As a longtime fan of local #k8s clusters for fast feedback (especially #k3d),I've just faced my first real challenge: deploying LDAP 😅
(caused by #apparmor and nested containerization)

A short story for the seasoned container engineer 👇️

Having fun with #Nix, #k3d and #CERN's QuarkDB: Run it on a (local) Kubernetes cluster! https://codeberg.org/carletes/quarkdb-container-image

🐇 One of those rabbit-holes I kept evading: Improving my local k3d setup. Trusted certificates, easier FQDNs. And automating all of it using Taskfile.

#kubernetes #k3d #cert-manager #coredns

https://www.tibobeijen.nl/2025/03/24/east-west-north-south-fix-local-cluster-routes/

Just messing round with using #k3d jupyter to visualize particle data loaded via #yt.

(notebook at https://github.com/chrishavlin/yt_scratch/blob/master/notebooks/general_scratch/yt_k3d.ipynb)

Hello #Mastodon! And hello everybody on it, my name is John Kaskets and I'm happy to be of service! Feel free to take a look at my recent project released into the wild! The K3D Catapult Dice Tower 3D modeled and 3D printed by me and available by direct purchase in custom color choices or by download ONLY on Cults3D!!! #dnd #dicetower #K3D #K3Ddesignandfunction #dungeonsanddragons #Warhammer40k

I'm unable to create a local #K3s instance with #K3d on my #ArchLinux with Rootless #Podman - Does anyone have a hint how I could make that work? https://github.com/k3d-io/k3d/issues/1429

With Kind I would be able to spin up a local Kubernetes instance and Rootless Podman, but without support for ephemeral storage, which breaks countless workloads.

I've been playing around with #k3s and #k3d and finally figured out how to install a specific k3s version. I wanted to upgrade from 1.27 to 1.29.

k3d cluster create has an --image option. It doesn't mention in help but you need to pass the Dockerhub tag for the specific version you want to install.

Thought I needed to pass the path to the local file I downloaded and that didn't work.

Já vi vários blogs sobre criar um cluster no #k3d, mas sempre pego erros de api do kubernetes. Alguns apps que instalo sempre falam que não conseguiram chegar na api do k8s.

Uso com frequência esse comando
k3d cluster create estudos --api-port 6550 -p "8080:80@loadbalancer" --agents 2

https://dev.to/iamunnip/building-a-local-kubernetes-cluster-using-k3d-2p3d - on #Linux and want a simple #Kubernetes cluster? Getting started with #k3d, a nice CLI around #k3s. Nice tutorial https://github.com/iamunnip.

Fiz um lab no #k3d para testar algumas coisa de monitoramento com #prometheus #grafana #blackbox via #helm

[Question] Harbor registry with Ingress on a k3d cluster

Hi, Has anyone tried to enable #ingress + #certmanager on a #k3d cluster while installing #harbor registry via #helm ? Any inputs on how to achieve this on macos? TIA

@selfhost

#KubeCon #KubeConEU

And before I go catch my train, last conference, but this time not in the security track

"Sharpen the Edge with K3s and
Containerized Operating Systems" by Suse

#k3d #edge #iot #lightweight #kubernetes

Me before today: #k3d and #k3s are basically the same.

Today: let's add an external node to this on demand so I can do big things!

Me today: dang, k3s and k3d are different in important ways 😥
#kubernetes

I just published a post about using #K3D to create lightweight local #kubernetes clusters. Check it out:

https://blog.jameswynn.com/posts/2023-01-27-easy-local-kubernetes-deployments-with-k3d/

#selfhosted #linux #devops

Been playing with #k3d and #tilt recently. K3d deploys lightweight #kubernetes cluster on top of #docker with local storage, load balancing, and an ingress controller in under 2 minutes. Pretty freaking awesome.

And Tilt is basically a local #CI loop which can rebuild and deploy your containers and helm charts. For the project I was playing with, it would deploy rebuild and deploy my changes in about 15s.

#k3s #selfhosted #cloudnative #cicd

@geekgonecrazy @jorge I have gotten #k3d to work in #Kinoite with podman-docker.

Last but not least, if you need a path-local PersistentVolumeClaim across multiple pods (such as for #Mastodon) in #k3d that is read/write for all, then those pods all need to live on the same node as per k8s specs.

I couldn't find this documented anywhere, but if you use nodeName (the simplest solution) to lock the pods to a node, then this will break the PVC! You must use nodeAffinity instead.

#xp

On #k3d and #k3s

Make sure you have your cluster setup right with k3d. Changing things is nigh impossible without recreating the entire cluster!

If you have services running in docker you want to expose to k3s (such as your main PostgreSQL), connect that container to k3d's docker network, then add that IP to k3d's CoreDNS ConfigMap NodeHost section. I've not found any other reliable way to do this.

Docker and ufw still do not play nicely together without ufw-docker. nmap every change!

#xp

:kubernetes: I always played locally with #k3d because when I tried #k3s it messed up things around my machine that I wasn't really aware of. Just out of curiosity, is it possible to have a "production" environment with k3d? Would it make sense? With "prod" I mean just a multi node infrastructure on multiple machines. I've not found many articles or tutorials about it. #kubernetes

Ever wondered what we would have if we didn't have #Blender?
The answer is a scattered mess of FLOSS projects, each tailored for a specific task, not the least of which being #K3D, the only one that does 3D animation, although I have yet to see a single piece of art or animation made with it.
I can't predict alternate realities and of course more effort and developers would've gone into these other projects but man, would things be different without Ton Roosendaal. 🧡 💙 🧡
#b3d