I wrote a toy kubernetes CSI driver recently and found it quite pleasing to do. Bare minimum means implementing just 3 grpc api calls - An informational one and

I wrote a toy kubernetes CSI driver recently and found it quite pleasing to do. Bare minimum means implementing just 3 grpc api calls - An informational one and publish/unpublish. Amazon's EFS or EBS CSI drivers are good examples because they're a pretty small codebase. I don't know exactly how this code interacts with the CSI driver itself, but it appears that it is the logic that ultimately results in the volume manipulation calls the controller makes against the CSI driver. It's nice that the complexity is all here, I was actually pretty surprised how simple the drivers themselves are.