Extending Jenkins

Key Features

  • Find out find out how to have interaction with Jenkins from inside Eclipse, NetBeans, and IntelliJ IDEA
  • Develop customized recommendations that act upon Jenkins details in genuine time
  • A step by step, functional consultant that will help you know about extension issues in current plugins and the way to construct your individual plugin

Book Description

Jenkins CI is the major open resource non-stop integration server. it truly is written in Java and has a wealth of plugins to aid the development and checking out of almost any undertaking. Jenkins helps a number of software program Configuration administration instruments similar to Git, Subversion, and Mercurial.

This e-book explores and explains the numerous extension issues and customizations that Jenkins deals its clients, and teaches you ways to increase your individual Jenkins extensions and plugins.

First, you'll how one can adapt Jenkins and leverage its talents to empower DevOps, non-stop Integration, non-stop Deployment, and Agile tasks. subsequent, you can find out tips to decrease the price of smooth software program improvement, elevate the standard of deliveries, and thereby lessen the time to industry. we'll additionally train you the way to create your personal customized plugins utilizing Extension points.

Finally, we'll assist you mix every thing you discovered over the process the ebook into one real-world scenario.

What you'll learn

  • Retrieve and act upon Jenkins details in genuine time
  • Find out the best way to engage with Jenkins via various IDEs
  • Develop your individual shape and enter validation and customization
  • Explore how Extension issues paintings, and enhance your personal Jenkins plugin
  • See easy methods to use the Jenkins API and command-line interface
  • Get to grasp the right way to remotely replace your Jenkins configuration
  • Design and boost your personal info Radiator
  • Discover how Jenkins customization will help increase caliber and decrease costs

About the Author

Donald Simpson is a knowledge know-how advisor dependent in Scotland, UK.

He makes a speciality of aiding firms enhance the standard and decrease the price of software program improvement during the adoption of technique automation and Agile methodologies.

Starting out as a Java developer, Donald's curiosity in program servers, networking, and automation led him to a occupation as a construct engineer. He continues to be hugely technical and hands-on and enjoys studying approximately new applied sciences and discovering how one can automate and increase handbook processes.

He may be reached at www.donaldsimpson.co.uk.

Table of Contents

  1. Preparatory Steps
  2. Automating the Jenkins UI
  3. Jenkins and the IDE
  4. The API and the CLI
  5. Extension Points
  6. Developing your personal Jenkins Plugin
  7. Extending Jenkins Plugins
  8. Testing and Debugging Jenkins Plugins
  9. Putting issues Together

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Rather than rolling your individual, you may as a substitute supply to collaborate at the improvement of this new plugin. the outcome of this collaboration is prone to produce a favored and fine quality product than builders making a related performance. it is also attainable that you're going to discover a overwhelming majority of the performance that you're looking already on hand inside a similar plugin, and with a bit info and collaboration, you will be capable of leverage this so as to add a brand new characteristic by means of reusing a lot of the prevailing code. All of this collaboration, code reuse, and enhancement are completed mostly by utilizing Extension issues, which characterize a few point of the performance of both a plugin or of Jenkins. those are interfaces and summary periods that allow interplay and reuse among assorted plugins and the Jenkins center performance via declared and publicized access issues that supply and practice providers to a documented agreement. we are going to now take a short examine the idea in the back of those principles in order that after we write our personal plugin, we'll comprehend what's going behind the curtain and why we're doing issues with this reuse and extension in brain from the beginning. Interfaces Interfaces in Java are the mechanisms used to supply and claim a freelance that defines tips on how to engage with and reuse an present software program. the most notion in the back of this process is that it eliminates the requirement of figuring out how issues are performed internally; you simply want to know what the necessary enter parameters can be and what to anticipate by means of calling an interface. precisely what the interior workings of the code are and the way the processing is completed aren't relatively vital, and so long as you adhere to the declared agreement, every thing could be okay. one other significant good thing about this "design by way of agreement" process is that it reduces the impression of code and procedure updates on exterior clients. for instance, if you happen to name an upload interface on a category referred to as calculator that takes numbers and returns the outcome, you (as a shopper of this carrier) do not have to understand or care how the addition is done—internally, the category can be easily including the 2 Java integers jointly, or even the enter variables are being omitted to an online provider within the cloud someplace, which returns the reply again to the calculator. The code and the technique used should be thoroughly redesigned and rewritten in anyway the builders of the calculator wish, yet so long as every body sticks to the agreed agreement and interface, exterior shoppers shouldn't be affected. This clearly-defined interface additionally makes it more uncomplicated to put in writing automatic regression checks. in case you be aware of there's a clearly-defined and strong interface, it is often uncomplicated to write down checks opposed to it that may not require a lot upkeep, because the interface isn't really regularly prone to be replaced. those exams might be instantly rerun as a part of the CI construct at any time when there's a similar code swap, and any discrepancy may be simply pointed out.

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