Setting up a Hetzner ARM runner

[Stefterv]

For the gradle transition we need a arm64 based GitHub Actions runner. This is coming soon™ to GitHub Action but is not here yet.

For now I propose we set up a self-hosted runner on Hetzner as they offer a really cheap VPS €3.92/mo.

Instructions

• Go to: https://console.hetzner.cloud/ setup an account etc...
• Create a new server
  • Location: doesn't matter
  • Image: Ubuntu 24
  • Type: Arm64 Ampere, Lowest Tier (CAX11)
  • Network: Disable ipv4, we only connect to GitHub
  • SSH Key: copy your public key here
  • Name: can be default or something more recognisable
• SSH into the machine
  • I used this script to setup some of the defaults: https://www.digitalocean.com/community/tutorials/automating-initial-server-setup-with-ubuntu-18-04
  • passwd $USER to setup the password for the user you set up with the script above
  • apt update && apt install fakeroot binutils install some of the missing dependencies
• Log into the newly created user
• Follow the usual runner setup on GitHub

[Stefterv]

Turns out coming soon was tomorrow… Well these instructions are there for a potential future

[SableRaf]

Turns out coming soon was tomorrow… Well these instructions are there for a potential future

So this means, since GitHub Actions now support Linux Arm64, we don't need a custom runner to build on RPi anymore. And we don't need Hetzner as a workaround either.

Did I get that right?

[Stefterv]

We won't need the raspberry pi's any more as soon as we deprecate the arm32 build of Processing and for the new Gradle based system we need a Linux arm64 runner where we were using a macOS arm64 runner before. This is luckily now provided by Github