Comment 13 for bug 1856281

Hmm, I just checked the container and it has no strace which complicates things a bit. You would have to rebuild this image to include strace. Then it's a matter of substituting in rabbitmq.json.j2:
  "command": "/usr/sbin/rabbitmq-server",
with:
  "command": "/usr/bin/strace -f /usr/sbin/rabbitmq-server",
in your local kolla-ansible installation and rerunning deploy.
Then the container logs would be richer in traces.

For rebuilding images you need kolla [0] and a docker local registry configured for kolla-ansible [1].

0: https://docs.openstack.org/kolla/latest/admin/image-building.html
1: https://docs.openstack.org/kolla-ansible/latest/user/multinode.html#deploy-a-registry