Interesting. I've been looking looking at options too & opted for essentially the opposite: Get a big(ish) VPS and stack everything on top of each other with docker behind a nginx reverse proxy.
So far so good. Managed to host gitlab, prometheus, grafana and ghost working this weekend, which I'm pretty chuffed about.
Not as clean as OP's, but the intention was learning, so sacrifices on convenience are acceptable.
This is the advice I give early stage startups... don’t waste cycles learning the AWS stack, and getting locked in. Just pay for a cheap VPS, and scale it vertically as you grow. By the time you outgrow vertical scaling you should have the revenue or funding to figure out your at scale architecture.
You’d be surprised how much you can handle with a single beefy VPS or dedicated.
A slight twist on this is a cheap, beefy colo box with nothing installed except something like k3s. This way you end up with all the YAML bureaucracy paid down in case that dreamy future with millions of users finally manifests
So far so good. Managed to host gitlab, prometheus, grafana and ghost working this weekend, which I'm pretty chuffed about.
Not as clean as OP's, but the intention was learning, so sacrifices on convenience are acceptable.