A collection of random notes and gotcha’s I’ve found as I’ve been using Fly.io. For more info on my thoughts on Fly.io you can read A Year With Fly and Developer Delight

Flycast URLs should use internal binding not bind to local6pn

Private Networking

The service itself can bind to its own port by using fly-local-6pn:port

So in the case of honcho when tutor-gpt wants to hit the honcho api it will select http://honcho.flycast

CLI

The change the number of machines or temporarily bring down a service you can use the below command.

To bring down the service just make the number 0

fly scale count {num} -a {app name} -g {process group}