---
features:
  - |
    Adds support for dynamic drivers. Using a dynamic driver in a node's
    ``driver`` field is now possible. Dynamic drivers are composed of a
    ``hardware type`` and a number of ``hardware interfaces``.

    NOTE: this feature is considered somewhat experimental, as not all classic
    drivers have a corresponding dynamic driver, and there is minimal CI
    for dynamic drivers at the time of this writing.

    Hardware types are enabled via the ``[DEFAULT]/enabled_hardware_types``
    configuration option, and hardware interfaces are enabled via the
    ``[DEFAULT]/enabled_*_interfaces`` configuration option. A default
    interface to use when creating or updating nodes can be specified with the
    ``[DEFAULT]/default_*_interface`` configuration option.

    The ironic-conductor process will now fail to start if:

    - a default interface implementation for any enabled hardware type cannot
      be found.
    - a dynamic driver and a classic driver with the same name are both
      enabled.
    - at least one classic driver *or* one dynamic driver is not enabled.

    Hardware types available in this release are:

    - ``ipmi`` for IPMI-compatible hardware.  This type is enabled by default.
      Uses the ``ipmitool`` utility under the hood, similar to existing classic
      drivers ``pxe_ipmitool`` and ``agent_ipmitool``. Supports both types of
      serial console: via ``shellinabox`` and via ``socat``, both are disabled
      by default.

    - ``irmc`` for FUJITSU PRIMERGY servers, disabled by default.

    This feature has a number of REST API changes, all of which are available
    in API version 1.31.

    - Adds additional parameters and response fields for GET /v1/drivers and
      GET /v1/drivers/<name>.

    - Exposes the following fields on the node resource, to allow getting and
      setting interfaces for a dynamic driver:

      * boot_interface
      * console_interface
      * deploy_interface
      * inspect_interface
      * management_interface
      * power_interface
      * raid_interface
      * vendor_interface

    - Allows dynamic drivers to be used and returned in the following
      API calls, in all versions of the REST API:

      * GET /v1/drivers
      * GET /v1/drivers/<name>
      * GET /v1/drivers/<name>/properties
      * GET /v1/drivers/<name>/vendor_passthru/methods
      * GET/POST /v1/drivers/<name>/vendor_passthru
      * GET/POST /v1/nodes/<id>/vendor_passthru

    For more details on the REST API changes, see the `REST API Version History
    documentation
    <http://docs.openstack.org/developer/ironic/dev/webapi-version-history.html>`_.

    This also adds dynamic interface fields to node-related notifications:

    * boot_interface
    * console_interface
    * deploy_interface
    * inspect_interface
    * management_interface
    * power_interface
    * raid_interface
    * vendor_interface

    The affected notifications are:

    * baremetal.node.create.*, new payload version 1.1
    * baremetal.node.update.*, new payload version 1.1
    * baremetal.node.delete.*, new payload version 1.1
    * baremetal.node.maintenance.*, new payload version 1.3
    * baremetal.node.console.*, new payload version 1.3
    * baremetal.node.power_set.*, new payload version 1.3
    * baremetal.node.power_state_corrected.*, new payload version 1.3
    * baremetal.node.provision_set.*, new payload version 1.3