Hi,

Specifically, this line right at the start of user-data: https://github.com/philips-labs/terraform-aws-github-runner/blob/58bfec0f1a3ee7a55054f1e7ebd77e0ee156c04a/modules/runners/templates/user-data.sh#L2
interferes quite significantly with the normal expected output of /var/log/cloud-init-output.log, and also makes cloudinit think that userdata is finishing much faster than it actually is, as it uses stdout as an indicator of when a script has finished running. With that line in place, userdata finishes in ~6 seconds, even though the rest of my userdata takes a further 90 or so seconds to complete.

This means we're getting not-fully-provisioned hosts starting github actions jobs, which is causing some undesired behaviour.

As part of #1956 I made the user_data gzipped, I could add to this PR to make the file descriptor changes optional or remove it entirely if cloud-init-output.log is good enough for most debugging tasks? (the output of cloudinit is streamed to the console anyway, so right clicking ec2 -> view logs will still show the output even if you don't have this exec in place)

Cheers