deploy.yaml

name: Publish Docker image

on:
  release:
    types: [published]

jobs:
  push_to_registry:
    name: Push Docker image to Docker Hub for ${{ matrix.platform }}
    runs-on:
      group: ${{ matrix.runner_group }}
    permissions:
      packages: write
      contents: read
      attestations: write
    strategy:
      matrix:
        platform:
          - linux/amd64
          - linux/arm64
        include:
          - platform: linux/amd64
            runner_group: large_amd64
            platform_tag: amd64
          - platform: linux/arm64
            runner_group: large_arm64
            platform_tag: arm64
    steps:
      - name: Check out the repo
        uses: actions/checkout@v4

      - name: Log in to Docker Hub
        uses: docker/login-action@f4ef78c080cd8ba55a85445d5b36e214a81df20a
        with:
          username: ambarltd
          password: ${{ secrets.DOCKER_PASSWORD }}

      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@9ec57ed1fcdbf14dcef7dfbe97b2010124a938b7
        with:
          images: ambarltd/emulator

      - name: Build Docker image for ${{ matrix.platform }}
        id: push
        uses: docker/build-push-action@3b5e8027fcad23fda98b2e3ac259d8d67585f671
        with:
          context: ./build/
          file: ./build/Dockerfile
          pull: false
          push: true
          platforms: ${{ matrix.platform }}
          tags: ambarltd/emulator:${{ github.event.release.tag_name }}-${{ matrix.platform_tag }}
          labels: ${{ steps.meta.outputs.labels }}

  merge_manifests:
    name: Merge manifests to prevent overrides on Docker Hub
    runs-on: ubuntu-20.04
    depends-on: push_to_registry
    permissions:
      packages: write
      contents: read
      attestations: write
    steps:
      - name: Log in to Docker Hub
        uses: docker/login-action@f4ef78c080cd8ba55a85445d5b36e214a81df20a
        with:
          username: ambarltd
          password: ${{ secrets.DOCKER_PASSWORD }}

      - name: Merge and push manifests
        run: |
          docker manifest create ambarltd/emulator:${{ github.event.release.tag_name }} \
            --amend ambarltd/emulator:${{ github.event.release.tag_name }}-amd64 \
            --amend ambarltd/emulator:${{ github.event.release.tag_name }}-arm64
          docker manifest push ambarltd/emulator:${{ github.event.release.tag_name }}
          
          docker manifest create ambarltd/emulator:latest \
            --amend ambarltd/emulator:${{ github.event.release.tag_name }}-amd64 \
            --amend ambarltd/emulator:${{ github.event.release.tag_name }}-arm64
          docker manifest push ambarltd/emulator:latest