Book Image

Modern DevOps Practices

By : Gaurav Agarwal
Book Image

Modern DevOps Practices

By: Gaurav Agarwal

Overview of this book

Containers have entirely changed how developers and end-users see applications as a whole. With this book, you'll learn all about containers, their architecture and benefits, and how to implement them within your development lifecycle. You'll discover how you can transition from the traditional world of virtual machines and adopt modern ways of using DevOps to ship a package of software continuously. Starting with a quick refresher on the core concepts of containers, you'll move on to study the architectural concepts to implement modern ways of application development. You'll cover topics around Docker, Kubernetes, Ansible, Terraform, Packer, and other similar tools that will help you to build a base. As you advance, the book covers the core elements of cloud integration (AWS ECS, GKE, and other CaaS services), continuous integration, and continuous delivery (GitHub actions, Jenkins, and Spinnaker) to help you understand the essence of container management and delivery. The later sections of the book will take you through container pipeline security and GitOps (Flux CD and Terraform). By the end of this DevOps book, you'll have learned best practices for automating your development lifecycle and making the most of containers, infrastructure automation, and CaaS, and be ready to develop applications using modern tools and techniques.
Table of Contents (19 chapters)
1
Section 1: Container Fundamentals and Best Practices
7
Section 2: Delivering Containers
15
Section 3: Modern DevOps with GitOps

Technical requirements

You will need an active AWS subscription for this chapter's exercises. Currently, AWS is offering a free tier for some products. You can sign up at https://aws.amazon.com/free. This chapter uses some paid services, but we will try to minimize how many we use as much as possible during the exercises.

You will also need to clone the following GitHub repository for some of the exercises:

https://github.com/PacktPublishing/Modern-DevOps-Practices.

Run the following command to clone the repository into your home directory. Then, cd into the ch9 directory to access the required resources:

$ git clone https://github.com/PacktPublishing/Modern-DevOps-\
Practices.git modern-devops $ cd modern-devops/ch9

As the repository contains files with placeholders, you will have to replace the <your_dockerhub_user> string with the your actual Docker Hub user. Use the following commands to substitute the placeholders.

$ find ./ -type f -exec sed -i -e...