Chapter 1, Concepts of Continuous Integration, gives an account of how some of the most popular and widely used software development methodologies gave rise to Continuous Integration. This is followed by a detailed explanation of the various requirements and best practices to achieve Continuous Integration.

Chapter 2, Installing Jenkins, is a step-by-step guide all about installing Jenkins across various platforms, including Docker.

Chapter 3, The New Jenkins, provides an overview of how the new Jenkins 2.x looks and feels, with an in-depth explanation of its essential constituents. It also introduces readers to the new features added in Jenkins 2.x.

Chapter 4, Configuring Jenkins, focuses on accomplishing some basic Jenkins administration tasks.

Chapter 5, Distributed Builds, explores how to implement a build farm using Docker. It also talks about adding standalone machines as Jenkins slaves.

Chapter 6, Installing SonarQube and Artifactory, covers installing and configuring SonarQube and Artifactory for CI.

Chapter 7, Continuous Integration Using Jenkins, takes you through a Continuous Integration design and the means to achieve it using Jenkins, in collaboration with some other DevOps tools.

Chapter 8, Continuous Delivery Using Jenkins, outlines a Continuous Delivery design and the means to achieve it using Jenkins, in collaboration with some other DevOps tools.

Chapter 9, Continuous Deployment Using Jenkins, explains the difference between Continuous Delivery and Continuous Deployment. It also features a step-by-step guide to implementing Continuous Deployment using Jenkins.

Appendix, Supporting Tools and Installation Guide, takes you through the steps required to make your Jenkins server accessible over the internet and the installation guide for Git.

To be able to follow everything described in the book, you will need a machine with the following configurations:

This book is aimed at readers with little or no previous experience with Agile or Continuous Integration and Continuous Delivery. It serves as a great starting point for anyone who is new to this field and would like to leverage the benefits of Continuous Integration and Continuous Delivery to increase productivity and reduce delivery time.

Build and release engineers, DevOps engineers, (Software Configuration Management) SCM engineers, developers, testers, and project managers can all benefit from this book.

Readers who are already using Jenkins for Continuous Integration can learn to take their project to the next level, which is Continuous Delivery.

The current edition of the book is a complete reboot of its predecessor. Readers of the first edition can take advantage of some of the new stuff discussed in the current edition, such as Pipeline as Code, Multibranch Pipelines, Jenkins Blue Ocean, distributed build farms using Docker, and more.

In this book, you will find a number of text styles that distinguish between different kinds of information. Here are some examples of these styles and an explanation of their meaning. Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "This will download a .hpi file on your system."

A block of code is set as follows:

stage ('Performance Testing'){
    sh '''cd /opt/jmeter/bin/
    ./jmeter.sh -n -t $WORKSPACE/src/pt/Hello_World_Test_Plan.jmx -l
    $WORKSPACE/test_report.jtl''';
    step([$class: 'ArtifactArchiver', artifacts: '**/*.jtl'])
}

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

stage ('Performance Testing'){
    sh '''cd /opt/jmeter/bin/
    ./jmeter.sh -n -t $WORKSPACE/src/pt/Hello_World_Test_Plan.jmx -l
    $WORKSPACE/test_report.jtl''';
    step([$class: 'ArtifactArchiver', artifacts: '**/*.jtl'])
}

The extra "\" used in some of the commands is used to only indicate that the command continues in the next line. Any command-line input or output is written as follows:

   cd /tmp
   wget https://archive.apache.org/dist/tomcat/tomcat-8/ \
   v8.5.16/bin/apache-tomcat-8.5.16.tar.gz

New terms and important words are shown in bold. Words that you see on the screen, for example, in menus or dialog boxes, appear in the text like this: "From the Jenkins dashboard, click on the Manage Jenkins | Plugin Manager | Available tab."

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