Summary

The serverless test suite is currently run directly against Atlas proxies, as this allows drivers to run certain test against a single proxy if required (e.g. if a failpoint needs to be tripped) and target failpoints to individual proxies (e.g. for the mongos pinning tests). However, in the near future the proxies will be moving behind a load balancer, which makes both of these impossible.

The existing load balancer tests avoid this issue by spinning up two different load balancers, one that fronts a single mongos and one that fronts multiple, and conditionally uses each as necessary. We could consider doing something similar for serverless, though it would require changes Atlas side.

Motivation
Without a solution to this problem, drivers testing of serverless will be limited.

Does this ticket have a required timeline? What is it?
All serverless instances will be moving behind load balancers in ~1 month.

Is this ticket only for tests?

Yes