boto3 wait_until_running 无法按预期工作

Question

我正在尝试使用 boto3 编写一个脚本来启动一个实例并等待它启动。根据wait_until_running的文档，它应该等到实例完全启动（我假设检查应该没问题）但不幸的是它只适用于wait_until_stopped和incase wait_until_running它只是启动实例而不是等到它完全开始了。不确定我在这里做错了什么，或者这是 boto3 的错误。

这是代码：

import boto3


ec2 = boto3.resource('ec2',region_name="ap-southeast-2")
ec2_id = 'i-xxxxxxxx'
instance = ec2.Instance(id=ec2_id)
print("starting instance " + ec2_id)
instance.start()
instance.wait_until_running()
print("instance started")

Answer 1

感谢@Mark B @Madhurya Gandi，这里是适用于我的解决方案：

import boto3,socket
retries = 10
retry_delay=10
retry_count = 0
ec2 = boto3.resource('ec2',region_name="ap-southeast-2")
ec2_id = 'i-xxxxxxxx'
instance = ec2.Instance(id=ec2_id)
print("starting instance " + ec2_id)
instance.start()
instance.wait_until_running()
while retry_count <= retries:
    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    result = sock.connect_ex((instance.public_ip_address,22))
    if result == 0:
        Print "Instance is UP & accessible on port 22, the IP address is:  ",instance.public_ip_address
        break
    else:
        print "instance is still down retrying . . . "
        time.sleep(retry_delay)
   except ClientError as e:
       print('Error', e)