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David Nuzik
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1.2 KiB
1.2 KiB
title, shortTitle, name
| title | shortTitle | name |
|---|---|---|
| K3s - 5 less than K8s | K3s | menu |
Lightweight Kubernetes. Easy to install, half the memory, all in a binary less than 40mb.
Great for:
- Edge
- IoT
- CI
- ARM
- Situations where a PhD in k8s clusterology is infeasible
What is this?
K3s is a fully compliant Kubernetes distribution with the following enhancements:
- An embedded SQLite database has replaced etcd as the default datastore. External datastores such as PostgreSQL, MySQL, and etcd are also supported.
- Simple but powerful "batteries-included" features have been added, such as: a local storage provider, a service load balancer, a helm controller, and the Traefik ingress controller.
- Operation of all Kubernetes control plane components is encapsulated in a single binary and process. This allows K3s to automate and manage complex cluster operations like distributing certificates.
- In-tree cloud providers and storage plugins have been removed.
- External dependencies have been minimized (just a modern kernel and cgroup mounts needed). K3s packages required dependencies, including:
- containerd
- Flannel
- CoreDNS
- Host utilities (iptables, socat, etc)