Add possibility to pass several servers in zookeeper input

Change-Id: Icff5c808449ca622132f4fd7839a1d7f3ae8b96f
Related-PROD: PROD-21555
diff --git a/telegraf/files/input/zookeeper.conf b/telegraf/files/input/zookeeper.conf
index baaa279..6822ca2 100644
--- a/telegraf/files/input/zookeeper.conf
+++ b/telegraf/files/input/zookeeper.conf
@@ -1,4 +1,4 @@
 [[inputs.zookeeper]]
 {%- include 'telegraf/files/input/_common.conf' %}
-servers = ["{{ values.address|default("127.0.0.1") }}:{{ values.port|default(2181) }}"]
+servers = {{ values.urls | json }}
 {%- include 'telegraf/files/input/_filters.conf' %}