Zammad 6: Opensearch instead of Elasticsearch - Zammad 6 refuses

[sebix]

OpenSearch is made to be compatible with ElasticSearch. It works perfectly fine after setting
compatibility.override_main_response_version: true
With this setting, OpenSearch reports the version number as it would be ES.
Also mentioned here:

Opensearch + Zammad: Version 2.0.0 of configured elasticsearch is not supported

Using this opensearch configuration setting works for me, using Zammad 5.2.1: compatibility.override_main_response_version: true OpenSearch’s documentation for this feature can be found at Agents and ingestion tools - OpenSearch documentation

@fliebe92

I played around with it yesterday evening, but there are some changes needed in the code.

This is an interesting observation because we had it running with Zammad 5 and now it works with Zammad 6. What did you find in your analysis?