From 834e2dd3a638dd554c9070859849521f98165111 Mon Sep 17 00:00:00 2001
From: Tomas Barton <barton.tomas@gmail.com>
Date: Mon, 12 Aug 2019 14:50:43 +0200
Subject: [PATCH] don't change config on empty white list

---
 templates/conf/zoo.cfg.erb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/templates/conf/zoo.cfg.erb b/templates/conf/zoo.cfg.erb
index d77551d..d9e1917 100644
--- a/templates/conf/zoo.cfg.erb
+++ b/templates/conf/zoo.cfg.erb
@@ -131,7 +131,7 @@ kerberos.removeRealmFromPrincipal=true
 <% end -%>
 <% end -%>
 
-<% if scope.lookupvar("zookeeper::whitelist_4lw") -%>
+<% unless scope.lookupvar("zookeeper::whitelist_4lw").empty? -%>
 # Supported since 3.4.10
 4lw.commands.whitelist=<%= scope.lookupvar("zookeeper::whitelist_4lw").join(',') %>
 <% end -%>
\ No newline at end of file