terraform-aws-eks/local.tf

locals {
  # More information: https://amazon-eks.s3-us-west-2.amazonaws.com/1.10.3/2018-06-05/amazon-eks-nodegroup.yaml
  config_map_aws_auth = <<CONFIGMAPAWSAUTH
apiVersion: v1
kind: ConfigMap
metadata:
  name: aws-auth
  namespace: kube-system
data:
  mapRoles: |
    - rolearn: ${aws_iam_role.workers.arn}
      username: system:node:{{EC2PrivateDNSName}}
      groups:
        - system:bootstrappers
        - system:nodes
CONFIGMAPAWSAUTH

  kubeconfig = <<KUBECONFIG
apiVersion: v1
clusters:
- cluster:
    server: ${aws_eks_cluster.this.endpoint}
    certificate-authority-data: ${aws_eks_cluster.this.certificate_authority.0.data}
  name: kubernetes
contexts:
- context:
    cluster: kubernetes
    user: aws
  name: aws
current-context: aws
kind: Config
preferences: {}
users:
- name: aws
  user:
    exec:
      apiVersion: client.authentication.k8s.io/v1alpha1
      command: heptio-authenticator-aws
      args:
        - "token"
        - "-i"
        - "${var.cluster_name}"
KUBECONFIG
}