release.yml

name: Build and upload Docker image

on:
  workflow_dispatch:
  push:
    branches:
      - main
  pull_request:
    branches:
      - main

env:
  REGISTRY: ghcr.io/${{ github.repository_owner }}

jobs:
  release-please:
    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
    concurrency:
      group: release-please-${{ github.ref }}
      cancel-in-progress: true
    permissions:
      contents: write
      pull-requests: write
    runs-on: ubuntu-latest
    outputs:
      graph_tally_aggregator: ${{ steps.release-please.outputs['crates/bin/aggregator--tag_name'] }}
      graph_tally_escrow_manager: ${{ steps.release-please.outputs['crates/bin/escrow_manager--tag_name'] }}
    steps:
      - name: Release please
        id: release-please
        uses: googleapis/release-please-action@5c625bfb5d1ff62eadeeb3772007f7f66fdcf071 # v4.4.1
        with:
          token: ${{ secrets.GITHUB_TOKEN }}

  prepare:
    runs-on: ubuntu-latest
    outputs:
      targets: ${{ steps.set.outputs.targets }}
    steps:
      - id: set
        run: echo 'targets=["graph_tally_aggregator","graph_tally_escrow_manager"]' >> $GITHUB_OUTPUT

  build:
    name: Build ${{ matrix.target }} (${{ matrix.platform }})
    needs: [prepare, release-please]
    if: always() && needs.prepare.result == 'success' && (needs.release-please.result == 'success' || needs.release-please.result == 'skipped')
    strategy:
      fail-fast: false
      matrix:
        target: ${{ fromJSON(needs.prepare.outputs.targets) }}
        platform: [linux/amd64, linux/arm64]
        include:
          - platform: linux/amd64
            runner: ubuntu-24.04
          - platform: linux/arm64
            runner: ubuntu-24.04-arm
    runs-on: ${{ matrix.runner }}
    permissions:
      packages: write
    steps:
      - name: Prepare platform pair
        run: |
          platform=${{ matrix.platform }}
          echo "PLATFORM_PAIR=${platform//\//-}" >> $GITHUB_ENV

      - name: Checkout
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

      - uses: docker/setup-buildx-action@4d04d5d9486b7bd6fa91e7baf45bbb4f8b9deedd # v4.0.0

      - name: Log in to the Container registry
        uses: docker/login-action@4907a6ddec9925e35a0a9e82d7399ccc52663121 # v4.1.0
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Docker labels
        id: meta
        uses: docker/metadata-action@030e881283bb7a6894de51c315a6bfe6a94e05cf # v6.0.0
        with:
          images: ${{ env.REGISTRY }}/${{ matrix.target }}

      - name: Build and push by digest
        id: build
        uses: docker/build-push-action@bcafcacb16a39f128d818304e6c9c0c18556b85f # v7.1.0
        with:
          context: ./
          file: docker/Dockerfile.${{ matrix.target }}
          platforms: ${{ matrix.platform }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=gha,scope=${{ matrix.target }}-${{ env.PLATFORM_PAIR }}
          cache-to: type=gha,mode=max,scope=${{ matrix.target }}-${{ env.PLATFORM_PAIR }}
          outputs: type=image,name=${{ env.REGISTRY }}/${{ matrix.target }},push-by-digest=true,name-canonical=true,push=${{ github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name == github.repository }}

      - name: Export digest
        if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name == github.repository
        run: |
          mkdir -p ${{ runner.temp }}/digests
          digest="${{ steps.build.outputs.digest }}"
          touch "${{ runner.temp }}/digests/${digest#sha256:}"

      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
        if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name == github.repository
        with:
          name: digests-${{ matrix.target }}-${{ env.PLATFORM_PAIR }}
          path: ${{ runner.temp }}/digests/*
          if-no-files-found: error
          retention-days: 1

  merge:
    name: Merge ${{ matrix.target }} into multi-arch manifest
    needs: [prepare, release-please, build]
    if: |
      !cancelled()
      && needs.build.result == 'success'
      && (github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name == github.repository)
    strategy:
      fail-fast: false
      matrix:
        target: ${{ fromJSON(needs.prepare.outputs.targets) }}
    runs-on: ubuntu-latest
    permissions:
      packages: write
    steps:
      # When release-please is skipped (workflow_dispatch, or no releasable commits) VERSION is empty;
      # meta.outputs.version then falls back to the branch/sha tag, which is intentional.
      - name: Extract version from tag
        id: extract_version
        run: |
          TAG_NAME="${{ needs.release-please.outputs[matrix.target] }}"
          if [[ "$TAG_NAME" =~ ^${{ matrix.target }}-(.*)$ ]]; then
            VERSION="${BASH_REMATCH[1]}"
          else
            VERSION=""
          fi
          echo "version=$VERSION" >> $GITHUB_OUTPUT

      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
        with:
          path: ${{ runner.temp }}/digests
          pattern: digests-${{ matrix.target }}-*
          merge-multiple: true

      - uses: docker/setup-buildx-action@4d04d5d9486b7bd6fa91e7baf45bbb4f8b9deedd # v4.0.0

      - uses: docker/login-action@4907a6ddec9925e35a0a9e82d7399ccc52663121 # v4.1.0
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Docker tags
        id: meta
        uses: docker/metadata-action@030e881283bb7a6894de51c315a6bfe6a94e05cf # v6.0.0
        with:
          images: ${{ env.REGISTRY }}/${{ matrix.target }}
          tags: |
            type=schedule
            type=ref,event=branch
            type=ref,event=pr
            type=semver,pattern={{version}},value=${{ steps.extract_version.outputs.version }}
            type=semver,pattern={{major}}.{{minor}},value=${{ steps.extract_version.outputs.version }}
            type=semver,pattern={{major}}.{{minor}}.{{patch}},value=${{ steps.extract_version.outputs.version }}
            type=semver,pattern={{major}},value=${{ steps.extract_version.outputs.version }}
            type=semver,pattern=v{{version}},value=${{ steps.extract_version.outputs.version }}
            type=semver,pattern=v{{major}}.{{minor}},value=${{ steps.extract_version.outputs.version }}
            type=semver,pattern=v{{major}}.{{minor}}.{{patch}},value=${{ steps.extract_version.outputs.version }}
            type=semver,pattern=v{{major}},value=${{ steps.extract_version.outputs.version }}
            type=sha,enable=true

      # Glob `*` expands to digest-named files written by the build job's Export digest step.
      - name: Create manifest list and push
        working-directory: ${{ runner.temp }}/digests
        run: |
          docker buildx imagetools create \
            $(jq -cr '.tags | map("-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON") \
            $(printf '${{ env.REGISTRY }}/${{ matrix.target }}@sha256:%s ' *)

      - name: Inspect image
        run: |
          docker buildx imagetools inspect ${{ env.REGISTRY }}/${{ matrix.target }}:${{ steps.meta.outputs.version }}