constellation/.github/workflows/build-os-image.yml

name: Build and Upload OS image

on:
  workflow_dispatch:
    inputs:
      imageVersion:
        description: "Semantic version including patch e.g. v<major>.<minor>.<patch> (only used for releases)"
        required: false
      isRelease:
        description: 'Is this a release? (sets "ref" to special value "-")'
        type: boolean
        required: false
        default: false
      stream:
        description: "Image stream / type. (Use 'stable' for releases, 'nightly' for regular non-release images, 'console' for images with serial console access and 'debug' for debug builds)"
        type: choice
        required: true
        options:
          - "debug"
          - "console"
          - "nightly"
          - "stable"
      ref:
        type: string
        description: "Git ref to checkout"
        required: false
  workflow_call:
    inputs:
      imageVersion:
        description: "Semantic version including patch e.g. v<major>.<minor>.<patch> (only used for releases)"
        required: false
        type: string
      isRelease:
        description: 'Is this a release? (sets "ref" to special value "-")'
        type: boolean
        required: false
        default: false
      stream:
        description: "Image stream / type. (Use 'stable' for releases, 'nightly' for regular non-release images and 'debug' for debug builds)"
        type: string
        required: true
      ref:
        type: string
        description: "Git ref to checkout"
        required: false

jobs:
  build-settings:
    name: "Determine build settings"
    runs-on: ubuntu-22.04
    outputs:
      ref: ${{ steps.ref.outputs.ref }}
      stream: ${{ steps.stream.outputs.stream }}
      imageType: ${{ steps.image-type.outputs.imageType }}
      imageVersion: ${{ steps.image-version.outputs.imageVersion }}
      imageName: ${{ steps.image-version.outputs.imageName }}
      imageNameShort: ${{ steps.image-version.outputs.imageNameShort }}
      imageApiBasePath: ${{ steps.image-version.outputs.imageApiBasePath }}
      cliApiBasePath: ${{ steps.image-version.outputs.cliApiBasePath }}
    steps:
      - name: Checkout
        uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
        with:
          ref: ${{ inputs.ref || github.head_ref }}

      - name: Determine version
        id: version
        uses: ./.github/actions/pseudo_version

      - name: Determine ref
        id: ref
        run: |
          if [[ "${{ inputs.isRelease }}" = "true" ]]; then
            echo "ref=-" | tee -a "$GITHUB_OUTPUT"
          else
            echo "ref=${{ steps.version.outputs.branchName }}" | tee -a "$GITHUB_OUTPUT"
          fi          

      - name: Determine and validate stream
        id: stream
        run: |
          if [[ "${{ inputs.isRelease }}" == "true" ]] && [[ "${{ inputs.stream }}" == "nightly" ]]; then
            echo "Nightly builds are not allowed for releases"
            exit 1
          fi
          if [[ "${{ inputs.isRelease }}" != "true" ]] && [[ "${{ inputs.stream }}" == "stable" ]]; then
            echo "Stable builds are only allowed for releases"
            exit 1
          fi

          echo "stream=${{ inputs.stream }}" | tee -a "$GITHUB_OUTPUT"          

      - name: Determine type of image build
        shell: bash
        id: image-type
        run: |
          case "${{ steps.stream.outputs.stream }}" in
            "debug")
              echo "imageType=debug" | tee -a "$GITHUB_OUTPUT"
              ;;
            "console")
              echo "imageType=console" | tee -a "$GITHUB_OUTPUT"
              ;;
            *)
              echo "imageType=default" | tee -a "$GITHUB_OUTPUT"
              ;;
          esac          

      - name: Determine image version
        id: image-version
        shell: bash
        env:
          REF: ${{ steps.ref.outputs.ref }}
          STREAM: ${{ steps.stream.outputs.stream }}
          IMAGE_VERSION: ${{ inputs.imageVersion || steps.version.outputs.version }}
        run: |
          {
            echo "imageVersion=${IMAGE_VERSION}"
            echo "imageName=ref/${REF}/stream/${STREAM}/${IMAGE_VERSION}"
            echo "imageApiBasePath=constellation/v1/ref/${REF}/stream/${STREAM}/${IMAGE_VERSION}/image"
            echo "cliApiBasePath=constellation/v1/ref/${REF}/stream/${STREAM}/${IMAGE_VERSION}/cli"
          } | tee -a "$GITHUB_OUTPUT"

          if [[ "${REF}" = "-" ]] && [[ "${STREAM}" = "stable" ]]; then
            echo "imageNameShort=${IMAGE_VERSION}" | tee -a "$GITHUB_OUTPUT"
          elif [[ "${REF}" = "-" ]]; then
            echo "imageNameShort=stream/${STREAM}/${IMAGE_VERSION}" | tee -a "$GITHUB_OUTPUT"
          else
            echo "imageNameShort=ref/${REF}/stream/${STREAM}/${IMAGE_VERSION}" | tee -a "$GITHUB_OUTPUT"
          fi          

  make-os-image:
    name: "Build OS using mkosi"
    needs: [build-settings]
    runs-on: ubuntu-latest-8-cores
    strategy:
      fail-fast: false
      matrix:
        include:
          - csp: aws
            attestation_variant: aws-nitro-tpm
          - csp: aws
            attestation_variant: aws-sev-snp
          - csp: azure
            attestation_variant: azure-sev-snp
          - csp: gcp
            attestation_variant: gcp-sev-es
          - csp: gcp
            attestation_variant: gcp-sev-snp
          - csp: qemu
            attestation_variant: qemu-vtpm
          - csp: openstack
            attestation_variant: qemu-vtpm
    steps:
      - name: Checkout
        uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
        with:
          ref: ${{ inputs.ref || github.head_ref }}

      - uses: ./.github/actions/setup_bazel_nix
        with:
          useCache: "false"

      - name: Build
        id: build
        shell: bash
        working-directory: ${{ github.workspace }}/image
        env:
          TARGET: //image/system:${{ matrix.csp }}_${{ matrix.attestation_variant }}_${{ needs.build-settings.outputs.stream }}
        run: |
          echo "::group::Build"
          bazel build //image/base:rpmdb
          bazel build "${TARGET}"
          {
            echo "image-dir=$(bazel cquery --output=files "$TARGET")"
            echo "rpmdb=$(bazel cquery --output=files //image/base:rpmdb)"
          } | tee -a "$GITHUB_OUTPUT"
          echo "::endgroup::"          

      - name: Upload raw OS image as artifact
        uses: actions/upload-artifact@a8a3f3ad30e3422c9c7b888a15615d19a852ae32 # v3.1.3
        with:
          name: image-${{ matrix.csp }}-${{ matrix.attestation_variant }}
          path: ${{ steps.build.outputs.image-dir }}/constellation.raw

      - name: Upload individual OS parts as artifacts
        uses: actions/upload-artifact@a8a3f3ad30e3422c9c7b888a15615d19a852ae32 # v3.1.3
        with:
          name: parts-${{ matrix.csp }}-${{ matrix.attestation_variant }}
          path: |
            ${{ steps.build.outputs.image-dir }}/constellation.efi
            ${{ steps.build.outputs.image-dir }}/constellation.initrd
            ${{ steps.build.outputs.image-dir }}/constellation.vmlinuz            

      - name: Upload sbom info as artifact
        uses: actions/upload-artifact@0b7f8abb1508181956e8e162db84b466c27e18ce # v3.1.2
        with:
          name: sbom-${{ matrix.csp }}-${{ matrix.attestation_variant }}
          path: ${{ steps.build.outputs.rpmdb }}

  upload-os-image:
    name: "Upload OS image to CSP"
    needs: [build-settings, make-os-image]
    runs-on: ubuntu-22.04
    permissions:
      id-token: write
      contents: read
    strategy:
      fail-fast: false
      matrix:
        include:
          - csp: aws
            attestation_variant: aws-nitro-tpm
          - csp: aws
            attestation_variant: aws-sev-snp
          - csp: azure
            attestation_variant: azure-sev-snp
          - csp: gcp
            attestation_variant: gcp-sev-es
          - csp: gcp
            attestation_variant: gcp-sev-snp
          - csp: qemu
            attestation_variant: qemu-vtpm
          - csp: openstack
            attestation_variant: qemu-vtpm
    env:
      RAW_IMAGE_PATH: mkosi.output.${{ matrix.csp }}_${{ matrix.attestation_variant }}/fedora~38/constellation.raw
      JSON_OUTPUT: mkosi.output.${{ matrix.csp }}_${{ matrix.attestation_variant }}/fedora~38/image-upload.json
      AZURE_IMAGE_PATH: mkosi.output.azure_${{ matrix.attestation_variant }}/fedora~38/image.vhd
      GCP_IMAGE_PATH: mkosi.output.gcp_${{ matrix.attestation_variant }}/fedora~38/image.tar.gz
      SHORTNAME: ${{ needs.build-settings.outputs.imageNameShort }}
      ATTESTATION_VARIANT: ${{ matrix.attestation_variant }}
    steps:
      - name: Checkout
        uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
        with:
          ref: ${{ inputs.ref || github.head_ref }}

      - uses: ./.github/actions/setup_bazel_nix
        with:
          useCache: "false"

      - name: Download OS image artifact
        uses: actions/download-artifact@9bc31d5ccc31df68ecc42ccf4149144866c47d8a # v3.0.2
        with:
          name: image-${{ matrix.csp }}-${{ matrix.attestation_variant }}
          path: ${{ github.workspace }}/image/mkosi.output.${{ matrix.csp }}_${{ matrix.attestation_variant }}/fedora~38

      - name: Install tools
        shell: bash
        run: |
          echo "::group::Install tools"
          sudo apt-get update
          sudo apt-get install -y \
            pigz \
            qemu-utils \
            python3-pip
          echo "::endgroup::"          

      - name: Login to AWS
        uses: aws-actions/configure-aws-credentials@010d0da01d0b5a38af31e9c3470dbfdabdecca3a # v4.0.1
        with:
          role-to-assume: arn:aws:iam::795746500882:role/GitHubConstellationImagePipeline
          aws-region: eu-central-1

      - name: Login to Azure
        if: matrix.csp == 'azure'
        uses: ./.github/actions/login_azure
        with:
          azure_credentials: ${{ secrets.AZURE_CREDENTIALS }}

      - name: Login to GCP
        if: matrix.csp == 'gcp'
        uses: ./.github/actions/login_gcp
        with:
          service_account: "constellation-cos-builder@constellation-331613.iam.gserviceaccount.com"

      - name: Upload AWS image
        if: matrix.csp == 'aws'
        shell: bash
        working-directory: ${{ github.workspace }}/image
        run: |
          echo "::group::Upload AWS image"
          bazel run //image/upload -- image aws \
            --verbose \
            --raw-image "${RAW_IMAGE_PATH}" \
            --attestation-variant "${ATTESTATION_VARIANT}" \
            --version "${SHORTNAME}" \
            --out "${JSON_OUTPUT}"
          echo -e "Uploaded AWS image: \n\n\`\`\`\n$(jq < "${JSON_OUTPUT}")\n\`\`\`\n" >> "$GITHUB_STEP_SUMMARY"
          echo "::endgroup::"          

      - name: Upload GCP image
        if: matrix.csp == 'gcp'
        shell: bash
        working-directory: ${{ github.workspace }}/image
        run: |
          echo "::group::Upload GCP image"
          upload/pack.sh gcp "${RAW_IMAGE_PATH}" "${GCP_IMAGE_PATH}"
          bazel run //image/upload -- image gcp \
            --verbose \
            --raw-image "${GCP_IMAGE_PATH}" \
            --attestation-variant "${ATTESTATION_VARIANT}" \
            --version "${SHORTNAME}" \
            --out "${JSON_OUTPUT}"
          echo -e "Uploaded GCP image: \n\n\`\`\`\n$(jq < "${JSON_OUTPUT}")\n\`\`\`\n" >> "$GITHUB_STEP_SUMMARY"
          echo "::endgroup::"          

      - name: Upload Azure image
        if: matrix.csp == 'azure'
        shell: bash
        working-directory: ${{ github.workspace }}/image
        run: |
          echo "::group::Upload Azure image"
          upload/pack.sh azure "${RAW_IMAGE_PATH}" "${AZURE_IMAGE_PATH}"
          bazel run //image/upload -- image azure \
            --verbose \
            --raw-image "${AZURE_IMAGE_PATH}" \
            --attestation-variant "${ATTESTATION_VARIANT}" \
            --version "${SHORTNAME}" \
            --out "${JSON_OUTPUT}"
          echo -e "Uploaded Azure image: \n\n\`\`\`\n$(jq < "${JSON_OUTPUT}")\n\`\`\`\n" >> "$GITHUB_STEP_SUMMARY"
          echo "::endgroup::"          

      - name: Upload OpenStack image
        if: matrix.csp == 'openstack'
        shell: bash
        working-directory: ${{ github.workspace }}/image
        run: |
          echo "::group::Upload OpenStack image"
          bazel run //image/upload -- image openstack \
            --verbose \
            --raw-image "${RAW_IMAGE_PATH}" \
            --attestation-variant "${ATTESTATION_VARIANT}" \
            --version "${SHORTNAME}" \
            --out "${JSON_OUTPUT}"
          echo -e "Uploaded OpenStack image: \n\n\`\`\`\n$(jq < "${JSON_OUTPUT}")\n\`\`\`\n" >> "$GITHUB_STEP_SUMMARY"
          echo "::endgroup::"          

      - name: Upload QEMU image
        if: matrix.csp == 'qemu'
        shell: bash
        working-directory: ${{ github.workspace }}/image
        run: |
          echo "::group::Upload QEMU image"
          bazel run //image/upload -- image qemu \
            --verbose \
            --raw-image "${RAW_IMAGE_PATH}" \
            --attestation-variant "${ATTESTATION_VARIANT}" \
            --version "${SHORTNAME}" \
            --out "${JSON_OUTPUT}"
          echo -e "Uploaded QEMU image: \n\n\`\`\`\n$(jq < "${JSON_OUTPUT}")\n\`\`\`\n" >> "$GITHUB_STEP_SUMMARY"
          echo "::endgroup::"          

      - name: Upload image lookup table as artifact
        uses: actions/upload-artifact@a8a3f3ad30e3422c9c7b888a15615d19a852ae32 # v3.1.3
        with:
          name: lookup-table
          path: ${{ github.workspace }}/image/mkosi.output.*/*/image-upload*.json

  calculate-pcrs:
    name: "Calculate PCRs"
    needs: [build-settings, make-os-image]
    permissions:
      id-token: write
      contents: read
    runs-on: ubuntu-22.04
    strategy:
      fail-fast: false
      matrix:
        include:
          - csp: aws
            attestation_variant: aws-nitro-tpm
          - csp: aws
            attestation_variant: aws-sev-snp
          - csp: azure
            attestation_variant: azure-sev-snp
          - csp: gcp
            attestation_variant: gcp-sev-es
          - csp: gcp
            attestation_variant: gcp-sev-snp
          - csp: qemu
            attestation_variant: qemu-vtpm
          - csp: openstack
            attestation_variant: qemu-vtpm
    steps:
      - name: Checkout repository
        uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
        with:
          ref: ${{ inputs.ref || github.head_ref }}

      - name: Download OS image artifact
        uses: actions/download-artifact@9bc31d5ccc31df68ecc42ccf4149144866c47d8a # v3.0.2
        with:
          name: image-${{ matrix.csp }}-${{ matrix.attestation_variant }}

      - uses: ./.github/actions/setup_bazel_nix
        with:
          useCache: "false"

      - name: Install dependencies
        run: |
          echo "::group::Install dependencies"
          sudo apt-get update
          sudo apt-get install -y systemd-container # for systemd-dissect
          echo "::endgroup::"          

      - name: Calculate expected PCRs
        working-directory: ${{ github.workspace }}/image/measured-boot
        run: |
          echo "::group::Calculate expected PCRs"
          bazel run --run_under="sudo -E" //image/measured-boot/cmd ${{ github.workspace }}/constellation.raw ${{ github.workspace }}/pcrs-${{ matrix.csp }}-${{ matrix.attestation_variant }}.json >> "$GITHUB_STEP_SUMMARY"
          echo "::endgroup::"          

      - name: Add static PCRs
        run: |
          case ${{ matrix.csp }} in
            aws)
              yq e '.csp = "AWS" |
                .attestationVariant = "${{ matrix.attestation_variant }}" |
                .measurements.0.warnOnly = true |
                .measurements.0.expected = "737f767a12f54e70eecbc8684011323ae2fe2dd9f90785577969d7a2013e8c12" |
                .measurements.2.warnOnly = true |
                .measurements.2.expected = "3d458cfe55cc03ea1f443f1562beec8df51c75e14a9fcf9a7234a13f198e7969" |
                .measurements.3.warnOnly = true |
                .measurements.3.expected = "3d458cfe55cc03ea1f443f1562beec8df51c75e14a9fcf9a7234a13f198e7969" |
                .measurements.4.warnOnly = false |
                .measurements.6.warnOnly = true |
                .measurements.6.expected = "3d458cfe55cc03ea1f443f1562beec8df51c75e14a9fcf9a7234a13f198e7969" |
                .measurements.8.warnOnly = false |
                .measurements.9.warnOnly = false |
                .measurements.11.warnOnly = false |
                .measurements.12.warnOnly = false |
                .measurements.13.warnOnly = false |
                .measurements.14.warnOnly = true |
                .measurements.14.expected = "0000000000000000000000000000000000000000000000000000000000000000" |
                .measurements.15.warnOnly = false' \
                -I 0 -o json -i "${{ github.workspace }}/pcrs-${{ matrix.csp }}-${{ matrix.attestation_variant }}.json"
            ;;
            azure)
              yq e '.csp = "Azure" |
                .attestationVariant = "${{ matrix.attestation_variant }}" |
                .measurements.1.warnOnly = true |
                .measurements.1.expected = "3d458cfe55cc03ea1f443f1562beec8df51c75e14a9fcf9a7234a13f198e7969" |
                .measurements.2.warnOnly = true |
                .measurements.2.expected = "3d458cfe55cc03ea1f443f1562beec8df51c75e14a9fcf9a7234a13f198e7969" |
                .measurements.3.warnOnly = true |
                .measurements.3.expected = "3d458cfe55cc03ea1f443f1562beec8df51c75e14a9fcf9a7234a13f198e7969" |
                .measurements.4.warnOnly = false |
                .measurements.8.warnOnly = false |
                .measurements.9.warnOnly = false |
                .measurements.11.warnOnly = false |
                .measurements.12.warnOnly = false |
                .measurements.13.warnOnly = false |
                .measurements.14.warnOnly = true |
                .measurements.14.expected = "0000000000000000000000000000000000000000000000000000000000000000" |
                .measurements.15.warnOnly = false' \
                -I 0 -o json -i "${{ github.workspace }}/pcrs-${{ matrix.csp }}-${{ matrix.attestation_variant }}.json"
            ;;
            gcp)
              yq e '.csp = "GCP" |
                .attestationVariant = "${{ matrix.attestation_variant }}" |
                .measurements.1.warnOnly = true |
                .measurements.1.expected = "745f2fb4235e4647aa0ad5ace781cd929eb68c28870e7dd5d1a1535854325e56" |
                .measurements.2.warnOnly = true |
                .measurements.2.expected = "3d458cfe55cc03ea1f443f1562beec8df51c75e14a9fcf9a7234a13f198e7969" |
                .measurements.3.warnOnly = true |
                .measurements.3.expected = "3d458cfe55cc03ea1f443f1562beec8df51c75e14a9fcf9a7234a13f198e7969" |
                .measurements.4.warnOnly = false |
                .measurements.6.warnOnly = true |
                .measurements.6.expected = "3d458cfe55cc03ea1f443f1562beec8df51c75e14a9fcf9a7234a13f198e7969" |
                .measurements.8.warnOnly = false |
                .measurements.9.warnOnly = false |
                .measurements.11.warnOnly = false |
                .measurements.12.warnOnly = false |
                .measurements.13.warnOnly = false |
                .measurements.14.warnOnly = true |
                .measurements.14.expected = "0000000000000000000000000000000000000000000000000000000000000000" |
                .measurements.15.warnOnly = false' \
                -I 0 -o json -i "${{ github.workspace }}/pcrs-${{ matrix.csp }}-${{ matrix.attestation_variant }}.json"
            ;;
            openstack)
              yq e '.csp = "OpenStack" |
                .attestationVariant = "${{ matrix.attestation_variant }}" |
                .measurements.4.warnOnly = false |
                .measurements.8.warnOnly = false |
                .measurements.9.warnOnly = false |
                .measurements.11.warnOnly = false |
                .measurements.12.warnOnly = false |
                .measurements.13.warnOnly = false |
                .measurements.14.warnOnly = true |
                .measurements.14.expected = "0000000000000000000000000000000000000000000000000000000000000000" |
                .measurements.15.warnOnly = false' \
                -I 0 -o json -i "${{ github.workspace }}/pcrs-${{ matrix.csp }}-${{ matrix.attestation_variant }}.json"
            ;;
            qemu)
              yq e '.csp = "QEMU" |
                .attestationVariant = "${{ matrix.attestation_variant }}" |
                .measurements.4.warnOnly = false |
                .measurements.8.warnOnly = false |
                .measurements.9.warnOnly = false |
                .measurements.11.warnOnly = false |
                .measurements.12.warnOnly = false |
                .measurements.13.warnOnly = false |
                .measurements.14.warnOnly = true |
                .measurements.14.expected = "0000000000000000000000000000000000000000000000000000000000000000" |
                .measurements.15.warnOnly = false' \
                -I 0 -o json -i "${{ github.workspace }}/pcrs-${{ matrix.csp }}-${{ matrix.attestation_variant }}.json"
            ;;
            *)
              echo "Unknown CSP: ${{ matrix.csp }}"
              exit 1
            ;;
          esac

          # TODO (malt3): Calculate PCR from firmware blob.
          # AWS SNP machines have a different expected value for PCR 0.
          if [[ ${{ matrix.attestation_variant }} = "aws-sev-snp" ]]
          then
            yq e '.csp = "AWS" |
                  .measurements.0.expected = "7b068c0c3ac29afe264134536b9be26f1d4ccd575b88d3c3ceabf36ac99c0278"' \
                  -I 0 -o json -i "${{ github.workspace }}/pcrs-${{ matrix.csp }}-${{ matrix.attestation_variant }}.json"
          fi          

      - name: Envelope measurements
        shell: bash
        run: |
          echo "::group::Envelope measurements"
          bazel run //image/upload -- measurements envelope \
            --in "${{ github.workspace }}/pcrs-${{ matrix.csp }}-${{ matrix.attestation_variant }}.json" \
            --out "${{ github.workspace }}/pcrs-${{ matrix.csp }}-${{ matrix.attestation_variant }}.json" \
            --version "${{ needs.build-settings.outputs.imageNameShort }}" \
            --csp "${{ matrix.csp }}" \
            --attestation-variant "${{ matrix.attestation_variant }}"
          echo "::endgroup::"          

      - name: Upload expected measurements as artifact
        uses: actions/upload-artifact@a8a3f3ad30e3422c9c7b888a15615d19a852ae32 # v3.1.3
        with:
          name: measurements
          path: pcrs-${{ matrix.csp }}-${{ matrix.attestation_variant }}.json

  upload-pcrs:
    name: "Sign & upload PCRs"
    needs: [build-settings, calculate-pcrs]
    permissions:
      id-token: write
      contents: read
    runs-on: ubuntu-22.04
    steps:
      - name: Checkout repository
        uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
        with:
          ref: ${{ inputs.ref || github.head_ref }}

      - uses: ./.github/actions/setup_bazel_nix
        with:
          useCache: "false"

      - name: Download measurements
        uses: actions/download-artifact@9bc31d5ccc31df68ecc42ccf4149144866c47d8a # v3.0.2
        with:
          name: measurements

      - name: Login to AWS
        uses: aws-actions/configure-aws-credentials@010d0da01d0b5a38af31e9c3470dbfdabdecca3a # v4.0.1
        with:
          role-to-assume: arn:aws:iam::795746500882:role/GitHubConstellationImagePipeline
          aws-region: eu-central-1

      - name: Install Cosign
        uses: sigstore/cosign-installer@c85d0e205a72a294fe064f618a87dbac13084086 # v2.8.1

      - name: Install Rekor
        shell: bash
        run: |
          curl -fsSLO https://github.com/sigstore/rekor/releases/download/v0.12.0/rekor-cli-linux-amd64
          sudo install rekor-cli-linux-amd64 /usr/local/bin/rekor-cli
          rm rekor-cli-linux-amd64          

      - name: Merge measurements
        shell: bash
        run: |
          echo "::group::Merge measurements"
          bazel run //image/upload -- measurements merge \
            --out measurements.json \
            pcrs-*.json
          echo "::endgroup::"          

      - name: Sign measurements
        if: inputs.stream != 'debug'
        shell: bash
        env:
          COSIGN_PUBLIC_KEY: ${{ inputs.isRelease && secrets.COSIGN_PUBLIC_KEY || secrets.COSIGN_DEV_PUBLIC_KEY }}
          COSIGN_PRIVATE_KEY: ${{ inputs.isRelease && secrets.COSIGN_PRIVATE_KEY || secrets.COSIGN_DEV_PRIVATE_KEY }}
          COSIGN_PASSWORD: ${{ inputs.isRelease && secrets.COSIGN_PASSWORD || secrets.COSIGN_DEV_PASSWORD }}
        run: |
          echo "${COSIGN_PUBLIC_KEY}" > cosign.pub
          # Enabling experimental mode also publishes signature to Rekor
          COSIGN_EXPERIMENTAL=1 cosign sign-blob --key env://COSIGN_PRIVATE_KEY \
            "${{ github.workspace }}/measurements.json" > "${{ github.workspace }}/measurements.json.sig"
          # Verify - As documentation & check
          # Local Signature (input: artifact, key, signature)
          cosign verify-blob --key cosign.pub \
            --signature "measurements.json.sig" \
            "measurements.json"
          # Transparency Log Signature (input: artifact, key)
          uuid=$(rekor-cli search --artifact "${{ github.workspace }}/measurements.json" | tail -n 1)
          sig=$(rekor-cli get --uuid="${uuid}" --format=json | jq -r .Body.HashedRekordObj.signature.content)
          cosign verify-blob --key cosign.pub --signature <(echo "${sig}") "${{ github.workspace }}/measurements.json"          

      - name: Create stub signature file
        if: inputs.stream == 'debug'
        shell: bash
        run: |
          echo "THOSE MEASUREMENTS BELONG TO A DEBUG IMAGE. THOSE ARE NOT SINGED BY ANY KEY." > "${{ github.workspace }}/measurements.json.sig"          

      - name: Upload measurements
        shell: bash
        run: |
          echo "::group::Upload measurements"
          bazel run //image/upload -- measurements upload \
            --measurements measurements.json \
            --signature measurements.json.sig
          echo "::endgroup::"          

  upload-sbom:
    name: "Upload SBOM"
    needs: [build-settings, make-os-image]
    permissions:
      id-token: write
      contents: read
    runs-on: ubuntu-22.04
    steps:
      - name: Login to AWS
        uses: aws-actions/configure-aws-credentials@010d0da01d0b5a38af31e9c3470dbfdabdecca3a # v4.0.1
        with:
          role-to-assume: arn:aws:iam::795746500882:role/GitHubConstellationImagePipeline
          aws-region: eu-central-1

      - name: Download sbom
        uses: actions/download-artifact@9bc31d5ccc31df68ecc42ccf4149144866c47d8a # v3.0.2
        with:
          # downloading / using only the QEMU manifest is fine
          # since the images only differ in the ESP partition
          name: sbom-qemu-qemu-vtpm

      - name: Upload SBOMs to S3
        shell: bash
        run: |
          aws s3 cp \
          rpmdb.tar \
            "s3://cdn-constellation-backend/${{needs.build-settings.outputs.imageApiBasePath}}/${file}" \
            --no-progress          

  upload-artifacts:
    name: "Upload image lookup table and CLI compatibility info"
    runs-on: ubuntu-22.04
    needs: [build-settings, upload-os-image]
    permissions:
      id-token: write
      contents: read
    steps:
      - name: Checkout repository
        uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
        with:
          ref: ${{ inputs.ref || github.head_ref }}

      - uses: ./.github/actions/setup_bazel_nix
        with:
          useCache: "false"

      - name: Download image lookup table
        uses: actions/download-artifact@9bc31d5ccc31df68ecc42ccf4149144866c47d8a # v3
        with:
          name: lookup-table

      - name: Login to AWS
        uses: aws-actions/configure-aws-credentials@010d0da01d0b5a38af31e9c3470dbfdabdecca3a # v4.0.1
        with:
          role-to-assume: arn:aws:iam::795746500882:role/GitHubConstellationImagePipeline
          aws-region: eu-central-1

      - name: Upload lookup table to S3
        shell: bash
        run: bazel run //image/upload -- info --verbose mkosi.output.*/*/image-upload*.json

      - name: Checkout
        uses: actions/checkout@f43a0e5ff2bd294095638e18286ca9a3d1956744 # v3.6.0
        with:
          ref: ${{ inputs.ref || github.head_ref }}

      - name: Create CLI compatibility information artifact
        shell: bash
        run: |
          bazel run //hack/cli-k8s-compatibility -- \
            --ref=${{  needs.build-settings.outputs.ref }} \
            --stream=${{  needs.build-settings.outputs.stream }} \
            --version=${{  needs.build-settings.outputs.imageVersion }} \          

  add-image-version-to-versionsapi:
    needs: [upload-artifacts, upload-pcrs, build-settings]
    name: "Add image version to versionsapi"
    if: needs.build-settings.outputs.ref != '-'
    permissions:
      contents: read
      id-token: write
    uses: ./.github/workflows/versionsapi.yml
    with:
      command: add
      ref: ${{ needs.build-settings.outputs.ref }}
      stream: ${{ needs.build-settings.outputs.stream }}
      version: ${{ needs.build-settings.outputs.imageVersion }}
      kind: "image"
      add_latest: true

  add-cli-version-to-versionsapi:
    needs: [upload-artifacts, build-settings, add-image-version-to-versionsapi]
    name: "Add CLI version to versionsapi"
    if: needs.build-settings.outputs.ref != '-'
    permissions:
      contents: read
      id-token: write
    uses: ./.github/workflows/versionsapi.yml
    with:
      command: add
      ref: ${{ needs.build-settings.outputs.ref }}
      stream: ${{ needs.build-settings.outputs.stream }}
      version: ${{ needs.build-settings.outputs.imageVersion }}
      kind: "cli"
      add_latest: true