Learning Kubernetes
Kubernetes is an open-source container-orchestration system for automating application deployment, scaling, and management. It was originally designed by Google and is now maintained by the Cloud Native Computing Foundation. - Wikipedia
What is Kubernetes - The Illustrated Children's Guide to Kubernetes
source: https://www.youtube.com/watch?v=4ht22ReBjno
Kubernetes Overview
Image source: Khtan66 CC BY-SA 4.0, from Wikimedia Commons