Elasticsearch offers various processors configurable within the ingest pipelinesallowing you to perform transformations over the data. In this write-up, I will use the Set processor https://www.elastic.co/guide/en/elasticsearch/reference/current/set-processor.html to enrich the Wazuh alerts indices. Use case: Add a flag/field to distinguish between servers in different data centers, knowingthat each data center has servers with unique Operating System.…