Wireguard conf is incorrect if Endpoint `IP_subject_alt_name` is an IPv6 Address

[adfernandes]

If an IPv6 address is used a wireguard endpoint IP_subject_alt_name address, the configuration template file will generate a bad conf file.

Specifically, the template will generate something like this:

...
AllowedIPs = 0.0.0.0/0,::/0
Endpoint = 2600:3c01::f03c:91ff:fedf:3b2a:51820

To be correct, the IPv6 address needs square brackets around it, like this:

...
AllowedIPs = 0.0.0.0/0,::/0
Endpoint = [2600:3c01::f03c:91ff:fedf:3b2a]:51820

So different templates are needed for IPv6 and IPv4/DNS-name endpoint addresses.

If someone can point out the right way to do that with ansible/jinja, I'd be happy to make and test a PR!

[jackivanov]

Using ipwrap should help