There are a lot of server monitoring softwares out there, but Netdata gives you just about every metric I'd ever want to look at. Can be deployed using Docker (https://learn.netdata.cloud/docs/netdata-agent/installation/docker).
The one thing I do when linking to Netdata in whatever dashboard you are running, I use the v3 switch at the end of the url thusly:
https://netdata.mycoolserver.com/v3
That way you don't have to log in to the mother ship to view your metrics.
ETA: mobile app available