Add trivy cache

.github/workflows/build.yaml

@@ -54,6 +54,9 @@ jobs:
           format: 'table'
           ignore-unfixed: true
           vuln-type: 'os,library'
+        env:
+          TRIVY_SKIP_DB_UPDATE: true
+          TRIVY_SKIP_JAVA_DB_UPDATE: true
       - name: Trivy - Stop on Severe Vulnerabilities
         uses: aquasecurity/trivy-action@master
         if: github.event_name == 'pull_request'
@@ -65,6 +68,9 @@ jobs:
           exit-code: '1'
           vuln-type: 'os,library'
           severity: 'CRITICAL,HIGH'
+        env:
+          TRIVY_SKIP_DB_UPDATE: true
+          TRIVY_SKIP_JAVA_DB_UPDATE: true
       - name: Docker meta
         id: meta
         uses: docker/metadata-action@v4

.github/workflows/cache-trivy.yaml

@@ -0,0 +1,31 @@
+name: Update Trivy Cache
+
+on:
+  schedule:
+    - cron: '0 0 * * *'  # Run daily at midnight UTC
+  workflow_dispatch:  # Allow manual triggering
+
+jobs:
+  update-trivy-db:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Get current date
+        id: date
+        run: echo "date=$(date +'%Y-%m-%d')" >> $GITHUB_OUTPUT
+      - name: Download and extract the Trivy vulnerability DB
+        run: |
+          mkdir -p $GITHUB_WORKSPACE/.cache/trivy/db
+          oras pull ghcr.io/aquasecurity/trivy-db:2
+          tar -xzf db.tar.gz -C $GITHUB_WORKSPACE/.cache/trivy/db
+          rm db.tar.gz
+      - name: Download and extract the Trivy Java DB
+        run: |
+          mkdir -p $GITHUB_WORKSPACE/.cache/trivy/java-db
+          oras pull ghcr.io/aquasecurity/trivy-java-db:1
+          tar -xzf javadb.tar.gz -C $GITHUB_WORKSPACE/.cache/trivy/java-db
+          rm javadb.tar.gz
+      - name: Cache Trivy DBs
+        uses: actions/cache/save@v4
+        with:
+          path: ${{ github.workspace }}/.cache/trivy
+          key: cache-trivy-${{ steps.date.outputs.date }}