如何在golang CLI中的远程计算机上执行命令？ [英] How do I execute a command on a remote machine in a golang CLI?

问题描述

如何在golang CLI中的远程计算机上执行命令？我需要编写一个golang CLI，该CLI可以通过一个密钥SSH到远程计算机并执行shell命令。此外，我需要能够做到这一步。例如SSH进入一台计算机（如云堡垒），然后SSH进入另一台内部计算机，然后执行shell命令。

How do I execute a command on a remote machine in a golang CLI? I need to write a golang CLI that can SSH into a remote machine via a key and execute a shell command. Furthermore, I need to be able to do this one hop away. e.g. SSH into a machine (like a cloud bastion) and then SSH into another, internal, machine and execute a shell command.

我（尚未）没有发现任何示例

I haven't (yet) found any examples for this.

推荐答案

尝试使用os / exec https://golang.org/pkg/os/exec/ 执行ssh

Try with os/exec https://golang.org/pkg/os/exec/ to execute a ssh

package main

import (
    "bytes"
    "log"
    "os/exec"
)

func main() {
    cmd := exec.Command("ssh", "remote-machine", "bash-command")
    var out bytes.Buffer
    cmd.Stdout = &out
    err := cmd.Run()
    if err != nil {
        log.Fatal(err)
    }
}

要跳过计算机，请在ssh配置文件中使用ProxyCommand指令。

To jump over machines use the ProxyCommand directive in a ssh config file.

Host remote_machine_name
  ProxyCommand ssh -q bastion nc remote_machine_ip 22

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