wrap ports into variables to provide common var-style

Change-Id: I4bd7240b0eb31c3ac93f2a2170e4c34463089421
diff --git a/docker/swarm/stack/rundeck.yml b/docker/swarm/stack/rundeck.yml
index 0710819..8ab0554 100644
--- a/docker/swarm/stack/rundeck.yml
+++ b/docker/swarm/stack/rundeck.yml
@@ -18,7 +18,7 @@
                 restart_policy:
                   condition: any
               ports:
-                - 14440:4440
+                - ${_param:haproxy_rundeck_exposed_port}:${_param:haproxy_rundeck_bind_port}
               volumes:
                 - /srv/volumes/rundeck/etc/framework.properties:/etc/rundeck/framework.properties
                 - /srv/volumes/rundeck/etc/tokens.properties:/etc/rundeck/tokens.properties
@@ -32,4 +32,4 @@
           network:
             default:
               external:
-                name: oss_backend
\ No newline at end of file
+                name: oss_backend