K3s Node Docs - Lightweight Kubernetes for Edge & IoT

Set up a single-node K3s cluster in under 5 minutes. Covers installation, verification, and deploying your first workload on any Linux system.

Guide

Deploy a highly available K3s cluster with multiple server and agent nodes. Includes etcd configuration and load balancer setup.

Tutorial

Architectural patterns for running K3s on edge hardware. Covers offline installation, air-gapped registries, and low-bandwidth sync strategies.

Reference

Upgrading K3s clusters with System Upgrade Controller
Automated rolling upgrades for multi-node clusters using plans and channels. Updated Feb 22, 2026.
Configuring Traefik Ingress for TLS termination
Built-in ingress controller configuration with Let's Encrypt and custom certificates. Updated Feb 18, 2026.
Storage options: Local Path vs Longhorn
Comparing persistent volume solutions for edge clusters with limited storage. Updated Feb 14, 2026.
Network policies and Flannel configuration
Securing pod-to-pod communication with built-in CNI and network policies. Updated Feb 10, 2026.
Raspberry Pi cluster: Hardware and OS preparation
Recommended hardware, OS images, and kernel parameters for stable Pi-based clusters. Updated Feb 5, 2026.

Lightweight Kubernetes at the Edge