variants.yml

name: Docker Variants

on:
  push:
    branches: [ "main" ]
    tags:
      - '*'

jobs:
  build:
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        variant:
          - alpine
          - slim

    permissions:
      actions: write
      checks: write
      contents: write
      deployments: write
      id-token: write
      issues: write
      pull-requests: write
      security-events: write
      statuses: write

    steps:
    - uses: actions/checkout@v4

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

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

    - name: Docker meta
      id: meta
      uses: docker/metadata-action@v5
      with:
        images: ${{ github.repository }}
        tags: |
          type=raw,value=${{ matrix.variant }},enable={{is_default_branch}}
          type=semver,pattern={{version}}-${{ matrix.variant }}

    - name: Login to Docker Hub
      uses: docker/login-action@v3
      with:
        username: ${{ secrets.DOCKER_USERNAME }}
        password: ${{ secrets.DOCKER_TOKEN }}

    - name: Build and push
      uses: docker/build-push-action@v5
      with:
        context: .
        file: Dockerfile.${{ matrix.variant }}
        platforms: linux/amd64,linux/arm64,linux/arm
        push: true
        tags: ${{ steps.meta.outputs.tags }}
        labels: ${{ steps.meta.outputs.labels }}