[Bug 2081124] Re: systemd service dependency loop between cloud-init, NetworkManager and dbus

[Chad Smith]

Thank your for filing this bug, if possible, please perform the
following to aid in debugging:

1. inform the bug on which Ubuntu release this issue occurs, possibly
the desktop image build date,

2. # get versions of network-manager, systemd and cloud-init
for pkg in cloud-init systemd network-manager; do
dpkg-query -W $pkg
done

3. # run the following to list expected systemd ordering
for service_name in cloud-init.service NetworkManager-wait-online.service  dbus.service do
   echo ====  $service_name systemd ordering dependencies
   systemctl show -p -p Requires,Wants,Before,After $service_name
done

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https://bugs.launchpad.net/bugs/2081124

Title:
  systemd service dependency loop between cloud-init, NetworkManager and
  dbus

Status in OEM Priority Project:
  New
Status in cloud-init package in Ubuntu:
  New
Status in livecd-rootfs package in Ubuntu:
  New

Bug description:
  We got errors that some services like snapd and NetworkManager is not
  started when running cloud-init or desktop, excerpt from journal
  below:

  Sep 13 12:37:41 localhost.localdomain systemd[1]: cloud-init.service: Found ordering cycle on NetworkManager-wait-online.service/start
  Sep 13 12:37:41 localhost.localdomain systemd[1]: cloud-init.service: Found dependency on basic.target/start
  Sep 13 12:37:41 localhost.localdomain systemd[1]: cloud-init.service: Found dependency on sockets.target/start
  Sep 13 12:37:41 localhost.localdomain systemd[1]: cloud-init.service: Found dependency on cloud-init-hotplugd.socket/start
  Sep 13 12:37:41 localhost.localdomain systemd[1]: cloud-init.service: Found dependency on cloud-config.target/start
  Sep 13 12:37:41 localhost.localdomain systemd[1]: cloud-init.service: Found dependency on cloud-init.service/start
  Sep 13 12:37:41 localhost.localdomain systemd[1]: cloud-init.service: Job NetworkManager-wait-online.service/start deleted to break ordering cycle starting with cloud-init.service/start
  Sep 13 12:37:41 localhost.localdomain systemd[1]: NetworkManager.service: Found ordering cycle on dbus.service/start
  Sep 13 12:37:41 localhost.localdomain systemd[1]: NetworkManager.service: Found dependency on basic.target/start
  Sep 13 12:37:41 localhost.localdomain systemd[1]: NetworkManager.service: Found dependency on sockets.target/start
  Sep 13 12:37:41 localhost.localdomain systemd[1]: NetworkManager.service: Found dependency on cloud-init-hotplugd.socket/start
  Sep 13 12:37:41 localhost.localdomain systemd[1]: NetworkManager.service: Found dependency on cloud-config.target/start
  Sep 13 12:37:41 localhost.localdomain systemd[1]: NetworkManager.service: Found dependency on cloud-init.service/start
  Sep 13 12:37:41 localhost.localdomain systemd[1]: NetworkManager.service: Found dependency on NetworkManager.service/start
  Sep 13 12:37:41 localhost.localdomain systemd[1]: NetworkManager.service: Job dbus.service/start deleted to break ordering cycle starting with NetworkManager.service/start

  Related logs and service files are attached in sosreport.

  Internal reference: NANTOU-473

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