feat: 实现隧道进程自动重启功能，修复容器内进程管理架构

- 重构隧道进程管理：将隧道启动从 entrypoint.sh 移至 docker-entrypoint.sh
- 添加隧道自动重启机制：监控循环每5秒检查隧道进程状态，异常退出时自动重启
- 增强日志记录：隧道输出重定向至 /tmp/tunnel.log 便于问题排查
- 修复原始架构问题：解决 exec 替换进程导致后台隧道失去父进程监控的问题
- 优化清理逻辑：在信号处理和错误退出时正确清理隧道进程

docker-entrypoint.sh

@@ -1,11 +1,35 @@
 #!/bin/bash
 # =============================================================================
 # FA3 Datafetch 容器启动脚本
-# 功能：启动后端 (FastAPI) 和前端 (Next.js)，处理进程管理
+# 功能：启动后端 (FastAPI)、前端 (Next.js) 和隧道，处理进程管理
 # =============================================================================
 
 set -e
 
+# 隧道重启函数
+restart_tunnel() {
+    echo "[$(date '+%Y-%m-%d %H:%M:%S')] 检测到隧道进程已停止，正在重启..."
+    if [ -n "$TUNNEL_PID" ]; then
+        kill "$TUNNEL_PID" 2>/dev/null || true
+    fi
+
+    # 确保环境变量存在
+    if [ -z "$SERVER_ADDRS" ] || [ -z "$SERVICE_ID" ] || [ -z "$LOCAL_PORT" ]; then
+        echo "[$(date '+%Y-%m-%d %H:%M:%S')] 错误：隧道环境变量缺失，无法重启"
+        return 1
+    fi
+
+    # 启动隧道
+    /usr/local/bin/portwardenc >/dev/null 2>&1 &
+    TUNNEL_PID=$!
+    echo "[$(date '+%Y-%m-%d %H:%M:%S')] 隧道已重启，PID: $TUNNEL_PID"
+
+    # 保存 PID 到文件，方便监控
+    echo "$TUNNEL_PID" > /tmp/tunnel.pid 2>/dev/null || true
+
+    return 0
+}
+
 # 信号处理函数
 cleanup() {
     echo "[$(date '+%Y-%m-%d %H:%M:%S')] 收到停止信号，正在关闭服务..."
@@ -15,8 +39,11 @@ cleanup() {
     if [ -n "$FRONTEND_PID" ]; then
         kill "$FRONTEND_PID" 2>/dev/null || true
     fi
+    if [ -n "$TUNNEL_PID" ]; then
+        kill "$TUNNEL_PID" 2>/dev/null || true
+    fi
     # 等待进程结束
-    wait $BACKEND_PID $FRONTEND_PID 2>/dev/null || true
+    wait $BACKEND_PID $FRONTEND_PID $TUNNEL_PID 2>/dev/null || true
     echo "[$(date '+%Y-%m-%d %H:%M:%S')] 所有服务已停止"
     exit 0
 }
@@ -77,12 +104,46 @@ if ! kill -0 "$FRONTEND_PID" 2>/dev/null; then
 fi
 
 # =============================================================================
-# 3. 监控服务状态
+# 3. 启动隧道服务
+# =============================================================================
+echo "[$(date '+%Y-%m-%d %H:%M:%S')] 启动隧道服务..."
+
+# 检查隧道环境变量
+if [ -z "$SERVER_ADDRS" ] || [ -z "$SERVICE_ID" ] || [ -z "$LOCAL_PORT" ]; then
+    echo "[$(date '+%Y-%m-%d %H:%M:%S')] 警告：隧道环境变量缺失，隧道将不会启动"
+    echo "[$(date '+%Y-%m-%d %H:%M:%S')] 需要 SERVER_ADDRS, SERVICE_ID, LOCAL_PORT"
+    TUNNEL_PID=""
+else
+    # 启动隧道（保留错误日志用于诊断）
+    /usr/local/bin/portwardenc >/tmp/tunnel.log 2>&1 &
+    TUNNEL_PID=$!
+    echo "[$(date '+%Y-%m-%d %H:%M:%S')] 隧道PID: $TUNNEL_PID (日志: /tmp/tunnel.log)"
+
+    # 保存 PID 到文件
+    echo "$TUNNEL_PID" > /tmp/tunnel.pid 2>/dev/null || true
+
+    # 等待隧道启动
+    sleep 2
+
+    # 检查隧道是否启动成功
+    if ! kill -0 "$TUNNEL_PID" 2>/dev/null; then
+        echo "[$(date '+%Y-%m-%d %H:%M:%S')] 警告：隧道启动失败或已退出"
+        TUNNEL_PID=""
+    fi
+fi
+
+# =============================================================================
+# 4. 监控服务状态
 # =============================================================================
 echo "[$(date '+%Y-%m-%d %H:%M:%S')] ============================================"
 echo "[$(date '+%Y-%m-%d %H:%M:%S')] 所有服务启动成功！"
 echo "[$(date '+%Y-%m-%d %H:%M:%S')]   - 前端: http://localhost:3001 (通过隧道暴露)"
 echo "[$(date '+%Y-%m-%d %H:%M:%S')]   - 后端: http://localhost:8000 (仅容器内部)"
+if [ -n "$TUNNEL_PID" ]; then
+    echo "[$(date '+%Y-%m-%d %H:%M:%S')]   - 隧道: PID $TUNNEL_PID (自动重启已启用)"
+else
+    echo "[$(date '+%Y-%m-%d %H:%M:%S')]   - 隧道: 未运行 (请检查环境变量)"
+fi
 echo "[$(date '+%Y-%m-%d %H:%M:%S')] ============================================"
 
 # 持续监控进程状态
@@ -91,6 +152,9 @@ while true; do
     if ! kill -0 "$BACKEND_PID" 2>/dev/null; then
         echo "[$(date '+%Y-%m-%d %H:%M:%S')] 错误：后端进程已停止！"
         kill "$FRONTEND_PID" 2>/dev/null || true
+        if [ -n "$TUNNEL_PID" ]; then
+            kill "$TUNNEL_PID" 2>/dev/null || true
+        fi
         exit 1
     fi
 
@@ -98,8 +162,19 @@ while true; do
     if ! kill -0 "$FRONTEND_PID" 2>/dev/null; then
         echo "[$(date '+%Y-%m-%d %H:%M:%S')] 错误：前端进程已停止！"
         kill "$BACKEND_PID" 2>/dev/null || true
+        if [ -n "$TUNNEL_PID" ]; then
+            kill "$TUNNEL_PID" 2>/dev/null || true
+        fi
         exit 1
     fi
 
+    # 检查隧道（如果已启用）
+    if [ -n "$TUNNEL_PID" ]; then
+        if ! kill -0 "$TUNNEL_PID" 2>/dev/null; then
+            echo "[$(date '+%Y-%m-%d %H:%M:%S')] 警告：隧道进程已停止，尝试自动重启..."
+            restart_tunnel
+        fi
+    fi
+
     sleep 5
 done

entrypoint.sh

@@ -141,8 +141,7 @@ export SERVER_ADDRS="$PW_SERVER_ADDRS"
 export SERVICE_ID="$PW_SERVICE_ID"
 export LOCAL_PORT="$PW_LOCAL_PORT"
 
-echo "Starting Portwarden client in the background..."
+# 注意：隧道进程现在由 docker-entrypoint.sh 管理，不再在这里启动
-/usr/local/bin/portwardenc &
 
 echo "Executing main container command: $@"
 exec "$@"