workflow: improve trivy vulnerability scanning

Fail trivy vuln scan cleanly and create a periodic trivy
scan to upload results to Github's security.

Signed-off-by: Tuomas Katila <[email protected]>

Author: tkatila

.github/workflows/devel.yaml

@@ -15,8 +15,6 @@ jobs:
       contents: read
       security-events: write
     uses: "./.github/workflows/lib-trivy.yaml"
-    with:
-      upload-to-github-security-tab: true
 
   validate:
     uses: "./.github/workflows/lib-validate.yaml"

.github/workflows/lib-trivy.yaml

@@ -81,52 +81,10 @@ jobs:
     - name: Checkout
       uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
     - name: Run Trivy in fs mode
-      continue-on-error: true
       uses: aquasecurity/trivy-action@18f2510ee396bbf400402947b394f2dd8c87dbb0 # 0.29.0
       with:
         scan-type: fs
         scan-ref: .
         exit-code: 1
         list-all-pkgs: true
-        format: json
-        output: trivy-report.json
-    - name: Show report in human-readable format
-      uses: aquasecurity/trivy-action@18f2510ee396bbf400402947b394f2dd8c87dbb0 # 0.29.0
-      with:
-        scan-type: convert
-        vuln-type: ''
-        severity: ''
-        image-ref: trivy-report.json
         format: table
-    - name: Convert report to sarif
-      if: ${{ inputs.upload-to-github-security-tab }}
-      uses: aquasecurity/trivy-action@18f2510ee396bbf400402947b394f2dd8c87dbb0 # 0.29.0
-      with:
-        scan-type: convert
-        vuln-type: ''
-        severity: ''
-        image-ref: trivy-report.json
-        format: sarif
-        output: trivy-report.sarif
-    - name: Upload sarif report to GitHub Security tab
-      if: ${{ inputs.upload-to-github-security-tab }}
-      uses: github/codeql-action/upload-sarif@aa578102511db1f4524ed59b8cc2bae4f6e88195 # v3
-      with:
-        sarif_file: trivy-report.sarif
-    - name: Convert report to csv
-      if: ${{ inputs.export-csv }}
-      uses: aquasecurity/trivy-action@18f2510ee396bbf400402947b394f2dd8c87dbb0 # 0.29.0
-      with:
-        scan-type: convert
-        vuln-type: ''
-        severity: ''
-        image-ref: trivy-report.json
-        format: template
-        template: "@.github/workflows/template/trivy-csv.tpl"
-        output: trivy-report.csv
-    - name: Upload CSV report as an artifact
-      if: ${{ inputs.export-csv }}
-      uses: actions/upload-artifact@b4b15b8c7c6ac21ea08fcf65892d2ee8f75cf882 # v4
-      with:
-        name: trivy-report
-        path: trivy-report.csv

.github/workflows/trivy-periodic.yaml

@@ -0,0 +1,37 @@
+name: Trivy vuln scan to Github Security
+on:
+  schedule:
+    - cron: '0 3 * * *'
+  push:
+    branches:
+      - main
+
+permissions:
+  contents: read
+  security-events: write
+  actions: read
+
+jobs:
+  trivy-scan-vulns:
+    permissions:
+      security-events: write
+    runs-on: ubuntu-24.04
+    name: Scan vulnerabilities
+    steps:
+    - name: Checkout
+      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+    - name: Run Trivy in fs mode
+      # Don't fail in case of vulnerabilities, report them in the next step
+      continue-on-error: true
+      uses: aquasecurity/trivy-action@18f2510ee396bbf400402947b394f2dd8c87dbb0 # 0.29.0
+      with:
+        scan-type: fs
+        scan-ref: .
+        exit-code: 1
+        list-all-pkgs: true
+        format: sarif
+        output: trivy-report.sarif
+    - name: Upload sarif report to GitHub Security tab
+      uses: github/codeql-action/upload-sarif@aa578102511db1f4524ed59b8cc2bae4f6e88195 # v3
+      with:
+        sarif_file: trivy-report.sarif