ROSA Shared-VPC hosted zone clean-up

This article serves as supplemental documentation for customers that deploy ROSA clusters in a shared-VPC environment, where cleanup actions may not fully remove resources that would collide with future attempts at cluster installations.

Environment: Red Hat OpenShift Service on AWS (ROSA) (Classic)

After the removal of a shared-VPC cluster with rosa remove cluster -c <cluster> the uninstall process would complete successfully, however three DNS records would not be removed from the private hosted zone.

In situations where the DNS records remain, any subsequent install attempts using the same cluster base domain would result in installation errors, blocking installs from proceeding and succeeding.

A bug fix is in progress for this issue and in the meantime we advise that customers carefully inspect and remove the route53 records in the private hosted zone that match the cluster name, prior to attempting new cluster installs in a shared-VPC environment.

If you have any concerns or questions, please feel free to open a support case.