Hi Jason, great and very useful tutorial. I worked through it and everything is running except I get an timezone error.
I double check the php.ini file and changed to Europe/Berlin same as in the mariadb container, but still the same error.
can you help?
Servus
Ralf
Hi Ralf and welcome to the forum 
Could you post your MariaDB and LibreNMS docker run command? (You can mask out your passwords, IP etc)
And , which container is returning the “correct” time?
I restarted the librenms container and now the error disapeared - maybe a typo.
Nevertheless thank you for your quick response 
That’s weird, but glad it worked out!! 