diff --git a/main.tf b/main.tf
index 9762fa6..1ae8131 100644
--- a/main.tf
+++ b/main.tf
@@ -1,3 +1,12 @@
+variable "eks_cluster_name" {}
+variable "region" {}
+variable "instance_type" {
+  default = "m5.large"
+}
+variable "workers_additional_policies" {
+  default = []
+}
+
 data "aws_availability_zones" "available" {}
 
 module "vpc" {