50 Kubernetes Concepts Every Devops Engineer Should Know Free Pdf ~upd~ Jun 2026

The front end for the Kubernetes control plane; the only component you interact with directly.

A resource that tracks the IP addresses of the Pods targeted by a Service. The front end for the Kubernetes control plane;

The source of truth. A highly available key-value store that holds the entire state of your cluster. Lose etcd, lose the cluster. A highly available key-value store that holds the

You cannot memorize 50 complex interactions overnight. When you are debugging a crash-loop backoff at 2 AM, you do not want to scroll through ads or vague documentation. You need a cheat sheet that tells you: When you are debugging a crash-loop backoff at

An abstract way to expose an application running on a set of Pods as a network service.

Setting up clusters in major clouds like Azure (AKS) , AWS (EKS) , and GCP (GKE) , as well as on-premises reality checks.

A directory accessible to containers in a pod; lives as long as the pod.