nova/releasenotes/notes/ironic_offline_flavor_migration-4845307799f0e24e.yaml
Dan Smith 8f8982d8ef Add nova-manage db command for ironic flavor migrations
This adds `nova-manage db ironic_flavor_migration` which allows
pushing the migrations ahead of time, and without ironic or nova
services running.

This is a similar operation to online_data_migrations, but there is
a need to pass data that would normally be retrieved from ironic.
However, we want this to work offline and thus that data must be
provided locally. When fast-forwarding through the pike release,
ironic and nova-compute will never be started and thus we can't rely
on the online nature of the migration integrated into the ironic
driver.

Change-Id: I459bce472227ee08230d3120d9e2eb1bde635218
2017-09-15 00:30:23 -04:00

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The ironic driver will automatically migrate instance flavors for resource classes
at runtime. If you are not able to run the compute and ironic services at pike because
you are automating an upgrade past this release, you can use the
``nova-manage db ironic_flavor_migration`` to push the migration manually. This is only
for advanced users taking on the risk of automating the process of upgrading through
pike and is not recommended for normal users.