parse the list of AWS service IPs and filter given a list of regions and or services

awsiprangefilter.py

#!/usr/bin/python

import json
import sys, getopt

ip_ranges_file_name = None
regions = None
services = None
try:
  opts, args = getopt.getopt(sys.argv[1:],"hf:r:s:",["file=","regions=","services=","help"])
except getopt.GetoptError:
  print 'awsiprangesfilter [--file <inputfile>] [--regions region1,...] [--services service1,...]'
  sys.exit(2)
for opt, arg in opts:
  if opt in ('-h', "--help"):
    print 'awsiprangesfilter [--file <inputfile>] [--regions region1,...] [--services service1,...]'
    sys.exit()
  elif opt in ("-f", "--file"):
    ip_ranges_file_name = arg
  elif opt in ("-r", "--regions"):
    regions = arg.split(',')
  elif opt in ("-s", "--services"):
    services = arg.split(',')

if ip_ranges_file_name is None:
  ip_ranges_file_name = '/tmp/ip-ranges.json'
with open(ip_ranges_file_name) as data_file:
  ranges = json.load(data_file)
for r in ranges["prefixes"]:
  if regions and r["region"] in regions:
    if services and r["service"] in services:
      print r["ip_prefix"]
    if not services:
      print r["ip_prefix"]
  if not regions:
    if services and r["service"] in services:
      print r["ip_prefix"]
    if not services:
      print r["ip_prefix"]