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.. _nova-apiv21:

.. list-table:: Description of API v2.1 configuration options
   :header-rows: 1
   :class: config-ref-table

   * - Configuration option = Default value
     - Description
   * - **[osapi_v21]**
     -
   * - ``extensions_blacklist`` =
     - (List) DEPRECATED: This option is a list of all of the v2.1 API extensions to never load. However, it will be removed in the near future, after which all the functionality that was previously in extensions will be part of the standard API, and thus always accessible.

       Possible values:

       * A list of strings, each being the alias of an extension that you do not wish to load.

       Related options:

       * enabled

       * extensions_whitelist
   * - ``extensions_whitelist`` =
     - (List) DEPRECATED: This is a list of extensions. If it is empty, then *all* extensions except those specified in the extensions_blacklist option will be loaded. If it is not empty, then only those extensions in this list will be loaded, provided that they are also not in the extensions_blacklist option. Once this deprecated option is removed, after which the all the functionality that was previously in extensions will be part of the standard API, and thus always accessible.

       Possible values:

       * A list of strings, each being the alias of an extension that you wish to load, or an empty list, which indicates that all extensions are to be run.

       Related options:

       * enabled

       * extensions_blacklist
   * - ``project_id_regex`` = ``None``
     - (String) DEPRECATED: This option is a string representing a regular expression (regex) that matches the project_id as contained in URLs. If not set, it will match normal UUIDs created by keystone.

       Possible values:

       * A string representing any legal regular expression