discord.js/.github/workflows/publish-docker.yml

name: Publish docker images
on:
  workflow_dispatch:
env:
  IMAGE_NAME: discordjs/proxy
jobs:
  build:
    name: Build ${{ matrix.platform }}
    runs-on: ${{ matrix.runner }}
    strategy:
      fail-fast: false
      matrix:
        include:
          - platform: linux/amd64
            runner: ubuntu-latest
          - platform: linux/arm64
            runner: ubuntu-24.04-arm
    steps:
      - name: Prepare
        run: |
          platform=${{ matrix.platform }}
          echo "PLATFORM_PAIR=${platform//\//-}" >> $GITHUB_ENV

      - name: Checkout repository
        uses: actions/checkout@v6

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

      - name: Login to DockerHub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_ACCESS_TOKEN }}

      - name: Build and push by digest
        id: build
        uses: docker/build-push-action@v6
        with:
          context: .
          file: apps/proxy-container/Dockerfile
          platforms: ${{ matrix.platform }}
          outputs: type=image,name=${{ env.IMAGE_NAME }},push-by-digest=true,name-canonical=true,push=true

      - name: Export digest
        run: |
          mkdir -p /tmp/digests
          digest="${{ steps.build.outputs.digest }}"
          touch "/tmp/digests/${digest#sha256:}"

      - name: Upload digest
        uses: actions/upload-artifact@v5
        with:
          name: digests-${{ env.PLATFORM_PAIR }}
          path: /tmp/digests/*
          if-no-files-found: error
          retention-days: 1

  merge:
    name: Create and push manifest list
    runs-on: ubuntu-latest
    needs: build
    steps:
      - name: Download digests
        uses: actions/download-artifact@v6
        with:
          path: /tmp/digests
          pattern: digests-*
          merge-multiple: true

      - name: Checkout repository
        uses: actions/checkout@v6

      - name: Get Major Version
        id: version
        run: |
          FULL_VER=$(jq --raw-output '.version' apps/proxy-container/package.json)
          MAJOR=$(echo $FULL_VER | cut -d '.' -f1)
          echo "major=$MAJOR" >> $GITHUB_OUTPUT

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

      - name: Login to DockerHub
        uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKER_USERNAME }}
          password: ${{ secrets.DOCKER_ACCESS_TOKEN }}

      - name: Create manifest list and push
        working-directory: /tmp/digests
        run: |
          docker buildx imagetools create -t ${{ env.IMAGE_NAME }}:${{ steps.version.outputs.major }} \
            $(printf '${{ env.IMAGE_NAME }}@sha256:%s ' *)

      - name: Inspect image
        run: |
          docker buildx imagetools inspect ${{ env.IMAGE_NAME }}:${{ steps.version.outputs.major }}