Tested on chrony which has a NetworkManager dispatch script that also works as a hook for networkd-dispatcher.
Works fine by just dropping the links for now. Changes visible when these hooks are in place 1. when sources get unreachable it detects offlining immediately (instead of trying all the time) 2. when a network drops but sources stay reachable nothing happens (no accidental offline) 3. when sources are offline and network is attached without connecting to anything they stay offline 4. when sources are offline and a connecting network is attached they all become online immediately 5. when a network is lost that was connecting to just to some sources only those get set offline. P.S. most of these cases can be well tested with virsh attach-device / detach-device with multiple network cards (one that connects to network and one that does not for example) The biggest issue is that reusing that is very nice, but OTOH dangerous if it gets NM only code. I'll start discussing that upstream before using it in any way. That happened post 3.2 in b563048 "examples: ignore non-up/down events in nm-dispatcher script" I'm now doing: 1. discussing upstream how we want to do it 2. bring that upstream for networkd-dispatcher 3. backport the change to Bionic chrony package 4. place the files to trigger the callbacks -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to ubuntu-fan in Ubuntu. https://bugs.launchpad.net/bugs/1718227 Title: replacement of ifupdown with netplan needs integration for /etc/network/if{up,down}.d scripts Status in aiccu package in Ubuntu: Invalid Status in aoetools package in Ubuntu: New Status in avahi package in Ubuntu: New Status in bind9 package in Ubuntu: Invalid Status in chrony package in Ubuntu: Confirmed Status in clamav package in Ubuntu: Triaged Status in controlaula package in Ubuntu: New Status in epoptes package in Ubuntu: New Status in ethtool package in Ubuntu: New Status in guidedog package in Ubuntu: New Status in htpdate package in Ubuntu: New Status in ifenslave package in Ubuntu: Won't Fix Status in ifmetric package in Ubuntu: Won't Fix Status in ifupdown-multi package in Ubuntu: New Status in ifupdown-scripts-zg2 package in Ubuntu: Invalid Status in isatapd package in Ubuntu: New Status in lprng package in Ubuntu: New Status in miredo package in Ubuntu: New Status in mythtv package in Ubuntu: New Status in nplan package in Ubuntu: New Status in nss-pam-ldapd package in Ubuntu: New Status in ntp package in Ubuntu: New Status in openntpd package in Ubuntu: New Status in openresolv package in Ubuntu: Won't Fix Status in openssh package in Ubuntu: New Status in openvpn package in Ubuntu: New Status in openvswitch package in Ubuntu: New Status in postfix package in Ubuntu: New Status in quicktun package in Ubuntu: New Status in resolvconf package in Ubuntu: New Status in sendmail package in Ubuntu: New Status in shorewall-init package in Ubuntu: New Status in sidedoor package in Ubuntu: New Status in slrn package in Ubuntu: New Status in tinc package in Ubuntu: New Status in ubuntu-fan package in Ubuntu: Fix Released Status in ucarp package in Ubuntu: New Status in uml-utilities package in Ubuntu: New Status in uruk package in Ubuntu: New Status in vlan package in Ubuntu: Won't Fix Status in vzctl package in Ubuntu: Triaged Status in wide-dhcpv6 package in Ubuntu: New Status in wpa package in Ubuntu: New Bug description: when network is configured with ifupdown, scripts in /etc/network/ifup.d/ were called on network being brought up and /etc/network/ifdown.d were called on network being brought down. Any packages that shipped these hooks need to be verified to have the same functionality under a netplan configured system. # binpkgs=$(apt-file search /etc/network/if-up | sed 's,: .*,,' | sort -u) # for i in $binpkgs; do src=$(apt-cache show $i | awk '$1 == "Source:" { print $2; exit(0); }'); [ -z "$src" ] && src="$i"; echo $src; done | sort -u aiccu aoetools avahi bind9 chrony clamav controlaula epoptes ethtool guidedog htpdate ifenslave ifmetric ifupdown-extra ifupdown-multi ifupdown-scripts-zg2 isatapd lprng miredo mythtv-backend nss-pam-ldapd ntp openntpd openresolv openssh openvpn postfix quicktun resolvconf sendmail shorewall-init sidedoor slrn tinc ubuntu-fan ucarp uml-utilities uruk vlan vzctl wide-dhcpv6 wpa Related bugs: * bug 1718227: replacement of ifupdown with netplan needs integration for /etc/network/if{up,down}.d scripts * bug 1713803: replacement of resolvconf with systemd needs integration * bug 1717983: replacement of isc-dhcp-client with with systemd-networkd for dhclient needs integration ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: netplan (not installed) ProcVersionSignature: Ubuntu 4.12.0-11.12-generic 4.12.5 Uname: Linux 4.12.0-11-generic x86_64 NonfreeKernelModules: zfs zunicode zavl zcommon znvpair ApportVersion: 2.20.7-0ubuntu1 Architecture: amd64 CurrentDesktop: GNOME Date: Tue Sep 19 10:53:08 2017 EcryptfsInUse: Yes InstallationDate: Installed on 2015-07-23 (789 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20150722.1) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: plan UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/aiccu/+bug/1718227/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp