Deploying with JRuby: Deliver Scalable Web Apps using the JVM

http://pragprog.com/book/jkdepj/deploying-with-jruby

Deploying with JRuby: Deliver Scalable Web Apps using the JVM
by Joe Kutner
Cover Image For Deploying with JRuby...
Code • Errata • Discussions
200 pages (est), 2012-08-15
ISBN: 978-1-93435-697-5
Progress • Releases

Deploy using the JVM’s high performance while building your apps in the language you love. JRuby is a fast, scalable, and powerful JVM language with all the benefits of a traditional Ruby environment. See how to consolidate the many moving parts of an MRI-based Ruby deployment onto a single JVM process. You’ll learn how to port a Rails application to JRuby, get it into production, and keep it running. Watch the video
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This title is currently available in Beta. Buy the eBook now, and you'll be able to download successive releases of the eBook as the authors add material and correct mistakes. You'll get the final eBook when the book is finished.

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About this Book

JRuby deployments have fewer moving parts and consume less memory than traditional Ruby deployments, but to deploy your apps on the JVM, you need to learn some new approaches. This book introduces you to three JRuby deployment strategies that will give you the performance and scalability you need while letting you use the language you love.

You’ll start by porting an existing application to JRuby, preparing the app to take advantage of the JVM platform. Then you’ll use Vagrant and Puppet to build a virtual production environment so you have a stable, reproducible place to explore JRuby deployment.

With your environment in place, you’ll experiment with simple JRuby deployment with Warbler as you package your Ruby web application into a single file you can deploy to a Java application server. Next you’ll set up the lightweight Trinidad web server to create a more flexible, modular deployment that fits more complex situations but still feels friendly and familiar to Ruby developers. You’ll switch to powering your app with TorqueBox, an all-in-one JRuby environment that includes built-in support for messaging, scheduling, and daemons—perfect for handling the “big jobs.” Then, you’ll set up a continuous integration environment with Jenkins so you can deploy like the pros.

Deploying with JRuby is the missing link between enjoying JRuby and using it in the real world to build high-performance, scalable applications.

Want to see how easy it is to do? Watch the video

What You Need:

To run the examples in this book, you’ll need a computer that can run the Java Virtual Machine.
Contents and Extracts

This book is currently in beta, so the contents and extracts will change as the book is developed.

Preface

    Getting Started with JRuby
        What Makes JRuby So Great? excerpt
        Introducing Warbler excerpt
        Preparing Twitalytics for JRuby
        Configuring Warbler for Twitalytics
        Wrapping Up
    Creating a Deployment Environment
        Creating a Virtual Server excerpt
        Provisioning with Puppet
        Packaging the Deployment Environment
        Using Alternative Platforms
        Wrapping Up
    Deploying an Archive File
        Provisioning a Server
        Installing Apache Tomcat
        Creating the Deployment Script
        Deploying to the Cloud
        Wrapping Up
    Creating a Trinidad Application
        What is Traditional Deployment
        Getting Started with Trinidad
        Adding Trinidad Extensions
        Alternatives to Trinidad
        Wrapping Up
    Deploying A Trinidad Application
        Provisioning a Server
        Installing Trinidad as a Service
        Hot Deploying with Capistrano
        Configuring Apache
        Alternative Deployment Strategies
        Wrapping Up
    Creating a TorqueBox Application
        What is an Application Server
        Getting Started with TorqueBox
        Creating a Deployment Descriptor
        Using the Management Console
        Scheduling a Recurring Job
        Creating a Long-Running Daemon
        Running Background Jobs
        Pushing to the Browser with Stomplets
        Testing a TorqueBox Application
        Wrapping Up
    Deploying a TorqueBox Application
    Clustering a TorqueBox Application
    Managing a JRuby Deployment
    Using a Continuous Integration Server