Every pod has its own IP so a maximum of

one zk connection per pod should be sufficient in Kubernetes.

I'm adding this config because it's represented in
https://github.com/apache/kafka/blob/2.1/config/zookeeper.properties

Author: solsson

zookeeper/10zookeeper-config.yml

@@ -20,6 +20,7 @@ data:
     dataDir=/var/lib/zookeeper/data
     dataLogDir=/var/lib/zookeeper/log
     clientPort=2181
+    maxClientCnxns=1
     initLimit=5
     syncLimit=2
     server.1=pzoo-0.pzoo:2888:3888:participant