diff --git a/terraform/aws/variables.tf b/terraform/aws/variables.tf
new file mode 100644
index 0000000..45340fb
--- /dev/null
+++ b/terraform/aws/variables.tf
@@ -0,0 +1,29 @@
+variable "aws_region" {
+  description = "The AWS region in which resources will be created."
+  type        = string
+}
+
+variable "aws_security_group" {
+  description = "The ID of the security group."
+  type        = string
+}
+
+variable "aws_instance_type" {
+  description = "The type of EC2 instance to create."
+  type        = string
+}
+
+variable "aws_key_pair_name" {
+  description = "The name of the AWS key pair."
+  type        = string
+}
+
+variable "aws_user_data_file_path" {
+  description = "Path to the user data script."
+  type        = string
+}
+
+variable "aws_instance_count" {
+  description = "Number of instances to create."
+  type        = number
+}