title: Use filebeat to ingest JSON log file
body: <p>So I have a log file that each line of it is a json object.
  I want to be able to send this log files directly to elasticsearch, and then hopefully elastic would ingest the data.</p>
  
  <p>I'm pretty sure I need to declare a specific template for this. However, I'm not sure how, and would be happy to have some guidance of how to do it right.</p>