tripleo-heat-templates/releasenotes/notes/direct-deploy-by-default-bc...

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---
upgrade:
- |
Ironic in the containerized undercloud now uses the ``direct`` deploy
interface by default for better performance and scalability. See
`the direct deploy documentation
<https://docs.openstack.org/ironic/latest/admin/interfaces/deploy.html#direct-deploy>`_
for details.
If undesired, this change can be reverted per node by setting the node's
``deploy_interface`` field to ``iscsi`` or globally by changing the new
``IronicDefaultDeployInterface`` to empty string.