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Hello! We talked about Kubernetes’ overall architecture a while back.
This week I learned a few more things about how the Kubernetes scheduler works so I wanted to share! This kind of gets into the weeds of how the scheduler works exactly.
It’s also an illustration of how to go from “how is this system even designed I don’t know anything about it?” to “okay I think I understand the basic design decisions here and why they were made” without actually.. asking anyone (because I don’t know any kubernetes contributors really, certainly not well enough to be like PLEASE EXPLAIN THE SCHEDULER TO ME THANKS).
This is a little stream of consciousness but hopefully it will be useful to someone anyway. The best most useful link I found while researching this was this Writing Controllers document from the amazing amazing amazing kubernetes developer documentation folder.