It depends what you're doing it.

My app is fairly simple node process with some side car worker processes. k8s enables me to deploy it 30 times for 30 PRs, trivially, in a standard way, with standard cleanup.

Can I do that without k8s? Yes. To the same standard with the same amount of effort? Probably not. Here, I'd argue the k8s APIs and interfaces are better than trying to do this on AWS ( or your preferred cloud provider ).

Where things get complicated is k8s itself is borderline cloud provider software. So teams who were previously good using a managed service are now owning more of the stack, and these random devops heros aren't necessarily making good decisions everywhere.

So you really have three obvious use cases:

a) You're doing something interesting with the k8s APIs, that aren't easy to do on a cloud provider. Essentially, you're a power user. b) You want a cloud abstraction layer because you're multi-cloud or you want a lock-in bargaining chip. c) You want cloud semantics without being on a cloud provider.

However, if you're a single developer with a single machine, or a very small team and you're happy working through contended static environments, you can pretty much just put a process on a box and call it done. k8s is overkill here, though not as much as people claim until the devops heros start their work.

I totally agree, but that's not what happens in reality: the average devops knows k8s and will slap it onto anything they see (if only so they can put in on their resume). The average manager hears about k8s, gets convinced they need and hires beforementioned devops to build it.

Depends. For personal projects, yeah definitely. But at work? Typically the “Platform” team can only afford to support 1 (maybe 2) ways of deployment, and k8s is quite versatile, so even if you need 1 small service, you’ll go with the self-service-k8s approach your Platform team offers. Because the alternative is for you (or your team) to own the whole infrastructure stack for your new deloyment model (ecs? lambda? Whatever): so you need to setup service accounts, secret paths, firewalls, security, pipelines, registries, and a large etc. And most likely, no one will give you access rights for all of that , and your PM won’t accept the overhead either.

So having everyone use the same deployment model (and that’s typically k8s) saves effort. I don’t like it for sure

In some sense, Kubernetes is just a portable platform for running Linux services, even on a single node using something like K3s. I almost see it as being an extension of the Linux OS layer.

I know that "resume-driven development" exists, where the tradeoffs between approaches aren't about the technical fit of the solution but the career trajectory. I've seen people making plain workstation preparation scripts using Rust, only to have something to flex about in interviews.

I'm not surprised even in the slightest that DevOps workers will slap k8s on everything, to show "real industry experience" in a job market where the resume matches the tools.

I have nom doubt that there are legit use cases for something like k8s at Google or other multi-billion companies.

But if its use was confined to this use case, pretty much nobody would be using it (unless as a customer of the organization's infra) and barely would be talking about it (like how there isn't too much talk about Borg).

The reason k8s is a thing in the first place is because it's being used by way too many people for their own goods. (Most people having worked in startups have met too many architecture astronauts in our lives).

If I had to bet, I'd wager that 99% of k8s users are in the “spin a few containers to run your web app” category (for the simple reason that for one billion-dollar tech business using it for legit reasons, there's many thousands early startups who do not).

yeah it's like wanting to drive to the mall in the Space Shuttle and then complaining how its too complicated

They use it for inflating their resume for career progression rather than actually evaluating if they need it in the first place.

This is why you get many folks over-thinking the solution and picking the most hyped technologies and using them to solve the wrong problems without thinking about what they are selling.

You don't need K8s + AWS EC2 + S3 just to host a web app. That tells me they like lighting money on fire and bankrupting the company and moving to the next one.