Comment 29 for bug 1939723

I have tested the cloud archive packages successfully using bionic-ussuri. Detailed testing details uploaded to the LP bug.

root@juju-971eb3-bionicneutronfix-4:~# apt-cache policy neutron-server neutron-plugin-ml2
neutron-server:
  Installed: 2:16.4.2-0ubuntu6.3~cloud0
  Candidate: 2:16.4.2-0ubuntu6.3~cloud0
  Version table:
 *** 2:16.4.2-0ubuntu6.3~cloud0 500
        500 http://ubuntu-cloud.archive.canonical.com/ubuntu bionic-proposed/ussuri/main amd64 Packages
        100 /var/lib/dpkg/status
     2:16.4.2-0ubuntu6.1~cloud0 500
        500 http://ubuntu-cloud.archive.canonical.com/ubuntu bionic-updates/ussuri/main amd64 Packages
     2:12.1.1-0ubuntu8.1 500
        500 http://nova.clouds.archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages
        500 http://security.ubuntu.com/ubuntu bionic-security/main amd64 Packages
     2:12.0.1-0ubuntu1 500
        500 http://nova.clouds.archive.ubuntu.com/ubuntu bionic/main amd64 Packages
neutron-plugin-ml2:
  Installed: 2:16.4.2-0ubuntu6.3~cloud0
  Candidate: 2:16.4.2-0ubuntu6.3~cloud0
  Version table:
 *** 2:16.4.2-0ubuntu6.3~cloud0 500
        500 http://ubuntu-cloud.archive.canonical.com/ubuntu bionic-proposed/ussuri/main amd64 Packages
        100 /var/lib/dpkg/status
     2:16.4.2-0ubuntu6.1~cloud0 500
        500 http://ubuntu-cloud.archive.canonical.com/ubuntu bionic-updates/ussuri/main amd64 Packages
     2:12.1.1-0ubuntu8.1 500
        500 http://nova.clouds.archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages
        500 http://security.ubuntu.com/ubuntu bionic-security/main amd64 Packages
     2:12.0.1-0ubuntu1 500
        500 http://nova.clouds.archive.ubuntu.com/ubuntu bionic/main amd64 Packages

After the repair,

ubuntu@nkshirsagar-bastion:~/stsstack-bundles/openstack$ juju ssh ovn-central/2 sudo -s
root@juju-971eb3-bionicneutronfix-9:~# ovn-nbctl --no-leader-only list port_group neutron_pg_drop
_uuid : 1e69b7d7-7cc0-4322-9b4a-bdcd6d48facb
acls : [1ed4c1bc-f01c-4e1c-a9a1-089aa9b3f76f, 3869948c-ecc5-43b0-9cea-8499444bdcbe]
external_ids : {}
name : neutron_pg_drop
ports : []
root@juju-971eb3-bionicneutronfix-9:~# ovn-nbctl --no-leader-only lsp-list neutron-d9ce9deb-9d77-4369-b47f-c279790c348a
ec57bd37-9bf3-4d8d-8c63-0a1896ee0652 (10898fe3-39bf-49a6-a680-13ef376b7ee1)
a2c378c2-c523-493b-8ef0-4a2ea45052f2 (4b23642d-33aa-4af0-b940-6fbd13584c70)
fbdf43de-d22c-498f-a1ca-8438a8724c70 (e1cd77da-f905-48fc-83f7-907b7e25a819)
root@juju-971eb3-bionicneutronfix-9:~#