Invoke this module from the root main.tf
file.
module "dbserver" {
source = "../modules/terraform-linode-module-dbserver"
public_key_path = var.public_key_path
root_password = var.root_password
region = var.LN_REGION
group = var.linode_db_instance_group
image = var.linode_db_instance_image
instance_type = var.linode_db_instance_type
node_count = var.linode_db_instance_node_count
tags = var.linode_db_instance_tags
SITE = var.SITE
ID = var.ID
DOMAIN = var.DOMAIN
}