[Bug 1775581] [NEW] networkd-dispatcher ignoring status changes

[Hadmut Danisch]

Public bug reported:

Hi,

Canonical recommends under 
https://netplan.io/faq#bring-interfaces-up-or-down

to use networkd-dispatcher as a replacement for /etc/network/if-up.d, and to take interfaces up and down with 
ip link set enp3s0 up
ip link set enp3s0 down


I've configured netplan to create a local bridge, which works, and ip link configures it up and down.

But networkd-dispatcher does not execute the script I've put in /usr/lib
/networkd-dispatcher/routable.d . An strace shows that it does not do
anything, not even take notice of the status change.

Since networkd is related to systemd I've tried

systemctl stop sys-devices-virtual-net-vlan0.device

instead (vlan0 is the name of the virtual bridge), which just does not
terminate and hang forever.


I currently don't see how to port services, that were running well since
8.04, onto 18.04. I just don't see a plain and clean way to start
services for particular interfaces (here: configure iptables, start a
dnsmasq instance for this interface,...)

regards

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: networkd-dispatcher 1.7-0ubuntu3
ProcVersionSignature: Ubuntu 4.15.0-22.24-generic 4.15.17
Uname: Linux 4.15.0-22-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.9-0ubuntu7.1
Architecture: amd64
CurrentDesktop: LXDE
Date: Thu Jun  7 12:46:25 2018
InstallationDate: Installed on 2018-04-30 (38 days ago)
InstallationMedia: Lubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
PackageArchitecture: all
SourcePackage: networkd-dispatcher
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: networkd-dispatcher (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug bionic

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https://bugs.launchpad.net/bugs/1775581

Title:
  networkd-dispatcher ignoring status changes

Status in networkd-dispatcher package in Ubuntu:
  New

Bug description:
  Hi,

  Canonical recommends under 
  https://netplan.io/faq#bring-interfaces-up-or-down

  to use networkd-dispatcher as a replacement for /etc/network/if-up.d, and to take interfaces up and down with 
  ip link set enp3s0 up
  ip link set enp3s0 down

  
  I've configured netplan to create a local bridge, which works, and ip link configures it up and down.

  But networkd-dispatcher does not execute the script I've put in
  /usr/lib/networkd-dispatcher/routable.d . An strace shows that it does
  not do anything, not even take notice of the status change.

  Since networkd is related to systemd I've tried

  systemctl stop sys-devices-virtual-net-vlan0.device

  instead (vlan0 is the name of the virtual bridge), which just does not
  terminate and hang forever.


  I currently don't see how to port services, that were running well
  since 8.04, onto 18.04. I just don't see a plain and clean way to
  start services for particular interfaces (here: configure iptables,
  start a dnsmasq instance for this interface,...)

  regards

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: networkd-dispatcher 1.7-0ubuntu3
  ProcVersionSignature: Ubuntu 4.15.0-22.24-generic 4.15.17
  Uname: Linux 4.15.0-22-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
  ApportVersion: 2.20.9-0ubuntu7.1
  Architecture: amd64
  CurrentDesktop: LXDE
  Date: Thu Jun  7 12:46:25 2018
  InstallationDate: Installed on 2018-04-30 (38 days ago)
  InstallationMedia: Lubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
  PackageArchitecture: all
  SourcePackage: networkd-dispatcher
  UpgradeStatus: No upgrade log present (probably fresh install)

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