name: Docker Security Scan

on:
  push:
    branches: [ "main" ]
    paths:
      - 'Dockerfile'
      - '.github/workflows/docker-security-scan.yml'
      - 'mix.exs'
      - 'mix.lock'
  pull_request:
    branches: [ "main" ]
    paths:
      - 'Dockerfile'
      - '.github/workflows/docker-security-scan.yml'
      - 'mix.exs'
      - 'mix.lock'
  schedule:
    - cron: '0 0 * * 0'  # Run weekly on Sundays at midnight
  workflow_dispatch:  # Allow manual triggers

jobs:
  scan:
    name: Security Scan
    runs-on: ubuntu-latest
    permissions:
      contents: read
      security-events: write
      actions: read
      packages: read

    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Build Docker image
        run: docker build -t aprs:${{ github.sha }} .

      - name: Run Trivy vulnerability scanner
        uses: aquasecurity/trivy-action@master
        with:
          image-ref: aprs:${{ github.sha }}
          format: 'sarif'
          output: 'trivy-results.sarif'
          severity: 'CRITICAL,HIGH'
          timeout: '10m'
          scanners: 'vuln,config,secret'

      - name: Upload Trivy scan results to GitHub Security tab
        uses: github/codeql-action/upload-sarif@v3
        if: always()
        with:
          sarif_file: 'trivy-results.sarif'
          category: 'Trivy Scan'

      - name: Fail on CRITICAL vulnerabilities
        if: ${{ failure() }}
        run: |
          echo "Critical vulnerabilities found in the Docker image."
          echo "Please review the scan results in the Security tab."
          exit 1