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

Exercises

You learned a lot about Jenkins configuration throughout this chapter. To consolidate your knowledge, we recommend the following exercises on preparing Jenkins images and testing the Jenkins environment:

  1. Create Jenkins master and agent Docker images and use them to run a Jenkins infrastructure capable of building Ruby projects:
    1. Create the Jenkins master Dockerfile, which automatically installs the Docker plugin.
    2. Build the master image and run the Jenkins instance.
    3. Create the agent Dockerfile (suitable for the dynamic agent provisioning), which installs the Ruby interpreter.
    4. Build the agent image.
    5. Change the configuration in the Jenkins instance to use the agent image.
  2. Create a pipeline that runs a Ruby script printing Hello World from Ruby:
    1. Create a new pipeline.
    2. Use the following shell command to create the hello.rb script on the fly:

sh "echo \"puts 'Hello World from Ruby'\" > hello.rb"

  1. Add the command...