Comment 20 for bug 1873091

Verified focal-ussuri with the following output:

# apt-cache policy neutron-common
neutron-common:
  Installed: 2:16.4.2-0ubuntu5
  Candidate: 2:16.4.2-0ubuntu5
  Version table:
 *** 2:16.4.2-0ubuntu5 500
        500 http://archive.ubuntu.com/ubuntu focal-proposed/main amd64 Packages
        100 /var/lib/dpkg/status
     2:16.4.2-0ubuntu4 500
        500 http://nova.clouds.archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages
     2:16.0.0~b3~git2020041516.5f42488a9a-0ubuntu2 500
        500 http://nova.clouds.archive.ubuntu.com/ubuntu focal/main amd64 Packages

$ juju config neutron-api dns-domain
lp1873091-f-u.stsstack.qa.1ss.
$ openstack network show private -c dns_domain -f value
test.dom1.
$ openstack port show 6c95020a-562c-45e3-93bf-99d15b3e3078 -c dns_assignment -f value
[{'ip_address': '192.168.21.192', 'hostname': 'jammy-152742', 'fqdn': 'jammy-152742.test.dom1.'}]
$ ovn-nbctl list dns
_uuid : 8f69c640-02ad-41ac-919c-61cc09ba8707
external_ids : {ls_name=neutron-dcd3ac3e-ccac-4d0b-b0f0-b593bfc58ce3}
records : {"192.21.168.192.in-addr.arpa"=jammy-152742.test.dom1, jammy-152742="192.168.21.192", jammy-152742.test.dom1="192.168.21.192"}
$ openstack recordset list 49b02873-0483-47be-b7ff-4d287985b262
+--------------------------------------+-------------------------+------+----------------------------------------------------------------------------------------+--------+--------+
| id | name | type | records | status | action |
+--------------------------------------+-------------------------+------+----------------------------------------------------------------------------------------+--------+--------+
| 5111db22-76f5-4f2c-b8ca-ff8d6e6ff392 | test.dom1. | NS | ns1.lp1873091-f-u.stsstack.qa.1ss. | ACTIVE | NONE |
| 801f099f-1cf1-444d-add5-ae41621bb0d0 | test.dom1. | SOA | ns1.lp1873091-f-u.stsstack.qa.1ss. dnsmaster.test.dom1. 1673625870 3532 600 86400 3600 | ACTIVE | NONE |
| 5b313955-f650-4a98-ac42-963f54ba5bb8 | jammy-152742.test.dom1. | A | 192.168.21.192 | ACTIVE | NONE |
+--------------------------------------+-------------------------+------+----------------------------------------------------------------------------------------+--------+--------+