An IBM Cloud DNS zone does not go into "Active" state unless a permitted network is added to it and so if we try to use a DNS Zone which does not have a VPC attached as a permitted network, the installer fails with the error "failed to get DNS Zone id" when such a zone is attempted to be used. We already have code to attach a permitted network to a DNS Zone, but it cannot be used unless the DNS Zone is in "Active" state. The zone does not even show up in the install-config survey

4.16, 4.17    

In the scenario where the user attempts to create a private cluster without attaching a permitted network to the DNS Zone.

    1. Create an IBM Cloud DNS zone in a DNS instance.
    2. openshift-install create install-config [OPTIONS]
    3. User created DNS zone won't show up in the selection for DNS Zone
    4. Proceed anyway choosing another private DNS zone.
    5. Edit the generated install-config and change basedomain to your zone.
    6. openshift-install create manifests [OPTIONS]
    7. The above step will fail with "failed to get DNS Zone id".

DNS Zone is not visible in the survey and creating manifests fails.

The DNS zone without permitted networks shows up in the survey and the installation completes.