Book Image

Continuous Delivery with Docker and Jenkins, 3rd Edition - Third Edition

By : Rafał Leszko
Book Image

Continuous Delivery with Docker and Jenkins, 3rd Edition - Third Edition

By: Rafał Leszko

Overview of this book

This updated third edition of Continuous Delivery with Docker and Jenkins will explain the advantages of combining Jenkins and Docker to improve the continuous integration and delivery process of app development. You’ll start by setting up a Docker server and configuring Jenkins on it. Next, you’ll discover steps for building applications and microservices on Dockerfiles and integrating them with Jenkins using continuous delivery processes such as continuous integration, automated acceptance testing, configuration management, and Infrastructure as Code. Moving ahead, you'll learn how to ensure quick application deployment with Docker containers, along with scaling Jenkins using Kubernetes. Later, you’ll explore how to deploy applications using Docker images and test them with Jenkins. Toward the concluding chapters, the book will focus on missing parts of the CD pipeline, such as the environments and infrastructure, application versioning, and non-functional testing. By the end of this continuous integration and continuous delivery book, you’ll have gained the skills you need to enhance the DevOps workflow by integrating the functionalities of Docker and Jenkins.
Table of Contents (16 chapters)
1
Section 1 – Setting Up the Environment
5
Section 2 – Architecting and Testing an Application
9
Section 3 – Deploying an Application

Jenkins – Hello World

Everything in the entire IT world starts with the Hello World example, to show that the basics work fine. Let's follow this rule and use it to create the first Jenkins pipeline:

  1. Click on New Item:

Figure 3.2 – New Item in the Jenkins web interface

  1. Enter hello world as the item name, choose Pipeline, and click on OK:

Figure 3.3 – A new pipeline in the Jenkins web interface

  1. There are a lot of options. We will skip them for now and go directly to the Pipeline section:

Figure 3.4 – Pipeline script in the Jenkins web interface

  1. Then, in the Script textbox, we can enter the pipeline script:
    pipeline {
         agent any
         stages {
              stage("Hello") {
      ...