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0 pointsdevonbleak4y ago0 comments

It still comes back to right tool for the job. There's a perception in the market that k8s is the right tool for running all compute. As someone recently told me "I've been interviewing cloud people for 2 weeks and all I can find is people that want to run k8s all day."

k8s is not the right tool for every job. Most companies are not at the scale where they need to worry about the problems that it's trying to solve. But it's a cargo cult - they see the blog posts about how moving to k8s solves a bunch of problems that come up as you scale and decide they need to be solving all of those problems also even though there are simpler solutions at their current scale.

There's a bunch of other platforms out there that are way more opinionated and less "awkward" but they don't have the buzz that k8s has.

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bborud4y ago· 2 in thread

Actually, I don't see it as being that much about scale, but more about moving complexity out of applications and about solving robustness challenges. Kubernetes offers a lot of things that are useful even at smaller scales. Which is why I'm not sure I think "but it's for scale" is a valid excuse.

Kubernetes ought at least to be the right tool for a wider range of compute task. And I think it could have been the right tool for a wider range of compute tasks.

devonbleakOP4y ago

When my system is running happily on a single VM with no real robustness issues then I don't really need to solve those robustness issues, and certainly not by bringing in a complex distributed platform to run it on. Or when my lack of robustness isn't costing me enough to make it worth it to spend the engineering cycles to adopt that platform. One way or another I have to be at a scale where it actually makes sense to make this investment vs just doing the simple/easy thing that's good enough for where I'm at.

bborud4y ago

There is a lot of ground between "runs on a single VM" to "runs on thousands of instances". In fact I would think most companies that deliver some online service fit into that category.

For instance, I don't regard one of our products that runs in three availability zones and has 3-4 instances per AZ as being "large scale". It is still a small system. And it doesn't run in multiple AZs for performance reasons but because we really need high availability.

We embedded discovery, failover and automatic cluster management in the server software itself. But it isn't really how we'd like to do it. But it is still less of a hassle than running K8S. (It also means that we can do that if you license our software to run it on-prem on pretty much most runtime environments, and that has its value, but again, this isn't functionality you want or should have to do yourself)

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