So recently I needed to this up for a very simple flask app. We're running otel-collector-contrib, jaeger-all-in-one, and prometheus on a single server with docker compose (has to be all within the corpo intranet for reasons..)

Traces work, and I have the spanmetrics exporter set up, and I can actually see the spanmetrics in prometheus if I query directly, but they won't show up in the jaeger "monitor" tab, no matter what I do.

I spent 3 days on this before my boss is like "why don't we just manually instrument and send everything to the SQL server and create a grafana dashboard from that" and agh I don't want to do that either.

Any advice? It's literally the simplest usecase but I can't get it to work. Should I just add grafana to the pile?