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# INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
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provider "helm" {
  kubernetes {
    host                   = var.cluster_endpoint
    cluster_ca_certificate = base64decode(var.cluster_certificate_authority_data)

    exec {
      api_version = "client.authentication.k8s.io/v1beta1"
      command     = "aws"
      args        = ["eks", "get-token", "--cluster-name", var.cluster_name]
    }
  }
}


resource "kubernetes_namespace" "cluster_autoscaler" {
  count = (var.enabled && var.create_namespace && var.namespace != "kube-system") ? 1 : 0

  metadata {
    name = var.namespace
  }
}

resource "helm_release" "cluster_autoscaler" {
  count = var.enabled ? 1 : 0

  name       = "cluster-autoscaler"
  chart      = "cluster-autoscaler"
  repository = "https://kubernetes.github.io/autoscaler"
  version    = "9.25.0"
  namespace  = var.namespace

  set {
    name  = "fullnameOverride"
    value = "aws-cluster-autoscaler"
  }

  set {
    name  = "autoDiscovery.clusterName"
    value = var.cluster_name
  }

  set {
    name  = "awsRegion"
    value = var.aws_region
  }

  set {
    name  = "rbac.serviceAccount.name"
    value = "cluster-autoscaler"
  }

  set {
    name  = "rbac.serviceAccount.annotations.eks\\.amazonaws\\.com/role-arn"
    value = aws_iam_role.kubernetes_cluster_autoscaler[0].arn
  }

  values = [
    yamlencode(var.settings)
  ]

}