Forgejo-Runner

This is a minor modifyed version of ghcr.io/catthehacker/ubuntu:act-22.04. It houses the forgejo-runner binary and executes it on startup with "daemon".

This runner needs dind to execute docker commands in a secured environment.

services:
  docker-in-docker:
    image: docker:dind
    container_name: "docker_dind"
    hostname: docker
    privileged: "true"
    command: ["dockerd", "-H", "tcp://0.0.0.0:2375", "--tls=false"]
    restart: "unless-stopped"

  pika-runner:
    image: pika-runner:latest
    depends_on:
      - docker-in-docker
    environment:
      DOCKER_HOST: "tcp://docker:2375"
    volumes:
      - ./config:/home/runner

Now run docker compose run --rm pika-runner forgejo-runner register

You should be asked to input your forgejo url like https://git.k4li.de/, your runner token, which you aquire in admin mode when adding runners. Then it askes for the label to use. In my case, this label works perfectly fine for me self-hosted:host://-self-hosted

After this, you can successfully build docker images, and use almost every github actions workflow you like. INSIDE DOCKER!!

example workflow that works:

[!INFO] This is my workflow to push my modifyed caddy container to my registry

name: Build and Push to Forgejo Registry

on:
  push:
    branches: [main]

jobs:
  checkout:
    runs-on: self-hosted
    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Login to Forgejo Container Registry
        uses: docker/login-action@v3
        with:
          registry: git.k4li.de
          username: ${{ vars.FORGEJO_USERNAME }}
          password: ${{ vars.FORGEJO_PASSWORD }}
      - name: Build n Push
        run: |
          docker build -t git.k4li.de/docker/caddy:latest .
          docker push git.k4li.de/docker/caddy:latest