As EIP are billed if unused in AWS, simple script to delete all unused EIPs

delete_unused_eip.py

import os
import boto3
key=os.environ['TF_VAR_aws_access_key']
secret=os.environ['TF_VAR_aws_secret_key']
client = boto3.client('ec2', region_name=os.environ['TF_VAR_region'], aws_access_key_id=key, aws_secret_access_key=secret)


def elastic_ips_cleanup(client_connection):
    """ Cleanup elastic IPs that are not being used """
    addresses_dict = client_connection.describe_addresses()
    for eip_dict in addresses_dict['Addresses']:
        print eip_dict
        if "NetworkInterfaceId" not in eip_dict:
            print (eip_dict['PublicIp'] +
                   " doesn't have any instances associated, releasing")
            client_connection.release_address(AllocationId=eip_dict['AllocationId'])


elastic_ips_cleanup(client)