Revert "Default to keystone auth strategy"

There seem to be some issues with this in instack. The 
investigation is ongoing and this change will be reinstated once 
the problem is resolved.

This reverts commit 1adfb6ccd46471bba14b007b3364bb1d8a5ffd04.

Change-Id: I65502784bfc5d874f4bf3b74f1370fb9f8bb54bd

doc/source/install.rst

@@ -181,10 +181,11 @@ loaded roles.
 Keystone Configuration
 ----------------------
 
-By default, Tuskar is configured to authenticate with Keystone
-for REST API calls. For development, Keystone authentication can
-be disabled by updating the ``tuskar.conf`` and changing the
-``auth_strategy`` to equal ``noauth ``.
+By default, Tuskar is configured to skip authentication for REST
+API calls. Keystone authentication can be enabled by making the
+appropriate changes to the ``tuskar.conf`` file as described in
+the `keystone documentation <http://docs.openstack.org/developer/
+keystone/configuringservices.html>`_
 
 
 Contributing

etc/tuskar/tuskar.conf.sample

@@ -29,8 +29,8 @@
 # Options defined in tuskar.api.app
 #
 
-# Method to use for auth: keystone or noauth. (string value)
-#auth_strategy=keystone
+# Method to use for auth: noauth or keystone. (string value)
+#auth_strategy=noauth
 
 
 #

tuskar/api/app.py

@@ -25,8 +25,8 @@ from tuskar.api import renderers
 auth_opts = [
     cfg.StrOpt(
         'auth_strategy',
-        default='keystone',
-        help='Method to use for auth: keystone or noauth.'),
+        default='noauth',
+        help='Method to use for auth: noauth or keystone.'),
 ]
 
 CONF = cfg.CONF