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Sidero Labs
siderolabs.com › blog › talos-linux-vs-k3s
Talos Linux vs. K3s: What’s the difference?
January 7, 2026 - It defaults to SQLite (via kine) ... like IoT devices or single-board computers. Talos Linux is a lightweight Operating System that deploys vanilla Kubernetes....
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Civo
civo.com › home › blog › k3s vs. talos linux: what’s the difference
K3s vs. Talos Linux: What’s the difference | Civo
K3s is a lightweight, easy-to-install Kubernetes distribution that can run production-grade clusters in fully-fledged and resource-constrained environments like Edge computing, IoT, and CI/CD.
Published   April 28, 2026
Discussions

k3s vs Talso for energy consumption
Do you mean Talos? I have a good bit of experience with Talos, it what I use for my main cluster. I'd say it's probably similarly efficient to an average k3s install. It's hard to compare directly though as k3s is just part of the equation when you consider the system as a whole. I think either way the difference would be very minor and probably not worth making any changes one way or another just to achieve marginal efficiency gains. The reason to use Talos would be the API driven config and immutable OS which make it super easy to install and manage More on reddit.com
🌐 r/kubernetes
16
4
November 2, 2024
[ Removed by moderator ]
https://www.siderolabs.com/blog/is-vanilla-kubernetes-really-too-heavy-for-the-raspberry-pi/ More on reddit.com
🌐 r/kubernetes
17
22
June 20, 2024
Kubernetes home lab question-k3s to Talos
I switched from k3s to talos, because it was just easier and faster to set up in my unique circumstances. ...And then switched back to k3s lol because pki management and secure boot on talos killed me. Running a similar stack to yours, with minimal nixos as OS under k3s. It gives me enough flexibility with experimenting and addressing hardware quirks, and is still immutable(-ish) versioned IoC approach, easier secure boot(lanzaboote) and somewhat similar security in general (impermanence, gvisor, etc). Colmena for node management and lightweight microvms.nix where needed. I used to run ceph , but it grew real PITA real fast, so now I'm on democratic CSi and nvmeof. Cilium, fluxcd and other low level components are easy to configure with nix as you can pass values around and inject them into values.yaml before rendering helm. Love Talos tho, they're heading in a very cool direction with system settings as CRDs. I wish they had the whole config management like that, because things are especially bad with talos secret injection, I basically couldn't find a way to decrypt and pass secrets to talosctl without plain text secret ever touching disk. Secure boot is another PITA , you either enroll their keys or build your own image yourself. Power management is also a bit ugly especially with the kernel in lockdown on secure boot. Their discovery service is hard to get around and they don't support clevis/tang but rather some in-house key-server. But those aren't deal-breakers for the majority of us (not everyone is as privacy paranoid as I am lol) . For configuration I ended up using helm, then helm template to talosctl apply. It still would require gen config to inject secrets so some scripting is required, it also makes more PITA to control updates. Like every new minor talosctl version can and will gen config something new in the final output. I admit I might have skill issue with Talos. Talos is still pretty awesome. Ama More on reddit.com
🌐 r/homelab
11
4
March 19, 2026
Experiences with Thalos, Rancher, Kubermatic, K3s or Open Nebula with OnKE
I run Talos in my home lab and have been championing for it at work, they decided to go Openshift as RedHat is a more recognised brand. My experience with Talos has been nothing short of spectacular. It does what it says on the tin, Upgrades have been seamless and i've mostly automated them away. If i had to choose any Kube distribution knowing what i've tested (Kubeadm, K3s, AKS, Openshift, Talos) i'd pick Talos in a heart beat. What i'm unclear on is the level of support they offer to Enterprise, but they've been known to poke their heads into this subreddit and have been super responsive about questions etc. I'd check that out as a first point of call personally. More on reddit.com
🌐 r/kubernetes
20
9
June 19, 2025
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OneUptime
oneuptime.com › home › blog › how to compare talos linux vs k3os
How to Compare Talos Linux vs k3OS
March 3, 2026 - # k3OS configuration ssh_authorized_keys: - ssh-rsa AAAA... hostname: edge-node-01 k3os: k3s_args: - server - --cluster-init token: my-cluster-token labels: role: server · Talos Linux was designed as a general-purpose Kubernetes OS.
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CloudRaft
cloudraft.io › blog › k3s-vs-talos-linux
K3s vs Talos Linux
June 18, 2024 - K3s is ideal for smaller resource-constrained deployments, edge computing, and IoT while Kubernetes is more suited for large, complex deployments that have high resource requirements such as big data, machine learning, and high-performance computing.
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Talos Linux
talos.dev
Sidero Labs | Makers of Talos Linux and Omni
As much as I don't like drinking an individual company's koolaid, so far this one's lit. ... Talos is so nice and simple to manage when compared to having to manage both k3s and the host OS.
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Reddit
reddit.com › r/kubernetes › k3s vs talso for energy consumption
r/kubernetes on Reddit: k3s vs Talso for energy consumption
November 2, 2024 -

I currently have a k3s cluster setup (I followed a video from Jim's garage). Its installed on 3 mini pcs 2x 5700u(16 core 64gig ram) and 1 n100(4 core 32 gig ram). I mainly wanted HA for services like pihole, traefik like vaultwarden that I don't to want go down, I have longhorn running for HA.

After watching a recent video on Talos I am wondering if that would be a better fit. I saw a post from the makers of Talos comparing the resource use on a pi4 with Talso vs k3s and k3s used about half the energy of the Talso at around 5% idle vs 9% cpu usage with Talos at idle.

The only thing about these results are they are from 2021 so they could have improved the resource efficiency.

Obviously I am following youtube videos so I am not super experienced with kubernetes. What is the the best choice?

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OneUptime
oneuptime.com › home › blog › how to migrate from k3s to talos linux
How to Migrate from k3s to Talos Linux
March 3, 2026 - Step-by-step instructions for migrating your k3s Kubernetes clusters to Talos Linux while preserving workloads and minimizing service disruptions.
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Medium
jurgenallewijn.nl › beyond-the-cloud-running-kubernetes-with-talos-comparing-talos-k3s-aks-and-eks-a0d184ed5505
Beyond the Cloud: Running Kubernetes with Talos: Comparing Talos, k3s, AKS, and EKS | by Jurgen Allewijn | Medium
November 25, 2025 - Developed by Sidero Labs, Talos ... on Linux to becoming an OS centered around Kubernetes itself. It enhances security by replacing SSH with a straightforward API, eliminating package managers, and tightly securing its surface to prevent attacks or drift. In this blog, we will examine Talos, compare it with k3s, AKS, and ...
Find elsewhere
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Reddit
reddit.com › r/kubernetes › [ removed by moderator ]
r/kubernetes on Reddit: [ Removed by moderator ]
June 20, 2024 - From my perspective you’re comparing oranges with tomatoes. Talos is a full OS, configured in a very specific way. K3s is a binary that can run on technically any Linux OS, and configured to your specific needs.
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Hoop
hoop.dev › blog › what-talos-k3s-actually-does-and-when-to-use-it
What Talos k3s Actually Does and When to Use It
October 17, 2025 - K3s, on the other hand, delivers a lightweight Kubernetes distribution tuned for edge or small-footprint deployments. Put them together and you get an OS and control plane that align perfectly: minimal, declarative, fast to recover, and easy ...
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Reddit
reddit.com › r/homelab › kubernetes home lab question-k3s to talos
r/homelab on Reddit: Kubernetes home lab question-k3s to Talos
March 19, 2026 -

Hello community.

I have 5 HP Mini G4s i5 8500t lying around with 32GB RAM each, running Ubuntu 24.04 LTS, and I've been building a k3s cluster on them. (3 cp+ 2 workers).

For persistent storage, I already have TrueNAS set up with NFS. On the cluster I plan on hosting Immich, NextCloud, Forgejo, Vaultwarden, Uptime Kuma, n8n, Backstage, some Postgres, FreshRSS, and a WordPress dev environment.
Jellyfin, I'm keeping it directly on TrueNAS since it has an Intel Arc A380 and direct GPU access for transcoding just makes more sense there - at least I think so , though I have looked into FFmpeg remote transcoding.

I'm going with Gateway API for ingress, Cilium as CNI, and Grafana + Prometheus for observability.

For remote access, I plan on using CloudFlare tunnels(for exposing some apps to the internet like Jellyfin, Immich, NextCloud) and also have Twingate for home lab remote access.

I've been looking at Talos Linux since the immutable OS model is appealing — no SSH, no package management, less stuff to maintain.

Has anyone here switched from k3s to Talos, or run both?

Thanks for your time :)

Top answer
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I switched from k3s to talos, because it was just easier and faster to set up in my unique circumstances. ...And then switched back to k3s lol because pki management and secure boot on talos killed me. Running a similar stack to yours, with minimal nixos as OS under k3s. It gives me enough flexibility with experimenting and addressing hardware quirks, and is still immutable(-ish) versioned IoC approach, easier secure boot(lanzaboote) and somewhat similar security in general (impermanence, gvisor, etc). Colmena for node management and lightweight microvms.nix where needed. I used to run ceph , but it grew real PITA real fast, so now I'm on democratic CSi and nvmeof. Cilium, fluxcd and other low level components are easy to configure with nix as you can pass values around and inject them into values.yaml before rendering helm. Love Talos tho, they're heading in a very cool direction with system settings as CRDs. I wish they had the whole config management like that, because things are especially bad with talos secret injection, I basically couldn't find a way to decrypt and pass secrets to talosctl without plain text secret ever touching disk. Secure boot is another PITA , you either enroll their keys or build your own image yourself. Power management is also a bit ugly especially with the kernel in lockdown on secure boot. Their discovery service is hard to get around and they don't support clevis/tang but rather some in-house key-server. But those aren't deal-breakers for the majority of us (not everyone is as privacy paranoid as I am lol) . For configuration I ended up using helm, then helm template to talosctl apply. It still would require gen config to inject secrets so some scripting is required, it also makes more PITA to control updates. Like every new minor talosctl version can and will gen config something new in the final output. I admit I might have skill issue with Talos. Talos is still pretty awesome. Ama
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I did this transition a couple years ago. No regrets. Talos is so nice and simple to manage when compared to having to manage both k3s and the host OS. To make it even better, deploy a self hosted instance of Omni to manage the the Talos nodes, gives you a nice interface to handle things like rolling out config patches, rolling Talos and k8s updates, and scaling up and down (as well as integrating with infrastructure providers to automatically provision machines.
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Reddit
reddit.com › r/kubernetes › experiences with thalos, rancher, kubermatic, k3s or open nebula with onke
r/kubernetes on Reddit: Experiences with Thalos, Rancher, Kubermatic, K3s or Open Nebula with OnKE
June 19, 2025 -

Hi there,

I‘m reaching out as I want to know about your experience with different K8s.

Kontext: We’re currently using Tanzu and have only problems with it. No update went just smooth, for a long time only EOL k8s versions available and the support is friendly said a joke. With the last case we lost the rest of our trust. We had a P2 because of a production cluster down due to the update. It took more than TWO!!! months to get the problem solved so that the cluster is updated to (the inbetween outdated) new k8s version. And even if the cluster is upgraded it seems like the root cause is still not figured out. What is really a problem as we still have to upgrade one cluster which runs most of our production workload and can’t be sure if it will work out or not.

We’re now planning to get rid of it and evaluate some alternatives. That’s where your experience should come in. On our shortlist are currently:

  • Thalos

  • k3s

  • Rancher

  • Open Nebula with OneKE

  • Kubermatic (haven’t intensively checked the different options yet)

We’re running our stuff in an on premise data center currently with vsphere. That also will probably stay as my team, opposite to Tanzu, has not the owner ship here. That’s why I’m for example not sure, if Open Nebula would be overkill as it would be rather a vsphere replacement than just Tanzu. What do you think?

And how are your experiences with the other platforms? Important factors would be:

  • stability

  • as less complexity is necessary

  • difficulty of setup, management, etc.

  • how good is the support of there is one

  • is there an active community to get help with issues

  • If not running bare metal, is it possible to spin up nodes automatically in VMWare (could not really find something in the documentation.

Of course a lot of other stuff like backup/restore, etc. but that’s something I can figure out via documentation.

Thank’s in advance for sharing your experience.

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Civo
civo.com › home › blog › an introduction to talos linux: the new kubernetes operating system
An introduction to Talos Linux: The new Kubernetes operating system | Civo
Talos Linux is an open-source Linux distribution designed to run Kubernetes, K3s, or other container orchestration systems. It features a highly secure, API-managed infrastructure with automated and scalable operations.
Published   March 24, 2026
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Sidero Labs
siderolabs.com › blog › which-kubernetes-is-the-smallest
Which Kubernetes is the smallest?
July 8, 2025 - Memory usage, disk i/o, and total disk usage were always less on Talos Linux. Note: The only configuration change made from the default installation was the disabling of the local dashboard. This is also recommended for single-node and edge installations. K3s has a reputation for being small, and they claim an entire Kubernetes distribution in a single binary, less than 70 MB.
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GitHub
github.com › drewpayment › talos-home-ops
GitHub - drewpayment/talos-home-ops: A template for deploying a Kubernetes cluster with k3s or Talos · GitHub
[Post install] Follow steps 3 and 4 from k3s (AMD64). [Post install] Install python3 which is needed by Ansible. ... Once you have installed Talos or Debian on your nodes, there are six stages to getting a Flux-managed cluster up and runnning.
Author   drewpayment
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CloudRaft
cloudraft.io › blog › making-kubernetes-simple-with-talos
Making Kubernetes Simple with Talos
May 7, 2024 - Talos can help us keep Kubernetes infrastructure more reliable and consistent by adding the immutable idealogy on which Talos is built. Talos always runs as a SquashFS image which is a read-only file system in Linux.
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Josh Kasuboski
joshkasuboski.com › posts › talos-cluster
Talos Cluster | Josh Kasuboski
October 30, 2024 - I’ve now migrated just about everything from my old k3s cluster to a cluster run by Talos. From the Talos website, “Talos Linux is Linux designed for Kubernetes – secure, immutable, and minimal.” It has only what is needed for kubernetes ...
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Robkenis
robkenis.com › posts › k3s_to_talos
Reworking my homelab with Talos - Rob Kenis
January 15, 2024 - As I got more familiar with containers, I started to look into ways to minimize management, I needed my infrastructure to update itself. I started to look into Kubernetes, and I found a lightweight Kubernetes distribution called k3s. It was easy to set up, and it was lightweight enough to run on my Raspberry Pi’s.
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SpectroCloud
spectrocloud.com › homepage › blog › k3os alternatives: the best container os for edge kubernetes
k3OS Alternatives: Top Container OS for Edge Kubernetes - Spectro Cloud
November 25, 2025 - This drastically reduces the attack surface of the cluster. However, the opinionated approach of Talos also means that it has some drawbacks and limitations: It doesn’t support K3S, although the reduced OS size compensates for the total footprint difference.