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

Summary

In this chapter, we've discussed Terraform's core and understood some of the most common commands and functionalities from a hands-on perspective. We started with understanding IaC, introduced Terraform as an IaC tool, installed Terraform, understood Terraform providers, and used the Azure Terraform provider to manage infrastructure in Azure.

We then looked at Terraform variables and multiple ways of supplying values to the variables. We discussed the core Terraform workflow, where we talked about several commands that you would use to manage infrastructure using Terraform. We then looked at Terraform state as an essential component that helps Terraform keep track of the infrastructure it is managing.

We looked at local and remote state storage and used Azure Blob Storage as the remote state backend. We then discussed Terraform workspaces and how they enable us to use the same Terraform configuration to build multiple environments with hands-on exercises.

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