Thanks for surfacing this @erik-lonroth.
- The loki charm has config options for ingestion limit and retention period.
- Size-based retention is something many people are interested in, but it was difficult to implement (1, 2).
- Check out the sizing guide.
- Promtail has a drop directive, and we can try to think how to expose it in the charm. Suggestions welcome!
- Haven’t seen yet if dropping is possible on the receiving side (loki)
- See also info about the REST endpoint for manual deletion