container-build.yaml

name: "Container Build"

on:
  workflow_dispatch: # needed for manually running this workflow
  schedule:
    - cron: "15 3 * * *" # sadly there is no TZ support here

permissions:
  contents: read
  packages: write

jobs:
  build:
    runs-on: ubuntu-latest
    timeout-minutes: 60
    container:
      image: moby/buildkit:latest
      options: --privileged
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
      - name: Build container
        run: |
          # registry credentials
          export DOCKER_CONFIG="$(pwd)/container"
          echo "{\"auths\":{\"ghcr.io\":{\"auth\":\"$(echo -n ${{ github.actor }}:${{ secrets.GITHUB_TOKEN }} | base64 -w 0)\"}}}" > $DOCKER_CONFIG/config.json
          # ugly workaround for converting content of $GITHUB_REPOSITORY (= `MagicMirrorOrg/MagicMirror-3rd-Party-Modules`)
          REPO="$(echo $GITHUB_REPOSITORY | tr '[:upper:]' '[:lower:]')"
          # build
          buildctl-daemonless.sh build \
            --progress plain \
            --frontend=dockerfile.v0 \
            --local context=. \
            --local dockerfile=container \
            --output type=image,"\"name=ghcr.io/${REPO}:${{ github.ref_name }}\",push=true"