[Bug 1885264] Re: neutron-ovs-cleanup runs on package upgrade

[Łukasz Zemczak]

Hello James, or anyone else affected,

Accepted neutron into focal-proposed. The package will build now and be
available at
https://launchpad.net/ubuntu/+source/neutron/2:16.0.0-0ubuntu0.20.04.2
in a few hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, what testing has been
performed on the package and change the tag from verification-needed-
focal to verification-done-focal. If it does not fix the bug for you,
please add a comment stating that, and change the tag to verification-
failed-focal. In either case, without details of your testing we will
not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

** Changed in: neutron (Ubuntu Focal)
       Status: In Progress => Fix Committed

** Tags added: verification-needed verification-needed-focal

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OpenStack, which is subscribed to neutron in Ubuntu.
https://bugs.launchpad.net/bugs/1885264

Title:
  neutron-ovs-cleanup runs on package upgrade

Status in Ubuntu Cloud Archive:
  In Progress
Status in Ubuntu Cloud Archive ussuri series:
  In Progress
Status in Ubuntu Cloud Archive victoria series:
  In Progress
Status in neutron package in Ubuntu:
  Fix Released
Status in neutron source package in Focal:
  Fix Committed
Status in neutron source package in Groovy:
  Fix Released

Bug description:
  == Impact ==

  Upgrades to OpenStack Ussuri will result in service disruption to the
  network datapath for instances and other virtual networking concepts.

  == Test Case ==

  Standalone

  (UCA)
  add-apt-repository cloud-archive:train
  apt install neutron-openvswitch-agent
  add-apt-repository cloud-archive:ussuri
  apt dist-upgrade

  (neutron-ovs-cleanup will be restarted)

  Full cloud (UCA or distro)
  Deploy OpenStack Train (using Juju charms)
  Create networking, boot instances and confirm connectivity to instances
  Upgrade to OpenStack Ussuri (using Juju charms)
  Networking to instances will be lost

  == Regression Potential ==

  Medium - the fix is purely in package and ensures that the
  neutron-*-cleanup scripts are not started on install or restarted
  during an upgrade.

  == Original Bug Report ==
  Release: Focal/Bionic+Ussuri:

  As part of the package upgrade for neutron-openvswitch-agent, the
  neutron-ovs-cleanup systemd unit is restarted.

  This unit should only be run on reboot, and not during package
  upgrades.

  It has the side effect of removing all ports from the local OVS
  bridge, impacting networking to services.

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