My experience with Kubernetes is limited, so take all this with a grain of salt. I've been using the integrated swarm since beta.

The new integrated swarm is a real game-changer in that it is much simpler to use compared to other solutions. With swarm, it's simply:

    docker swarm init
    docker swarm join --token <blah> <blah:2377>  

That being said, I found that Kubernetes offers more granularity in the level of control over the cluster. That's not something that __I__ need necessarily, though obviously YMMV.

I've had the same great, simple experience with Flynn. The terminal commands you give are barely different from Flynn's. And I like Flynn's capabilities better, at least for now. They've already figured out the routing fabric (unlike Docker, per the article) and they have a great redundant DB capability, sorely missing from other PaaSes, even k8s.

I have no doubt that docker will eventually catch up though.

That's cool. I've never looked at Flynn, but you've motivated me to give it a look!

People are working one this feature for kubernetes:

  kubeadm init master
  kubeadm join node --token=73R2SIPM739TNZOA <master-ip>

https://github.com/kubernetes/kubernetes/pull/30360