如何在python中获取当前ec2实例的公共ip？

如何在python中获取当前EC2实例的公共ip地址？

如果您已经在使用

boto

，您还可以使用

boto.utils.get\u instance\u metadata

函数。这将调用元数据服务器，收集所有元数据并将其作为Python字典返回。它还处理重试。

以下方法将返回EC2实例的公共IP或弹性IP地址（注意：如果EIP地址与EC2实例关联，则公共IP地址实际上已释放）

import urllib.request
urllib.request.urlopen("http://169.254.169.254/latest/meta-data/public-ipv4").read()

def console(cmd):
    p = Popen(cmd,shell=True,stdout=PIPE)
    out,err = p.communicate()
    dir_list = out.split('\n')
    return (dir_list)
ip = console("http://169.254.169.254/latest/meta-data/public-ipv4")
print ip 

这对于Django项目特别有用，因为您可以在settings.py脚本中将IP地址附加到允许的_主机

• 安装PyCurl

  pip install pycurl
  

• Python 3

  import pycurl
  from io import BytesIO
  
  # Determine Public IP address of EC2 instance
  buffer = BytesIO()
  c = pycurl.Curl()
  c.setopt(c.URL, 'checkip.amazonaws.com')
  c.setopt(c.WRITEDATA, buffer)
  c.perform()
  c.close()
  body = buffer.getvalue()
  # Body is a byte string, encoded. Decode it first.
  print (body.decode('iso-8859-1').strip())
  

• Python 2

  import pycurl
  from StringIO import StringIO
  
  buffer = StringIO()
  c = pycurl.Curl()
  c.setopt(c.URL, 'checkip.amazonaws.com')
  c.setopt(c.WRITEDATA, buffer)
  c.perform()
  c.close()
  
  body = buffer.getvalue()
  # Body is a string in some encoding.
  # In Python 2, we can print it without knowing what the encoding is.
  print (body)
  

---

干杯。

介绍了如何使用HTTP GET检索实例的IP地址。您的回答相当简单，也许您可以解释一下这是如何工作的。这是amazon ec2特有的还是什么？@CrazyCastaL看这里：

local-ipv4

元数据将包含实例的私有IP地址，该地址仅在AWS网络中有用。公共IP地址将作为

public-ipv4

提供。

import pycurl
from StringIO import StringIO

buffer = StringIO()
c = pycurl.Curl()
c.setopt(c.URL, 'checkip.amazonaws.com')
c.setopt(c.WRITEDATA, buffer)
c.perform()
c.close()

body = buffer.getvalue()
# Body is a string in some encoding.
# In Python 2, we can print it without knowing what the encoding is.
print (body)