Add a CNAME record in Route53 using python boto3

add_cname_route53.py

import boto3

client = boto3.client('route53')

def add_cname_record(source, target):
	try:
		response = client.change_resource_record_sets(
		HostedZoneId='<hosted zone id>',
		ChangeBatch= {
						'Comment': 'add %s -> %s' % (source, target),
						'Changes': [
							{
							 'Action': 'UPSERT',
							 'ResourceRecordSet': {
								 'Name': source,
								 'Type': 'CNAME',
								 'TTL': 300,
								 'ResourceRecords': [{'Value': target}]
							}
						}]
		})
	except Exception as e:
		print e

If you use Route53Client for PHP, copy this code and change variables

$zoneId = ZONE123ID45EXAMPLE;
$domainName = 'www.example.com';
$cnameTo = 'www.example.com.iam.cname';
$response = $this->client->changeResourceRecordSets([
            'HostedZoneId' => $zoneId, 
            'ChangeBatch' => [
                'Changes' => [
                    [
                        'Action' => ChangeAction::CREATE, //CREATE
                        "ResourceRecordSet" => [
                            'Name' => $domainName,
                            'Type' => RRType::CNAME,  //CNAME
                            'TTL' => 300,
                            'ResourceRecords' => [
                                [
                                    'Value' => $cnameTo
                                ],
                            ],
                        ],
                    ],
                ],
            ],
        ]);

You can also wait for the answer from route53

$this->client->resourceRecordSetsChanged(['Id' => $response->getChangeInfo()->getId()])->wait();