name: C/C++ CI docker

on: [push]

jobs:
  build:
    strategy:
      matrix:
        include:
        - os: ubuntu-latest
          dockerfile: Dockerfile.arm64
          label: arm64
        - os: ubuntu-latest
          dockerfile: Dockerfile.rpi
          label: armv6l
        - os: ubuntu-latest
          dockerfile: Dockerfile
          label: amd64

    runs-on: ${{ matrix.os }}
    
    steps:
    - uses: actions/checkout@v1

    - name: Build an image from Dockerfile
      run: docker build -t docker.io/${{ github.repository }}:${{ matrix.label }} -f ${{ matrix.dockerfile }} .