Comment 2 for bug 1947959

We're upgrading from wallaby to master (no xena release) and hence it's failing as Nova services only support computes that are not older than the previous major release[1]

I see nova compute service using wallaby container.

0b16653b4db1 trunk.registry.rdoproject.org/tripleowallaby/openstack-nova-compute:314a674e003a6c38e9de5bd6ac589ac9 kolla_start 44 minutes ago Up 44 minutes ago nova_compute

[1] https://opendev.org/openstack/nova/commit/aa7c6f87699ec1340bd446a7d47e1453847a637f

We probably need a better approach for upgrade.