ec2_delete_unused_eips.py

#  https://github.com/dannysteenman/aws-toolbox
#
#  License: MIT
#
# This script finds and deletes all unused Elastic IPs in all AWS Regions

import boto3

ec2 = boto3.resource("ec2")

unused_ips = {}

for region in ec2.meta.client.describe_regions()["Regions"]:
    region_name = region["RegionName"]
    try:
        ec2conn = boto3.client("ec2", region_name=region_name)
        addresses = ec2conn.describe_addresses(
            Filters=[{"Name": "domain", "Values": ["vpc"]}]
        )["Addresses"]
        for address in addresses:
            if (
                "AssociationId" not in address
                and address["AllocationId"] not in unused_ips
            ):
                unused_ips[address["AllocationId"]] = region_name
                ec2conn.release_address(AllocationId=address["AllocationId"])
                print(
                    f"Deleted unused Elastic IP {address['PublicIp']} in region {region_name}"
                )
    except Exception as e:
        print(f"No access to region {region_name}: {e}")

print(f"Found and deleted {len(unused_ips)} unused Elastic IPs across all regions:")
print(unused_ips)