AWS certificate manager gives an error if I try to deploy a single subdomain with no apex domain, like this:
This produced an error:
[ERROR] software.amazon.awssdk.services.acm.model.AcmException: 1 validation error detected: Value '' at 'subjectAlternativeNames' failed to satisfy constraint: Member must have length greater than or equal to 1 (Service: Acm, Status Code: 400, Request ID: …)
As a workaround the error could be suppressed by adding an alt domain:
We'll need to double-check the AWS SDK; we may have to put something in subjectAlternativeNames, wherever that is defined in the code.