Add settings for Kerberized Kafka cluster

[rahulsinghai]

No description provided.

[rahulsinghai]

I have opened a PR #104 for this.

[danielwegener]

Thanks and sorry for the late reply. I have never used kafka with kerberos configuration. Is there any official kafka producer documentation you followed to set up the sasl client configuration? Is it just setting these java properties in the PR?

[anuragshammi]

@rahulsinghai - I am trying to implement this appender with an application deployed on IBM Websphere application server but unable to send messages to Kafka brokers, however same configuration works well in local development environment where I am using a lighter version of websphere which is Liberty server.
Also I am unable to see any error log messages for this issue.
Would you know if there are any properties required to be configured specifically for websphere application server?