diff --git a/variables.tf b/variables.tf
index b301dc8..325f79e 100644
--- a/variables.tf
+++ b/variables.tf
@@ -1,19 +1,21 @@
 
 variable "datacenter" {
-  description = "vSphere data center"
+  description = "vSphere data center (provided via CI/CD secrets as TF_VAR_datacenter)"
   type        = string
+  default     = "WBYC-DC01"
 }
 
 variable "cluster_name" {
-  description = "vSphere Cluster Name"
+  description = "vSphere Cluster Name (provided via CI/CD secrets as TF_VAR_cluster_name)"
   type        = string
+  default     = "wbyc-cluster01"
 }
 
-
 # Environment
 variable "environment" {
-  description = "Environment name can be: dev, tst, acc, uat, prod, shared or tools"
+  description = "Environment name can be: dev, tst, acc, uat, prod, shared or tools (provided via CI/CD secrets as TF_VAR_environment)"
   type        = string
+  default     = "prd"
 }
 
 # Resource Groups