K3S Cheatsheet

K3S

Lightweight Kubernetes ([[kubernetes]]). Production ready, easy to install, half the memory, all in a binary less than 100 MB.

Project Homepage: K3s.io Documentation: K3s Documentation

Installation

To install k3s, you can follow different approaches.

K3s with external DB ([[k3s-install-ha-externaldb]]) - Set up an HA K3s cluster backed by an external datastore such as MySQL, PostgreSQL, or etcd.

K3s with embedded DB ([[k3s-install-ha-embeddeddb]]) - Set up an HA K3s cluster that leverages a built-in distributed database.

K3s single node ([[k3s-install-single]]) -Set up K3s as a single node installation.

Manage K3S

Management on Server Nodes

k3s kubectl

Download Kube Config

/etc/rancher/k3s/k3s.yaml

Database Backups

etcd snapshots

Stored in /var/lib/rancher/k3s/server/db/snapshots.