Long story short, here are two cheatsheets for Kubernetes (tested on 1.13), one in English, and one in French. It will give you some useful commands using kubectl, kubectx, kubens, kubetail, … and also some manifest samples for Ingress and PersistentVolumeClaim.

You can find the English version in PDF format at: https://ibd.sh/cheatsheet-k8s

And the French PDF version at: https://ibd.sh/memo-k8s

Here is a preview of the English version :

Kubernetes cheatsheet EN — PDF available at https://ibd.sh/cheatsheet-k8s

And the same in French :