In 2018, Kubernetes had become too big to run on Raspberry Pi. For a while, it meant that kubeadmin could not run on the micro-device. K3s changed that and represents a new take on Kubernetes: stripped of code, K3s is a lightweight version of Kubernetes meant to run on edge devices.

Today, K3s is seeing a rise in popularity as are a host of other new services that focus on the edge for Kubernetes architectures.

It’s now at the point that the Cloud Native Computing Foundation (CNCF) is planning Kubernetes on Edge Day at KubeCon, said Bill Mulligan, marketing manager for CNCF in a podcast recording with Alex Ellis, founder at OpenFaaS and the author of a new course on K3s that will be available for KubeCon, scheduled for May 4-7.