variable "region" {
  default     = "us-central"
  description = "The region where the Linode will be located."
  type        = string

  validation {
    condition     = can(regex("^[a-z]{2}-[a-z]+(-[a-z]+)?$", var.region))
    error_message = "The region must be a valid Linode region format (e.g., us-central, ap-south)."
  }
}