fix: Added cluster_resource_id output. (#27)

Author: jamesiarmes

README.md

@@ -177,11 +177,12 @@ security_group_rules = {
 
 ## Outputs
 
-| Name             | Description                                      | Type     |
-| ---------------- | ------------------------------------------------ | -------- |
-| cluster_endpoint | DNS endpoint to connect to the database cluster. | `string` |
-| cluster_id       | ID of the RDS database cluster.                  | `string` |
-| secret_arn       | ARN of the secret holding database credentials.  | `string` |
+| Name                | Description                                      | Type     |
+| ------------------- | ------------------------------------------------ | -------- |
+| cluster_endpoint    | DNS endpoint to connect to the database cluster. | `string` |
+| cluster_id          | ID of the RDS database cluster.                  | `string` |
+| cluster_resource_id | Resource ID of the RDS database cluster.         | `string` |
+| secret_arn          | ARN of the secret holding database credentials.  | `string` |
 
 [acus]: https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/aurora-serverless-v2.how-it-works.html#aurora-serverless-v2.how-it-works.capacity
 [aurora-serverless]: https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/aurora-serverless-v2.html

outputs.tf

@@ -8,6 +8,11 @@ output "cluster_id" {
   value       = module.database.cluster_id
 }
 
+output "cluster_resource_id" {
+  description = "Resource ID of the RDS database cluster."
+  value       = module.database.cluster_resource_id
+}
+
 output "secret_arn" {
   description = "ARN of the secret containing the user credentials."
   value       = module.database.cluster_master_user_secret[0].secret_arn