If you want to validate your installation from the CLI, type the following command :
$ docker-compose exec --user librenms librenms php validate.php
====================================
Component | Version
--------- | -------
LibreNMS | 1.58
DB Schema | 2019_10_03_211702_serialize_config (147)
PHP | 7.3.11
MySQL | 10.4.8-MariaDB-1:10.4.8+maria~bionic
RRDTool | 1.7.2
SNMP | NET-SNMP 5.8
====================================
[OK] Installed from the official Docker image; no Composer required
[OK] Database connection successful
[OK] Database schema correct
[WARN] You have not added any devices yet.
[FIX] You can add a device in the webui or with ./addhost.php
[WARN] IPv6 is disabled on your server, you will not be able to add IPv6 devices.
[WARN] Updates are managed through the official Docker image