Tenants won't be able to do this, but admins can ssh to the octavia amphora using the octavia ssh key over the amphora network to check logs.

One thing tenants can do is enable the prometheus exporter for their LB and scrape it using prometheus:
https://docs.openstack.org/octavia/latest/user/guides/monitoring.html#monitoring-with-prometheus

From: Nguyễn Hữu Khôi <nguyenhuukhoinw@gmail.com>
Sent: 08 May 2024 23:32
To: OpenStack Discuss <openstack-discuss@lists.openstack.org>
Subject: [openstack][octavia] How users can debug their LB

CAUTION: This email originates from outside THG

Hello.

I would like to know how users can debug their LB. For example, How can they check logs(HA proxy connection log) in their LB?

Thank you.

Nguyen Huu Khoi