Heh, also praying that everything stays in the fast path. If a small portion of the workload uses a higher portion of machine resources then the moment an attacker figures it out they have a great way of DDOSing your service resources.
Four vms isn’t too bad to manage, I was the first dev at a startup that went prelaunch to acquisition from 2 App/DB servers in EC2 for a mobile app that hit #1 on both stores with a fairly high user tx rate and some ML stuff.
