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Flux GitHub runners

How to provision GitHub Actions self-hosted runners for Flux conformance testing.

ARM64 Instance specs

In order to add a new runner to the GitHub Actions pool, first create an instance on Oracle Cloud with the following configuration:

OS: Canonical Ubuntu 20.04
Shape: VM.Standard.A1.Flex
OCPU Count: 2
Memory (GB): 12
Network Bandwidth (Gbps): 2
Local Disk: Block Storage Only

Note that the instance image source must be Canonical Ubuntu instead of the default Oracle Linux.

ARM64 Instance setup

SSH into a newly created instance

ssh ubuntu@<instance-public-IP>

Create the action runner dir

mkdir -p actions-runner && cd actions-runner

Download the provisioning script

curl -sL https://raw.githubusercontent.com/fluxcd/flux2/main/.github/runners/arm64.sh > arm64.sh \
  && chmod +x ./arm64.sh

Retrieve the GitHub runner token from the repository settings page
Run the provisioning script passing the token as the first argument

sudo ./arm64.sh <TOKEN>

Reboot the instance

sudo reboot

Navigate to the GitHub repository runners page and check the runner status