docker-publish.yml

name: Build and Push Docker Image

on:
  push:
    tags:
      - '*'
  workflow_dispatch:

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  build-and-push:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write

    steps:
      - name: Checkout Repository
        uses: actions/checkout@v4

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
        with:
          install: true
          driver-opts: network=host

      - name: Debug Buildx Platforms
        run: docker buildx ls

      - name: Log in to GitHub Container Registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract Tag or Branch Name
        id: extract_ref
        run: |
          if [[ "${GITHUB_REF}" == refs/tags/* ]]; then
            echo "TAG_NAME=${GITHUB_REF#refs/tags/}" >> $GITHUB_ENV
          else
            BRANCH_NAME=${GITHUB_REF#refs/heads/}
            SAFE_BRANCH_NAME=$(echo "$BRANCH_NAME" | tr '/' '-')
            echo "TAG_NAME=${SAFE_BRANCH_NAME}" >> $GITHUB_ENV
          fi

      - name: Debug Extracted Tag
        run: echo "Extracted Tag ${{ env.TAG_NAME }}"

      - name: Build and Push Docker Image (Multi-Arch)
        uses: docker/build-push-action@v5
        with:
          context: .
          push: true
          platforms: linux/amd64,linux/arm64
          tags: |
            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ env.TAG_NAME }}
            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest
          cache-from: type=gha
          cache-to: type=gha,mode=max
          attest: false  # FIX für unknown/unknown