k3s - a small but certified Kubernetes by Rancher Labs

Requirements:

• Linux 3.10+
• 512 MB of ram per server
• 75 MB of ram per node
• 200 MB of disk space
• x86_64, ARMv7, ARM64

Rancher Labs has released a new product for Edge, IoT, CI with ARM support: k3s

There is no Legacy / Alpha support, there is a replacement etcd3 with sqlite by default (you can enable etcd3).

Instead of Docker, containerd is used: there is no libnetwork, swarm, drivers for Docker storage.
To reduce memory consumption, Kubelet, kubeproxy and flannel agent are combined into one process.

The installer is simple, certificates are generated automatically.

k3s.io
github.com/rancher/k3s