While doing required upgrades, we encountered that we do not see anymore our nodes, and are not do the required upgrades.

Here: https://console.aws.amazon.com/eks/home?region=us-east-1#/clusters/testing-farm

AWS says:

Your current user or role does not have access to Kubernetes objects on this EKS cluster
This may be due to the current user or role not having Kubernetes RBAC permissions to describe cluster resources or not having an entry in the cluster’s auth config map.
Learn more

Learn more leads to:
https://docs.aws.amazon.com/eks/latest/userguide/troubleshooting_iam.html#security-iam-troubleshoot-cannot-view-nodes-or-workloads

Seems we are missing now some actions, like:

{ "Version": "2012-10-17", "Statement": [ { "Effect": "Allow", "Action": [ "eks:DescribeNodegroup", "eks:ListNodegroups", "eks:AccessKubernetesApi" ], "Resource": "*" } ] }

Not sure what changed ...

CC @mobrien