How to change the idle connection timeout in axum/hyper?

[kobe2000]

Summary

I keep getting 502 http code occasionally when I put an axum application behind treafik, I guess that it may because of the timeout for idle connection. (aka keepalive_timeout of nginx)

I noticed that hyper has an header_read_timeout config which has default value of 30 seconds. I have no idea if it is effective and how to set it under axum.

Please help, thank you.

axum version

0.7.6

[jplatte]

See #2939, which is for another hyper server setting. The same answer applies here.