From 805d9f22ce61f9888aab162bcfe5f1fc62c49c2e Mon Sep 17 00:00:00 2001
From: jwfang <54740235@qq.com>
Date: Mon, 24 Jul 2017 19:11:41 +0800
Subject: [PATCH] note upgrade from non-RBAC not supported

---
 docs/vars.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/vars.md b/docs/vars.md
index a14ce08c0..537aa5753 100644
--- a/docs/vars.md
+++ b/docs/vars.md
@@ -71,7 +71,7 @@ following default cluster paramters:
 https://kubernetes.io/docs/admin/authorization/#using-flags-for-your-authorization-module)
   that the cluster should be configured for. Defaults to `[]` (i.e. no authorization).
   Note: `RBAC` is currently in experimental phase, and do not support either calico or
-  vault.
+  vault. Upgrade from non-RBAC to RBAC is not tested.
 
 Note, if cloud providers have any use of the ``10.233.0.0/16``, like instances'
 private addresses, make sure to pick another values for ``kube_service_addresses``