IPv6 for country mirrors

[Michael Hock]

Hi all,

I hope this is the right place to discuss this.
I'm responsible for a couple of hundred servers which run ubuntu server
16.04/18.04/20.04. Also there are many virtual machines running, including
databases, webservers, monitoring, ... but most of them only have IPv6
connectivity to the public internet. As all of you might know, for leased
IPv4 addresses you usually have to pay some money and for many (internal)
services IPv4 is just not needed any more.

So the problem here is, most of the country specific ubuntu mirrors are not
IPv6 enabled. So what are we doing? In our head location we use IPv4 NAT
(country mirror not providing IPv6 there), in remote locations "just use
the US mirror, it has IPv6".

Would it be possible to provide sort of a fallback IPv6 address for all the
country specific mirrors, so it would at least work if there is only IPv6
connectivity to the public internet?
Reaching out to individual mirror operators was not successful (tried to
contact a few, they're not seeing it in their responsibility to provide
IPv6 connectivity to their mirrors).

I would provide a couple of IPv6 only mirrors for some locations by myself,
but of course it's impossible for me to provide mirrors for every country.
So I hope there are more people willing to either upgrade their current
mirrors to also provide IPv6, or to set up additional (IPv6 only) mirrors
which are then added as DNS AAAA records to existing country specific
mirrors.

Looking forward to hear your opinion on this.

Best regards,
Michael Hock
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