DevOps Handler
==============

This Handler is designed to retrieve vhost configuration from the website
itself, not from LL:NG configuration. Rules and headers are set in a
**rules.json** file stored at the website root directory (ie
``http://website/rules.json``). This file looks like:

.. code-block:: json

   {
     "rules": {
       "^/admin": "$uid eq 'admin'",
       "default": "accept"
     },
     "headers": {
       "Auth-User": "$uid"
     }
   }

If this file is not found, the default rule "accept" is applied and just
"Auth-User" header is sent (Auth-User => $uid).

No specific configuration is required except that:

-  you have to choose this specific handler (directly by using
   ``VHOSTTYPE`` environment variable or in VHost options)
-  you can set the loopback URL needed by the DevOps handler to get
   ``/rules.json`` or use ``RULES_URL`` parameter to set JSON file path
   (see :doc:`SSO as a Service<ssoaas>`). Default to
   ``http://127.0.0.1:<server-port>``


.. attention::

    Note that DevOps handler will not compile
    rules.json if :doc:`Safe Jail<safejail>` is not enabled.

See :doc:`SSO as a Service<ssoaas>` for more.