docker-build.yml

name: Build and Publish Docker Image

on:
  schedule:
    - cron: "0 0 * * *" # Runs daily at midnight UTC
  workflow_dispatch: # Allows manual triggering

jobs:
  build-and-publish:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v3

      - name: Get latest release tag and check for new release
        id: check_release
        run: |
          RELEASE_TAG=$(curl -s https://api.github.com/repos/get-convex/convex-backend/releases/latest | grep "tag_name" | cut -d\" -f4)
          echo "RELEASE_TAG=$RELEASE_TAG" >> $GITHUB_ENV

          PREVIOUS_TAG=$(docker inspect ghcr.io/${{ github.repository }}:latest --format '{{ index .Config.Labels "org.opencontainers.image.version" }}' || echo "none")

          if [ -z "$PREVIOUS_TAG" ]; then
            echo "No previous image found. Proceeding with the build of release: $RELEASE_TAG."
          elif [ "$RELEASE_TAG" == "$PREVIOUS_TAG" ]; then
            echo "No new release detected. Exiting."
            exit 0
          else
            echo "New release detected: $RELEASE_TAG"
          fi

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

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

      - name: Build and push Docker image
        uses: docker/build-push-action@v5
        with:
          context: .
          push: true
          tags: |
            ghcr.io/${{ github.repository }}:$RELEASE_TAG
            ghcr.io/${{ github.repository }}:latest
          platforms: linux/amd64,linux/arm64
          build-args: |
            RELEASE_TAG=$RELEASE_TAG
          labels: |
            org.opencontainers.image.version=$RELEASE_TAG

      - name: Create GitHub Release
        id: create_release
        uses: actions/create-release@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          tag_name: ${{ env.RELEASE_TAG }}
          release_name: "Release ${{ env.RELEASE_TAG }}"
          body: |
            New Docker images have been built and are available at the following locations:

            - `ghcr.io/${{ github.repository }}:${{ env.RELEASE_TAG }}`
            - `ghcr.io/${{ github.repository }}:latest`
          draft: false
          prerelease: false

      - name: Post build cleanup
        run: docker system prune -f