Where are Grafana logs?

I get the message “query failed - please inspect Grafana server log for details” when trying to connect to MySQL database (that’s been working fine), but I can’t find where those logs are or how to access them??

Found them:

You have to use a docker command, rather than looking on the drive.

$ sudo docker logs *DockerContainerID*

I used a tail -f command to catch the error.