[gp cli] gp command to print/show workspace class

[csweichel]

Is your feature request related to a problem? Please describe

We recently added an environment variable which carries the name of the workspace class a workspace is running on.

Describe the behaviour you'd like

Environment variables are not always stable - and we are trying to educate folks to not rely on them. Instead, we should plug this into the supervisor info endpoint, and add a gp command to access it.

[akosyakov]

I think the logical place will be gp top. It should show workspace class, its configuration for CPU and MEMORY, usage, and provide hints to upgrade if necessary.

To consume programatically we can provide an option like gp top --json.

[mustard-mh]

x-posting suggestions of gp top here #12338 (comment) #12338 (review)

Maybe another gp command like gp workspace class is worth built?

cc @filiptronicek @andreafalzetti

Another reason to add class description in gp top is, sometimes the limit of resources in gp top is not align to the workspace's limit but limit in a time window

[akosyakov]

I think we maybe will need to have another command to get different info about workspace, that people can rely on it instead of env var as now. But then it should be rather one command like gp info (workspaceId|instanceId|workspaceClass|...)? I think there is already an issue to deprecate evn var and we could do it as a part later.

[loujaybee]

This is now shipped!

https://www.gitpod.io/changelog#easily-find-information-about-your-workspace-with-gp-info