The official documentation for this course is hosted for FREE at https://sbcode.net/grafana. I have written it specifically to be used by the students of this course.
In this course all my examples are executed on an unrestricted Ubuntu 18. You can get minimal Ubuntu 18 server from cloud providers.
In this course I used Digital Ocean, with this link Digital Ocean, you will normally get $50 credit for 30 days, occasionally the offer changes, but can create and delete as many VMs as you wish during the initial offer period.