set static region/zone

variables.tf

@@ -6,9 +6,12 @@ variable "project_id" {
 variable "region" {
   type        = string
   description = "The region to deploy resources into"
+  default = "us-central1"
 }
 
+
 variable "zone" {
   type        = string
   description = "The zone in which resource to be deployed"
+  default = "us-central1-f"
 }