I am processing kafka events and sending them to ES. I tag events so that I can tell which kafka topic they were from. I then use the tag in the output to direct events from different kafka topics to different ES indexes.
However, beyond their use in Logstash, I do not wish to send the tags to ElasticSearch and have to see them in Kibana. Is there any way to use the tags in logstash but prevent them from being sent to ES?