main.tf

resource "aws_iam_role" "cluster_role" {
  name = "eks-cluster-role"

  assume_role_policy = <<POLICY
{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Principal": {
        "Service": "eks.amazonaws.com"
      },
      "Action": "sts:AssumeRole"
    }
  ]
}
POLICY
}

resource "aws_iam_role_policy_attachment" "AmazonEKSClusterPolicy" {
  policy_arn = "arn:aws:iam::aws:policy/AmazonEKSClusterPolicy"
  role       = aws_iam_role.cluster_role.name
}

resource "aws_iam_role_policy_attachment" "AmazonEKSVPCResourceController" {
  policy_arn = "arn:aws:iam::aws:policy/AmazonEKSVPCResourceController"
  role       = aws_iam_role.cluster_role.name
}

resource "aws_eks_cluster" "cluster1" {
  name     = var.clustername
  version = "1.19"
  role_arn = aws_iam_role.cluster_role.arn
  vpc_config {
    subnet_ids = var.subnet
  }

  depends_on = [
    aws_iam_role_policy_attachment.AmazonEKSClusterPolicy,
    aws_iam_role_policy_attachment.AmazonEKSVPCResourceController,
  ]
}

output "endpoint" {
  value = aws_eks_cluster.cluster1.endpoint
}

output "kubeconfig-certificate-authority-data" {
  value = aws_eks_cluster.cluster1.certificate_authority[0].data
}