我正在使用Python Boto3代码,当Auto Scaling组中的实例被终止时,它会通知SNS,SNS将消息发布到SQS。当SNS被通知时,也会触发Lambda,执行一个Boto脚本从SQS中抓取消息。
我正在使用在Amazon SQS中发送和接收消息的参考代码。
以下是代码片段:
结果如下:
我正在使用在Amazon SQS中发送和接收消息的参考代码。
以下是代码片段:
if messages.get('Messages'):
m = messages.get('Messages')[0]
body = m['Body']
print('Received and deleted message: %s' % body)
结果如下:
START RequestId: 1234-xxxxxxxx Version: $LATEST
{
"Type" : "Notification",
"MessageId" : "d1234xxxxxx",
"TopicArn" : "arn:aws:sns:us-east-1:xxxxxxxxxx:AutoScale-Topic",
"Subject" : "Auto Scaling: termination for group \"ASG\"",
"Message" : "{\"Progress\":50,\"AccountId\":\"xxxxxxxxx\",\"Description\":\"Terminating EC2 instance: i-123456\",\"RequestId\":\"db-xxxxx\",\"EndTime\":\"2017-07-13T22:17:19.678Z\",\"AutoScalingGroupARN\":\"arn:aws:autoscaling:us-east-1:360695249386:autoScalingGroup:fef71649-b184xxxxxx:autoScalingGroupName/ASG\",\"ActivityId\":\"db123xx\",\"EC2InstanceId\":\"i-123456\",\"StatusCode\"\"}",
"Timestamp" : "2017-07-",
"SignatureVersion" : "1",
"Signature" : "",
"SigningCertURL" : "https://sns.us-east-1.amazonaws.com/..",
"UnsubscribeURL" : "https://sns.us-east-1.amazonaws.com/
}
我只需要终止实例的EC2InstanceId
而不是整个消息。 我该如何提取ID?