AWS CDK TypeScript issue [type='CNAME'] but it already exists

Question

I am new to AWS CDK TypeScript.

My issue is: [Tried to create resource record set [name='xxxxx', type='CNAME'] but it already exists]"}

Using AWS CDK TypeScript I am creating stacks in eu-west1 and eu-central regions. So is there any mechanism to check if cname is not created then only create?

My code current code:

   const cName = new route53.CnameRecord(this, "cName", {
            zone: route53.HostedZone.fromLookup(this, "lowerHostedZone3", {
                domainName: topDomain,
            }),
  
            recordName: topFQDN,
            domainName: lowerFQDN

        }); 

Answer 1

Deploying the stack in multiple regions will probably create the same entry twice (one for eu-west-1 and one for eu-central-1). Since route53 is a global service, this could be the cause of the error you see.

Instead of doing a lookup you can simply choose to make 1 region leading for DNS, or include the region name in the DNS entries (my-service.eu-west-1.my-domain.com), and then front it with something like cloudfront or global accelerator to do global routing to the nearest region.