Book Image

The Kubernetes Bible

By : Nassim Kebbani, Piotr Tylenda, Russ McKendrick
4 (3)
Book Image

The Kubernetes Bible

4 (3)
By: Nassim Kebbani, Piotr Tylenda, Russ McKendrick

Overview of this book

With its broad adoption across various industries, Kubernetes is helping engineers with the orchestration and automation of container deployments on a large scale, making it the leading container orchestration system and the most popular choice for running containerized applications. This Kubernetes book starts with an introduction to Kubernetes and containerization, covering the setup of your local development environment and the roles of the most important Kubernetes components. Along with covering the core concepts necessary to make the most of your infrastructure, this book will also help you get acquainted with the fundamentals of Kubernetes. As you advance, you'll learn how to manage Kubernetes clusters on cloud platforms, such as Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform (GCP), and develop and deploy real-world applications in Kubernetes using practical examples. Additionally, you'll get to grips with managing microservices along with best practices. By the end of this book, you'll be equipped with battle-tested knowledge of advanced Kubernetes topics, such as scheduling of Pods and managing incoming traffic to the cluster, and be ready to work with Kubernetes on cloud platforms.
Table of Contents (28 chapters)
1
Section 1: Introducing Kubernetes
5
Section 2: Diving into Kubernetes Core Concepts
12
Section 3: Using Managed Pods with Controllers
17
Section 4: Deploying Kubernetes on the Cloud
21
Section 5: Advanced Kubernetes

Chapter 6: Configuring Your Pods Using ConfigMaps and Secrets

The last two chapters, entitled Chapter 4, Running Your Docker Containers, and Chapter 5, Using Multi-Container Pods and Design Patterns, introduced you to launching Docker containers using Kubernetes. At this point, you know that whenever you need to launch a container on Kubernetes, you will need to do so using Pods. This was the key concept for you to understand and assimilate. We also learned that Kubernetes is nothing more than a REST API that describes resources types we call Kind. When created against an API, each instance of a Kind will result in a computing resource being provisioned on a worker node. A Pod is one of these resources, and when they're created against the worker node, this results in Docker containers.

In this chapter, we'll learn about two new Kubernetes objects: ConfigMaps and Secrets.

These are two very important objects or resources that allow you to configure the apps that run...