Update devstack doc

Add a sample local.conf file for freezer developer.

Change-Id: If0f7d8322de39881963af760c0670d5225a1a47d

devstack/README.rst

@@ -19,20 +19,42 @@ For example::
 
 
 The plugin makes use of apache2 by default.
-To use the uwsgi server set the following environment variable:
+To use the uwsgi server set the following environment variable::
 
-export FREEZER_API_SERVER_TYPE=uwsgi
+    export FREEZER_API_SERVER_TYPE=uwsgi
 
 The default port is 9090. To configure the api to listen on a different port
 set the variable FREEZER_API_PORT.
-For example to make use of port 19090 use:
+For example to make use of port 19090 use::
 
-export FREEZER_API_PORT=19090
+    export FREEZER_API_PORT=19090
 
 The plugin makes use of elasticsearch as db backend by default.
-To use the sqlachemy set the following environment variable:
+To use the sqlachemy set the following environment variable::
 
-export FREEZER_BACKEND='sqlalchemy'
+    export FREEZER_BACKEND='sqlalchemy'
+
+This is a sample local.conf file for freezer developer::
+    
+    [[local|localrc]]
+    ADMIN_PASSWORD=stack
+    DATABASE_PASSWORD=stack
+    RABBIT_PASSWORD=stack
+    SERVICE_PASSWORD=$ADMIN_PASSWORD
+
+    DEST=/opt/stack
+    LOGFILE=$DEST/logs/stack.sh.log
+    
+    # only install keystone/horizon/swift in devstack
+    # disable_all_services
+    # enable_service key mysql s-proxy s-object s-container s-account horizon
+
+    enable_plugin freezer http://git.openstack.org/openstack/freezer master
+    enable_plugin freezer-api http://git.openstack.org/openstack/freezer-api.git master
+    enable_plugin freezer-tempest-plugin http://git.openstack.org/openstack/freezer-tempest-plugin.git master
+    enable_plugin freezer-web-ui http://git.openstack.org/openstack/freezer-web-ui.git master
+    
+    export FREEZER_BACKEND='sqlalchemy'
 
 For more information, see:
- https://docs.openstack.org/devstack/latest/plugins.html
+ https://docs.openstack.org/devstack/latest/index.html