Readme and example updates.

examples/basic/main.tf

@@ -24,17 +24,19 @@ provider "template" {
 }
 
 data "aws_eks_cluster" "cluster" {
-  name = module.eks.cluster_id
+  count = var.create_eks ? 1 : 0
+  name  = module.eks.cluster_id
 }
 
 data "aws_eks_cluster_auth" "cluster" {
-  name = module.eks.cluster_id
+  count = var.create_eks ? 1 : 0
+  name  = module.eks.cluster_id
 }
 
 provider "kubernetes" {
-  host                   = data.aws_eks_cluster.cluster.endpoint
-  cluster_ca_certificate = base64decode(data.aws_eks_cluster.cluster.certificate_authority.0.data)
-  token                  = data.aws_eks_cluster_auth.cluster.token
+  host                   = element(concat(data.aws_eks_cluster.cluster[*].endpoint, list("")), 0)
+  cluster_ca_certificate = base64decode(element(concat(data.aws_eks_cluster.cluster[*].certificate_authority.0.data, list("")), 0))
+  token                  = element(concat(data.aws_eks_cluster_auth.cluster[*].token, list("")), 0)
   load_config_file       = false
   version                = "~> 1.10"
 }
@@ -128,6 +130,7 @@ module "vpc" {
 
 module "eks" {
   source       = "../.."
+  create_eks   = var.create_eks
   cluster_name = local.cluster_name
   subnets      = module.vpc.private_subnets
 

examples/basic/variables.tf

@@ -2,6 +2,11 @@ variable "region" {
   default = "us-west-2"
 }
 
+variable "create_eks" {
+  default     = true
+  description = "Set to false to skip creating EKS cluster."
+}
+
 variable "map_accounts" {
   description = "Additional AWS account numbers to add to the aws-auth configmap."
   type        = list(string)