Add OpenSSF Scorecard workflow and badge

.github/workflows/scorecard.yml

@@ -0,0 +1,42 @@
+---
+name: Scorecard supply-chain security
+on:
+  branch_protection_rule:
+  schedule:
+    - cron: '17 13 * * 3'
+  push:
+    branches:
+      - main
+
+permissions:
+  contents: read
+
+jobs:
+  analysis:
+    name: Scorecard analysis
+    runs-on: ubuntu-latest
+    permissions:
+      # Needed to upload the results to code-scanning dashboard.
+      security-events: write
+      # Needed to publish results and get a badge (see publish_results below).
+      id-token: write
+
+    steps:
+      - name: "Checkout code"
+        uses: actions/checkout@v4
+        with:
+          persist-credentials: false
+
+      - name: "Run analysis"
+        uses: ossf/[email protected]
+        with:
+          results_file: results.sarif
+          results_format: sarif
+          publish_results: true
+
+      - name: "Upload artifact"
+        uses: actions/upload-artifact@v4
+        with:
+          name: SARIF file
+          path: results.sarif
+          retention-days: 5

README.md

@@ -5,6 +5,7 @@ deSEC.io API client
 [![Code Quality](https://github.com/s-hamann/desec-dns/actions/workflows/code_quality.yml/badge.svg)](https://github.com/s-hamann/desec-dns/actions/workflows/code_quality.yml)
 [![codecov](https://codecov.io/gh/s-hamann/desec-dns/graph/badge.svg?token=D9ZE0GXJN0)](https://codecov.io/gh/s-hamann/desec-dns)
 [![Documentation](https://github.com/s-hamann/desec-dns/actions/workflows/docs.yml/badge.svg)](https://s-hamann.github.io/desec-dns/)
+[![OpenSSF Scorecard](https://api.scorecard.dev/projects/github.com/s-hamann/desec-dns/badge)](https://scorecard.dev/viewer/?uri=github.com/s-hamann/desec-dns)
 
 This is a simple client to manage domains hosted by
 [deSEC.io](https://desec.io/) using the deSEC.io API.