Gateway deployment with DCO enabled fails on first run

seen on a OVH machine

fatal: [gateway1]: FAILED! => {"ansible_facts": {"discovered_interpreter_python": "/usr/bin/python3"}, "changed": false, "msg": "modprobe: FATAL: Module ovpn-dco-v2 not found in directory /
lib/modules/6.1.0-28-cloud-amd64\n", "name": "ovpn-dco-v2", "params": "", "rc": 1, "state": "present", "stderr": "modprobe: FATAL: Module ovpn-dco-v2 not found in directory /lib/modules/6.1
.0-28-cloud-amd64\n", "stderr_lines": ["modprobe: FATAL: Module ovpn-dco-v2 not found in directory /lib/modules/6.1.0-28-cloud-amd64"], "stdout": "", "stdout_lines": []}

in fact there are multiple directories in /lib/modules on these ovh machines.

Let's use this issue to track how to manually resolve the problem as well as (in a later step) how to fix it in lilypad.