feat(dns): add variable for dns zone name

Author: nlevee

modules/composer_net/dns.tf

@@ -16,14 +16,8 @@
 composer.cloud.google.com
 ***************************************/
 
-resource "random_string" "composer_cloud_zone" {
-  length  = 4
-  special = false
-  upper   = false
-}
-
 resource "google_dns_managed_zone" "composer_cloud_zone" {
-  name        = "composer-google-cloud-dns-${random_string.composer_cloud_zone.id}"
+  name        = var.dns_zone_name
   project     = var.network_project_id
   dns_name    = "composer.cloud.google.com."
   description = "composer.cloud.google.com zone"

modules/composer_net/variables.tf

@@ -71,3 +71,9 @@ variable "composer_env_name" {
   description = "Name of Cloud Composer Environment"
   type        = string
 }
+
+variable "dns_zone_name" {
+  description = "Composer DNS private zone name"
+  type        = string
+  default     = "composer-google-cloud-dns"
+}