在Ruby中使用net-sftp进行基于密钥的身份验证 [英] Key based authenication with net-sftp in Ruby

问题描述

我希望能够使用SFTP登录到许多服务器并下载某些文件，以帮助在出现问题时进行调试.虽然我们可以使用客户端，但我们希望开始实现流程自动化以简化一切.

I want to be able to use SFTP to login into a number of servers and download certain files to help debug issues as and when they arise. While we could use a client, we wanted to start automating the process to streamline everything.

我的第一次尝试是这样的:

My first attempt looks something like this:

def download(files_to_download, destination_directory)
    Net::SFTP.start(@server, @username, :password => @password) do |sftp|
        files_to_download.each do |f|
            local_path = File.join(destination_directory, File.basename(f))
            sftp.download!(f, local_path)
        end
    end
end

虽然可行，但这意味着我们需要密码.理想情况下，我想使用公共密钥身份验证，但是在文档或在线中看不到对此的任何引用-这可能吗?

While this works, it means we need the password. Ideally, I want to be using public key authentication however I can't see any reference to this in the documentation or online - is this possible?

我不希望使用chilkat.

I would prefer not to use chilkat.

谢谢

推荐答案

如果您想直接指定密钥(或

If you want to directly specify the key (or other SSH options) you can first open a Net::SSH connection, and then do SFTP operations from there.

Net::SSH.start("localhost", "user", keys: ['keys/my_key']) do |ssh|
  ssh.sftp.upload!("/local/file.tgz", "/remote/file.tgz")
  ssh.exec! "cd /some/path && tar xf /remote/file.tgz && rm /remote/file.tgz"
end

这也适用于Net :: SCP

This also works for Net::SCP

Net::SSH.start('localhost', 'user', keys: ['keys/my_key'] ) do |ssh|
  ssh.scp.download("/local/file.txt", "/remote/file.txt")
end

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