This seems to be the new correct way : How to keep separate custom DNS records on V6 - via Ansible - #2 by Bucking_Horn 
/EDIT :
OK... maybe not...
See below =>
This seems to be the new correct way : How to keep separate custom DNS records on V6 - via Ansible - #2 by Bucking_Horn
/EDIT :
OK... maybe not...
See below =>