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

Scalable Jenkins on Kubernetes with Kaniko

Jenkins is the most popular CI tool available in the market. It is open source, simple to install, and runs with ease. It is a Java-based tool with a plugin-based architecture designed to support several integrations, such as with a source code management tool such as Git, SVN, and Mercurial, or with popular artifact repositories such as Nexus and Artifactory. It also integrates well with well-known build tools such as Ant, Maven, and Gradle, aside from the standard shell scripting and windows batch file executions.

Jenkins follows a master-agent model. Though technically, you can run all your builds on the master machine itself, it makes sense to offload your CI builds to other machines in your network so as to have a distributed architecture. That does not overload your master machine. You can use it simply to store the build configurations and other management data and manage the entire CI Build cluster, something along the lines of...