How to reduce the time it takes to propagate DNS?

Questions / Help
1

It appears that from the time that the app is launched and is passing all readiness checks, to the time it is accessible through the public URL, there is a delay of ~3 minutes.

Since the app is already running, I am assuming the delay is the time takes to propagate DNS records.

curl https://foo-1bcc73b2.fly.dev
curl: (6) Could not resolve host: foo-1bcc73b2.fly.dev

Is there a quick way to connect to the application? Doesn’t even need to be public Internet.

2

edit: Surprising DNS propagation is still slow enough to matter (despite recent improvements). Per this thread, may be bluegreen deployment strategy with 3+ VMs might help: how do fly.io deploys work? - #9 by jsierles

You could connect to the VM over 6pn which (apparently) may have faster propagation (see), but may also be down at times (ex), and come with gotchas (like).

Refs:

  1. using Wireguard / connecting to a port on an app
  2. Specify instance-id in fly-replay header - #10 by ignoramous
  3. How to copy files off a VM - #8 by CabelloMania