reintroduce Trivy reporting and dry-run mode (#8834)

* ci: reintroduce Trivy report and gate workflow

* ci: add dry-run mode to container release workflow

.github/workflows/container_latest.yml

@@ -23,15 +23,22 @@ on:
           - all
           - standard
           - large_disk
+      publish:
+        description: 'Publish images and manifests'
+        required: true
+        type: boolean
+        default: false
 
 permissions:
   contents: read
+  security-events: write
 
 jobs:
   setup:
     runs-on: ubuntu-latest
     outputs:
       variants: ${{ steps.set-variants.outputs.variants }}
+      publish: ${{ steps.set-publish.outputs.publish }}
     steps:
       - name: Select variants for this run
         id: set-variants
@@ -42,6 +49,14 @@ jobs:
             variants='["standard","large_disk"]'
           fi
           echo "variants=$variants" >> "$GITHUB_OUTPUT"
+      - name: Select publish mode
+        id: set-publish
+        run: |
+          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
+            echo "publish=${{ github.event.inputs.publish }}" >> "$GITHUB_OUTPUT"
+          else
+            echo "publish=true" >> "$GITHUB_OUTPUT"
+          fi
 
   build:
     needs: [setup]
@@ -111,13 +126,13 @@ jobs:
           buildkitd-flags: "--debug"
           buildkitd-config: /tmp/buildkitd.toml
       - name: Login to Docker Hub
-        if: github.event_name != 'pull_request'
+        if: needs.setup.outputs.publish == 'true'
         uses: docker/login-action@v4
         with:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
       - name: Login to GHCR
-        if: github.event_name != 'pull_request'
+        if: needs.setup.outputs.publish == 'true'
         uses: docker/login-action@v4
         with:
           registry: ghcr.io
@@ -129,7 +144,7 @@ jobs:
           DOCKER_BUILDKIT: 1
         with:
           context: ./docker
-          push: ${{ github.event_name != 'pull_request' }}
+          push: ${{ needs.setup.outputs.publish == 'true' }}
           file: ./docker/Dockerfile.go_build
           platforms: linux/${{ matrix.platform }}
           # Push to GHCR only during build to avoid Docker Hub rate limits
@@ -149,10 +164,128 @@ jobs:
           # Remove Go build cache
           sudo rm -rf /tmp/go-build*
 
-  create-manifest:
+  trivy-scan:
     runs-on: ubuntu-latest
     needs: [setup, build]
-    if: github.event_name != 'pull_request'
+    strategy:
+      matrix:
+        variant: ${{ fromJSON(needs.setup.outputs.variants) }}
+    steps:
+      - name: Configure variant
+        id: config
+        run: |
+          if [ "${{ matrix.variant }}" == "large_disk" ]; then
+            echo "tag_suffix=_large_disk" >> $GITHUB_OUTPUT
+          else
+            echo "tag_suffix=" >> $GITHUB_OUTPUT
+          fi
+      - name: Login to GHCR
+        if: needs.setup.outputs.publish == 'true'
+        uses: docker/login-action@v4
+        with:
+          registry: ghcr.io
+          username: ${{ secrets.GHCR_USERNAME }}
+          password: ${{ secrets.GHCR_TOKEN }}
+      - name: Checkout for local scan build
+        if: needs.setup.outputs.publish != 'true'
+        uses: actions/checkout@v6
+        with:
+          ref: ${{ github.event_name == 'workflow_dispatch' && github.event.inputs.source_ref || github.ref }}
+      - name: Create BuildKit config for local scan build
+        if: needs.setup.outputs.publish != 'true'
+        run: |
+          cat > /tmp/buildkitd.toml <<EOF
+          [registry."docker.io"]
+            mirrors = ["https://mirror.gcr.io"]
+          EOF
+      - name: Set up Docker Buildx for local scan build
+        if: needs.setup.outputs.publish != 'true'
+        uses: docker/setup-buildx-action@v4
+        with:
+          buildkitd-flags: "--debug"
+          buildkitd-config: /tmp/buildkitd.toml
+      - name: Build local scan image tarball
+        if: needs.setup.outputs.publish != 'true'
+        uses: docker/build-push-action@v7
+        env:
+          DOCKER_BUILDKIT: 1
+        with:
+          context: ./docker
+          file: ./docker/Dockerfile.go_build
+          platforms: linux/amd64
+          outputs: type=docker,dest=/tmp/seaweedfs${{ steps.config.outputs.tag_suffix }}-amd64.tar
+          build-args: |
+            BUILDKIT_INLINE_CACHE=1
+            BRANCH=${{ github.event_name == 'workflow_dispatch' && github.event.inputs.source_ref || github.sha }}
+            ${{ matrix.variant == 'large_disk' && 'TAGS=5BytesOffset' || '' }}
+      - name: Trivy report (published image)
+        if: needs.setup.outputs.publish == 'true'
+        # Pin to SHA - mutable tags were compromised (GHSA-69fq-xp46-6x23)
+        uses: aquasecurity/trivy-action@57a97c7e7821a5776cebc9bb87c984fa69cba8f1 # v0.35.0
+        with:
+          scan-type: image
+          # Scan amd64 only - OS packages are identical across architectures
+          # since they all use the same alpine base, so a single-arch scan
+          # provides sufficient coverage without multiplying CI time.
+          image-ref: ghcr.io/chrislusf/seaweedfs:${{ github.event_name == 'workflow_dispatch' && github.event.inputs.image_tag || 'latest' }}${{ steps.config.outputs.tag_suffix }}-amd64
+          scanners: vuln
+          vuln-type: os,library
+          severity: HIGH,CRITICAL
+          ignore-unfixed: true
+          limit-severities-for-sarif: true
+          format: sarif
+          output: trivy-results.sarif
+          exit-code: '0'
+      - name: Trivy report (local tarball)
+        if: needs.setup.outputs.publish != 'true'
+        uses: aquasecurity/trivy-action@57a97c7e7821a5776cebc9bb87c984fa69cba8f1 # v0.35.0
+        with:
+          input: /tmp/seaweedfs${{ steps.config.outputs.tag_suffix }}-amd64.tar
+          scanners: vuln
+          vuln-type: os,library
+          severity: HIGH,CRITICAL
+          ignore-unfixed: true
+          limit-severities-for-sarif: true
+          format: sarif
+          output: trivy-results.sarif
+          exit-code: '0'
+      - name: Upload Trivy scan results to GitHub Security
+        uses: github/codeql-action/upload-sarif@v4
+        if: always()
+        with:
+          sarif_file: trivy-results.sarif
+      - name: Trivy gate (published image)
+        if: needs.setup.outputs.publish == 'true'
+        # Gate only on fixable high/critical vulnerabilities. Non-fixable
+        # findings are still visible in the SARIF upload above.
+        uses: aquasecurity/trivy-action@57a97c7e7821a5776cebc9bb87c984fa69cba8f1 # v0.35.0
+        with:
+          scan-type: image
+          image-ref: ghcr.io/chrislusf/seaweedfs:${{ github.event_name == 'workflow_dispatch' && github.event.inputs.image_tag || 'latest' }}${{ steps.config.outputs.tag_suffix }}-amd64
+          scanners: vuln
+          vuln-type: os,library
+          severity: HIGH,CRITICAL
+          ignore-unfixed: true
+          format: table
+          exit-code: '1'
+          skip-setup-trivy: true
+      - name: Trivy gate (local tarball)
+        if: needs.setup.outputs.publish != 'true'
+        uses: aquasecurity/trivy-action@57a97c7e7821a5776cebc9bb87c984fa69cba8f1 # v0.35.0
+        with:
+          input: /tmp/seaweedfs${{ steps.config.outputs.tag_suffix }}-amd64.tar
+          scanners: vuln
+          vuln-type: os,library
+          severity: HIGH,CRITICAL
+          ignore-unfixed: true
+          format: table
+          exit-code: '1'
+          skip-setup-trivy: true
+
+  create-manifest:
+    runs-on: ubuntu-latest
+    needs: [setup, build, trivy-scan]
+    if: needs.setup.outputs.publish == 'true' && github.event_name != 'pull_request'
     strategy:
       matrix:
         variant: ${{ fromJSON(needs.setup.outputs.variants) }}