github-actions-demo.yml

name: CI
on: 
  - push
jobs:
  ubuntu_wget_opam:
    strategy:
      matrix:
        opam_version:
          - "2.1.6"
          - "2.2.0"
        ocaml_version:
          - "4.14.2"
          - "5.2.0"
      fail-fast: false
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
      - name: Build image
        uses: docker/build-push-action@v6
        with:
          context: "./ubuntu_wget_opam"
          build-args: |
            OPAM_VERSION=${{ matrix.opam_version }}
            OCAML_VERSION=${{ matrix.ocaml_version }}
  alpine_wget_opam:
    strategy:
      matrix:
        opam_version:
          - "2.1.6"
          - "2.2.0"
        ocaml_version:
          - "4.14.2"
          - "5.2.0"
      fail-fast: false
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
      - name: Build image
        uses: docker/build-push-action@v6
        with:
          context: "./alpine_wget_opam"
          build-args: |
            OPAM_VERSION=${{ matrix.opam_version }}
            OCAML_VERSION=${{ matrix.ocaml_version }}
  alpine_repos_opam:
    strategy:
      matrix:
        ocaml_version:
          - "4.14.2"
          - "5.2.0"
      fail-fast: false
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
      - name: Build image
        uses: docker/build-push-action@v6
        with:
          context: "./alpine_repos_opam"
          build-args: |
            OCAML_VERSION=${{ matrix.ocaml_version }}