[efxhoy]

The main problem is state, it’s too big and scattered. If it was just one db that knew everything that would be easy enough to snapshot, but there’s multiple dbs and s3 buckets and messages on queues and its all spread out. We could, with a bunch of work to make stuff actually portable, spin up a complete new environment, but a lot of the work that happens is related to synchronizing state and since all the state is scattered we can’t make an atomic clone of it.

Then of course there’s always the issue of people taking shortcuts, “i will test this once then we know it works then i’ll just hardcode this thing”. Making stuff truly impotent and portable is extra work for a “nice to have” of a feature env. YAGNI, until you do. For most devs they’re happy to have something that works and they can move on and ship the next thing.

Personally i’m a big fan of monoliths because they supposedly make this stuff easier. Then again i’ve never worked on a huge one and my colleagues much prefer spinning up an “isolated independent loosely coupled” service to adding it in the main app.