refactor: Refactoring to match the rest of terraform-aws-modules (#1583)

examples/complete/outputs.tf

@@ -0,0 +1,29 @@
+output "region" {
+  description = "AWS region."
+  value       = local.region
+}
+
+output "cluster_endpoint" {
+  description = "Endpoint for EKS control plane."
+  value       = module.eks.cluster_endpoint
+}
+
+output "cluster_security_group_id" {
+  description = "Security group ids attached to the cluster control plane."
+  value       = module.eks.cluster_security_group_id
+}
+
+output "kubectl_config" {
+  description = "kubectl config as generated by the module."
+  value       = module.eks.kubeconfig
+}
+
+output "config_map_aws_auth" {
+  description = "A kubernetes configuration to authenticate to this EKS cluster."
+  value       = module.eks.config_map_aws_auth
+}
+
+output "node_groups" {
+  description = "Outputs from node groups"
+  value       = module.eks.node_groups
+}