50 Kubernetes Concepts Every Devops Engineer Should Know [extra — Quality] Free Pdf

: Manages time-based Jobs, allowing you to run Pods on a scheduled basis (similar to Linux crontab). 5. Networking & Service Discovery

These are the foundational building blocks you will deploy daily.

Specifications of how groups of pods are allowed to communicate with each other and with other network endpoints. It acts as a firewall for pods. 29. CoreDNS

Master the Orchestration: 50 Kubernetes Concepts Every DevOps Engineer Should Know : Manages time-based Jobs, allowing you to run

Mastering the Cloud: 50 Kubernetes Concepts Every DevOps Engineer Should Know

The 50 concepts outlined above represent the essential vocabulary and building blocks of Kubernetes. Whether you're preparing for CKA/CKAD/CKS certifications, managing production clusters, or transitioning to a cloud-native architecture, these concepts form the foundation of effective Kubernetes operations.

Stores sensitive information like passwords, OAuth tokens, and SSH keys. Phase 5: Cluster Management and Scaling Specifications of how groups of pods are allowed

Manages access to resources based on roles and permissions.

A directory accessible to containers in a pod. Kubernetes volumes have an explicit lifetime—the same as the pod that encloses it.

Never hardcode passwords in your image.

How containers talk to each other, to the cluster, and to the outside world.

: Prevents Pods from running on the same node (for high availability). HPA (Horizontal Pod Autoscaler) : Scales Pods based on CPU/RAM usage. VPA (Vertical Pod Autoscaler) : Automatically sets resource requests/limits. Cluster Autoscaler : Increases/decreases the number of nodes in the cluster. PriorityClass

The automated schedule. Runs Jobs on a repeating schedule, exactly like traditional Linux cron jobs. 17. Init Containers to the cluster

: Determines if a container needs to be restarted. If it fails, Kubernetes kills the container and initiates its restart policy.