Book Image

Learning DevOps

By : Mikael Krief
Book Image

Learning DevOps

By: Mikael Krief

Overview of this book

The implementation of DevOps processes requires the efficient use of various tools, and the choice of these tools is crucial for the sustainability of projects and collaboration between development (Dev) and operations (Ops). This book presents the different patterns and tools that you can use to provision and configure an infrastructure in the cloud. You'll begin by understanding DevOps culture, the application of DevOps in cloud infrastructure, provisioning with Terraform, configuration with Ansible, and image building with Packer. You'll then be taken through source code versioning with Git and the construction of a DevOps CI/CD pipeline using Jenkins, GitLab CI, and Azure Pipelines. This DevOps handbook will also guide you in containerizing and deploying your applications with Docker and Kubernetes. You'll learn how to reduce deployment downtime with blue-green deployment and the feature flags technique, and study DevOps practices for open source projects. Finally, you'll grasp some best practices for reducing the overall application lead time to ensure faster time to market. By the end of this book, you'll have built a solid foundation in DevOps, and developed the skills necessary to enhance a traditional software delivery process using modern software delivery tools and techniques
Table of Contents (23 chapters)
Free Chapter
1
Section 1: DevOps and Infrastructure as Code
6
Section 2: DevOps CI/CD Pipeline
9
Section 3: Containerized Applications with Docker and Kubernetes
12
Section 4: Testing Your Application
16
Section 5: Taking DevOps Further

Technical requirements

This chapter will explain how to use Terraform to provision an Azure infrastructure as an example of a cloud infrastructure, so you will need an Azure subscription, which you can get here for free: https://azure.microsoft.com/en-us/free/.

In addition, we will require a code editor to write the Terraform code. There are several editors out there, but I will be using Visual Studio Code, which is free, lightweight, and multiplatform and has several extensions for Terraform. You can download it from https://code.visualstudio.com/. The complete source code of this chapter is available here: https://github.com/PacktPublishing/Learning_DevOps/tree/master/CHAP02.

Check out the following video to see the Code in Action:
http://bit.ly/2MJs7TW