[Bug 1892798] Re: eliminating resolvconf/openresolv dependencies

[Dimitri John Ledkov]

In ubuntu everything should feed DNS information direct into resolved whenever possible.
We are working on improving it, for example in groovy isc-dhcp-client & ifupdown started to do that too.

Unfortunately systemd's resolved's resolvctl is not compatible with
Debian's/Ubuntu's historical resolvconf.

Specifically Debian/Ubuntu has a lot of $interface.$suffix where $suffix
is arbitrary, such syntax is widely used and not supported by systemd.

So for the time being it is not possible to switch /sbin/resolvconf to
be the one provided by systemd.

** Changed in: systemd (Ubuntu)
       Status: Confirmed => Won't Fix

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Title:
  eliminating resolvconf/openresolv dependencies

Status in systemd package in Ubuntu:
  Won't Fix
Status in wireguard package in Ubuntu:
  Confirmed

Bug description:
  By default Ubuntu now uses systemd to manage the nameservers in
  resolv.conf, so resolvconf and openresolv seem to be redundant.
  However, it appears that systemd's resolvectl is compatable with
  resolvconf style commands if symlinked as resolvconf.

  I'm not really sure how deb packaging works, but if it possible to
  check for the resolvconf command, and if not found just symlink
  /usr/bin/resolvectl to /usr/sbin/resolvconf then wg-quick will work
  without additional packages.

  See
  https://manpages.ubuntu.com/manpages/focal/man1/resolvectl.1#compatibility%20with%20resolvconf(8)
  for more info.

  Apologies if there is a better place to direct this info.

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