- AWS Code Sample demonstrates how to allocate an elastic IP address for an EC2 instance.

/* * Copyright 2010-2019, Inc. or its affiliates. All Rights Reserved. * * Licensed under the Apache License, Version 2.0 (the "License"). * You may not use this file except in compliance with the License. * A copy of the License is located at * * * * or in the "license" file accompanying this file. This file is distributed * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either * express or implied. See the License for the specific language governing * permissions and limitations under the License. */ package aws.example.ec2; import; import; import; import; import; import; import; /** * Allocates an elastic IP address for an EC2 instance */ public class AllocateAddress { public static void main(String[] args) { final String USAGE = "To run this example, supply an instance id\n" + "Ex: AllocateAddress <instance_id>\n"; if (args.length != 1) { System.out.println(USAGE); System.exit(1); } String instance_id = args[0]; final AmazonEC2 ec2 = AmazonEC2ClientBuilder.defaultClient(); AllocateAddressRequest allocate_request = new AllocateAddressRequest() .withDomain(DomainType.Vpc); AllocateAddressResult allocate_response = ec2.allocateAddress(allocate_request); String allocation_id = allocate_response.getAllocationId(); AssociateAddressRequest associate_request = new AssociateAddressRequest() .withInstanceId(instance_id) .withAllocationId(allocation_id); AssociateAddressResult associate_response = ec2.associateAddress(associate_request); System.out.printf( "Successfully associated Elastic IP address %s " + "with instance %s", associate_response.getAssociationId(), instance_id); } }

Sample Details

Service: ec2

Last tested: 2018-05-22

Author: soo-aws

Type: full-example