添加数据库自启动服务。修复服务器重启后./server.sh start 会提示错误——“Starting jumpsever
service:run_websocket.py not running”

监控支持 ssl

handler is undefined.

Https support

Get SSH client IP address from environment

fix wss issue when using https  #37 支持 wss 和 https

Ubuntu的passwd命令不支持--stdin选项，使用chpasswd替代，在CentOS上已经验证有效

Ubuntu's passwd command doesn't support --stdin option, use chpasswd which is also available in CentOS