instack-undercloud/releasenotes/notes/resource-class-init-e11b6a6...

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---
upgrade:
- |
This release replaces node scheduling based on properties (CPU count,
memory and disk) with scheduling based on *custom resource classes*.
As part of this change during the upgrade:
* The ``resource_class`` field is set to ``baremetal``, if empty.
* The standard flavors are adjusted to request one instance of the
``baremetal`` resource class and to **not** request the standard
properties. Flavors that already have a resource class attached are
not changed.
All non-standard custom flavors have to be changed in a similar way.
See the `ironic flavor documentation
<https://docs.openstack.org/ironic/latest/install/configure-nova-flavors.html#scheduling-based-on-resource-classes>`_
for details.