Move serverless and tenant into better structure

cloud/aws/rds/serverless/inputs.tf

@@ -73,7 +73,14 @@ variable "engine_version" {
   }
 }
 locals {
-  engine_version = var.engine_version != null ? var.engine_version : "8.0"
+  engine_version = (
+    local.is_mysql
+    ? (var.engine_version != null ? element(local.supported_mysql, length(local.supported_mysql)-1) : false)
+    : (local.is_postgres
+      ? (var.engine_version != null ? element(local.supported_postgres, length(local.supported_postgres)-1) : false)
+      : false
+    )
+  )
 }
 
 variable "scaling" {

cloud/aws/rds/serverless/rds.tf

@@ -1,12 +1,8 @@
 data "aws_rds_engine_version" "latest" {
   for_each = toset([var.engine_version])
   engine   = var.engine
-  version  = var.engine_version
+  version  = local.engine_version
   latest   = true
-  filter {
-    name   = "engine-version"
-    values = [var.engine_version]
-  }
   filter {
     name   = "engine-mode"
     values = ["provisioned"]

cloud/aws/rds/serverless/tenants.tf

@@ -1,7 +1,7 @@
 module "tenants" {
   depends_on     = [aws_rds_cluster.cluster, aws_rds_cluster_instance.instance]
   for_each       = var.tenants
-  source         = "./tenant"
+  source         = "../tenant"
   username       = each.value.username
   database       = each.value.database
   vpc_id         = data.aws_vpc.current.id