resource "aws_eks_cluster" "main" {
  name     = var.cluster_name
  role_arn = aws_iam_role.eks_cluster.arn

  vpc_config {
    subnet_ids = concat(aws_subnet.public[*].id, aws_subnet.private[*].id)
  }

  depends_on = [
    aws_iam_role_policy_attachment.eks_cluster_policy,
  ]
}

resource "aws_eks_node_group" "main" {
  cluster_name    = aws_eks_cluster.main.name
  node_group_name = "main-node-group"
  node_role_arn   = aws_iam_role.eks_nodes.arn
  subnet_ids      = aws_subnet.private[*].id

  scaling_config {
    desired_size = 2
    max_size     = 3
    min_size     = 1
  }

  instance_types = ["t3.medium"]

  depends_on = [
    aws_iam_role_policy_attachment.eks_worker_node_policy,
    aws_iam_role_policy_attachment.eks_cni_policy,
    aws_iam_role_policy_attachment.ec2_container_registry_read_only,
  ]
}