Azure Active Directory Domain Services Creation issue

Creating a valid AADDS instance requires that the DNS at the VNET level are set to the AADDS domain controllers IPs.
How can we achieve this with terraform?
If I set the dns_servers=[…] at the VNET level is executed before the AADDS creation which fails.
We need to have somehow this done by Terraform after the ADDS creation.
We also need to be able to export those IPs as we need them for any other peered VNET.

Please advise