bin/env python
-
-#  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 migrate.versioning.shell import main
-
-if __name__ == '__main__':
-    main(debug='False')

keystone/common/sql/legacy_migrations/data_migration_repo/migrate.cfg

@@ -1,25 +0,0 @@
-[db_settings]
-# Used to identify which repository this database is versioned under.
-# You can use the name of your project.
-repository_id=keystone_data_migrate
-
-# The name of the database table used to track the schema version.
-# This name shouldn't already be used by your project.
-# If this is changed once a database is under version control, you'll need to
-# change the table name in each database too.
-version_table=migrate_version
-
-# When committing a change script, Migrate will attempt to generate the
-# sql for all supported databases; normally, if one of them fails - probably
-# because you don't have that database installed - it is ignored and the
-# commit continues, perhaps ending successfully.
-# Databases in this list MUST compile successfully during a commit, or the
-# entire commit will fail. List the databases your application will actually
-# be using to ensure your updates to that database work properly.
-# This must be a list; example: ['postgres','sqlite']
-required_dbs=[]
-
-# When creating new change scripts, Migrate will stamp the new script with
-# a version number. By default this is latest_version + 1. You can set this
-# to 'true' to tell Migrate to use the UTC timestamp instead.
-use_timestamp_numbering=False

keystone/common/sql/legacy_migrations/data_migration_repo/versions/073_migrate_initial_migration.py

@@ -1,59 +0,0 @@
-# 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.
-
-# A null initial migration to open this repo. Do not re-use replace this with
-# a real migration, add additional ones in subsequent version scripts.
-
-import sqlalchemy as sql
-import sqlalchemy.orm
-
-NULL_DOMAIN_ID = '<<keystone.domain.root>>'
-
-
-def upgrade(migrate_engine):
-
-    def _generate_root_domain_project():
-        # Generate a project that will act as a root for all domains, in order
-        # for use to be able to use a FK constraint on domain_id. Projects
-        # acting as a domain will not reference this as their parent_id, just
-        # as domain_id.
-        #
-        # This special project is filtered out by the driver, so is never
-        # visible to the manager or API.
-
-        project_ref = {
-            'id': NULL_DOMAIN_ID,
-            'name': NULL_DOMAIN_ID,
-            'enabled': False,
-            'description': '',
-            'domain_id': NULL_DOMAIN_ID,
-            'is_domain': True,
-            'parent_id': None,
-            'extra': '{}',
-        }
-        return project_ref
-
-    meta = sql.MetaData()
-    # NOTE(stephenfin): This is not compatible with SQLAlchemy 2.0 but neither
-    # is sqlalchemy-migrate which requires this. We'll remove these migrations
-    # when dropping SQLAlchemy < 2.x support
-    meta.bind = migrate_engine
-    session = sql.orm.sessionmaker(bind=migrate_engine)()
-
-    project = sql.Table('project', meta, autoload_with=migrate_engine)
-
-    root_domain_project = _generate_root_domain_project()
-    new_entry = project.insert().values(**root_domain_project)
-    session.execute(new_entry)
-    session.commit()
-
-    session.close()

keystone/common/sql/legacy_migrations/data_migration_repo/versions/074_placeholder.py

@@ -1,18 +0,0 @@
-#    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 Ussuri backports. Do not use this number for new
-# Victoria work. New Victoria work starts after all the placeholders.
-
-
-def upgrade(migrate_engine):
-    pass

keystone/common/sql/legacy_migrations/data_migration_repo/versions/075_placeholder.py

@@ -1,18 +0,0 @@
-#    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 Ussuri backports. Do not use this number for new
-# Victoria work. New Victoria work starts after all the placeholders.
-
-
-def upgrade(migrate_engine):
-    pass

keystone/common/sql/legacy_migrations/data_migration_repo/versions/076_placeholder.py

@@ -1,18 +0,0 @@
-#    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 Ussuri backports. Do not use this number for new
-# Victoria work. New Victoria work starts after all the placeholders.
-
-
-def upgrade(migrate_engine):
-    pass

keystone/common/sql/legacy_migrations/data_migration_repo/versions/077_placeholder.py

@@ -1,18 +0,0 @@
-#    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 Ussuri backports. Do not use this number for new
-# Victoria work. New Victoria work starts after all the placeholders.
-
-
-def upgrade(migrate_engine):
-    pass

keystone/common/sql/legacy_migrations/data_migration_repo/versions/078_placeholder.py

@@ -1,18 +0,0 @@
-#    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 Ussuri backports. Do not use this number for new
-# Victoria work. New Victoria work starts after all the placeholders.
-
-
-def upgrade(migrate_engine):
-    pass

keystone/common/sql/legacy_migrations/data_migration_repo/versions/079_migrate_update_local_id_limit.py

@@ -1,18 +0,0 @@
-#    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 Ussuri backports. Do not use this number for new
-# Victoria work. New Victoria work starts after all the placeholders.
-
-
-def upgrade(migrate_engine):
-    pass

keystone/common/sql/legacy_migrations/expand_repo/README.rst

@@ -1,13 +0,0 @@
-Expand repo migrations
-======================
-
-.. warning::
-
-    This repo is deprecated and will be removed in a future release. All new
-    migrations should be alembic-based and placed in
-    ``keystone/common/sql/migrations``.
-
-Expand-style or additive migrations for the database.
-
-This is a database migration repository. More information at
-https://opendev.org/x/sqlalchemy-migrate

keystone/common/sql/legacy_migrations/expand_repo/__init__.py

@@ -1,15 +0,0 @@
-# Copyright 2012 OpenStack Foundation
-#
-# 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 keystone.common.sql.core import *  # noqa

keystone/common/sql/legacy_migrations/expand_repo/manage.py

@@ -1,18 +0,0 @@
-#!/usr/bin/env python
-
-#  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 migrate.versioning.shell import main
-
-if __name__ == '__main__':
-    main(debug='False')

keystone/common/sql/legacy_migrations/expand_repo/migrate.cfg

@@ -1,25 +0,0 @@
-[db_settings]
-# Used to identify which repository this database is versioned under.
-# You can use the name of your project.
-repository_id=keystone_expand
-
-# The name of the database table used to track the schema version.
-# This name shouldn't already be used by your project.
-# If this is changed once a database is under version control, you'll need to
-# change the table name in each database too.
-version_table=migrate_version
-
-# When committing a change script, Migrate will attempt to generate the
-# sql for all supported databases; normally, if one of them fails - probably
-# because you don't have that database installed - it is ignored and the
-# commit continues, perhaps ending successfully.
-# Databases in this list MUST compile successfully during a commit, or the
-# entire commit will fail. List the databases your application will actually
-# be using to ensure your updates to that database work properly.
-# This must be a list; example: ['postgres','sqlite']
-required_dbs=[]
-
-# When creating new change scripts, Migrate will stamp the new script with
-# a version number. By default this is latest_version + 1. You can set this
-# to 'true' to tell Migrate to use the UTC timestamp instead.
-use_timestamp_numbering=False

keystone/common/sql/legacy_migrations/expand_repo/versions/074_placeholder.py

@@ -1,18 +0,0 @@
-#    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 Ussuri backports. Do not use this number for new
-# Victoria work. New Victoria work starts after all the placeholders.
-
-
-def upgrade(migrate_engine):
-    pass

keystone/common/sql/legacy_migrations/expand_repo/versions/075_placeholder.py

@@ -1,18 +0,0 @@
-#    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 Ussuri backports. Do not use this number for new
-# Victoria work. New Victoria work starts after all the placeholders.
-
-
-def upgrade(migrate_engine):
-    pass

keystone/common/sql/legacy_migrations/expand_repo/versions/076_placeholder.py

@@ -1,18 +0,0 @@
-#    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 Ussuri backports. Do not use this number for new
-# Victoria work. New Victoria work starts after all the placeholders.
-
-
-def upgrade(migrate_engine):
-    pass

keystone/common/sql/legacy_migrations/expand_repo/versions/077_placeholder.py

@@ -1,18 +0,0 @@
-#    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 Ussuri backports. Do not use this number for new
-# Victoria work. New Victoria work starts after all the placeholders.
-
-
-def upgrade(migrate_engine):
-    pass

keystone/common/sql/legacy_migrations/expand_repo/versions/078_placeholder.py

@@ -1,18 +0,0 @@
-#    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 Ussuri backports. Do not use this number for new
-# Victoria work. New Victoria work starts after all the placeholders.
-
-
-def upgrade(migrate_engine):
-    pass

keystone/common/sql/legacy_migrations/expand_repo/versions/079_expand_update_local_id_limit.py

@@ -1,28 +0,0 @@
-#    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 sqlalchemy as sql
-
-
-def upgrade(migrate_engine):
-
-    meta = sql.MetaData()
-
-    # NOTE(stephenfin): This is not compatible with SQLAlchemy 2.0 but neither
-    # is sqlalchemy-migrate which requires this. We'll remove these migrations
-    # when dropping SQLAlchemy < 2.x support
-    meta.bind = migrate_engine
-
-    id_mapping_table = sql.Table(
-        'id_mapping', meta, autoload_with=migrate_engine,
-    )
-    id_mapping_table.c.local_id.alter(type=sql.String(255))

keystone/common/sql/legacy_migrations/expand_repo/versions/__init__.py

@@ -1,15 +0,0 @@
-# Copyright 2012 OpenStack Foundation
-#
-# 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 keystone.common.sql.core import *  # noqa

keystone/common/sql/upgrades.py

@@ -20,9 +20,6 @@ from alembic import command as alembic_api
 from alembic import config as alembic_config
 from alembic import migration as alembic_migration
 from alembic import script as alembic_script
-from migrate import exceptions as migrate_exceptions
-from migrate.versioning import api as migrate_api
-from migrate.versioning import repository as migrate_repository
 from oslo_db import exception as db_exception
 from oslo_log import log as logging
 
@@ -33,7 +30,6 @@ CONF = keystone.conf.CONF
 LOG = logging.getLogger(__name__)
 
 ALEMBIC_INIT_VERSION = '27e647c0fad4'
-MIGRATE_INIT_VERSION = 72
 
 EXPAND_BRANCH = 'expand'
 DATA_MIGRATION_BRANCH = 'data_migration'
@@ -50,25 +46,6 @@ VERSIONS_PATH = os.path.join(
 )
 
 
-def _find_migrate_repo(branch):
-    """Get the project's change script repository.
-
-    :param branch: Name of the repository "branch" to be used; this will be
-        transformed to repository path.
-    :returns: An instance of ``migrate.versioning.repository.Repository``
-    """
-    abs_path = os.path.abspath(
-        os.path.join(
-            os.path.dirname(sql.__file__),
-            'legacy_migrations',
-            f'{branch}_repo',
-        )
-    )
-    if not os.path.exists(abs_path):
-        raise db_exception.DBMigrationError("Path %s not found" % abs_path)
-    return migrate_repository.Repository(abs_path)
-
-
 def _find_alembic_conf():
     """Get the project's alembic configuration.
 
@@ -140,45 +117,12 @@ def get_current_heads():
     return heads
 
 
-def _is_database_under_migrate_control(engine):
-    # if any of the repos is present, they're all present (in theory, at least)
-    repository = _find_migrate_repo('expand')
-    try:
-        migrate_api.db_version(engine, repository)
-        return True
-    except migrate_exceptions.DatabaseNotControlledError:
-        return False
-
-
 def _is_database_under_alembic_control(engine):
     with engine.connect() as conn:
         context = alembic_migration.MigrationContext.configure(conn)
         return bool(context.get_current_heads())
 
 
-def _init_alembic_on_legacy_database(engine, config):
-    """Init alembic in an existing environment with sqlalchemy-migrate."""
-    LOG.info(
-        'The database is still under sqlalchemy-migrate control; '
-        'applying any remaining sqlalchemy-migrate-based migrations '
-        'and fake applying the initial alembic migration'
-    )
-
-    # bring all repos up to date; note that we're relying on the fact that
-    # there aren't any "real" contract migrations left (since the great squash
-    # of migrations in yoga) so we're really only applying the expand side of
-    # '079_expand_update_local_id_limit' and the rest are for completeness'
-    # sake
-    for branch in (EXPAND_BRANCH, DATA_MIGRATION_BRANCH, CONTRACT_BRANCH):
-        repository = _find_migrate_repo(branch or 'expand')
-        migrate_api.upgrade(engine, repository)
-
-    # re-use the connection rather than creating a new one
-    with engine.begin() as connection:
-        config.attributes['connection'] = connection
-        alembic_api.stamp(config, ALEMBIC_INIT_VERSION)
-
-
 def _upgrade_alembic(engine, config, branch):
     revision = 'heads'
     if branch:
@@ -209,17 +153,10 @@ def get_db_version(branch=EXPAND_BRANCH, *, engine=None):
     engine_url = str(engine.url).replace('%', '%%')
     config.set_main_option('sqlalchemy.url', str(engine_url))
 
-    migrate_version = None
+    # we use '.get' since the particular branch might not have been created
-    if _is_database_under_migrate_control(engine):
+    alembic_version = _get_current_heads(engine, config).get(branch)
-        repository = _find_migrate_repo(branch)
-        migrate_version = migrate_api.db_version(engine, repository)
 
-    alembic_version = None
+    return alembic_version
-    if _is_database_under_alembic_control(engine):
-        # we use '.get' since the particular branch might not have been created
-        alembic_version = _get_current_heads(engine, config).get(branch)
-
-    return alembic_version or migrate_version
 
 
 def _db_sync(branch=None, *, engine=None):
@@ -241,16 +178,6 @@ def _db_sync(branch=None, *, engine=None):
     engine_url = str(engine.url).replace('%', '%%')
     config.set_main_option('sqlalchemy.url', str(engine_url))
 
-    # if we're in a deployment where sqlalchemy-migrate is already present,
-    # then apply all the updates for that and fake apply the initial
-    # alembic migration; if we're not then 'upgrade' will take care of
-    # everything this should be a one-time operation
-    if (
-        not _is_database_under_alembic_control(engine) and
-        _is_database_under_migrate_control(engine)
-    ):
-        _init_alembic_on_legacy_database(engine, config)
-
     _upgrade_alembic(engine, config, branch)
 
 

keystone/tests/unit/common/sql/test_upgrades.py

@@ -21,7 +21,6 @@ test will then use that DB and username/password combo to run the tests.
 """
 
 import fixtures
-from migrate.versioning import api as migrate_api
 from oslo_db import options as db_options
 from oslo_db.sqlalchemy import enginefacade
 from oslo_db.sqlalchemy import test_fixtures
@@ -292,49 +291,3 @@ class TestModelsSyncPostgreSQL(
     base.BaseTestCase,
 ):
     FIXTURE = test_fixtures.PostgresqlOpportunisticFixture
-
-
-class KeystoneModelsMigrationsLegacySync(KeystoneModelsMigrationsSync):
-    """Test that the models match the database after old migrations are run."""
-
-    def db_sync(self, engine):
-        # the 'upgrades._db_sync' method will not use the legacy
-        # sqlalchemy-migrate-based migration flow unless the database is
-        # already controlled with sqlalchemy-migrate, so we need to manually
-        # enable version controlling with this tool to test this code path
-        for branch in (
-            upgrades.EXPAND_BRANCH,
-            upgrades.DATA_MIGRATION_BRANCH,
-            upgrades.CONTRACT_BRANCH,
-        ):
-            repository = upgrades._find_migrate_repo(branch)
-            migrate_api.version_control(
-                engine, repository, upgrades.MIGRATE_INIT_VERSION)
-
-        # now we can apply migrations as expected and the legacy path will be
-        # followed
-        super().db_sync(engine)
-
-
-class TestModelsLegacySyncSQLite(
-    KeystoneModelsMigrationsLegacySync,
-    test_fixtures.OpportunisticDBTestMixin,
-    base.BaseTestCase,
-):
-    pass
-
-
-class TestModelsLegacySyncMySQL(
-    KeystoneModelsMigrationsLegacySync,
-    test_fixtures.OpportunisticDBTestMixin,
-    base.BaseTestCase,
-):
-    FIXTURE = test_fixtures.MySQLOpportunisticFixture
-
-
-class TestModelsLegacySyncPostgreSQL(
-    KeystoneModelsMigrationsLegacySync,
-    test_fixtures.OpportunisticDBTestMixin,
-    base.BaseTestCase,
-):
-    FIXTURE = test_fixtures.PostgresqlOpportunisticFixture

keystone/tests/unit/test_sql_upgrade.py

@@ -40,7 +40,6 @@ For further information, see `oslo.db documentation
 """
 
 import fixtures
-from migrate.versioning import script
 from oslo_db import options as db_options
 from oslo_db.sqlalchemy import enginefacade
 from oslo_db.sqlalchemy import test_fixtures as db_fixtures
@@ -239,11 +238,6 @@ class MigrateBase(
         self.engine = enginefacade.writer.get_engine()
         self.sessionmaker = enginefacade.writer.get_sessionmaker()
 
-        # NOTE(dstanek): Clear out sqlalchemy-migrate's script cache to allow
-        # us to have multiple repos (expand, migrate, contract) where the
-        # modules have the same name (001_awesome.py).
-        self.addCleanup(script.PythonScript.clear)
-
         db_options.set_defaults(CONF, connection=self.engine.url)
 
         # Override keystone's context manager to be oslo.db's global context

releasenotes/notes/remove-sqlalchemy-migrate-a4fa47685c7e28c6.yaml

@@ -0,0 +1,5 @@
+---
+upgrade:
+  - |
+    The legacy ``sqlalchemy-migrate`` migrations, which have been deprecated
+    since Zed, have been removed. There should be no end-user impact.

requirements.txt

@@ -12,7 +12,6 @@ Flask!=0.11,>=1.0.2  # BSD
 Flask-RESTful>=0.3.5  # BSD
 cryptography>=2.7 # BSD/Apache-2.0
 SQLAlchemy>=1.4.0 # MIT
-sqlalchemy-migrate>=0.13.0 # Apache-2.0
 stevedore>=1.20.0 # Apache-2.0
 passlib>=1.7.0 # BSD
 python-keystoneclient>=3.8.0 # Apache-2.0

tools/generate-schemas

@@ -1,134 +0,0 @@
-#!/usr/bin/env bash
-#
-# Script to generate schemas for the various versions.
-#
-# Some setup is required, similar to the opportunistic tests.
-#
-# MySQL ->
-#
-# $ mysql -uroot
-# MariaDB [(none)]> CREATE DATABASE keystone
-# MariaDB [(none)]> GRANT ALL PRIVILEGES ON keystone.* TO 'keystone'@'localhost' IDENTIFIED BY 'password';
-# MariaDB [(none)]> quit;
-#
-# Postgres ->
-#
-# $ sudo -u postgres psql
-# postgres=# create user keystone with createdb login password 'password';
-# postgres=# create database keystone with owner keystone;
-# postgres=# quit;
-#
-# Note that you may also have to configure 'pg_hba.conf' to use password-based
-# auth instead of "ident", if you haven't done so already. You can locate this
-# with 'locate pg_hba.conf'. More details at
-# https://ubuntu.com/server/docs/databases-postgresql
-
-set -o xtrace
-set -e
-
-source .tox/py38/bin/activate
-
-INIT_VERSION=$(ls -1 keystone/common/sql/legacy_migrations/expand_repo/versions/ | head -1 | awk -F_ '{print $1}' | sed 's/^0*//')
-INIT_VERSION=$(($INIT_VERSION-1))
-
-echo "Detected init version of $INIT_VERSION"
-
-mkdir -p /tmp/keystone-schemas
-rm -f "/tmp/keystone-schemas/$INIT_VERSION-*.sql"
-
-#
-# functions
-#
-
-function sync () {
-    DB_URL=$1
-
-    python keystone/common/sql/legacy_migrations/expand_repo/manage.py version_control \
-      --database "$DB_URL" \
-      --version "$INIT_VERSION" \
-      --repository keystone/common/sql/legacy_migrations/expand_repo/
-    python keystone/common/sql/legacy_migrations/data_migration_repo/manage.py version_control \
-      --database "$DB_URL" \
-      --version "$INIT_VERSION" \
-      --repository keystone/common/sql/legacy_migrations/data_migration_repo/
-    python keystone/common/sql/legacy_migrations/contract_repo/manage.py version_control \
-      --database "$DB_URL" \
-      --version "$INIT_VERSION" \
-      --repository keystone/common/sql/legacy_migrations/contract_repo/
-
-    python keystone/common/sql/legacy_migrations/expand_repo/manage.py upgrade \
-      --database "$DB_URL" \
-      --repository keystone/common/sql/legacy_migrations/expand_repo/
-    python keystone/common/sql/legacy_migrations/data_migration_repo/manage.py upgrade \
-      --database "$DB_URL" \
-      --repository keystone/common/sql/legacy_migrations/data_migration_repo/
-    python keystone/common/sql/legacy_migrations/contract_repo/manage.py upgrade \
-      --database "$DB_URL" \
-      --repository keystone/common/sql/legacy_migrations/contract_repo/
-}
-
-#
-# sqlite
-#
-
-# cleanup from previous runs
-
-rm -f /tmp/keystone.db
-
-# sync schema
-
-sync 'sqlite:////tmp/keystone.db'
-
-# dump the schema
-
-sqlite3 /tmp/keystone.db << EOF
-.output "/tmp/keystone-schemas/${INIT_VERSION}-sqlite.sql"
-.schema
-.quit
-EOF
-
-rm -f /tmp/keystone.db
-
-#
-# mysql
-#
-
-# cleanup from previous runs
-
-mysql -u keystone -ppassword << EOF
-DROP DATABASE IF EXISTS keystone;
-CREATE DATABASE keystone;
-EOF
-
-# sync schema
-
-sync 'mysql+pymysql://keystone:password@localhost/keystone'
-
-# dump the schema
-
-mysqldump --no-data --skip-comments -u keystone -ppassword \
-    keystone > "/tmp/keystone-schemas/${INIT_VERSION}-mysql.sql"
-
-mysql -u keystone -ppassword << EOF
-DROP DATABASE IF EXISTS keystone;
-EOF
-
-#
-# postgres
-#
-
-# cleanup from previous runs
-
-sudo -u postgres dropdb --if-exists keystone
-sudo -u postgres createdb --owner=keystone keystone
-
-# sync to initial version
-
-sync 'postgresql://keystone:password@localhost/keystone'
-
-# dump the schema
-
-pg_dump postgresql://keystone:password@localhost/keystone \
-    --schema-only > "/tmp/keystone-schemas/${INIT_VERSION}-postgres.sql"
-
-sudo -u postgres dropdb --if-exists keystone