# Trivy configured to scan for vulnerable dependencies in the project software composition

name: Trivy Scan

# Events that triggers Trivy to run
on:
  push:
    branches: [ main ]
  pull_request:
    branches: [ main ]

jobs:
  build:
    name: Trivy Vulnerability Scanner
    runs-on: ubuntu-latest
    # Skip any PR created by dependabot to avoid permission issues (if used)
    if: (github.actor != 'dependabot[bot]')
    steps:
      # Checking out the repo to scan
      - name: Checkout code
        uses: actions/checkout@v2

      # Run Trivy to fail the job on critical vulnerabiliies with fix available
      - name: Run Trivy for critical vulnerabilities
        uses: aquasecurity/trivy-action@master
        with:
          scan-type: 'fs' # Filesystem mode
          ignore-unfixed: true # Ignore vulnerabilities with no available fix
          format: 'table' # Table output mode as next step will report in security tab
          severity: 'CRITICAL' # Error only on critical vulnerabilities
          exit-code: '1' # Fail the job if a critical vulnerability with fix available is found

      # Run Trivy reporting all vulnerabilities to the security tab
      - name: Run Trivy for reporting all vulnerabilities
        uses: aquasecurity/trivy-action@master
        if: always() # Run this step even if job fails due to critical vuln
        with:
          scan-type: 'fs' # Filesystem mode
          ignore-unfixed: true # Ignore vulnerabilities with no available fix
          format: 'template' # Template output mode
          template: '@/contrib/sarif.tpl' # SARIF template to be compatible with GitHub security tab
          output: 'trivy-results.sarif' # Output file name
          severity: 'CRITICAL,HIGH,MEDIUM' # Report on critical/high/medium vulnerabiliies
          exit-code: '0' # No failing as for reporting purposes

      # Generate the output as SARIF and upload to the security tab
      - name: Upload Trivy results
        uses: github/codeql-action/upload-sarif@v1
        if: always() # Upload even if the job has failed due to a vulnerability
        with:
          sarif_file: 'trivy-results.sarif'