[sdk/nodejs] Account for outstanding async work done in prepareResource (#7704)

CHANGELOG_PENDING.md

@@ -14,4 +14,7 @@
 
 - [sdk/python] - Use `Sequence[T]` instead of `List[T]` for several `Resource`
   parameters.
-  [#7698](https://github.com/pulumi/pulumi/pull/7698)
+  [#7698](https://github.com/pulumi/pulumi/pull/7698)
+
+- [auto/nodejs] - Fix a case where inline programs could exit with outstanding async work.
+  [#7704](https://github.com/pulumi/pulumi/pull/7704)

sdk/nodejs/runtime/resource.ts

@@ -420,6 +420,12 @@ export function registerResource(res: Resource, t: string, name: string, custom:
 async function prepareResource(label: string, res: Resource, custom: boolean, remote: boolean,
                                props: Inputs, opts: ResourceOptions): Promise<ResourceResolverOperation> {
 
+    // add an entry to the rpc queue while we prepare the request.
+    // automation api inline programs that don't have stack exports can exit quickly. If we don't do this,
+    // sometimes they will exit right after `prepareResource` is called as a part of register resource, but before the
+    // .then() that adds to the queue via `runAsyncResourceOp`.
+    const done: () => void = rpcKeepAlive();
+
     // Simply initialize the URN property and get prepared to resolve it later on.
     // Note: a resource urn will always get a value, and thus the output property
     // for it can always run .apply calls.
@@ -563,6 +569,9 @@ async function prepareResource(label: string, res: Resource, custom: boolean, re
         }
     }
 
+    // free the RPC queue
+    done();
+
     return {
         resolveURN: resolveURN,
         resolveID: resolveID,