k8s kubernetes on AWS AWSEKS

Terraform example1 https://www.padok.fr/en/blog/aws-eks-cluster-terraform
Terraform example2 https://github.com/hashicorp/terraform-provider-aws/tree/master/examples/eks-getting-started
- 202012 - worked, only changed region and setup aws credentials.
  - Creates new VPC and 2 subnets for k8s deployment
    - Took 11min for management node to deploy
aws eks --region <region-code> update-kubeconfig --name <cluster_name>

Recover admin login

You need to know the IAM role/user that created the cluster. (Maybe look in your Terraform)

Can you see the cluster (check correct export AWS_PROFILE=)

aws eks list-clusters
# or if installed $ eksctl get cluster

Make sure current role does not work by retrieving kubectl config

aws eks update-kubeconfig --region ap-southeast-2 --name "eks-cluster-name" --role-arn "arn:aws:iam::123456789:role/myk8srole"
kubectl get svc

error: You must be logged in to the server (Unauthorized)
- This error indicates that the role you used, is not in system:management, thus not the one that created the cluster.
AWS doc for Unauthorized or access denied (kubectl)
- https://docs.aws.amazon.com/eks/latest/userguide/troubleshooting.html#unauthorized
Have to assume the original admin account/role
- How to find the admin account / role ?
  1. install eksctl AWStool https://docs.aws.amazon.com/eks/latest/userguide/eksctl.html
  2. retrieve accounts