Comment 1 for bug 1833291

The problem seems to be that only the "nova" part of the neutron.conf config is passed and the auth_section, keystone_authtoken, is outside the [nova] heading.

auth = ks_loading.load_auth_from_conf_options(cfg.CONF, 'nova')

So it errors with a missing section.

We have had this in the nova section since icehouse. It is possible it is no longer necessary but we will have to verify that. I'll discuss with the team.