main.yml

name: Build all images

on:
  push:
    branches: [ master ]

defaults:
  run:
    shell: bash

env:
  GHCR_REPO: ghcr.io/phusion/passenger_binary_build_automation

jobs:
  build:
    strategy:
      fail-fast: false
      matrix:
        arch:
          - platform: linux/amd64
            runner: ubuntu-24.04
          - platform: linux/arm64
            runner: passenger-ubuntu-24.04-arm64-4cpu
    runs-on: ${{ matrix.arch.runner }}
    steps:
      - name: Prepare
        run: |
          echo "PLATFORM_PAIR=${platform//\//-}" >> $GITHUB_ENV
          echo "DOCKER_IMAGE_VERSION=$(cat "./shared/definitions/docker_image_version")" >> $GITHUB_ENV
        env:
          platform: ${{ matrix.arch.platform }}

      - name: Docker meta
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: |
            ${{ env.GHCR_REPO }}

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

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3

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

      - name: Build and push by digest
        id: build
        uses: docker/build-push-action@v6
        with:
          file: ./linux/docker_image/Dockerfile
          platforms: ${{ matrix.arch.platform }}
          labels: ${{ steps.meta.outputs.labels }}
          outputs: "type=image,name=${{ env.GHCR_REPO }},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@v4
        with:
          name: digests-${{ env.PLATFORM_PAIR }}
          path: /tmp/digests/*
          if-no-files-found: error
          retention-days: 1

  merge:
    runs-on: ubuntu-latest
    needs:
      - build
    steps:
      - name: Download digests
        uses: actions/download-artifact@v4
        with:
          path: /tmp/digests
          pattern: digests-*
          merge-multiple: true

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

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

      - name: Docker meta
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: |
            ${{ env.GHCR_REPO }}
          tags: |
            type=ref,event=branch
            type=ref,event=pr
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}

      - name: Create manifest list and push
        working-directory: /tmp/digests
        run: docker buildx imagetools create $(jq -cr '.tags | map("-t " + .) | join(" ")' <<< "$DOCKER_METADATA_OUTPUT_JSON") $(printf '${{ env.GHCR_REPO }}@sha256:%s ' *)

      - name: Inspect image
        run: docker buildx imagetools inspect ${{ env.GHCR_REPO }}:${{ steps.meta.outputs.version }}