enable sphinx doc
diff --git a/metadata/service/control/cluster_control.yml b/metadata/service/control/cluster_control.yml
index 9b65ff9..b7367ba 100644
--- a/metadata/service/control/cluster_control.yml
+++ b/metadata/service/control/cluster_control.yml
@@ -1,5 +1,7 @@
 applications:
 - cinder
+classes:
+- service.cinder.support
 parameters:
   cinder:
     controller: