image-build-scan.yml

name: "Build Docker image and run Trivy vulnerability scan"

on:
  push:
    # Publish `master` as `latest` image.
    branches: [master]
    # Publish `1.*` tags as releases.
    tags: [1.*]
  pull_request:
    branches: [master]

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  build:
    name: Build Docker image
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write
      security-events: write
    steps:
      #----------------------------------------------
      # Checkout repo
      #----------------------------------------------
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
      #----------------------------------------------
      # Set up Docker BuildX environment
      #----------------------------------------------
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
      #----------------------------------------------
      # Log Docker into the GitHub Container Repository
      #----------------------------------------------
      - name: Log into registry ${{ env.REGISTRY }}
        if: github.event_name != 'pull_request'
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      #----------------------------------------------
      # Extract Docker image metadata from GitHub events
      #----------------------------------------------
      - name: Extract Docker metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          flavor: |
            latest=true
      #----------------------------------------------
      # Build and push Docker image (not on PR)
      #----------------------------------------------
      - name: Build and push Docker image
        uses: docker/build-push-action@v6
        with:
          context: .
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
  scan:
    name: Image vulnerability scan
    runs-on: ubuntu-latest
    needs: [build]
    permissions:
      contents: read
      packages: read
      security-events: write
    steps:
      #----------------------------------------------
      # Run vulnerability scan on built image
      #----------------------------------------------
      - name: Run Trivy vulnerability scanner
        uses: aquasecurity/trivy-action@0.29.0
        env:
          TRIVY_DB_REPOSITORY: public.ecr.aws/aquasecurity/trivy-db
        with:
          scan-type: "image"
          scanners: "vuln"
          image-ref: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          vuln-type: "os,library"
          severity: "HIGH,CRITICAL"
          format: "sarif"
          output: "trivy-results.sarif"
      - name: Upload Trivy scan results to GitHub Security tab
        uses: github/codeql-action/upload-sarif@v3
        with:
          sarif_file: "trivy-results.sarif"