variable "project_id" { description = "The project ID to deploy the resources to." type = string } variable "region" { description = "The region to deploy the resources to." type = string } variable "customer_id" { description = "The customer ID for billing and labeling." type = string default = "osvauco" } variable "alert_email" { description = "The email address for billing alerts." type = string default = "billing-alerts@example.com" } variable "billing_account_id" { description = "The billing account ID to associate with the project." type = string }