build-docker.yml

name: Build Docker

on:
  workflow_dispatch: {}
  workflow_call: {}

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  build-docker:
    runs-on: ubuntu-latest

    permissions:
      contents: read
      packages: write # required for GHCR pushes

    env:
      REGISTRY: ghcr.io
      IMAGE_NAME: ghcr.io/${{ github.repository }}
      BASE_IMAGE: ghcr.io/${{ github.repository_owner }}/lncrawl-base:latest

    steps:
      - name: 📥 Checkout
        uses: actions/checkout@v6
        with:
          submodules: recursive

      - name: 🔧 Set lowercase image name
        run: |
          echo "IMAGE_NAME=ghcr.io/${GITHUB_REPOSITORY,,}" >> $GITHUB_ENV
          echo "BASE_IMAGE=ghcr.io/${GITHUB_REPOSITORY_OWNER,,}/lncrawl-base:latest" >> $GITHUB_ENV

      - name: 🤖 Set up QEMU
        uses: docker/setup-qemu-action@v4

      - name: 🐳 Set up Docker Buildx
        uses: docker/setup-buildx-action@v4

      - name: 🔐 Login to GHCR
        uses: docker/login-action@v4
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: 🏷️ Read package version
        id: package_version
        run: echo "version=$(head -n 1 lncrawl/VERSION)" >> "$GITHUB_OUTPUT"

      - name: 🏗️ Build and Push Image
        uses: docker/build-push-action@v6
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          push: true
          build-args: |
            BASE_IMAGE=${{ env.BASE_IMAGE }}
          tags: |
            ${{ env.IMAGE_NAME }}:latest
            ${{ env.IMAGE_NAME }}:${{ github.sha }}
            ${{ env.IMAGE_NAME }}:${{ steps.package_version.outputs.version }}
          labels: |
            org.opencontainers.image.source=${{ github.event.repository.html_url }}
            org.opencontainers.image.revision=${{ github.sha }}
          cache-from: type=gha
          cache-to: type=gha,mode=max