Pentaho PDI + ElasticSearch – Create a simple ETL

Create an ETL that inserts a JPG, PNG, TIF or PDF image into an ElasticSearch field.

Today we use PHP to upload the image and write it within ElasticSearch.

I need ETL to take any file and insert it into the ElasticSearch index.

Simple. I just need the writing mechanism and I will adjust the ETL to my needs.