Hi!  I need to configure an external client for kafka, using keytab. At the moment, there is an existing external client which authenticate in kafka using this command -Djava.security.auth.login.config=jaas.conf" in a spark-submit. This jaas.conf file is on a local path of the client, thus leaving me confused. The content of this jaas.conf file is just like this (with imaginary names):   KafkaClient { com.sun.security.auth.module.Krb5LoginModule required useKeyTab=true keyTab="/etc/security/keytabs/storm.service.keytab" storeKey=true useTicketCache=false serviceName="kafka" principal="storm@EXAMPLE.COM"; };    Is it this deployment right? If yes, how should I configure another client?    ... View more