build_docker.yml

name: Build Docker Image

on:
  push:
    tags:
      - 'v*'

permissions:
  contents: read
  packages: write

env:
  GHCR_REPO: ghcr.io/aurora-develop/aurora

jobs:
  docker:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Resolve version from tag
        id: version
        shell: bash
        run: |
          tag="${GITHUB_REF_NAME}"
          version="${tag#v}"
          if [ -z "${version}" ] || [ "${version}" = "${tag}" ]; then
            echo "Expected a tag in the form v<version>, got: ${tag}" >&2
            exit 1
          fi
          echo "version=${version}" >> "${GITHUB_OUTPUT}"
          echo "tag=${tag}" >> "${GITHUB_OUTPUT}"
          echo "sha_short=${GITHUB_SHA::12}" >> "${GITHUB_OUTPUT}"

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

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

      - name: Login to GitHub Container Registry
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GHCR_PAT }}

      - name: Build and push to GHCR
        uses: docker/build-push-action@v6
        with:
          context: .
          file: Dockerfile
          platforms: linux/amd64,linux/arm64,linux/arm/v7,linux/s390x
          push: true
          provenance: false
          tags: |
            ${{ env.GHCR_REPO }}:latest
            ${{ env.GHCR_REPO }}:${{ steps.version.outputs.version }}
            ${{ env.GHCR_REPO }}:${{ steps.version.outputs.tag }}
            ${{ env.GHCR_REPO }}:${{ steps.version.outputs.sha_short }}
          cache-from: type=gha,scope=${{ github.ref_name }}
          cache-to: type=gha,mode=max,scope=${{ github.ref_name }}