build-image.yml

name: Build docker image for package building

on:
  workflow_dispatch: {}
  push:
    branches:
      - main
    paths:
      - "buildroot/**"

jobs:
  build:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        target: [amd64, amd64_small, aarch64, aarch64_small]
    steps:
      - uses: actions/checkout@v4

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3

      - name: Login to Docker Hub
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

      - name: Build and push
        uses: docker/bake-action@v4
        with:
          push: true
          workdir: buildroot
          targets: ${{ matrix.target }}
          set: |
            *.cache-to=type=registry,ref=ghcr.io/fortefibre/buildroot-${{ matrix.target }}-cache,mode=max
            *.cache-from=type=registry,ref=ghcr.io/fortefibre/buildroot-${{ matrix.target }}-cache

  pull:
    runs-on: GPU
    needs: build
    steps:
      - name: Pull latest images
        run: |
          docker pull ghcr.io/fortefibre/buildroot:humble-amd64
          docker pull --platform linux/arm64/v8 ghcr.io/fortefibre/buildroot:humble-aarch64
          docker system prune -f