Greetings,
Forgive my alembic ignorance. I am writing some vender specific code that wants
to create new DB tables for neutron. I have read the
neutron/db/migration/README file, but still have something unclear.
My current understanding is that for DB tables creation, I have to do
"something" with neutron/db/migration/ .
What I have done were:
- Copied neutron/db/migration/alembic.ini to $my_plugin_directory
- Ran `neutron-db-manage --config-file /etc/neutron/neutron.conf --config-file
$my_plugin_directory/alembic.ini revision -m "my plugin init ops"
--autogenerate`. This autogenerate command generated a
neutron/db/migrations/alembic_migrations/versions/
ee78798e4af_my_plugin_init_ops.py file. But this file is completely irrelevant
with my targeted changes. So I replaced the upgrade() method with the DB table
creation code.
- Then ran `neutron-db-manager upgrade` to upgrade to revision ee78798e4af
manually, I saw the tables were created.
So the questions are:
* there are scripts in neutron/db/migration/alembic_migrations/ that without a
revision prefix, like l3_init_ops.py, they are not in the "versions" directory.
What are they for?
* Should I just keep the "ee78798e4af_my_plugin_init_ops.py" file? Seems the
metadata files are no longer usable.
* I assume if the revision file ("ee78798e4af_my_plugin_init_ops.py" in my
case) is already there before devstack is started, the new tables will be
created by devstack as other tables, right?
* Anything what I did wrong or missing?
Thanks,
Rui Zang
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