terraform-provider-google/examples/endpoints-on-compute-engine/variables.tf

variable "region" {
  default = "us-central1"
}

variable "region_zone" {
  default = "us-central1-f"
}

variable "org_id" {
  description = "The ID of the Google Cloud Organization."
}

variable "billing_account_id" {
  description = "The ID of the associated billing account (optional)."
}

variable "credentials_file_path" {
  description = "Location of the credentials to use."
  default     = "~/.gcloud/Terraform.json"
}