Add SSH support to reusable workflows

.github/workflows/node-ci.yml

@@ -27,6 +27,11 @@ on:
       test_command:
         type: string
         default: "pnpm test"
+    secrets:
+      ssh_private_key:
+        required: false
+      ssh_known_hosts:
+        required: false
 
 jobs:
   quality:
@@ -37,6 +42,19 @@ jobs:
       - name: Checkout source
         uses: actions/checkout@v4
 
+      - name: Start ssh-agent
+        if: ${{ secrets.ssh_private_key != '' }}
+        uses: webfactory/ssh-agent@v0.9.0
+        with:
+          ssh-private-key: ${{ secrets.ssh_private_key }}
+
+      - name: Add SSH known hosts
+        if: ${{ secrets.ssh_known_hosts != '' }}
+        run: |
+          mkdir -p ~/.ssh
+          printf '%s\n' "${{ secrets.ssh_known_hosts }}" >> ~/.ssh/known_hosts
+          chmod 644 ~/.ssh/known_hosts
+
       - name: Set up Node
         uses: actions/setup-node@v4
         with: