Book Image

Learn Helm

By : Andrew Block, Austin Dewey
Book Image

Learn Helm

By: Andrew Block, Austin Dewey

Overview of this book

Containerization is currently known to be one of the best ways to implement DevOps. While Docker introduced containers and changed the DevOps era, Google developed an extensive container orchestration system, Kubernetes, which is now considered the frontrunner in container orchestration. With the help of this book, you’ll explore the efficiency of managing applications running on Kubernetes using Helm. Starting with a short introduction to Helm and how it can benefit the entire container environment, you’ll then delve into the architectural aspects, in addition to learning about Helm charts and its use cases. You’ll understand how to write Helm charts in order to automate application deployment on Kubernetes. Focused on providing enterprise-ready patterns relating to Helm and automation, the book covers best practices for application development, delivery, and lifecycle management with Helm. By the end of this Kubernetes book, you will have learned how to leverage Helm to develop an enterprise pattern for application delivery.
Table of Contents (15 chapters)
Section 1: Introduction and Setup
Section 2: Helm Chart Development
Section 3: Adanced Deployment Patterns
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Chapter 1: Understanding Kubernetes and Helm

Here are some answers to the questions presented in this chapter:

  1. An application is monolithic if it contains all necessary logic and features in a single application. Monolithic applications can be broken up into multiple different applications, referred to as microservices.
  2. Kubernetes is a container orchestration tool. To give a few examples, it solves problems around workload scheduling, availability, and scalability.
  3. create, describe, edit, delete, and apply
  4. There are many different types of resources a user must understand in order to deploy an application. It is also challenging to maintain synchronized local and live states, manage application life cycle, and maintain boilerplate YAML resource files.
  5. Helm includes four life cycle commands that provide users with the ability to easily manage Kubernetes applications. Users apply these commands to interact with Helm charts, which is a packaging of the Kubernetes...