Context in weaveworks/eksctl#3231 (review)

PR o'clock

Description

Resolves #774

The change is intended to improve the ability to manage worker groups using maps. Which should allow to more flexibly add/remove worker groups (improve this: https://github.com/terraform-aws-modules/terraform-aws-eks/blob/master/docs/faq.md#how-do-i-safely-remove-old-worker-groups).

The change includes suggested in #774 changes which include:

At first, I think this property mean that all Pod has been drained or whether or not pod should be drained. But this is something to told that an event has been processed or not. I think we should rename this to something like InterruptionEvent.Processed or InterruptionEvent.Done. What do you think about this?

Some log entries are using V(1) but still get emitted by default.
We should have a way to mute debug logs using a flag.

There should be a way to get a kubeconfig for eks clusters that already exist.

Similar to this PR for GCP: https://gist.github.com/geekflyer/b78adab2667d8526a1dd593bc5c844bf#file-gke-ts-L33-L66