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

CI with AWS Code Commit and Code Build

AWS Code Commit is a Git repository, while Code Build, on the other hand, is a CI tool. Both are SaaS products offered by AWS. If you exclusively run on AWS and don't have a future multi-cloud roadmap, using these products can quickly get you started with your CI.

For this section, you will need an active AWS subscription to follow the exercises. Currently, AWS is offering a free tier on some products. You can sign up at https://aws.amazon.com/free. This chapter uses some paid services, but we will minimize the amount as much as possible.

Once you've created your account, install the AWS CLI: https://docs.aws.amazon.com/cli/latest/userguide/install-cliv1.html.

To access the resources for this section, run the following command:

cd ~/modern-devops/ch10/codebuild

Then, configure the following environment variables to get started:

$ export AWS_ACCESS_KEY_ID=[YOUR_AWS_ACCESS_KEY_ID]
$ export AWS_SECRET_ACCESS_KEY=[YOUR_AWS_SECRET_ACCESS_KEY...