A dhclient configuration option is used to add localhost to resolv.conf, but this does not work for Ipv6 clusters. We must switch to a script run by Networkmanager instead.
Verified on 4.4.0-0.nightly-2020-02-11-124749
on the boostrap VM:
[core@localhost ~]$ cat /etc/resolv.conf
# Generated by NetworkManager
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.