fix

common/outputs.kms.tf

@@ -2,17 +2,17 @@
 # key
 #---
 output "kms_key_id" {
-  description = "Created KMS Key ID"
+  description = "KMS Key ID. This is the created key id or the key id of kms_key_arn"
   value       = var.kms_key_arn == null ? aws_kms_key.key[0].id : data.aws_kms_key.incoming_key[0].id
 }
 
 output "kms_key_arn" {
-  description = "Created KMS Key ARN"
+  description = "KMS Key ARN. This is the created key ARN or the key ARN of kms_key_arn"
   value       = var.kms_key_arn == null ? aws_kms_key.key[0].arn : data.aws_kms_key.incoming_key[0].arn
 }
 
 output "kms_key_alias" {
-  description = "Created KMS Key Alias name"
-  value       = var.kms_key_arn == null ? aws_kms_alias.key[0].name : data.aws_kms_key.incoming_key[0].name
+  description = "KMS Key Alias name.  If a kms_key_arn passed in, this will be null."
+  value       = var.kms_key_arn == null ? aws_kms_alias.key[0].name : null
 }