Rationale behind default HTTP Port 80

[martialblog]

Hi,

I was just curious about the default HTTP port being set to 80:

f.IntVar(&c.Server.HTTPListenPort, "server.http-listen-port", 80, "HTTP server listen port.")

Is there any reason behind this? Generally this is considered a privileged port, which I don't see for an application like Tempo.

Obviously this does not matter that much, since port 3200 is set in most of the configuration and the packages provided by Grafana Labs, but still wouldn't it be simpler to just have the default 3200?

Also, when looking at Mimir and Tempo, the default HTTP ports don't have a pattern, right? I'm strictly speaking Golang code, not additional configuration:

• Mimir HTTP port default: 8080
• Loki HTTP port default: 3100
• Tempo HTTP port default: 80

Personally, I would expect them to either all have the same port (I think this is the case for gRPC and Gossip ports) or to have something like 3100, 3200, 3300 (given that the grafana-server uses 3000 by default).

Thanks
Markus

[mapno]

Hi @martialblog. You bring a good point. I don't think there's a good explanation besides it's been carried over since the beginning of the project. It would make sense to be changed to 3200. Would you be up for that change?

[martialblog]

Hey, thanks for the quick reply.

I can have a look at it and open a PR.

[martialblog]

Open this PR #4960