Book Image

Kubernetes Design Patterns and Extensions

By : Onur Yılmaz
Book Image

Kubernetes Design Patterns and Extensions

By: Onur Yılmaz

Overview of this book

Before plunging into how Kubernetes works, this book introduces you to the world of container orchestration and describes the recent changes in application development. You'll understand problems that Kubernetes solves and get to grips with using Kubernetes resources to deploy applications. In addition to this, you'll learn to apply the security model of Kubernetes clusters. Kubernetes Design Patterns and Extensions describes how services running in Kubernetes can leverage the platform's security features. Once you've grasped all this, you'll explore how to troubleshoot Kubernetes clusters and debug Kubernetes applications. You also discover how to analyze the networking model and its alternatives in Kubernetes, and apply best practices with design patterns. By the end of this book, you'll have studied all about using the power of Kubernetes for managing your containers.
Table of Contents (6 chapters)

Chapter 1: Kubernetes Design Patterns

Following are the activity solutions for this chapter.

Activity: Running a Web Server with Synchronization

In the sidecar.yaml file, pod definition with two containers, namely server and sync, is provided. In the server container, httpd serves the source volume on port 80. In the sync container, git runs with every 30 seconds to synchronize the source volume. These two containers work independently; however, they are sharing the source volume to achieve file synchronization:

apiVersion: v1
kind: Pod
name: sidecar
- emptyDir: {}
name: source

Follow these steps to get the solution:

  1. Create the pod with the following command:
 kubectl apply...