K3s – Lightweight Kubernetes • Hacker News Board

Re: K3s – Lightweight Kubernetes

#61

Post by worldsayshi » Wed, Oct 11, 2023, 5:02 PM UTC

vCluster is an interesting related technology. It spins up k3s inside Kubernetes. Handy if you want a lightweight way to manage multiple staging environments.

https://www.vcluster.com/docs/what-are-virtual-clusters

Re: K3s – Lightweight Kubernetes

#62

Post by doctorpangloss » Wed, Oct 11, 2023, 5:04 PM UTC

diggan wrote: post #17

"Lightweight Kubernetes" and then a graph involving 2 different nodes with 10+ services running on them. Nomad seems to be a truly "lightweight Kubernetes" and for the small amount of time I've been using it, it seems to do it's job really well and it's easy to understand all the moving pieces without spending countless of hours reading docs and source code. Although, it's hard to recommend Nomad for future uses as i…

> "Lightweight Kubernetes" and then a graph involving 2 different nodes with 10+ services running on them.

Among its many strengths, core services for running Kubernetes running inside Kubernetes itself is one of its greatest.

> it's easy to understand all the moving pieces

It's legit to leverage your pre-existing knowledge. Nomad + Linux Pets + Other Hashichorp Pets works well.

There are many ways to run an application. Kubernetes + Machine Cattle, in my experience having started from zero, is superior to any other application deployment paradigm I've ever used.

Re: K3s – Lightweight Kubernetes

#63

Post by ge96 » Wed, Oct 11, 2023, 5:08 PM UTC

worksonmine wrote: post #59

JohnMakin wrote: post #52

Earlier quoted context omitted.

So wouldn't it be K4s? I can't figure out how they got 3.

Cut the 8 in half and you get 3, not mathematically but visually.

KԐS

Re: K3s – Lightweight Kubernetes

#64

Post by einstand » Wed, Oct 11, 2023, 5:08 PM UTC

My favorite presentation about K3s is when Darren Shepherd explains all the black magic (=all the custom patches) which made it possible:

https://www.youtube.com/watch?v=k58WnbKmjdA

Re: K3s – Lightweight Kubernetes

#65

Post by mfer » Wed, Oct 11, 2023, 5:15 PM UTC

withinboredom wrote: post #60

mfer wrote: post #34

Earlier quoted context omitted.

If you want to easily try it out, we baked it into Rancher Desktop [1]. RD let's you run Kubernetes (via k3s) and containers on your desktop. You pick the k8s version. [1] https://rancherdesktop.io/ Disclosure, I work for SUSE and started Rancher Desktop.

I've honestly been scared to switch from Docker Desktop to Rancher Desktop on Windows. Like do I have to switch or do they play nice together? Do I need to install Docker in WSL to use it, or kubectl, or is it like Docker Desktop where it "just works." So many questions...

You can have Docker Desktop and Rancher Desktop installed on the same Windows machine. Last I checked, you can't run them both at the same time due to docker socket locations (assuming you run Rancher Desktop using Moby).

Rancher Desktop will provide the CLI tools to work with it.

The idea is "it just works". It's a desktop app so it installs what you need.

Re: K3s – Lightweight Kubernetes

#66

Post by praveenhm » Wed, Oct 11, 2023, 5:19 PM UTC

I've been closely following the discussion on k3s and Kubernetes in general. I recently acquired an M1 Mac Ultra, and I'm curious about the best options available for running Kubernetes locally on it.

Does anyone have experience or recommendations in this area? I've heard about a few tools but wanted to gather insights from this knowledgeable community.

Re: K3s – Lightweight Kubernetes

#67

Post by dmm » Wed, Oct 11, 2023, 5:20 PM UTC

thelastparadise wrote: post #23

vault wrote: post #9

forget about it if you want to run it on an IPv6-only VPS, it's not ready yet

There's not any common reason I can think of to go ipv6 on the backend. KISS --if there's enough IPs in a private v4 range, use them. If you need/want to serve v6 clients, put a v6 load balancer in front. You're likely going to need that lb anyway.

> KISS

ipv6 and routable ips is way simpler than patching layer 2 networks together.

Re: K3s – Lightweight Kubernetes

#68

Post by nurettin » Wed, Oct 11, 2023, 5:21 PM UTC

I wish kubernetes could install and manage services through systemd.

Re: K3s – Lightweight Kubernetes

#69

Post by maxekman » Wed, Oct 11, 2023, 5:21 PM UTC

praveenhm wrote: post #66

I've been closely following the discussion on k3s and Kubernetes in general. I recently acquired an M1 Mac Ultra, and I'm curious about the best options available for running Kubernetes locally on it. Does anyone have experience or recommendations in this area? I've heard about a few tools but wanted to gather insights from this knowledgeable community.

You should try out OrbStack: https://docs.orbstack.dev/kubernetes/

I switched to it completely, it’s very convenient to have both fast (-est on Mac) Docker support and a really smooth VM setup for running occasional Linux tools (such as Yocto in my case).

Edit: added some background info to my recommendation.

Re: K3s – Lightweight Kubernetes

#70

Post by merb » Wed, Oct 11, 2023, 5:23 PM UTC

BossingAround wrote: post #20

Interestingly, SUSE now owns Rancher [0], so k3s has been backed by a large company for some time now. I've never tried k3s, but I have always thought it's probably the most loved-by-its-users version of Kubernetes. [0] https://www.suse.com/news/suse-completes-rancher-acquisition...

k3s is not just backed by suse its also a cncf sandbox project: https://www.cncf.io/projects/k3s/