Book Image

Managing Kubernetes Resources Using Helm - Second Edition

By : Andrew Block, Austin Dewey
Book Image

Managing Kubernetes Resources Using Helm - Second Edition

By: Andrew Block, Austin Dewey

Overview of this book

Containerization is one of the best ways to implement DevOps, and learning how to execute it effectively is an essential part of a developer’s skillset. Kubernetes is the current industry standard for container orchestration. This book will help you discover the efficiency of managing applications running on Kubernetes with Helm. Starting with a brief introduction to Helm and its impact on users working with containers and Kubernetes, you’ll delve into the primitives of Helm charts and their architecture and use cases. From there, you’ll understand how to write Helm charts in order to automate application deployment on Kubernetes and work your way toward more advanced strategies. These enterprise-ready patterns are focused on concepts beyond the basics so that you can use Helm optimally, looking at topics related to automation, application development, delivery, lifecycle management, and security. By the end of this book, you’ll have learned how to leverage Helm to build, deploy, and manage applications on Kubernetes.
Table of Contents (18 chapters)
1
Part 1: Introduction and Setup
5
Part 2: Helm Chart Development
12
Part 3: Advanced Deployment Patterns

Understanding the WordPress application

WordPress is an open source Content Management System (CMS) used to create websites and blogs. Two different variants are available – WordPress.com and WordPress.org. WordPress.com is a Software-as-a-Service (SaaS) version of the CMS, meaning the WordPress application and its components are hosted and managed by WordPress. In this case, users do not need to worry about installing a WordPress instance as they can simply access instances that are already available. WordPress.org, on the other hand, is the self-hosted option. It requires users to deploy their WordPress instances and requires some level of expertise to maintain.

Since WordPress.com is easier to start with, it may sound like the more desirable option. This SaaS version of WordPress, however, has many disadvantages over the self-hosted WordPress.org, such as the following:

  • It does not provide as many features as WordPress.org
  • It does not give users full control...