Migrating workloads from one AWS account to another

The procedure for transferring the domain registration between AWS accounts is documented here: https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/domain-transfer-between-aws-accounts.html

You can copy the hosted zone to the destination account, and either before or after transferring the domain registration, change the name servers for the domain to point to the hosted zone in the new account. There will be no downtime, because regardless of whether users' DNS queries go to the old zone or new zone due to regular DNS caching across the internet, they'll receive identical responses, because the zone contents are identical.

The only impact will be that during the time that parts of the internet will be querying the old zone and other parts the new one, you'll have to make any changes you need in both zones.

Hi,

This blog post details the core strategies to migrate resources and workloads across accounts: https://aws.amazon.com/blogs/architecture/migrate-resources-between-aws-accounts/

Of course, it is to adapted to your specific use case but the proposed solutions are widely applicable.

On your Route53 question, this official documentation page provides the procedure to follow: https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/domain-transfer-between-aws-accounts.html

Best,

Didier