: Used to store and manage sensitive information, such as passwords, OAuth tokens, and ssh keys. 5. Security & Access Control Protect your cluster components and application workloads.
In this guide, we've covered 50 essential Kubernetes concepts that every DevOps engineer should know. From basic to advanced topics, we've provided a comprehensive overview of Kubernetes, including pod management, service and networking, storage and StatefulSets, security and identity, and more.
: Automatically scales the number of Pods in a replication controller, deployment, or replica set based on observed CPU/Memory utilization.
Securing clusters involves managing user authorization, network restrictions, and workload access controls.
📥 (Note: Replace with your actual download link)
Decoupling application code from environment configuration and sensitive credentials.
: The complete code examples and supplementary files for all 50 concepts are freely available on the PacktPublishing GitHub . This repository also includes a link to download a PDF containing color images and diagrams from the book. Scribd Guide : A community-uploaded summary titled 50 Essential Kubernetes Concepts for DevOps
This list is divided into 5 logical categories. If you can confidently explain all 50, you are ready for senior-level Kubernetes roles.
A set of scheduling rules that allows you to constrain which nodes your Pod is eligible to be scheduled on based on node labels.
: Managed directly by the Kubelet on a specific node, not the API server. Sidecar Container
Manages the deployment and scaling of a set of Pods, providing guarantees about the unique ordering and persistent storage identity of each Pod (crucial for databases).
: The software responsible for running containers (e.g., containerd, CRI-O). 2. Pods & Workloads Workloads are applications running on Kubernetes.
Automatically adjusts the size of the Kubernetes cluster by adding or removing nodes based on pending pods and resource constraints.
: A method of packaging, deploying, and managing a Kubernetes application using CRDs and custom controllers to automate complex operational tasks. Get Your Copy: Free PDF Download
: Grants the permissions defined in a role to a user or set of users within a specific namespace. ClusterRoleBinding : Grants permissions cluster-wide.
: A temporary container used for troubleshooting when existing pods are failing and cannot be investigated easily. 4. Advanced Workload Controllers
The ABBA Quiz is for all ABBA fans who want to test their knowledge of ABBA’s rich history and achievements. Join our friendly competition, learn new things about the band and share your score with your friends. : Used to store and manage sensitive information,
Already have an account? Log in
Enter the e-mail you created your account with and we’ll send you a link for a new password. In this guide, we've covered 50 essential Kubernetes
Delete your account by entering your email and password in the fields below.