CI not running IPv6 test portions
Summary
Out CI tests are have 16 times "IPv6 unavailable; skipping", e.g:
I:digdelv:IPv6 unavailable; skipping
I:digdelv:checking dig @IPv4addr -6 +mapped A a.example (26)
I:digdelv:IPv6 or IPv4-to-IPv6 mapping unavailable; skipping
I:digdelv:checking dig +tcp @IPv4addr -6 +nomapped A a.example (27)
I:digdelv:IPv6 unavailable; skipping
I:digdelv:checking dig +notcp @IPv4addr -6 +nomapped A a.example (28)
I:digdelv:IPv6 unavailable; skipping
I:digdelv:checking dig +subnet (29)
See, e.g. https://gitlab.isc.org/isc-projects/bind9/-/jobs/333501.
I see this in CI jobs from beginning of September, so this is not a new thing.
The reason probably being, that our CI hosts do not have IPv6 networking set properly (e.g. using documentation prefix and probably other things are wrong or missing there):
root@gitlab-ci-07:~# cat /etc/docker/daemon.json
{ "ipv6": true, "fixed-cidr-v6": "2001:db8:1::/64" }
BIND version used
HEAD
Steps to reproduce
Just open any System job in CI and look for "IPv6 unavailable; skipping" in the log.