--- deprecations: - | The `IronicHostManager` is now deprecated along with the ``[scheduler]/host_manager`` option of ``ironic_host_manager``. As of the 16.0.0 Pike release, the ``ExactRamFilter``, ``ExactCoreFilter``, and ``ExactDiskFilter`` scheduler filters are all deprecated along with the ``[scheduler]/use_baremetal_filters`` and ``[scheduler]/baremental_enabled_filters`` options. Deployments should migrate to using resource classes with baremetal flavors as described in the ironic install guide: https://docs.openstack.org/ironic/latest/install/configure-nova-flavors.html#scheduling-based-on-resource-classes