K3s – Lightweight Kubernetes

Re:K3s – Lightweight Kubernetes by erulabs on Wednesday February 27, 2019 @02:46AM (#19261654)

This is extremely welcome. Kube needs to glom on to all available architectures to fulfill its destiny, to some extent, and the memory/cpu usage of kubeapi et al. can be prohibitive for small setups. Having to revert to ansible/systemd in "some cases" really weakens the story of a universal datacenter O/S.

My hope is for more competition for development k8s (or k3s!) - minikube and docker-for-desktop is plagued with high CPU usage problems, and OSX-wielding developers are still doubtful. It will require a lot of work and elbow grease to convince them. I've built a hosted platform that tries to address this, but it's a complex education problem, which I am not well suited to solve :(

[ Parent | on HN ]

Re:K3s – Lightweight Kubernetes by geerlingguy on Wednesday February 27, 2019 @11:33AM (#19264265)

Agreed. Kubernetes (installed via kubeadm) on 1 GB of RAM is a shaky proposition at best; I've been managing a cluster on Raspberry Pis and the master often hits swap managing three Nodes with a dozen or so Pods.

[ Parent | on HN ]

Re:K3s – Lightweight Kubernetes by vhost- on Wednesday February 27, 2019 @11:49AM (#19264465)

K8s doesn’t support swap, you have to disable swap to even run kubelet.

[ Parent | on HN ]

Re:K3s – Lightweight Kubernetes by phire on Wednesday February 27, 2019 @04:14PM (#19266999)

There is an override flag.

It works, but it kind of invalidates all assumptions k8s makes about free memory on a node

[ Parent | on HN ]

Re:K3s – Lightweight Kubernetes by moondev on Wednesday February 27, 2019 @12:53PM (#19265273)

What workloads are you running? With only 1gb, have you looked into setting resource limits for your pods?

[ Parent | on HN ]

Re:K3s – Lightweight Kubernetes by xur17 on Wednesday February 27, 2019 @02:47PM (#19266332)

I really want to do this as well - we've just started looking at minikube for our group, and I'd love to use k3s instead, but does anyone know if it works on OSX? I was able to get a cluster running on my laptop in under a minute, which is pretty amazing.

[ Parent | on HN ]

Re:K3s – Lightweight Kubernetes by farisjarrah on Wednesday February 27, 2019 @04:46PM (#19267249)

Have you seen or used Microk8s ? Seems like it might be what you are looking for. Can be installed and removed via snap package too

[ Parent | on HN ]

Re:K3s – Lightweight Kubernetes by xur17 on Wednesday February 27, 2019 @04:58PM (#19267326)

Microk8s looks interesting as well, but it doesn't support osx as far as I can tell.

[ Parent | on HN ]

Re:K3s – Lightweight Kubernetes by antmanler on Thursday February 28, 2019 @01:55AM (#19269522)

multipass + microk8s on macos https://github.com/CanonicalLtd/multipass

[ Parent | on HN ]