charms 15.0.0

Programmable assets on Bitcoin and beyond
name: Create and publish Docker image

on:
  push:
    branches: ['release', 'test']
    tags: ['v*']

# Defines two custom environment variables for the workflow. These are used for the Container registry domain, and a name for the Docker image that this workflow builds.
env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

# There is a single job in this workflow. It's configured to run on the latest available version of Ubuntu.
jobs:
  build-and-push-prover-image:
    runs-on: ubuntu-22.04
    env:
      MY_RUNNER: ubuntu-22.04  # MUST match the `runs-on` value

    # Sets the permissions granted to the `GITHUB_TOKEN` for the actions in this job.
    permissions:
      contents: read
      packages: write
      #
    steps:
      # Checkout the code
      - uses: actions/checkout@v4

      # Set up Rust toolchain
      - name: Install Rust
        uses: actions-rust-lang/setup-rust-toolchain@v1
        with:
          cache-key: ${{env.MY_RUNNER}}

      - name: Install Protoc
        uses: arduino/setup-protoc@v3
        with:
          version: '34.x'
          repo-token: ${{ secrets.GITHUB_TOKEN }}   # Avoids GitHub API rate limiting

      # Build with the prover feature
      - name: Build the application
        run: |
          cargo install --path . --locked --bin charms-prover --features prover --root .
          cargo install --path . --locked --bin charms                          --root .

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
      # Uses the `docker/login-action` action to log in to the Container registry using the account and password that will publish the packages. Once published, the packages are scoped to the account defined here.
      - name: Log in to the Container registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      # This step uses [docker/metadata-action](https://github.com/docker/metadata-action#about) to extract tags and labels that will be applied to the specified image. The `id` "meta" allows the output of this step to be referenced in a subsequent step. The `images` value provides the base name for the tags and labels.
      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: "${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}"
          tags: |
            type=ref,event=branch
            type=semver,pattern={{version}}
      # It uses the `tags` and `labels` parameters to tag and label the image with the output from the "meta" step.
      - name: Build and push Docker image
        uses: docker/build-push-action@v6
        with:
          context: .
          file: github-actions.Dockerfile
          platforms: linux/amd64
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}