text: data "aws_ami" "eks_worker" {
    filter {
      name   = "name"
      values = ["amazon-eks-node-${var.eks.cluster_version}-${var.worker_ami_name_filter}"]
    }
  
    most_recent = true
  
    # Owner ID of AWS EKS team
    owners = ["602401143452"]
  }
  
  data "template_file" "userdata" {
    template = file("${path.module}/templates/userdata.sh.tpl")
    count    = length(local.tidb_cluster_worker_groups)
  
    vars = {
      cluster_name        = var.eks.cluster_id
      endpoint            = var.eks.cluster_endpoint
      cluster_auth_base64 = var.eks.cluster_certificate_authority_data
      pre_userdata = lookup(
        local.tidb_cluster_worker_groups[count.index],
        "pre_userdata",
        local.workers_group_defaults["pre_userdata"],
      )
      additional_userdata = lookup(
        local.tidb_cluster_worker_groups[count.index],
        "additional_userdata",
        local.workers_group_defaults["additional_userdata"],
      )
      bootstrap_extra_args = lookup(
        local.tidb_cluster_worker_groups[count.index],
        "bootstrap_extra_args",
        local.workers_group_defaults["bootstrap_extra_args"],
      )
      kubelet_extra_args = lookup(
        local.tidb_cluster_worker_groups[count.index],
        "kubelet_extra_args",
        local.workers_group_defaults["kubelet_extra_args"],
      )
    }
  }
  
  data "template_file" "launch_template_userdata" {
    template = file("${path.module}/templates/userdata.sh.tpl")
    count    = var.worker_group_launch_template_count
  
    vars = {
      cluster_name        = var.eks.cluster_name
      endpoint            = var.eks.cluster_endpoint
      cluster_auth_base64 = var.eks.cluster_certificate_authority_data
      pre_userdata = lookup(
        var.worker_groups_launch_template[count.index],
        "pre_userdata",
        local.workers_group_launch_template_defaults["pre_userdata"],
      )
      additional_userdata = lookup(
        var.worker_groups_launch_template[count.index],
        "additional_userdata",
        local.workers_group_launch_template_defaults["additional_userdata"],
      )
      bootstrap_extra_args = lookup(
        var.worker_groups_launch_template[count.index],
        "bootstrap_extra_args",
        local.workers_group_launch_template_defaults["bootstrap_extra_args"],
      )
      kubelet_extra_args = lookup(
        var.worker_groups_launch_template[count.index],
        "kubelet_extra_args",
        local.workers_group_launch_template_defaults["kubelet_extra_args"],
      )
    }
  }
  