location /ws {
        proxy_pass http://php-fpm:8080; # 注意：这里用的是 Docker 服务名或容器名
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;

        # 禁用缓冲，确保WebSocket数据实时传输
        proxy_buffering off;
        proxy_buffer_size 4k;
        proxy_buffers 4 4k;
        proxy_busy_buffers_size 4k;
        proxy_max_temp_file_size 0;
        
        # 可选：设置超时（WebSocket 是长连接）
        proxy_read_timeout 86400s;
        proxy_send_timeout 86400s; 
    }