Centralized configuration (agent.conf) for WAZUH

[jkchiefgmailcom]

Dear community,

I`m trying to configure centralized configuration file for WAZUH as in:
https://documentation.wazuh.com/current/user-manual/reference/centralized-configuration.html?highlight=agent.conf

I have a standalone SO Version: 2.3.140, Wazuh Agents (3.13.1-1)

As I understand, there must be some agent.conf file to modify, that later should be synced with so-wazuh docker container.

I tried to modify all these files that I found:

/var/ossec/etc/shared/agent.conf
/nsm/wazuh/etc/shared/default/agent.conf
/nsm/wazuh/etc/shared/default/agent.conf

Then I rebooted the whole SO server, but agent.conf in docker seems untouched:

[root@securityonion etc]# docker exec -it so-wazuh cat  /var/ossec/etc/shared/agent.conf
<agent_config>

  <!-- Shared agent configuration here -->

</agent_config>

Please advise how to properly edit agent.conf for wazuh centralized configuration