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[Bug 1943631] Re: Neutron with OVN fails to bind port if hostname has dots

 

[Expired for neutron because there has been no activity for 60 days.]

** Changed in: neutron
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1943631

Title:
  Neutron with OVN fails to bind port if hostname has dots

Status in neutron:
  Expired

Bug description:
  If the hostname has dots, as in for example "devstack.localdomain",
  when trying to create an instance, Neutron will fail with "Failed to
  bind port".

  Reproduced with the latest DevStack from master on top of Ubuntu
  Server 20.04.3 LTS with latest packages installed. Minimal
  installation, no additional packages installed (only removed
  python3-simplejson and python3-pyasn1-modules due to recent issues
  with those packages[1]).

  I find this weird, because afaik TripleO uses FQDNs, so in theory
  Neutron with OVN should break their CI (although I'm not sure if they
  use OVN or Open vSwitch). I'm still not sure if this is on my end or
  not, but I was able to reproduce this consistently, trying different
  hostnames, trying the most minimal local.conf possible (setting only
  passwords), so I decided to report it as a bug.

  Steps to reproduce:
  1. Set the system's hostname to something with at least one dot
  2. Deploy DevStack
  3. Create instance on any network
  4. Inspect devstack@q-svc.service to see the error

  Expected output:
  Instance is created successfully

  Actual output:
  Instance enters error state and devstack@q-svc.service reports this: https://paste.openstack.org/show/809315/

  Version:
  DevStack from master
  Ubuntu Server 20.04.3 LTS
  OVN mechanism driver

  Environment (local.conf): https://paste.openstack.org/show/809316/

  Perceived severity: low

  [1] https://bugs.launchpad.net/devstack/+bug/1871485

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