feat(push): Add Pub/Sub Subscription support for push payload unwrapping (no wrapper)

README.md

@@ -28,6 +28,8 @@ module "pubsub" {
       x-goog-version             = "v1beta1"                                            // optional
       oidc_service_account_email = "[email protected]"                                     // optional
       audience                   = "example"                                            // optional
+      no_wrapper                 = false                                                // optional
+      no_wrapper_write_metadata  = false                                                // optional
       expiration_policy          = "1209600s"                                           // optional
       dead_letter_topic          = "projects/my-pubsub-project/topics/example-dl-topic" // optional
       max_delivery_attempts      = 5                                                    // optional

examples/subscriptions_only/main.tf

@@ -48,6 +48,16 @@ module "pubsub" {
       ack_deadline_seconds = 20
       expiration_policy    = "1209600s" // two weeks
     },
+    {
+      name                 = "push_payload_unwrapping"
+      push_endpoint        = "https://${var.project_id}.appspot.com/"
+      no_wrapper           = no_wrapper.test.name
+      ack_deadline_seconds = 20
+      expiration_policy    = "1209600s" // two weeks
+    },
   ]
+}
 
+resource "no_wrapper" "test" {
+  write_metadata = true
 }

main.tf

@@ -226,6 +226,13 @@ resource "google_pubsub_subscription" "push_subscriptions" {
         audience              = lookup(each.value, "audience", "")
       }
     }
+
+    dynamic "no_wrapper" {
+      for_each = (lookup(each.value, "write_metadata", "") != "") ? [each.value.write_metadata] : []
+      content {
+        write_metadata = lookup(each.value, "write_metadata", null)
+      }
+    }
   }
   depends_on = [
     google_pubsub_topic.topic,