[Bug 2072154] Re: Port status goes BUILD when migrating non-sriov instance in sriov setting.

[Seyeong Kim]

I verified zed

root at node-05:/home/ubuntu# dpkg -l | grep neutron                                                                                                                                   
ii  neutron-common                         2:21.2.0-0ubuntu1~cloud1                             all          Neutron is a virtual network service for Openstack - common            
ii  neutron-ovn-metadata-agent             2:21.2.0-0ubuntu1~cloud1                             all          Neutron is a virtual network service for Openstack - OVN metadata agent
ii  neutron-sriov-agent                    2:21.2.0-0ubuntu1~cloud1                             all          Neutron is a virtual network service for Openstack - SR-IOV agent      
ii  python3-neutron                        2:21.2.0-0ubuntu1~cloud1                             all          Neutron is a virtual network service for Openstack - Python library    

** Tags removed: verification-zed-needed
** Tags added: verification-zed-done

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https://bugs.launchpad.net/bugs/2072154

Title:
  Port status goes BUILD when migrating non-sriov instance in sriov
  setting.

Status in Ubuntu Cloud Archive:
  Fix Released
Status in Ubuntu Cloud Archive antelope series:
  Fix Committed
Status in Ubuntu Cloud Archive bobcat series:
  Fix Committed
Status in Ubuntu Cloud Archive caracal series:
  Fix Committed
Status in Ubuntu Cloud Archive dalmation series:
  Fix Released
Status in Ubuntu Cloud Archive epoxy series:
  Fix Released
Status in Ubuntu Cloud Archive yoga series:
  Fix Committed
Status in Ubuntu Cloud Archive zed series:
  Fix Committed
Status in neutron:
  Fix Released
Status in neutron package in Ubuntu:
  Fix Released
Status in neutron source package in Jammy:
  Fix Released
Status in neutron source package in Noble:
  Fix Released
Status in neutron source package in Oracular:
  Fix Released

Bug description:
  [ Impact ]

  Port status goes BUILD when migrating non-sriov instance in sriov
  setting.

  [ Test Plan ]

  1. Deploy OpenStack using Juju & Charms ( upstream also has the same code )
  2. Enable SRIOV
  3. create a vm without sriov nic. (test)
  4. migrate it to another host
  - openstack server migrate --live-migration --os-compute-api-version 2.30 --host node-04.maas test
  5. check port status
  - https://paste.ubuntu.com/p/RKGnP76MvB/

  [ Where problems could occur ]

  this patch is related to sriov agent. it adds checking if port is
  sriov or not. so it could be possible that sriov port can be handled
  inproperly.

  [ Other Info ]

  nova-compute has neutron-sriov-nic-agent and neutron-ovn-metadata-
  agent

  So far, I've checked that

  ovn_monitor change it to ACTIVE but sriov-nic-agent change it back to
  BUILD by calling _get_new_status

  ./plugins/ml2/drivers/mech_sriov/agent/sriov_nic_agent.py
  binding_activate
  - get_device_details_from_port_id
  - get_device_details
  - _get_new_status < this makes status BUILD.

  so as running order is not fixed, sometimes it goes ACTIVE, sometimes
  BUILD.

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