example-multi-dockerfile.yml

name: LayerLint - Multi Dockerfile Scan
on:
  push:
    paths:
      - '**/Dockerfile*'
      - '.github/workflows/example-multi-dockerfile.yml'

jobs:
  find-dockerfiles:
    runs-on: ubuntu-latest
    outputs:
      dockerfiles: ${{ steps.find.outputs.dockerfiles }}
    steps:
      - name: Checkout code
        uses: actions/checkout@v3
      
      - name: Find all Dockerfiles
        id: find
        run: |
          FILES=$(find . -type f -name "Dockerfile*" | jq -R -s -c 'split("\n")[:-1]')
          echo "dockerfiles=$FILES" >> $GITHUB_OUTPUT
          echo "Found Dockerfiles: $FILES"

  lint:
    needs: find-dockerfiles
    runs-on: ubuntu-latest
    strategy:
      matrix:
        dockerfile: ${{ fromJson(needs.find-dockerfiles.outputs.dockerfiles) }}
      fail-fast: false
    name: Scan ${{ matrix.dockerfile }}
    steps:
      - name: Checkout code
        uses: actions/checkout@v3
      
      - name: Install LayerLint
        run: |
          curl -sSL https://github.com/vviveksharma/layerLint/releases/download/v1.0.0/layerLint_1.0.0_Linux_x86_64.tar.gz | tar xz
          chmod +x layerlint
      
      - name: Scan ${{ matrix.dockerfile }}
        run: ./layerlint scan --dockerfile ${{ matrix.dockerfile }} --fail-on-severity medium