node.js – 从脚本运行时如何让rsync识别ssh publickey(nodejs)

运行通过ssh抛出调用rsync的脚本

“Permission denied (publickey). rsync: connection unexpectedly closed
(0 bytes received so far) [receiver]”

奇怪的是：

> ssh user @ host工作正常,所以ssh键都设置正确
>将脚本生成的命令记录并粘贴到终端中
>从脚本运行whoami显示正确的用户,并通过process.env将环境传递给spawn实例
>从脚本运行ssh user @ host不会抛出错误并返回缓冲区,因此这似乎有效
>运行脚本(只是执行已经测试过的命令)会引发上述错误

var spawn = require('child_process').spawn;
spawn('rsync', [
    '-avc',
    '--delete',
    '"'+src+'"' , 
    '--link-dest="'+path.join(dest, folder_name)+'"',
    '"'+path.join(dest, 'latest/')+'"'
    ],{ 
        cwd: process.cwd(),
        env: process.env
});

rsync -avz -e "ssh -i /home/thisuser/cron/thishost-rsync-key" remoteuser@remotehost:/remote/dir /this/dir/