Openshift Redhat Single Node setup.. Noob question...

Hello please see the attached Youtube on how to install Redhat Single Node Openshift and jump to 4:21. At 4:23 he copies the SSH key but he doesn't explain where it comes from.

https://www.youtube.com/watch?v=QFf0yVAHQKc&t=264s

I understand what the ssh key is for but since I'm new to this and I'm trying to follow the video step by step, I want to be sure I"m doing this correctly. So I'm guessing that this ssh key is from whatever client machine I will be doing troubleshooting from?
So for clarity, I have a Windows workstation and I am using the out of band managment (IDRAC, ILO, IMM, etc.) to access the server that I will be installing Openshift on. Am I supposed to be generating the ssh key from my WIndows workstation and then pasting that in the location he has in the video? Thanks!