Use kubernetes/code-generator to generate clients

[tamalsaha]

https://medium.com/@mtreacher/writing-a-kubernetes-operator-a9b86f19bfb9

Workqueue example: https://github.com/kubernetes/client-go/tree/master/examples/workqueue https://github.com/kubernetes/community/blob/master/contributors/devel/controllers.md

Code Generator: https://blog.openshift.com/kubernetes-deep-dive-code-generation-customresources/

https://engineering.bitnami.com/articles/a-deep-dive-into-kubernetes-controllers.html https://engineering.bitnami.com/articles/kubewatch-an-example-of-kubernetes-custom-controller.html

• https://www.youtube.com/watch?v=PYLFZVv68lM

CRD:

• https://kubernetes.io/docs/concepts/api-extension/custom-resources/

• https://kubernetes.io/docs/tasks/access-kubernetes-api/extend-api-custom-resource-definitions/

  Video: https://skillsmatter.com/skillscasts/10599-wrangling-kubernetes-api-internals https://github.com/munnerz/k8s-api-pager-demo/blob/master/Makefile https://github.com/kubernetes/code-generator

[tamalsaha]

• We get proto. So can generate other lang clients
• Open api docs. We can also get validators using the open api spec. https://github.com/garethr/kubeval
• Conversions: go from v1alpha1 to v1beta1. Api server can do the conversions for us.
• We can delete all the hand written copy/pasted client etc. We just write the types.go and any conversion that can't be auto generated

[tamalsaha]

I have working pr for appscode/stash https://github.com/appscode/stash/pull/163

We just need to copy the process here.

[tamalsaha]

Use docker image to run generator https://github.com/tamalsaha/gengo-builder

[tamalsaha]

From horse's mouth: https://twitter.com/the1stein/status/906232016626225153