Node.js（sudo）和monit

我创建了一个upstart脚本以守护juggernaut（一个node.js应用程序） upstart脚本如下

description "juggernaut server"
author      "panojsee"

start on startup
stop on shutdown

script
    # We found $HOME is needed. Without it, we ran into problems
    #export HOME="/home/ubuntu/src/juggernaut"
    chdir /home/ubuntu/src/juggernaut
    exec sudo /usr/bin/node server.js 2>&1 >> /var/log/node.log
end script

如您所见，我想用sudo运行节点（这样我就可以使用Flash套接字）。我的monit脚本如下：设置logfile /var/log/monit.log

check host juggernaut with address 127.0.0.1
    start program = "/sbin/start juggernaut"
    stop program  = "/sbin/stop juggernaut"
    if failed port 8080 protocol HTTP
        request /
        with timeout 10 seconds
        then restart

Monit不允许我启动程序=“sudo / sbin / start juggernaut” 一旦我杀死juggernaut（节点）然后monit尝试重新启动它，但死了以下消息。

[UTC Feb  3 22:48:25] error    : 'nodejs' failed, cannot open a connection to INET[127.0.0.1:8080] via TCP
[UTC Feb  3 22:48:25] info     : 'nodejs' trying to restart
[UTC Feb  3 22:48:25] info     : 'nodejs' stop: sudo
[UTC Feb  3 22:48:25] error    : Error: Could not execute sudo
[UTC Feb  3 22:48:25] info     : 'nodejs' start: sudo

有什么线索我怎么告诉monit执行sudo命令？