chore(workflow): add cron for clean docker cache

Author: json-q

.github/workflows/cleanup-docker-cache.yml

@@ -0,0 +1,21 @@
+name: Clean Docker Cache
+
+on:
+  schedule:
+    # 每15天凌晨0点运行一次
+    - cron: '0 0 */15 * *'
+
+jobs:
+  cleanup:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Connect server to clean docker cache
+        uses: appleboy/ssh-action@master
+        with:
+          host: ${{ secrets.SSH_HOST }}
+          username: ${{ secrets.SSH_USER }}
+          key: ${{ secrets.SSH_PRIVATE_KEY }}
+          script: |
+            echo "🧹 Starting Docker system prune..."
+            docker system prune -f
+            echo "✅ Docker cache cleaned successfully"

.github/workflows/deploy.yml

@@ -17,7 +17,8 @@ jobs:
           host: ${{ secrets.SSH_HOST }}
           username: ${{ secrets.SSH_USER }}
           key: ${{ secrets.SSH_PRIVATE_KEY }}
-          command_timeout: 20m
+          # 无缓存时，构建大约需要 10min+，8 次拉取重试约 8min+
+          command_timeout: 30m
           script: |
             cd ${{ secrets.BLOG_PATH_REMOTE }}
             MAX_RETRIES=8
@@ -30,9 +31,6 @@ jobs:
                 docker stop blog || true
                 docker rm blog || true
                 docker rmi nextjs || true
-
-                echo "🗑️ Clearing docker cache"
-                docker system prune -f
                 docker build -t nextjs .
                 docker compose up -d
                 exit 0