build.yml

---
name: Build Atomic Studio
on:  # yamllint disable-line rule:truthy
  schedule:
    - cron: "00 17 * * *"  # build at 17:00 UTC every day
  push:
    paths:
      - config/**
      - generators/**
      - modules/**
      - .github/workflows/build.yml
  pull_request:
  workflow_dispatch:
env:
  IMAGE_REGISTRY: ghcr.io/${{ github.repository_owner }}
jobs:
  generate-recipes:
    name: Generate Recipes
    runs-on: ubuntu-latest
    permissions:
      contents: read
    outputs:
      recipes: ${{ steps.generate-recipes.outputs.recipes }}
    steps:
      - uses: actions/checkout@v4
      - name: Generate recipes
        id: generate-recipes
        shell: bash
        run: |
            /home/linuxbrew/.linuxbrew/bin/brew install pkl

            RECIPES=$(/home/linuxbrew/.linuxbrew/bin/pkl eval ./generators/main.pkl -m . -f yaml | sed '/.*files/d')

            # newlines replaced with spaces
            echo "Generated recipes: ${RECIPES//$'\n'/ }"

            # adds [" to the start, adds "] to the end, and replaces newlines with "," to turn the newline-delimeted string into a JSON array
            RECIPES_JSON_STR="[\"${RECIPES//$'\n'/\",\"}\"]"
            echo "Generated JSON: ${RECIPES_JSON_STR}"
            # JSON strings are the only way to dynamically generate GH build matrices

            echo "recipes=${RECIPES_JSON_STR}" >> $GITHUB_OUTPUT
            
  bluebuild:
    name: Build Image
    runs-on: ubuntu-latest
    needs: generate-recipes
    permissions:
      contents: read
      packages: write
      id-token: write
    strategy:
      fail-fast: false
      matrix:
        recipe: ${{ fromJson(needs.generate-recipes.outputs.recipes) }}
    steps:
      - name: Maximize build space
        uses: ublue-os/remove-unwanted-software@v6
        with:
          remove-codeql: 'true'
      - name: Additional cleanup
        run: |
            sudo rm -rf /usr/share/miniconda /usr/local/share/vcpkg
            sudo apt purge imagemagick imagemagick xorriso sqlite3 sphinxsearch shellcheck

      - name: Checkout repository
        uses: actions/checkout@v4
      
      - name: Generate recipes (again) and get metadata
        id: recipe_meta
        run: |
            /home/linuxbrew/.linuxbrew/bin/brew install pkl
            /home/linuxbrew/.linuxbrew/bin/pkl eval ./generators/main.pkl -m . -f yaml

            echo "IMAGE_NAME=$(yq '.name' ./${{matrix.recipe}} )" >> $GITHUB_OUTPUT
            echo "IMAGE_DESCRIPTION=$(yq '.description' ./${{matrix.recipe}} )" >> $GITHUB_OUTPUT
            echo "VERSION=40" >> $GITHUB_OUTPUT
            echo "tags=$(yq '."image-version"' ./${{matrix.recipe}} )" >> $GITHUB_OUTPUT

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
        with:
          install: true
          driver: docker

      - name: Image Metadata
        uses: docker/metadata-action@v5
        id: meta
        with:
          images: |
            ${{ env.IMAGE_NAME }}
          labels: |
            org.opencontainers.image.title=${{ steps.recipe_meta.outputs.IMAGE_NAME }}
            org.opencontainers.image.version=${{ steps.recipe_meta.outputs.VERSION }}
            org.opencontainers.image.description=${{ steps.recipe_meta.outputs.IMAGE_DESCRIPTION }}
            io.artifacthub.package.readme-url=https://raw.githubusercontent.com/atomic-studio-org/Atomic-Studio/main/README.md
            io.artifacthub.package.logo-url=https://raw.githubusercontent.com/atomic-studio-org/Atomic-Studio/main/assets/studio-blob.png

      - name: Generate Containerfile with Bluebuild
        shell: bash
        run: |
          docker run \
            --detach \
            --rm \
            --name blue-build-installer \
            ghcr.io/blue-build/cli:main-installer \
            tail -f /dev/null
          docker cp blue-build-installer:/out/bluebuild /usr/local/bin/bluebuild
          docker stop -t 0 blue-build-installer
          /usr/local/bin/bluebuild template -v ./${{matrix.recipe}} -o /tmp/Containerfile 

      - name: Build
        id: build_image
        uses: docker/build-push-action@v5
        with:
          context: .
          push: false 
          file: /tmp/Containerfile
          tags: ${{env.IMAGE_REGISTRY}}/${{ steps.recipe_meta.outputs.IMAGE_NAME }}:latest
          labels: ${{ steps.meta.outputs.labels }}

      - name: Sign kernel
        uses: atomic-studio-org/kernel-signer-docker@main
        with:
          image: ${{ env.IMAGE_REGISTRY }}/${{ steps.recipe_meta.outputs.IMAGE_NAME }}
          imagename: ${{ steps.recipe_meta.outputs.IMAGE_NAME }}
          privkey: ${{ secrets.SBKEY }}
          pubkey: /usr/etc/pki/certs/atomic-studio-sbkey.der
          tags: latest 

      # Workaround bug where capital letters in your GitHub username make it impossible to push to GHCR.
      # https://github.com/macbre/push-to-ghcr/issues/12
      - name: Lowercase Registry
        id: registry_case
        uses: ASzc/change-string-case-action@v6
        with:
          string: ${{ env.IMAGE_REGISTRY }}

      - name: Login to GitHub Container Registry
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ github.token }}

      - name: Push To GHCR Image Registry
        run: docker push --disable-content-trust ${{ env.IMAGE_REGISTRY }}/${{ steps.recipe_meta.outputs.IMAGE_NAME }}

      - name: Install cosign
        uses: sigstore/cosign-installer@v3.5.0
    
      - name: Sign container image
        shell: bash
        run: |
          cosign sign -y --key env://COSIGN_PRIVATE_KEY ${{ env.IMAGE_REGISTRY }}/${{ steps.recipe_meta.outputs.IMAGE_NAME }}@${{ steps.build_image.outputs.digest }}
          cosign sign -y --key env://COSIGN_PRIVATE_KEY ${{ env.IMAGE_REGISTRY }}/${{ steps.recipe_meta.outputs.IMAGE_NAME }}
        env:
          COSIGN_EXPERIMENTAL: false
          COSIGN_PRIVATE_KEY: ${{ secrets.SIGNING_SECRET }}