如何使用 boto3 在 EC2 中通过 SSH 和运行命令? [英] How to SSH and run commands in EC2 using boto3?

问题描述

我希望能够通过 ssh 连接到 EC2 实例，并在其中运行一些 shell 命令，例如 this.

I want to be able to ssh into an EC2 instance, and run some shell commands in it, like this.

我如何在 boto3 中做到这一点?

How do I do it in boto3?

推荐答案

您可以使用以下代码片段通过 ssh 连接到 EC2 实例并从 boto3 运行一些命令.

You can use the following code snippet to ssh to an EC2 instance and run some command from boto3.

import boto3
import botocore
import paramiko

key = paramiko.RSAKey.from_private_key_file(path/to/mykey.pem)
client = paramiko.SSHClient()
client.set_missing_host_key_policy(paramiko.AutoAddPolicy())

# Connect/ssh to an instance
try:
    # Here 'ubuntu' is user name and 'instance_ip' is public IP of EC2
    client.connect(hostname=instance_ip, username="ubuntu", pkey=key)

    # Execute a command(cmd) after connecting/ssh to an instance
    stdin, stdout, stderr = client.exec_command(cmd)
    print stdout.read()

    # close the client connection once the job is done
    client.close()
    break

except Exception, e:
    print e

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