name: Reusable Build and Push
on:
  workflow_call:
    inputs:
      image_flavors:
        description: "JSON string of flavors to build, '[main, nvidia-open]'"
        default: "['main','nvidia-open']"
        type: string
      brand_name:
        description: "The Brand Name: aurora"
        required: false
        default: aurora
        type: string
      stream_name:
        description: "The Fedora Version: stable, or latest"
        required: true
        type: string
      architecture:
        description: "JSON string of architectures to build, '[aarch64, x86_64]'"
        default: "['x86_64']"
        required: false
        type: string
      publish:
        description: "Publish this image"
        required: false
        type: boolean
        default: true
    secrets:
      SIGNING_SECRET:
        required: true

env:
  IMAGE_REGISTRY: ghcr.io/${{ github.repository_owner }}
  GITHUB_REPOSITORY_OWNER: ${{ github.repository_owner }}

concurrency:
  group: ${{ github.workflow }}-${{ github.ref || github.run_id }}-${{ inputs.brand_name}}-${{ inputs.stream_name }}
  cancel-in-progress: true

permissions: {}

jobs:
  build_container:
    name: image
    runs-on: ${{ matrix.architecture == 'x86_64' && 'ubuntu-26.04' || 'ubuntu-26.04-arm' }}
    permissions:
      contents: read
      packages: write
      id-token: write
      attestations: write
      artifact-metadata: write

    continue-on-error: false
    strategy:
      fail-fast: false
      matrix:
        image_flavor: ${{ fromJson(inputs.image_flavors) }}
        base_name: ["${{ inputs.brand_name }}", "${{ inputs.brand_name }}-dx"]
        stream_name: ["${{ inputs.stream_name }}"]
        architecture: ${{ fromJson(inputs.architecture) }}
        exclude:
          # DX is "legacy", don't build them for arm
          - architecture: aarch64
            base_name: "${{ inputs.brand_name }}-dx"

    steps:
      - name: Checkout
        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false

      - name: Free Up Space
        id: free-disk-space
        uses: hastd/free-disk-space@68572aeaadb7f76bd408246328e95926323402b5 # v0.1.2
        with:
          # Newer runners ship with ~92G of free storage, so we can propably skip cleanup most of the time.
          skip-if-available: "80"

      - name: Configure containers policy for build
        run: |
          sudo ./.github/setup-runner-keys.sh

      - name: Install Just
        run: |
          /home/linuxbrew/.linuxbrew/bin/brew install just
          echo "/home/linuxbrew/.linuxbrew/bin" >> $GITHUB_PATH

      # FIXME: Implement retries for stuff like this
      - name: Install Cosign
        uses: sigstore/cosign-installer@756fe2d284c7292c4e9b62c8a28f1e5629c59532 # v4.1.3
        # be careful when upgrading major versions
        with:
          cosign-release: 'v3.1.4'

      - name: Install ORAS
        uses: oras-project/setup-oras@5e2f2482b30b0cb3e14e67f89a80c88c659a7c63 # v2.0.3

      - name: Check Just Syntax
        shell: bash
        run: |
          just --version
          just check

      - name: Image Name
        shell: bash
        env:
          MATRIX_BASE_NAME: ${{ matrix.base_name }}
          MATRIX_STREAM_NAME: ${{ matrix.stream_name }}
          MATRIX_IMAGE_FLAVOR: ${{ matrix.image_flavor }}
        run: |
          IMAGE_NAME="$(just image_name \
                      --image ${MATRIX_BASE_NAME} \
                      --tag ${MATRIX_STREAM_NAME} \
                      --flavor ${MATRIX_IMAGE_FLAVOR})"

          echo "IMAGE_NAME=${IMAGE_NAME}" >> $GITHUB_ENV

      - name: DNF Package Cache Pull
        shell: bash
        id: pull-cache
        env:
          MATRIX_BASE_NAME: ${{ matrix.base_name }}
          MATRIX_STREAM_NAME: ${{ matrix.stream_name }}
          MATRIX_IMAGE_FLAVOR: ${{ matrix.image_flavor }}
          GITHUB_EVENT_NAME: ${{ github.event_name }}
        run: |
          $(command -v just) \
            setup-cache \
            --image "${MATRIX_BASE_NAME}" \
            --tag "${MATRIX_STREAM_NAME}" \
            --flavor "${MATRIX_IMAGE_FLAVOR}" \
            --ghcr \
            --registry "${IMAGE_REGISTRY}" \
            --pull

      - name: Build Image
        id: build-image
        shell: bash
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} # ghcurl
          MATRIX_BASE_NAME: ${{ matrix.base_name }}
          MATRIX_STREAM_NAME: ${{ matrix.stream_name }}
          MATRIX_IMAGE_FLAVOR: ${{ matrix.image_flavor }}
        run: |
          $(command -v just) \
            repo_organization="${GITHUB_REPOSITORY_OWNER}" \
            build \
            --image "${MATRIX_BASE_NAME}" \
            --tag "${MATRIX_STREAM_NAME}" \
            --flavor "${MATRIX_IMAGE_FLAVOR}" \
            --ghcr \
            --retry-pull

      - name: Write new DNF package cache
        id: push-cache
        shell: bash
        if: inputs.publish
        env:
          MATRIX_BASE_NAME: ${{ matrix.base_name }}
          MATRIX_STREAM_NAME: ${{ matrix.stream_name }}
          MATRIX_IMAGE_FLAVOR: ${{ matrix.image_flavor }}
          GITHUB_EVENT_NAME: ${{ github.event_name }}
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          $(command -v just) \
            setup-cache \
            --image "${MATRIX_BASE_NAME}" \
            --tag "${MATRIX_STREAM_NAME}" \
            --flavor "${MATRIX_IMAGE_FLAVOR}" \
            --ghcr \
            --registry "${IMAGE_REGISTRY}" \
            --github-event "${GITHUB_EVENT_NAME}" \
            --push

      - name: Rechunk Image with Chunkah
        id: rechunker
        env:
          MATRIX_BASE_NAME: ${{ matrix.base_name }}
          MATRIX_STREAM_NAME: ${{ matrix.stream_name }}
          MATRIX_IMAGE_FLAVOR: ${{ matrix.image_flavor }}
        run: |
         $(command -v just) rechunk \
            --image "${MATRIX_BASE_NAME}" \
            --tag "${MATRIX_STREAM_NAME}" \
            --flavor "${MATRIX_IMAGE_FLAVOR}"

      - name: Setup Syft
        id: setup-syft
        if: inputs.publish
        uses: anchore/sbom-action/download-syft@66cbf4bc1f1c0d2edc94016e65bc221b6bb0ad6c # v0.24.3

      - name: Generate SBOM
        if: inputs.publish
        id: generate-sbom
        env:
          MATRIX_BASE_NAME: ${{ matrix.base_name }}
          MATRIX_STREAM_NAME: ${{ matrix.stream_name }}
          MATRIX_IMAGE_FLAVOR: ${{ matrix.image_flavor }}
          SYFT_CMD: ${{ steps.setup-syft.outputs.cmd }}
        run: |
          $(command -v just) gen-sbom \
            --image "${MATRIX_BASE_NAME}" \
            --tag "${MATRIX_STREAM_NAME}" \
            --flavor "${MATRIX_IMAGE_FLAVOR}" \
            "${SYFT_CMD}"

      - name: Secureboot Check
        id: secureboot
        shell: bash
        env:
          MATRIX_BASE_NAME: ${{ matrix.base_name }}
          MATRIX_STREAM_NAME: ${{ matrix.stream_name }}
          MATRIX_IMAGE_FLAVOR: ${{ matrix.image_flavor }}
        run: |
         $(command -v just) secureboot \
            --image "${MATRIX_BASE_NAME}" \
            --tag "${MATRIX_STREAM_NAME}" \
            --flavor "${MATRIX_IMAGE_FLAVOR}"

      - name: Export to OCI Archive
        if: github.event_name == 'pull_request'
        id: oci-archive
        env:
          MATRIX_BASE_NAME: ${{ matrix.base_name }}
          MATRIX_STREAM_NAME: ${{ matrix.stream_name }}
          MATRIX_IMAGE_FLAVOR: ${{ matrix.image_flavor }}
        run: |
          $(command -v just) export-oci \
            --image "${MATRIX_BASE_NAME}" \
            --tag "${MATRIX_STREAM_NAME}" \
            --flavor "${MATRIX_IMAGE_FLAVOR}"

      - name: Upload OCI Archive as Artifact
        if: github.event_name == 'pull_request'
        uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2
        with:
          name: ${{ env.IMAGE_NAME }}-${{ matrix.architecture }}.oci
          path: ${{ env.IMAGE_NAME }}-${{ matrix.architecture }}.oci
          archive: false
          if-no-files-found: error
          retention-days: 1

      - name: Create Bootable Image
        id: bootc-install
        # doing other images is not worth it
        if: github.event_name == 'pull_request' && matrix.base_name == 'aurora' && matrix.image_flavor == 'main'
        # free disk space varies
        continue-on-error: true
        env:
          MATRIX_BASE_NAME: ${{ matrix.base_name }}
          MATRIX_STREAM_NAME: ${{ matrix.stream_name }}
          MATRIX_IMAGE_FLAVOR: ${{ matrix.image_flavor }}
        run: |
          $(command -v just) load-rootful \
            --image "${MATRIX_BASE_NAME}" \
            --tag "${MATRIX_STREAM_NAME}" \
            --flavor "${MATRIX_IMAGE_FLAVOR}" \

          sudo $(command -v just) disk-image \
            --image "${MATRIX_BASE_NAME}" \
            --tag "${MATRIX_STREAM_NAME}" \
            --flavor "${MATRIX_IMAGE_FLAVOR}" \
            --ghcr

      - name: PR Testing Instructions
        if: github.event_name == 'pull_request'
        id: pr-summary
        env:
          IMAGE_NAME: ${{ env.IMAGE_NAME }}
          MATRIX_STREAM_NAME: "${{ matrix.stream_name }}"
        run: |
          echo "Download the .oci file" >> $GITHUB_STEP_SUMMARY
          echo "Rebase: sudo bootc switch --transport oci-archive /path/to/${IMAGE_NAME}".oci >> $GITHUB_STEP_SUMMARY
          echo "Go back to the production image e.g.: sudo bootc switch --enforce-container-sigpolicy ${IMAGE_REGISTRY}/${IMAGE_NAME}:${MATRIX_STREAM_NAME}" >> $GITHUB_STEP_SUMMARY

      - name: Generate tags
        id: generate-tags
        shell: bash
        env:
          MATRIX_BASE_NAME: "${{ matrix.base_name }}"
          MATRIX_STREAM_NAME: "${{ matrix.stream_name }}"
          MATRIX_IMAGE_FLAVOR: "${{ matrix.image_flavor }}"
          IMAGE_NAME: ${{ env.IMAGE_NAME }}
          GITHUB_EVENT_NAME: ${{ github.event_name }}
          GITHUB_EVENT_NUMBER: ${{ github.event.number }}
        run: |
          alias_tags="$(just generate-build-tags \
                      --image "${MATRIX_BASE_NAME}" \
                      --tag "${MATRIX_STREAM_NAME}" \
                      --flavor "${MATRIX_IMAGE_FLAVOR}" \
                      --ghcr \
                      --github-event "${GITHUB_EVENT_NAME}" \
                      --github-number "${GITHUB_EVENT_NUMBER}")"

          echo "Tags for this Action..."
          echo "$alias_tags"
          echo "alias_tags=${alias_tags}" >> $GITHUB_OUTPUT

      # Tag Images
      - name: Tag Images
        shell: bash
        env:
          IMAGE_NAME: ${{ env.IMAGE_NAME }}
          MATRIX_STREAM_NAME: ${{ matrix.stream_name }}
          ALIAS_TAGS: ${{ steps.generate-tags.outputs.alias_tags }}
        run: |
          set -eoux pipefail
          $(command -v just) tag-images \
            --image "${IMAGE_NAME}" \
            --default-tag "${MATRIX_STREAM_NAME}" \
            --tags "${ALIAS_TAGS}"

      - name: Login to GitHub Container Registry
        if: inputs.publish
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          GITHUB_ACTOR: ${{ github.actor }}
        run: |
          just login-registry podman ghcr.io
          # cosign gets credentials from docker
          just login-registry docker ghcr.io

      # 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
        if: inputs.publish
        env:
          IMAGE_REGISTRY: ${{ env.IMAGE_REGISTRY }}
        run: |
          echo "IMAGE_REGISTRY=${IMAGE_REGISTRY,,}" >> $GITHUB_OUTPUT

      # Workaround bugs caused by pushing images but not signing them because of CI flakes
      # FIXME: once https://github.com/containers/podman/issues/27796 resolved
      - name: Push Ephemeral Tag
        if: inputs.publish
        id: pre-push
        env:
          MATRIX_BASE_NAME: "${{ matrix.base_name }}"
          MATRIX_IMAGE_FLAVOR: "${{ matrix.image_flavor }}"
          MATRIX_STREAM_NAME: "${{ matrix.stream_name }}"
          TEMP_PUSH_TAG: "staging"
        run: |
            set -euox pipefail

            $(command -v just) push-image \
              --image "${MATRIX_BASE_NAME}" \
              --tag "${MATRIX_STREAM_NAME}" \
              --flavor "${MATRIX_IMAGE_FLAVOR}" \
              --ghcr \
              --registry "${IMAGE_REGISTRY}" \
              --temp-push \
              --temp-push-tag "${TEMP_PUSH_TAG}"

            digest=$(< /tmp/digestfile)
            echo "digest=${digest}" >> $GITHUB_OUTPUT

            echo '## Temporary digest'>> "$GITHUB_STEP_SUMMARY"
            echo '```' >> "$GITHUB_STEP_SUMMARY"
            echo "${digest}" >> "$GITHUB_STEP_SUMMARY"
            echo '```' >> "$GITHUB_STEP_SUMMARY"

      - name: Sign container image
        if: inputs.publish
        env:
          DIGEST: ${{ steps.pre-push.outputs.digest }}
          COSIGN_EXPERIMENTAL: false
          COSIGN_PRIVATE_KEY: ${{ secrets.SIGNING_SECRET }}
          IMAGE_NAME: ${{ env.IMAGE_NAME }}
        run: |
          # use old bundle format, so we can use newer cosign 3.X.X instead of 2.X.X
          # https://github.com/containers/container-libs/issues/388
          # https://github.com/coreos/rpm-ostree/issues/5509
          cosign sign -y --new-bundle-format=false --use-signing-config=false --key env://COSIGN_PRIVATE_KEY ${IMAGE_REGISTRY}/${IMAGE_NAME}@${DIGEST}

      - name: Push to GHCR
        id: push
        if: inputs.publish
        env:
          MATRIX_BASE_NAME: "${{ matrix.base_name }}"
          MATRIX_STREAM_NAME: "${{ matrix.stream_name }}"
          MATRIX_IMAGE_FLAVOR: "${{ matrix.image_flavor }}"
        run: |
            set -euox pipefail

            $(command -v just) push-image \
              --image "${MATRIX_BASE_NAME}" \
              --tag "${MATRIX_STREAM_NAME}" \
              --flavor "${MATRIX_IMAGE_FLAVOR}" \
              --ghcr \
              --registry "${IMAGE_REGISTRY}"

            digest=$(< /tmp/digestfile)
            echo "digest=${digest}" >> $GITHUB_OUTPUT

            echo '## Production digest'>> "$GITHUB_STEP_SUMMARY"
            echo '```' >> "$GITHUB_STEP_SUMMARY"
            echo "${digest}" >> "$GITHUB_STEP_SUMMARY"
            echo '```' >> "$GITHUB_STEP_SUMMARY"

      - name: Login to GitHub Container Registry with ORAS
        if: inputs.publish
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          GITHUB_ACTOR: ${{ github.actor }}
        run: |
          just login-registry oras ghcr.io

      - name: Attach SBOM
        if: inputs.publish
        id: attach-sbom
        env:
          MATRIX_BASE_NAME: "${{ matrix.base_name }}"
          MATRIX_STREAM_NAME: "${{ matrix.stream_name }}"
          MATRIX_IMAGE_FLAVOR: "${{ matrix.image_flavor }}"
          DIGEST: ${{ steps.pre-push.outputs.digest }}
        run: |
          set -euox pipefail

          $(command -v just) attach-sbom \
            --image "${MATRIX_BASE_NAME}" \
            --tag "${MATRIX_STREAM_NAME}" \
            --flavor "${MATRIX_IMAGE_FLAVOR}" \
            --registry "${IMAGE_REGISTRY}" \
            --digest "${DIGEST}"

          sbom_digest=$(< /tmp/sbom-digestfile)
          echo "sbom_digest=${sbom_digest}" >> $GITHUB_OUTPUT

      - name: Sign SBOM OCI Artifact
        if: inputs.publish
        env:
          COSIGN_EXPERIMENTAL: false
          COSIGN_PRIVATE_KEY: ${{ secrets.SIGNING_SECRET }}
          IMAGE_NAME: ${{ env.IMAGE_NAME }}
          SBOM_DIGEST: ${{ steps.attach-sbom.outputs.sbom_digest }}
        run: |
          cosign sign -y --use-signing-config=false --key env://COSIGN_PRIVATE_KEY ${IMAGE_REGISTRY}/${IMAGE_NAME}@${SBOM_DIGEST}

      - name: Attestation
        if: inputs.publish
        uses: actions/attest@1e69f48acb82d1966a394da916b4c1698aa569d6 # v4.2.2
        with:
          subject-name: ${{ env.IMAGE_REGISTRY }}/${{ env.IMAGE_NAME }}
          subject-digest: ${{ steps.pre-push.outputs.digest }}
          # Keep this disabled, this confuses cosign verify
          push-to-registry: false

      - name: Disk usage summary
        if: always()
        run: |
          echo "### Disk usage" >> "$GITHUB_STEP_SUMMARY"
          echo '```' >> "$GITHUB_STEP_SUMMARY"
          df -h >> "$GITHUB_STEP_SUMMARY"
          echo '```' >> "$GITHUB_STEP_SUMMARY"

  check:
    name: Check all ${{ matrix.stream_name }} builds successful
    if: always()
    runs-on: ubuntu-slim
    needs: [build_container]
    steps:
      - name: Check Jobs
        env:
          JOBS: ${{ toJson(needs) }}
        run: |
          echo "Job status:"
          echo $JOBS | jq -r 'to_entries[] | " - \(.key): \(.value.result)"'

          for i in $(echo $JOBS | jq -r 'to_entries[] | .value.result'); do
            if [ "$i" != "success" ] && [ "$i" != "skipped" ]; then
              echo ""
              echo "Status check not okay!"
              exit 1
            fi
          done