Optimize service port definition

service/outputs.tf

@@ -1,11 +1,15 @@
 output "name" {
   value = local.app_slug
 }
-output "default_definition" {
-  value = {
-    "name" = "${local.app_slug}"
-    "port" = {
-      "number" = var.ports[0]
+output "ingress_backend_exposure" {
+  value = [for port_map in var.port_mapper :
+    {
+      "service" = {
+        "name" = "${local.app_slug}"
+        "port" = {
+          "name" = port_map.name
+        }
+      }
     }
-  }
+  ]
 }