remove keepalived_vip_priority default value
diff --git a/metadata/service/cluster/single.yml b/metadata/service/cluster/single.yml
index aa5098b..a1a6c49 100644
--- a/metadata/service/cluster/single.yml
+++ b/metadata/service/cluster/single.yml
@@ -4,7 +4,6 @@
 - service.keepalived.support
 parameters:
   _param:
-    keepalived_vip_priority: 100
     keepalived_vip_virtual_router_id: 100
     keepalived_vip_password: password
     keepalived_vip_interface: eth0