[Bug 1758411] Please test proposed package

[Corey Bryant]

Hello Corey, or anyone else affected,

Accepted neutron into ocata-proposed. The package will build now and be
available in the Ubuntu Cloud Archive in a few hours, and then in the
-proposed repository.

Please help us by testing this new package. To enable the -proposed
repository:

  sudo add-apt-repository cloud-archive:ocata-proposed
  sudo apt-get update

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, and change the tag
from verification-ocata-needed to verification-ocata-done. If it does
not fix the bug for you, please add a comment stating that, and change
the tag to verification-ocata-failed. In either case, details of your
testing will help us make a better decision.

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

** Changed in: cloud-archive/ocata
       Status: Triaged => Fix Committed

** Tags added: verification-ocata-needed

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https://bugs.launchpad.net/bugs/1758411

Title:
  [SRU] Revert fix for bug 1752838 regression

Status in Ubuntu Cloud Archive:
  Fix Committed
Status in Ubuntu Cloud Archive mitaka series:
  Triaged
Status in Ubuntu Cloud Archive newton series:
  Fix Committed
Status in Ubuntu Cloud Archive ocata series:
  Fix Committed
Status in Ubuntu Cloud Archive pike series:
  Triaged
Status in Ubuntu Cloud Archive queens series:
  Fix Committed
Status in neutron package in Ubuntu:
  Triaged
Status in neutron source package in Xenial:
  Triaged
Status in neutron source package in Artful:
  Triaged
Status in neutron source package in Bionic:
  Triaged

Bug description:
  [Impact]

  The fix for the following bug was found to cause a regression/race
  with neutron-ovs-cleanup and neutron-openvswitch-agent where
  ports/flows get deleted and do not get restored.

  https://bugs.launchpad.net/ubuntu/+source/neutron/+bug/1752838

  [Test Case]
  * Deploy OpenStack Mitaka with one compute, one gateway and gre overlay
  * Create instance on gre overlay network
  * Add FIP to instance
  * Start a ping to FIP
  * juju ssh nova-compute/0
  * Check 'ovs-ofctl dump-flows br-tun' and observe table=20 egress flows for qdhcp and qrouter
  * systemctl restart openvswitch-switch
  * Check that flows re-added to br-tun (this takes a few seconds for neutron-openvswitch-agent to re-add them)
  * Check that ping still running

  [Regression Potential]

  There should be none as long as the code is reverted to what it was
  before the SRU for 1752838.

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