Extracting redis keys data

[JKhondhu (Jymit Singh Khondhu)]

I see we have a key param for logstash: https://www.elastic.co/guide/en/logstash/current/plugins-inputs-redis.html#plugins-inputs-redis-key
I don't see one for filebeat: https://www.elastic.co/guide/en/beats/filebeat/master/filebeat-input-redis.html

other ref:

Using Redis key as Elasticsearch index name