boto3是否等同于boto.utils.get_instance_metadata()? [英] boto3 equivalent to boto.utils.get_instance_metadata()?

问题描述

在常规boto 2.38中，我曾经通过boto的

In regular boto 2.38 I used to access instance metadata (e.g. get current stack-name), through boto's

boto.utils.get_instance_metadata()

boto3中是否有一个等效项，还是我需要转到下级直接http地址以获取有关正在运行的实例的元数据?

Is there an equivalent in boto3, or do I need to go to the down level direct http address to fetch metadata about the running instance?

推荐答案

不，仍然没有boto3的同等功能，我自己就弥补了这一差距.
他们对此 https://github.com/boto/boto3/issues/313具有开放功能要求引用了这个问题.

Nope, still no equivalent in boto3, just hit this gap myself.
They have an open feature request for this https://github.com/boto/boto3/issues/313 that references this question.

关于解决方法，
您可以继续使用boto.utils或使用urllib/urllib2手动执行HTTP请求，即.

As for workarounds,
you can continue to use boto.utils or use urllib/urllib2 to do the HTTP requests manually ie.

# Python2
import urllib2
instanceid = urllib2.urlopen('http://169.254.169.254/latest/meta-data/instance-id').read()

# Python3
import urllib.request
instanceid = urllib.request.urlopen('http://169.254.169.254/latest/meta-data/instance-id').read().decode()

请参见最快的HTTP GET方法中有关urllib和 http://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/ec2-instance-metadata.html#instancedata-data-categories 用于元数据服务的URI结构.

see What is the quickest way to HTTP GET in Python? for a quick intro on urllib and http://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/ec2-instance-metadata.html#instancedata-data-categories for the URI structure of the metadata service.

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