CAF Secure Baseline : Service Domain Purchase for each deployment

[kev-ms]

• Per investigation in App Service Domain terraform error #753, following each deployment of aks secure baseline using CAF settings in domain.tfvars, it purchases new random domain.
• The current limit is 20 per subscription. if reached the limit to purchasing domains on your subscription, this error is noticed
  Subscription has reached the limit on the number of App Service Domain resources it can create. Please contact support if you want to increase the limit.
• If your domain was deleted less than 7 days ago , the domain has not yet started the deletion process. Hence you can buy the same domain again on Azure portal under the same subscription (make sure to type the exact domain name in search text box). You will not be charged again for this domain. If the domain was deleted more than 7 days ago , please contact Microsoft Azure support for assistance to restore the domain. Ref: https://azure.github.io/AppService/2017/08/08/FAQ-App-Service-Domain-and-Custom-Domains.html