---
features:
  - |
    Adds version 1.33 of the REST API, which exposes the ``storage_interface``
    field of the node resource. This version also exposes
    ``default_storage_interface`` and ``enable_storage_interfaces`` fields
    of the driver resource.

    There are 2 available storage interfaces:

    * ``noop``: This interface provides nothing regarding storage.

    * ``cinder``: This interface enables a node to attach and detach volumes
      by leveraging cinder API.

    A storage interface can be set when creating or updating a node. Enabled
    storage interfaces are defined via the
    ``[DEFAULT]/enabled_storage_interfaces`` configuration option. A default
    interface for a created node can be specified with
    ``[DEFAULT]/default_storage_interface`` configuration option.