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---
upgrade:
- |
Due to upcoming changes in the way Nova schedules bare metal nodes, all
nodes in a deployment using Nova have to get the ``resource_class`` field
populated before the upgrade. See `enrollment documentation
<https://docs.openstack.org/ironic/latest/install/enrollment.html#enrollment-process>`_
and `flavor configuration documentation
<https://docs.openstack.org/ironic/latest/install/configure-nova-flavors.html#scheduling-based-on-resource-classes>`_
for details.
Once you've migrated your flavors to resource classes, you should unset
the deprecated ``use_baremetal_filters`` option in the Compute service
configuration. Otherwise you'll be using the filters incompatible with
scheduling based on resource classes.
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