Fleet Custom Logs Ingest Pipeline

We're trying to ingest a custom log using the custom log integration in Fleet. Is there a way to push thins custom log through an ingest pipeline so that we can parse out the custom fields in the message field using grok patterns?

It is possible, I have an open PR for the docs here: [Elastic Agent] Add docs for custom ingest pipeline and template by ruflin · Pull Request #23247 · elastic/beats · GitHub The experience is not great yet but we plan to improve it in the future. Let me know if the docs / PR does not answer the above.