netcfg does not setup search domains and nameservers via netplan

[Dimitri John Ledkov]

netcfg does not setup search domains and nameservers via netplan

[Frank Heimes (fheimes)]

$ cat /etc/netplan/01-netcfg.yaml
# This file describes the network interfaces available on your system
# For more information, see netplan(5).
network:
  version: 2
  renderer: networkd
  ethernets:
    encc000:
      dhcp4: no
      dhcp6: no
  vlans:
    encc000.2653:
      link: encc000
      id: 2653
      addresses: [ 10.245.236.11/24 ]
      gateway4: 10.245.236.1

$ cat /etc/network/interfaces
 # dns-* options are implemented by the resolvconf package, if installed
 dns-nameservers 10.245.236.1
 dns-search canonical.com

$ cat /etc/resolv.conf
# This file is managed by man:systemd-resolved(8). Do not edit.
#
# 127.0.0.53 is the systemd-resolved stub resolver.
# run "systemd-resolve --status" to see details about the actual nameservers.
nameserver 127.0.0.53

[Dimitri John Ledkov (xnox)]

It looks like in the static.c case, we call

683 netcfg_write_interface(client, iface);
684 netcfg_write_resolvconf_options(domain, iface);
685 netcfg_write_resolv(domain, iface);

This results in dns-* strings written into e-n-i, instead of writing keys in netplan.
imho domain should be passed to write_interface, and the later two functions should be no-op in netplan case.

[Launchpad Janitor (janitor)]

This bug was fixed in the package netcfg - 1.142ubuntu5

---------------
netcfg (1.142ubuntu5) artful; urgency=medium

  * Make sure we write nameservers and search domains correctly when using
    netplan to drive network configuration. (LP: #1721798)
  * Fix writing IPv6 static config in the netplan case.

 -- Mathieu Trudel-Lapierre <email address hidden> Thu, 12 Oct 2017 09:31:02 -0400