[EKS] EKS IAM USER 추가

TR;DR 

kubectl edit -n kube-system configmap/aws-auth

 

mapUsers 부분을 알맞게 수정

apiVersion: v1
data:
  mapAccounts: |
    []
  mapRoles: |
    - "groups":
      - "system:masters"
      "rolearn": "arn:aws:iam::xxxxxxx:role/xxxxx"
      "username": "create-eks-role"
  mapUsers: |
    - "groups":
      - "system:masters"
      "userarn": "arn:aws:iam::xxxxx:user/xxxxx"
      "username": "user1"
    - "groups":
      - "system:masters"
      "userarn": "arn:aws:iam::xxxxxx:user/xxxxxxx"
      "username": "user2"
kind: ConfigMap
metadata:
...