docker-hub-release.yml

# Copied from https://github.com/matrix-org/matrix-bifrost/blob/develop/.github/workflows/docker-hub-release.yml

name: "Docker Hub - Release"

on:
  release:
    types: [published]

env:
  DOCKER_NAMESPACE: gnuxie
  PLATFORMS: linux/amd64,linux/arm64

jobs:
  docker-release:
    runs-on: ubuntu-latest
    steps:
      - name: Check out
        uses: actions/checkout@v4
      - name: Get release tag
        run: echo "RELEASE_VERSION=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV
      - name: Unshallow for git describe so we can create version.txt
        run: git fetch --prune --unshallow --tags --all --force
      - name: Prepare version file
        run: git describe > version.txt

      # Needed for multi platform builds
      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3.0.0

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3.0.0

      - name: Log in to Docker Hub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Build image
        uses: docker/build-push-action@v5
        with:
          context: .
          file: ./Dockerfile
          platforms: ${{ env.PLATFORMS }}
          push: true
          tags: |
            ${{ env.DOCKER_NAMESPACE }}/draupnir:${{ env.RELEASE_VERSION }}
            ${{ env.DOCKER_NAMESPACE }}/draupnir:latest