Containers-roadmap: [EKS] [request]: please use a config file for kube-proxy

[dawidmalina]

Tell us about your request
We should migrate to config file for kube-proxy

Which service(s) is this request for?
EKS

Tell us about the problem you're trying to solve. What are you trying to do, and why is it hard?
There are a deprecated log entries during kube-proxy startup:

W0111 11:35:10.730137       5 server.go:195] WARNING: all flags other than --config, --write-config-to, and --cleanup are deprecated. Please begin using a config file ASAP.

Command line docs: https://kubernetes.io/docs/reference/command-line-tools-reference/kube-proxy/
Config file "docs": https://github.com/kubernetes/kubernetes/blob/master/staging/src/k8s.io/kube-proxy/config/v1alpha1/types.go

[christopherhein]

Thanks for filing this here. Adding the original EKS AMI Issue for tracking as well.

https://github.com/awslabs/amazon-eks-ami/issues/149

[mbarrien]

Note that in my investigation, any EKS clusters created from 1.12 onwards use a config file (by mounting a configmap called kube-proxy-config) for kube-proxy. There is still the issue of migrating any EKS clusters created before 1.12 to using a configmap; this might be possible to do manually.