name: Scan images using trivy
on:
  workflow_dispatch:
  schedule:
    - cron: "0 13 * * *"

jobs:
  scan:
    permissions:
      contents: read
      security-events: write # allow github/codeql-action/upload-sarif
    name: Scan for Security Vulnerabilities
    runs-on: ubuntu-18.04
    steps:
      - name: Checkout code
        uses: actions/checkout@v2
      
      - name: Run Trivy vulnerability scanner
        uses: aquasecurity/trivy-action@master
        with:
          image-ref: 'docker.io/library/rockylinux:8'
          format: 'sarif'
          output: 'trivy-results.sarif'
          exit-code: '1'
          ignore-unfixed: true
          vuln-type: 'os,library'
          severity: 'CRITICAL,HIGH'

      - name: Upload Trivy scan results to GitHub Security tab
        uses: github/codeql-action/upload-sarif@v1
        if: always() 
        with:
          sarif_file: 'trivy-results.sarif'