virt-minion-containers.yml

name: "Virt Minion 🐳 Container"

on:
  workflow_dispatch:
  schedule:
    - cron: "0 18 * * *"
  push:
    branches:
      - '*'
    paths:
      - containers.yml
      - '.github/workflows/virt-minion-containers.yml'
      - 'custom/virt-minion/*'
  pull_request:
    paths:
      - containers.yml
      - '.github/workflows/virt-minion-containers.yml'
      - 'custom/virt-minion/*'

env:
  PATH_IN_REPO: custom/virt-minion


concurrency:
  # New builds always cancel previous, still running, builds
  group: custom/virt-minion-${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  matrix-generator:
    name: Generate Matrix
    runs-on: ubuntu-latest
    outputs:
      tags: ${{ steps.set-matrix.outputs.tags }}
      name: ${{ steps.set-matrix.outputs.name }}
      dockerinfo: ${{ steps.set-matrix.outputs.dockerinfo }}
    steps:
      - name: "Throttle Builds"
        run: |
          t="$(shuf -i 5-30 -n 1)"; echo "Sleeping $t seconds"; sleep "$t"

      - name: "Fetching Repository Contents"
        uses: actions/checkout@v4

      - name: Setup Python
        uses: actions/setup-python@v4
        with:
          python-version: '3.9'

      - name: Install Requirements
        run: |
          python -m pip install -r requirements.txt

      - name: "Docker QEMU"
        uses: docker/setup-qemu-action@v3

      - name: "Docker BuildX"
        id: buildx
        uses: docker/setup-buildx-action@v3

      - name: "Generate Matrix Data"
        id: set-matrix
        run: |
          inv containers.matrix --from-workflow ${{ env.PATH_IN_REPO }}

  build:
    runs-on: ubuntu-latest
    needs: matrix-generator
    name: "Build ${{ matrix.dockerinfo.name }}:${{ matrix.dockerinfo.tag }}${{ matrix.dockerinfo.platform && format(' ({0})', matrix.dockerinfo.platform) || ''}}"
    strategy:
      fail-fast: false
      max-parallel: 10
      matrix:
        dockerinfo: ${{ fromJson(needs.matrix-generator.outputs.dockerinfo) }}

    permissions:
      actions: read
      checks: write
      issues: read
      packages: write
      pull-requests: read
      repository-projects: read
      statuses: read

    steps:
      - name: "Fetching Repository Contents"
        uses: actions/checkout@v4

      - name: Setup Python
        uses: actions/setup-python@v4
        with:
          python-version: '3.9'

      - name: Install Requirements
        run: |
          python -m pip install -r requirements.txt

      - name: "Throttle concurrent pushes"
        run: |
          t="$(shuf -i 5-30 -n 1)"; echo "Sleeping $t seconds"; sleep "$t"

      - name: Docker meta
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: |
            ghcr.io/${{ github.repository }}/${{ matrix.dockerinfo.name }}
          tags: |
            type=raw,value=${{ matrix.dockerinfo.tag }}
          flavor: |
            latest=false

      - name: "Docker QEMU"
        uses: docker/setup-qemu-action@v3

      - name: "Docker BuildX"
        id: buildx
        uses: docker/setup-buildx-action@v3

      - name: Inspect builder
        run: |
          echo "Name:      ${{ steps.buildx.outputs.name }}"
          echo "Endpoint:  ${{ steps.buildx.outputs.endpoint }}"
          echo "Status:    ${{ steps.buildx.outputs.status }}"
          echo "Flags:     ${{ steps.buildx.outputs.flags }}"
          echo "Platforms: ${{ steps.buildx.outputs.platforms }}"

      - name: "Log into GitHub Container Registry"
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: "Build & Publish"
        uses: docker/build-push-action@v5
        id: build
        with:
          file: ${{ matrix.dockerinfo.file }}
          context: ${{ env.PATH_IN_REPO }}
          platforms: ${{ matrix.dockerinfo.platform }}
          labels: ${{ steps.meta.outputs.labels }}
          outputs: type=image,name=ghcr.io/${{ github.repository }}/${{ matrix.dockerinfo.name }}:${{ steps.meta.outputs.version }},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@v3
        with:
          name: digests-${{ matrix.dockerinfo.name }}-${{ matrix.dockerinfo.tag }}
          path: /tmp/digests/*
          if-no-files-found: error
          retention-days: 1

  merge:
    runs-on: ubuntu-latest
    name: "Merge ${{ needs.matrix-generator.outputs.name }}:${{ matrix.tag }}"

    strategy:
      fail-fast: false
      max-parallel: 10
      matrix:
        tag: ${{ fromJson(needs.matrix-generator.outputs.tags) }}

    needs:
      - matrix-generator
      - build

    permissions:
      actions: read
      checks: write
      issues: read
      packages: write
      pull-requests: read
      repository-projects: read
      statuses: read

    steps:
      - name: Download digests
        uses: actions/download-artifact@v3
        with:
          name: digests-${{ needs.matrix-generator.outputs.name }}-${{ matrix.tag }}
          path: /tmp/digests

      - name: Show digests
        run: |
          tree -a /tmp/digest
          cat /tmp/digests/*

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

      - name: Docker meta
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: |
            ghcr.io/${{ github.repository }}/${{ needs.matrix-generator.outputs.name }}
          tags: |
            type=raw,value=${{ matrix.tag }}
          flavor: |
            latest=false

      - name: "Log into GitHub Container Registry"
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - 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")" \
            "$(printf 'ghcr.io/${{ github.repository }}/${{ needs.matrix-generator.outputs.name }}@sha256:%s ' *)"

      - name: Inspect image
        run: |
          docker buildx imagetools inspect ghcr.io/${{ github.repository }}/${{ needs.matrix-generator.outputs.name }}:${{ steps.meta.outputs.version }}