build.yml

name: "Build"

on:
  push:
    branches:
      - "**"
    tags:
      - "**"

jobs:
  docker-image:
    name: "Docker image"
    runs-on: ubuntu-latest

    steps:
      - name: "Define the Docker image version"
        id: image_version
        run: |
          if [[ "${GITHUB_REF}" =~ 'refs/tags/' ]]
          then
            echo DEFAULT_IMAGE_VERSION=${GITHUB_REF#refs/tags/} >> $GITHUB_OUTPUT
            echo ALPINE_IMAGE_VERSION=${GITHUB_REF#refs/tags/}-alpine >> $GITHUB_OUTPUT
          else
            echo DEFAULT_IMAGE_VERSION=latest >> $GITHUB_OUTPUT
            echo ALPINE_IMAGE_VERSION=alpine >> $GITHUB_OUTPUT
          fi

          if [[ "${{ github.ref_name == 'master' || startsWith(github.ref, 'refs/tags/') }}" == true ]]
          then
            BUILD_OUTPUT="registry"
          else
            BUILD_OUTPUT="cacheonly"
          fi

          echo BUILD_OUTPUT=${BUILD_OUTPUT} >> $GITHUB_OUTPUT

      - name: "Checkout"
        uses: actions/checkout@v4

      - name: "Login to DockerHub"
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: "Set up Docker Buildx"
        uses: docker/setup-buildx-action@v3
        with:
          version: "lab:latest"
          driver: cloud
          endpoint: "xstefanox/remote-arm"

      - name: "Build and push / default"
        uses: docker/build-push-action@v6
        with:
          tags: ${{ github.repository_owner }}/${{ github.event.repository.name }}:${{ steps.image_version.outputs.DEFAULT_IMAGE_VERSION }}
          platforms: linux/amd64,linux/arm64
          target: default
          outputs: type=${{ steps.image_version.outputs.BUILD_OUTPUT }}

      - name: "Build and push / Alpine"
        uses: docker/build-push-action@v6
        with:
          tags: ${{ github.repository_owner }}/${{ github.event.repository.name }}:${{ steps.image_version.outputs.ALPINE_IMAGE_VERSION }}
          platforms: linux/amd64,linux/arm64
          target: alpine
          outputs: type=${{ steps.image_version.outputs.BUILD_OUTPUT }}