On 01/15/2014 07:59 PM, Devananda van der Veen wrote:
Hi all,
Some months back, there was discussion to move Ironic to use Alembic
instead of SqlAlchemy. At that time, I was much more interested in
getting the framework together than I was in restructuring our database
migrations, and what we had was sufficient to get us off the ground.
Now that the plumbing is coming together, and we're looking hopefully at
doing a release this cycle, I'd like to see if anyone wants to pick up
the torch and switch our db migrations to use alembic.. Ideally, let's
do this between the I2 and I3 milestones.
I am aware of the work adding a transition-to-alembic to Oslo:
https://review.openstack.org/#/c/59433/
I feel like we don't necessarily need to wait for that to land. There's
a lot less history in our migrations than in, say, Nova; we don't yet
support down-migrations anyway; and there aren't any prior releases of
the project which folks could upgrade from.
Since Ironic is just now hitting feature parity, I'm pretty sure there
are no production deployments of it (or even long-running test
deployments) I say make a clean break before the I3 milestone and
consider that the "must always upgrade cleanly from here" place.
But I'm probably crazy.
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