add kubernetes engine
diff --git a/metadata/service/server/proxy.yml b/metadata/service/server/proxy.yml
index 4de7a90..628bdc7 100644
--- a/metadata/service/server/proxy.yml
+++ b/metadata/service/server/proxy.yml
@@ -13,6 +13,6 @@
         - host: ${_param:cluster_node01_address}
           name: ${_param:cluster_node01_hostname}
         - host: ${_param:cluster_node02_address}
-          name: ${_param:cluster_node02_hostname}          
+          name: ${_param:cluster_node02_hostname}
         - host: ${_param:cluster_node03_address}
           name: ${_param:cluster_node03_hostname}
\ No newline at end of file