layers_partition_verify.yml

# Partition Layer Verification
# ---
# This workflow queries the Partition layer info in production only

on:
  workflow_dispatch:
    inputs:
      environment:
        description: Deployment environment
        type: choice
        options:
          - Gamma
          - Prod
        required: true
      version:
        description: Layer version to verify
        type: string
        required: true
      partition_version:
        description: Layer version to verify, this is mostly used in Gamma where a version mismatch might exist
        type: string
        required: false
      partition:
        description: Partition to deploy to
        type: choice
        options:
          - China
          - GovCloud
  workflow_call:
    inputs:
      environment:
        description: Deployment environment
        type: string
        required: true
      version:
        description: Layer version to verify
        type: string
        required: true
      partition_version:
        description: Partition Layer version to verify, this is mostly used in Gamma where a version mismatch might exist
        type: string
        required: false

name: Layer Verification (Partition)
run-name: Layer Verification (${{ inputs.partition }}) - ${{ inputs.environment }} / Version - ${{ inputs.version }}

permissions: {}

jobs:
  setup:
    runs-on: ubuntu-latest
    outputs:
      regions: ${{ format('{0}{1}', steps.regions_china.outputs.regions, steps.regions_govcloud.outputs.regions) }}
      partition: ${{ format('{0}{1}', steps.regions_china.outputs.partition, steps.regions_govcloud.outputs.partition) }}
      aud: ${{ format('{0}{1}', steps.regions_china.outputs.aud, steps.regions_govcloud.outputs.aud) }}
    steps:
      - id: regions_china
        name: Partition (China)
        if: ${{ inputs.partition == 'China' }}
        run: |
          echo regions='["cn-north-1"]'>> "$GITHUB_OUTPUT"
          echo partition='aws-cn'>> "$GITHUB_OUTPUT"
          echo aud='sts.amazonaws.com.cn'>> "$GITHUB_OUTPUT"
      - id: regions_govcloud
        name: Partition (GovCloud)
        if: ${{ inputs.partition == 'GovCloud' }}
        run: |
          echo regions='["us-gov-east-1", "us-gov-west-1"]'>> "$GITHUB_OUTPUT"
          echo partition='aws-us-gov'>> "$GITHUB_OUTPUT"
          echo aud='sts.amazonaws.com'>> "$GITHUB_OUTPUT"
  commercial:
    runs-on: ubuntu-latest
    permissions:
      id-token: write
      contents: read
    environment: Prod (Readonly)
    strategy:
      matrix:
        layer:
          - AWSLambdaPowertoolsPythonV3-python39
          - AWSLambdaPowertoolsPythonV3-python310
          - AWSLambdaPowertoolsPythonV3-python311
          - AWSLambdaPowertoolsPythonV3-python312
          - AWSLambdaPowertoolsPythonV3-python313
          - AWSLambdaPowertoolsPythonV3-python314
        arch:
          - arm64
          - x86_64
    steps:
      - name: Configure AWS Credentials
        uses: aws-actions/configure-aws-credentials@a03048d87541d1d9fcf2ecf528a4a65ba9bd7838 # v4.3.0
        with:
          role-to-assume: ${{ secrets.AWS_IAM_ROLE }}
          aws-region: us-east-1
          mask-aws-account-id: true
      - name: Output ${{ matrix.layer }}-${{ matrix.arch }}
        # fetch the specific layer version information from the us-east-1 commercial region
        run: |
          aws --region us-east-1 lambda get-layer-version-by-arn --arn 'arn:aws:lambda:us-east-1:017000801446:layer:${{ matrix.layer }}-${{ matrix.arch }}:${{ inputs.version }}' > '${{ matrix.layer }}-${{ matrix.arch }}.json'
      - name: Store Metadata
        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6.0.0
        with:
          name: ${{ matrix.layer }}-${{ matrix.arch }}.json
          path: ${{ matrix.layer }}-${{ matrix.arch }}.json
          retention-days: 1
          if-no-files-found: error

  verify:
    name: Verify
    needs: 
      - setup
      - commercial
    runs-on: ubuntu-latest
    permissions:
      id-token: write
      contents: read
    # Environment should interperlate as "GovCloud Prod" or "China Beta"
    environment: ${{ inputs.partition }} ${{ inputs.environment }}
    strategy:
      matrix:
        region: ${{ fromJson(needs.setup.outputs.regions) }}
        layer:
          - AWSLambdaPowertoolsPythonV3-python39
          - AWSLambdaPowertoolsPythonV3-python310
          - AWSLambdaPowertoolsPythonV3-python311
          - AWSLambdaPowertoolsPythonV3-python312
          - AWSLambdaPowertoolsPythonV3-python313
          - AWSLambdaPowertoolsPythonV3-python314
        arch:
          - arm64
          - x86_64
    steps:
      - name: Download Metadata
        uses: actions/download-artifact@37930b1c2abaa49bbe596cd826c3c89aef350131 # v7.0.0
        with:
          name: ${{ matrix.layer }}-${{ matrix.arch }}.json
      - id: transform
        run: |
          echo 'CONVERTED_REGION=${{ matrix.region }}' | tr 'a-z\-' 'A-Z_' >> "$GITHUB_OUTPUT"
      - name: Configure AWS Credentials
        uses: aws-actions/configure-aws-credentials@a03048d87541d1d9fcf2ecf528a4a65ba9bd7838 # v4.3.0
        with:
          role-to-assume: ${{ secrets[format('IAM_ROLE_{0}', steps.transform.outputs.CONVERTED_REGION)] }}
          aws-region: ${{ matrix.region}}
          mask-aws-account-id: true
          audience: ${{ needs.setup.outputs.aud }}
      - id: partition_version
        name: Partition Layer Version
        run: |
          echo 'partition_version=$([[ -n "${{ inputs.partition_version}}" ]] && echo ${{ inputs.partition_version}} || echo ${{ inputs.version }} )' >> "$GITHUB_OUTPUT"
      - name: Verify Layer
        run: |
          export layer_output='${{ matrix.layer }}-${{ matrix.arch }}-${{matrix.region}}.json'
          aws --region ${{ matrix.region}} lambda get-layer-version-by-arn --arn "arn:${{ needs.setup.outputs.partition }}:lambda:${{ matrix.region}}:${{ secrets[format('AWS_ACCOUNT_{0}', steps.transform.outputs.CONVERTED_REGION)] }}:layer:${{ matrix.layer }}-${{ matrix.arch }}:${{ steps.partition_version.outputs.partition_version }}" > $layer_output
          REMOTE_SHA=$(jq -r '.Content.CodeSha256' $layer_output)
          LOCAL_SHA=$(jq -r '.Content.CodeSha256' ${{ matrix.layer }}-${{ matrix.arch }}.json)
          test "$REMOTE_SHA" == "$LOCAL_SHA" && echo "SHA OK: ${LOCAL_SHA}" || exit 1
          jq -s -r '["Layer Arn", "Runtimes", "Version", "Description", "SHA256"], ([.[0], .[1]] | .[] | [.LayerArn, (.CompatibleRuntimes | join("/")), .Version, .Description, .Content.CodeSha256]) |@tsv' ${{ matrix.layer }}-${{ matrix.arch }}.json $layer_output | column -t -s $'\t'