Add trivy scan IaC

Author: ggjulio

.github/workflows/scan.yaml

@@ -0,0 +1,35 @@
+name: Scan
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+
+permissions:
+  contents: read
+
+jobs:
+  trivy-iac-scan:
+    permissions:
+      contents: read
+      security-events: write
+      actions: read # only required for a private repository by github/codeql-action/upload-sarif to get the Action run status
+    name: Trivy IaC Scan
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Run Trivy vulnerability scanner in IaC mode
+        uses: aquasecurity/trivy-action@0.33.1
+        with:
+          scan-type: 'config'
+          hide-progress: true
+          format: 'sarif'
+          output: 'trivy-results.sarif'
+
+      - name: Upload Trivy scan results to GitHub Security tab
+        if: always()
+        uses: github/codeql-action/upload-sarif@v4
+        with:
+          sarif_file: 'trivy-results.sarif'

.trivyignore.yaml

@@ -0,0 +1 @@
+ignorefile: .trivyignore.yaml # experimental so the doc say we must specify it explicitly