template-ify the juju config for cord and opencloud cases
diff --git a/roles/juju-setup/defaults/main.yml b/roles/juju-setup/defaults/main.yml
index cd21505..bbbb92e 100644
--- a/roles/juju-setup/defaults/main.yml
+++ b/roles/juju-setup/defaults/main.yml
@@ -1,2 +1,6 @@
 ---
 
+juju_config_name: opencloud
+juju_config_path: /usr/local/src/juju_config.yml
+
+charm_versions: {}