multiarch.yml

name: Multiarch build
on:
  push:
    branches:
      - main
  pull_request:
    branches:
      - main
  release:
    types:
      - created
  workflow_dispatch:

env:
  IMAGE_NAME: zerotier
  STORAGE_DRIVER: overlay
  DOCKER_REGISTRY: docker://docker.io/derskythe
  GHCR_REGISTRY: docker://ghcr.io/derskythe

jobs:
  build:
    name: Build images
    runs-on: ubuntu-22.04
    strategy:
      fail-fast: false
      matrix:
        platform: [
          {name: "linux/amd64", tag: "amd64"},
          {name: "linux/386", tag: "i386"},
          {name: "linux/arm64/v8", tag: "arm64v8"},
          {name: "linux/arm/v7", tag: "arm32v7"},
          {name: "linux/arm/v6", tag: "arm32v6"},
          {name: "linux/riscv64", tag: "riscv64"},
          {name: "linux/ppc64le", tag: "ppc64le"},
          {name: "linux/s390x", tag: "s390x"}
        ]
    steps:
      - name: Checkout zerotier-docker
        uses: actions/checkout@v4

      - name: Install qemu dependency
        run: |
          sudo apt-get update
          sudo apt-get install -y qemu-user-static

      - name: Build Image
        run: buildah bud --platform ${{ matrix.platform.name }} --build-arg ALPINE_IMAGE=docker.io/alpine -f ./Dockerfile -t ${{ env.IMAGE_NAME }}:${{ matrix.platform.tag }} .

      - name: Check images created
        run: buildah images | grep '${{ env.IMAGE_NAME }}'

      - name: Check image metadata
        run: buildah inspect ${{ env.IMAGE_NAME }}:${{ matrix.platform.tag }} | jq ".OCIv1.architecture"

      - name: Export image
        run: podman save -o /tmp/image.tar ${{ env.IMAGE_NAME }}:${{ matrix.platform.tag }}

      - name: Upload artifact
        uses: actions/upload-artifact@v4
        with:
          name: image-${{ matrix.platform.tag }}
          path: /tmp/image.tar

  push:
    name: Publish images
    runs-on: ubuntu-22.04
    needs: build
    environment: production
    permissions:
      id-token: write
      packages: write
      contents: read
      attestations: write
    steps:
      - name: Download artifacts
        uses: actions/download-artifact@v4

      - name: Setup podman and buildah
        uses: zyclonite/setup-podman@v1

      - name: Import images
        run: |
          podman load -i ./image-amd64/image.tar
          podman load -i ./image-i386/image.tar
          podman load -i ./image-arm64v8/image.tar
          podman load -i ./image-arm32v7/image.tar
          podman load -i ./image-arm32v6/image.tar
          podman load -i ./image-riscv64/image.tar
          podman load -i ./image-ppc64le/image.tar
          podman load -i ./image-s390x/image.tar

      - name: Create multi-arch manifest
        run: |
          buildah manifest create ${{ env.IMAGE_NAME }}:latest
          buildah manifest add --arch amd64 ${{ env.IMAGE_NAME }}:latest ${{ env.IMAGE_NAME }}:amd64
          buildah manifest add --arch 386 ${{ env.IMAGE_NAME }}:latest ${{ env.IMAGE_NAME }}:i386
          buildah manifest add --arch arm64 --variant v8 ${{ env.IMAGE_NAME }}:latest ${{ env.IMAGE_NAME }}:arm64v8
          buildah manifest add --arch arm --variant v7 ${{ env.IMAGE_NAME }}:latest ${{ env.IMAGE_NAME }}:arm32v7
          buildah manifest add --arch arm --variant v6 ${{ env.IMAGE_NAME }}:latest ${{ env.IMAGE_NAME }}:arm32v6
          buildah manifest add --arch riscv64 ${{ env.IMAGE_NAME }}:latest ${{ env.IMAGE_NAME }}:riscv64
          buildah manifest add --arch ppc64le ${{ env.IMAGE_NAME }}:latest ${{ env.IMAGE_NAME }}:ppc64le
          buildah manifest add --arch s390x ${{ env.IMAGE_NAME }}:latest ${{ env.IMAGE_NAME }}:s390x

      - name: Push unstable images
        if: ${{ github.event_name == 'push' }}
        run: |
          buildah manifest push --all --format v2s2 --creds ${{ github.actor }}:${{ secrets.DOCKER_PASS }} ${{ env.IMAGE_NAME }}:latest ${{ env.DOCKER_REGISTRY }}/${{ env.IMAGE_NAME }}:main
          buildah manifest push --all --creds ${{ github.actor }}:${{ secrets.GITHUB_TOKEN }} ${{ env.IMAGE_NAME }}:latest ${{ env.GHCR_REGISTRY }}/${{ env.IMAGE_NAME }}:main

      - name: Push stable images
        if: ${{ github.event_name == 'release' }}
        run: |
          buildah manifest push --all --format v2s2 --creds ${{ github.actor }}:${{ secrets.DOCKER_PASS }} ${{ env.IMAGE_NAME }}:latest ${{ env.DOCKER_REGISTRY }}/${{ env.IMAGE_NAME }}:latest
          buildah manifest push --all --format v2s2 --creds ${{ github.actor }}:${{ secrets.DOCKER_PASS }} ${{ env.IMAGE_NAME }}:latest ${{ env.DOCKER_REGISTRY }}/${{ env.IMAGE_NAME }}:${{ github.event.release.tag_name }}
          buildah manifest push --all --creds ${{ github.actor }}:${{ secrets.GITHUB_TOKEN }} ${{ env.IMAGE_NAME }}:latest ${{ env.GHCR_REGISTRY }}/${{ env.IMAGE_NAME }}:latest
          buildah manifest push --all --creds ${{ github.actor }}:${{ secrets.GITHUB_TOKEN }} ${{ env.IMAGE_NAME }}:latest ${{ env.GHCR_REGISTRY }}/${{ env.IMAGE_NAME }}:${{ github.event.release.tag_name }}
      
      - name: Generate SBOM
        uses: anchore/sbom-action@v0
        with:
          image: ${{ env.GHCR_REGISTRY }}/${{ env.IMAGE_NAME }}:latest
          format: 'cyclonedx-json'
          output-file: 'sbom.cyclonedx.json'
      
      - name: Attest
        uses: actions/attest-sbom@v1
        id: attest
        with:
          subject-name: ${{ env.GHCR_REGISTRY }}/${{ env.IMAGE_NAME }}
          sbom-path: 'sbom.cyclonedx.json'
          push-to-registry: true

  router:
    uses: ./.github/workflows/router.yml
    needs: push
    with:
      tag: ${{ github.event.release.tag_name }}
      event: ${{ github.event_name }}
    secrets:
      REGISTRY_PASSWORD: ${{ secrets.REGISTRY_PASSWORD }}
      QUAY_PASSWORD: ${{ secrets.QUAY_PASSWORD }}