This bug was fixed in the package nplan - 0.32~16.04.7

nplan (0.32~16.04.7) xenial; urgency=medium

  * Backport DBus support to 16.04. (LP: #1842511)
  * debian/control: add libsystemd-dev to Build-Depends, required for this new
    DBus support.

 -- Mathieu Trudel-Lapierre <>  Thu, 05 Sep 2019
12:58:36 -0400

** Changed in: nplan (Ubuntu Xenial)
       Status: Fix Committed => Fix Released

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Matching subscriptions: Ubuntu 16.04 Bugs

  Backport DBus support to 16.04

Status in package in Ubuntu:
  Fix Released
Status in nplan package in Ubuntu:
  Fix Released
Status in source package in Xenial:
  Won't Fix
Status in nplan source package in Xenial:
  Fix Released

Bug description:
  Snapd will want to make use of the DBus support to call on netplan to apply 
network configuration changes live, when asked by snap applications.

  [Test case]
  Run the following command:
  $ dbus-send --print-reply --system --type=method_call 
--dest=io.netplan.Netplan /io/netplan/Netplan io.netplan.Netplan.Apply

  You should expect to see a response like this:

  method return time=1567801560.502553 sender=:1.1712 -> destination=:1.1714 
serial=6 reply_serial=2
     boolean true

  Which means the command was run; netplan configuration was applied.

  Check that any changes to the netplan YAML were applied to the

  [Regression potential]
  Pay close attention to the behavior of the 'netplan apply' command, which has 
had to be slightly changed to behave correctly when run in the context of snaps 
(when the SNAP environment variable is set). Any issues there would have to be 
considered as potential regressions from the update. Regression potential is 
very low because the changes are limitted to ensuring there; that 'netplan 
apply' does the right thing in calling the dbus methods when they should, which 
will then run the command correctly.
  Other changes are limited to providing the new netplan-dbus binary, which is 


  Please backport the DBus feature in netplan to Ubuntu 16.04's version
  of netplan.

  netplan is used on Core 16; DBus support would be used by snapd.

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