build.yml

name: Build and Push Docker Images

on:
  push:
  workflow_dispatch:
  # schedule:
  #   - cron: '0 0 * * *' # runs every day at midnight

jobs:
  build-and-push:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        alpine_version:
          - 2.7
          - 3.1
          - 3.2
          - 3.3
          - 3.4
          - 3.5
          - 3.6
          - 3.7
          - 3.8
          - 3.9
          - 3.10
          - 3.11
          - 3.12
          - 3.13
          - 3.14
          - 3.15
          - 3.16
          - 3.17
          - 3.18
          - 3.19
          - latest
          - edge

    steps:
      - name: Check out code
        uses: actions/checkout@v4

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

      - name: Login to Docker Hub
        run: docker login -u ${{ secrets.DOCKERHUB_USERNAME }} -p ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Build and Push Image
        run: |
          if [ -f "Dockerfile-${{ matrix.alpine_version }}" ]; then
            DOCKERFILE=Dockerfile-${{ matrix.alpine_version }}
          else
            DOCKERFILE=Dockerfile
          fi

          docker buildx build \
            --push \
            --pull \
            --quiet \
            --platform linux/amd64,linux/arm64 \
            --tag andrius/alpine-ruby:${{ matrix.alpine_version }} \
            --build-arg ALPINE_VERSION=${{ matrix.alpine_version }} \
            --file $DOCKERFILE
            .