quipper/actions-runner

This is a container image extending actions/runner.

For maintainability and security,

• Align to the official image
• Keep the script simple
• Do not add extra packages

Features

We extend the official image for the following issues:

• Run both runner and Dockerd in same container for the resource efficiency of Kubernetes nodes. This image starts Dockerd under docker-init.
• Add some essential packages such as git
• Support Ubuntu 20.04 runner for backward compatibility
• Run a job on both amd64 and arm64 nodes. This repository provides a multi-architectures image. (community#56720) (resolved by actions/runner#2601)
• Support ruby/setup-ruby which does not support Debian. This image is based on Ubuntu. (actions-runner-controller#2610) (resolved by actions/runner#2651)
• Add a hosted tool cache for actions/setup-node (#160) (resolved by actions/setup-node#857)
• Automatically set the cloud-local APT sources to reduce time of apt-get (#432)

We are looking for the official supports, but need to maintain our custom image for now.

Release

When a new version of actions/runner is released,

1. Renovate creates a pull request to update a dependency
2. Renovate automatically merges it
3. GitHub Actions builds an image and runs the E2E test
4. GitHub Actions adds the tag of runner version, such as 2.304.0, to the tested image
5. GitHub Actions creates a release corresponding to the runner version, if not exists

When a change is pushed into the main branch, the tag of runner version is overwritten by the new image. Pin the image digest, such as ghcr.io/quipper/actions-runner:2.304.0@sha256:.... Renovate will update the digest.