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Comment by notpushkin | Hacker News Reader

The main reason probably was the fact that I was already familiar with Docker and Docker Compose. Kubernetes introduces a whole lot of concepts that I didn't feel like studying up, plus there was a 3-node minimum requirement. I just wanted to be able to start with a single node and be able to scale up if needed, so Swarm just felt like a natural match here.

I'm looking into K8s and other orchestrators like Nomad and perhaps will add support in Lunni at some point, but for now I believe Swarm is the sweet spot for smaller deployments (from single server up to maybe a couple hundred nodes).

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There are several k8s implementations that are fine with a single node: k3s in particular is worth a look. But Swarm is still quite legit in my book.

I'll look into it, thank you so much! Way back then there wasn't a lot of choice though. I think I've played with Minikube but that was not recommended for production, and all the other distributions were huge (or at least I thought so!).

There isn't actually ( nor was there ever ) a 3 node requirement for k8s.

Etcd requires 3 boxes for HA, but nothing stops you running a single node etcd.

I personally run single master clusters, because if the master goes down, you lose management as opposed to actual service availability, so mostly I don't care.

Now that there's anything wrong with your preference.

I might be misremembering it, huh! Yeah, it's pretty much the same as Swarm then (any odd number of manager nodes is valid, and if more than a half go down you only lose the management ability and everything else stays up).

How's Lunni going? Is swarm working well? I remember an announcement of it some time ago :-)

Not too bad, except I have no idea how many users we have :')

Swarm still works pretty smoothly for me, although I'm worried about the Mirantis situation, too. I'm currently working on a new backend, which will also enable us to plug in other orchestrators if need arises.

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