Book Image

Jenkins Administrator's Guide

By : Calvin Sangbin Park, Lalit Adithya, Sam Gleske
Book Image

Jenkins Administrator's Guide

By: Calvin Sangbin Park, Lalit Adithya, Sam Gleske

Overview of this book

Jenkins is a renowned name among build and release CI/CD DevOps engineers because of its usefulness in automating builds, releases, and even operations. Despite its capabilities and popularity, it's not easy to scale Jenkins in a production environment. Jenkins Administrator's Guide will not only teach you how to set up a production-grade Jenkins instance from scratch, but also cover management and scaling strategies. This book will guide you through the steps for setting up a Jenkins instance on AWS and inside a corporate firewall, while discussing design choices and configuration options, such as TLS termination points and security policies. You’ll create CI/CD pipelines that are triggered through GitHub pull request events, and also understand the various Jenkinsfile syntax types to help you develop a build and release process unique to your requirements. For readers who are new to Amazon Web Services, the book has a dedicated chapter on AWS with screenshots. You’ll also get to grips with Jenkins Configuration as Code, disaster recovery, upgrading plans, removing bottlenecks, and more to help you manage and scale your Jenkins instance. By the end of this book, you’ll not only have a production-grade Jenkins instance with CI/CD pipelines in place, but also knowledge of best practices by industry experts.
Table of Contents (13 chapters)
12
Index

GitOps-Driven CI Pipeline with GitHub

With Jenkins up and running, it's time to create pipelines.

We will create two projects, an adder and a subtractor, then create users with varying permissions to understand the roles and permissions model. We will also create a static pipeline that compiles the code, runs unit tests, and generates a code coverage report.

Afterward, we will convert the static pipeline into a premerge CI pipeline that is triggered by GitHub pull requests (PRs). Building a trigger for AWS Jenkins is different from firewalled Jenkins due to network restrictions, so we'll cover both options in depth.

Once the build is complete, the original GitHub PR that triggered the build is updated with the result. We'll also configure the GitHub repository to require a successful premerge build for a merge.

In this chapter, we're going to cover the following main topics:

  • Project overview
  • Creating two sets of projects...