Book Image

Introduction to DevOps with Kubernetes

By : Onur Yılmaz, Süleyman Akba≈ü
Book Image

Introduction to DevOps with Kubernetes

By: Onur Yılmaz, Süleyman Akba≈ü

Overview of this book

Kubernetes and DevOps are the two pillars that can keep your business at the top by ensuring high performance of your IT infrastructure. Introduction to DevOps with Kubernetes will help you develop the skills you need to improve your DevOps with the power of Kubernetes. The book begins with an overview of Kubernetes primitives and DevOps concepts. You'll understand how Kubernetes can assist you with overcoming a wide range of real-world operation challenges. You will get to grips with creating and upgrading a cluster, and then learn how to deploy, update, and scale an application on Kubernetes. As you advance through the chapters, you’ll be able to monitor an application by setting up a pod failure alert on Prometheus. The book will also guide you in configuring Alertmanager to send alerts to the Slack channel and trace down a problem on the application using kubectl commands. By the end of this book, you’ll be able to manage the lifecycle of simple to complex applications on Kubernetes with confidence.
Table of Contents (11 chapters)

Kubernetes Architecture

Kubernetes is a sophisticated platform consisting of various components that enables us to run production-ready container applications robustly and reliably. It is crucial to learn about its architecture and design to understand how it works and why it is so successful. Kubernetes is designed to run applications on clusters on the cloud or on-premise systems. Virtual or physical server instances are used with a shared network in these clusters to operate in harmony. This is the actual environment where all Kubernetes components and user applications are configured and run.

Servers in a Kubernetes cluster are given two essential roles: master or node. If a server is assigned with the master role, it is expected to run centralized logical components of Kubernetes. It is possible to have more than one master server to achieve high availability, and the master servers run the Kubernetes API server, key/value store, scheduler, and controllers. These components...