Emit requestCrawl automatically?

[DavidBuchanan314]

At this point several millipds users have set up an instance and had it "not work", and the only issue was a lack of requestCrawl.

An automatic requestCrawl on first startup (or every startup?) would alleviate that sharp edge for new users.

However, I'm a bit reluctant to hardcode "the" bluesky pbc relay address, as a matter of principle.

Maybe the real solution is better docs, and/or a federation troubleshooting guide.

[DavidBuchanan314]

oh shit I just had an excellent idea.

I'll make millipds itself:

a) record the address of all recent inbound relay connections
b) listen for inbound requestCrawls. when it receives a requestCrawl, it forwards that request to all the relays it knows about

And then, instead of hardcoding bsky.network as the default requestCrawl target, I can hardcode my own PDS url.

[DavidBuchanan314]

mild problem: we only know the IP of connecting relays (and relay-likes), not necessarily their hostname

[DavidBuchanan314]

I'm upgrading that problem from "mild" to "significant", there's no reliable way to infer a working hostname from the bare IP