I have just encountered the same problem. I'm not sure there is a way to do this that doesn't involve hacking ActiveStorage to send
I'm in a similar position. I would like a load balanced cluster in Digital Ocean but I'd like to take advantage of their load balancers, Managed Postgres and Managed Redis. Is there a guide to configuring a cluster that doesn't have a DB, Redis or Load Balancer? From what I can tell, a load balancer and Redis are required when creating or updating a cluster?
Basically I would like Hatchbox to manage my web servers (2+) and workers (2+) but allow me to configure the URLs to Redis and Postgres.