使用python重启后检查AWS实例是否启动 [英] To check whether AWS instance is up after reboot using python

问题描述

是否有一种方法可以使用boto3或其他方式检查AWS实例是否最终在python中出现.运行状态不会在重新启动阶段和最终启动阶段之间进行区分.

Is there a way to check if an AWS instance has finally come up in python either using boto3 or otherwise. The running state doesnt differentiate between rebooting and finally up phase.

推荐答案

如果只想检查远程端口是否打开，则可以使用内置的

If you just want to check that a remote port is open you could use the built-in socket package.

这里是此答案的快速修改，用于等待远程端口打开:

Here's a quick modification of this answer of waiting for a remote port to open:

import socket
import time

def wait_for_socket(host, port, retries, retry_delay=30):
    retry_count = 0
    while retry_count <= retries:
        sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        result = sock.connect_ex((host, port))
        sock.close()
        if result == 0:
            print "Port is open"
            break
        else:
            print "Port is not open, retrying..."
            time.sleep(retry_delay)

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