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Created March 30, 2017 11:16
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Notes on LBaaS migration from V1 to V2
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Readme.md

We have to implement the alembic db migration

cd /usr/lib/python2.7/dist-packages/neutron_lbaas/db/migration/alembic_migrations/$

we need a alembic.ini configuration file. What I did is to copy this file from the neutron package:

cp /usr/lib/python2.7/dist-packages/neutron/db/migration/alembic.ini .

At this point we can start a new alembic migration

alembic revision -m "migrate to LBaaSv2"

This will create a new and empty file with the new alembic migration, with the following name:

 versions/<hash>_migrate_to_lbaasv2.py

Where the hash changes every time.

Now append to this file the user contributed script to make the migration from LBaaSv1 and LBaaSv2

 wget -O - https://gist.githubusercontent.com/zioproto/d01596e9c28f930ed811875bc5fce745/raw/38024e85972ab6c932bf23d96171d770a4dda184/openstack-lbaas-database-migration-from-v1-to-v2.py >> alembic_migrations/versions/<hash>_migrate_to_lbaasv2.py

Now you have to check your database tables and hack the script

Check https://review.openstack.org/444930

When the file looks good you can try to run the migration with the command

 neutron-db-manage upgrade heads
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