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Introduction to Cruisecontrol Agenda Benefits of Continuous Integration Success Factors Ø Introduction to CruiseControl * Change the marked fields if you are presenting these slides yourself. Refer to the overview and instructions for details. Joe Schmetzer* http://www.exubero.com/* This work is licensed under a Creative Commons Attribution-ShareAlike2.5 License. Resources YouTube clip as motivation: Every Build You Break Agenda Continuous Integration o Benefits of Continuous Integration o Success Factors o Successful Build Defined CruiseControl o What is CruiseControl? o How Does CruiseControl Work? o CruiseControl Demonstration Summary Questions Benefits of Continuous Integration Removes integration sessions Minimizes number of integration bugs o If you build and test your software once an hour, no problem is more than an hour old. Improves team work Delivers latest best build product Reduces the overall development cost by: o making it easier to find and fix problems o provides valuable and timely information, letting the development be managed more tightly. Resources Refer to the original article on CI by Martin Fowler and Matthew Foemmel: http://www.martinfowler.com/articles/continuousIntegration.html Mike Clark's "Dear Manager" articles at http://www.clarkware.com/cgi/blosxom/DearManager give further information about the return on investment. Success Factors Single source code repository Automated build scripts Automated tests Developers' discipline o Synchronise often o Don't break the build o When you break the build, fix it. Resources Refer to the original article on CI by Martin Fowler and Matthew Foemmel: http://www.martinfowler.com/articles/continuousIntegration.html Successful Build Defined All the latest sources are checked out of version control Every file is compiled from scratch The resulting files are linked and deployed for execution Suite of tests is run against the system If every test passes, then there is a successful build Resources Refer to the original article on CI by Martin Fowler and Matthew Foemmel: http://www.martinfowler.com/articles/continuousIntegration.html Agenda Continuous Integration o Benefits of Continuous Integration o Success Factors o Successful Build Defined CruiseControl o What is CruiseControl? o How Does CruiseControl Work? o CruiseControl Demonstration Summary Questions What is CruiseControl? (Part 1) Free and open source build scheduler Consists of two components: o Build loop (runs as a service/daemon) o Status Dashboard (runs as web application) Works with many version control systems (CVS, PVCS, Subversion, ClearCase, ...) Works with any build tool that produces parseable output (Ant, Maven, ...) Resources The CruiseControl home page: http://cruisecontrol.sourceforge.net/ What is CruiseControl? (Part 2) Cross platform (written in Java) Easily extensible: o Configuration easily extended by custom plugins o Well defined interfaces for version control systems, build tools and publishers Well supported: o Complete reference documentation o Active users mailing list o Numerous tutorials o "Pragmatic Project Automation" book by Mike Clark Resources The CruiseControl configuration reference: http://cruisecontrol.sourceforge.net/main/configxml.html The CruiseControl mailing lists: http://cruisecontrol.sourceforge.net/contact.html Tutorial - Getting Started With CruiseControl: http://confluence.public.thoughtworks.org/display/CC/Getting+Started+With+CruiseControl Pragmatic Project Automation book: http://www.pragmaticprogrammer.com/sk/auto/ Pragmatic Automation companion website: http://www.pragmaticautomation.com/cgi-bin/pragauto.cgi How Does CruiseControl Work? Developer checks work into version control CC polls version control If CC detects any changes, it... o triggers a build o captures logs and build artifacts . Examples: jar, war, javadoc, unit test report, code coverage report, code quality metrics o publishes results . Examples: send email, send instant message, turn on lava lamp Resources The CruiseControl home page: http://cruisecontrol.sourceforge.net/ CruiseControl Project Page CruiseControl Change Log CruiseControl Project Statistics Agenda Continuous Integration o Benefits of Continuous Integration o Success Factors o Successful Build Defined CruiseControl o What is CruiseControl? o How Does CruiseControl Work? o CruiseControl Demonstration Summary Questions Summary Nightly Builds is a best practice; Continuous Integration is better Automation reduces cost, improves feedback and leaves less room for manual error CruiseControl enables Continuous Integration Any Questions? Intro Design Agile Refactoring NoSQL DSL Delivery About Me ThoughtWorks Continuous Integration Continuous Integration is a software development practice where members of a team integrate their work frequently, usually each person integrates at least daily - leading to multiple integrations per day. Each integration is verified by an automated build (including test) to detect integration errors as quickly as possible. Many teams find that this approach leads to significantly reduced integration problems and allows a team to develop cohesive software more rapidly. This article is a quick overview of Continuous Integration summarizing the technique and its current usage. 01 May 2006 Martin Fowler Translations: Portuguese · Chinese ·Korean · French · Chinese · Czech · Find similar articles to this by looking at these tags: popular ·agile · delivery · extreme programming · continuous integration For more information on this, and related topics, take a look at my guide page for delivery. ThoughtWorks, my employer, offers consulting and support around Continuous Integration. The open source CruiseControl, the first continuous integration server, was originally created at ThoughtWorks. Recently ThoughtWorks Studios, our products group, has releasedGo - a new server for continuous integration and delivery. It supports parallel, deployment pipelines with multiple projects, a snazzy looking dashboard, and support for automated deployments. It's a commercial tool, but is free to use for small setups. Contents . Building a Feature with Continuous Integration . Practices of Continuous Integration . Maintain a Single Source Repository. Automate the Build . Make Your Build Self-Testing . Everyone Commits To the Mainline Every Day . Every Commit Should Build the Mainline on an Integration Machine . Keep the Build Fast . Test in a Clone of the Production Environment . Make it Easy for Anyone to Get the Latest Executable . Everyone can see what's happening . Automate Deployment . Benefits of Continuous Integration . Introducing Continuous Integration . Final Thoughts . Further Reading I vividly remember one of my first sightings of a large software project. I was taking a summer internship at a large English electronics company. My manager, part of the QA group, gave me a tour of a site and we entered a huge depressing warehouse stacked full with cubes. I was told that this project had been in development for a couple of years and was currently integrating, and had been integrating for several months. My guide told me that nobody really knew how long it would take to finish integrating. From this I learned a common story of software projects: integration is a long and unpredictable process. But this needn't be the way. Most projects done by my colleagues at ThoughtWorks, and by many others around the world, treat integration as a non-event. Any individual developer's work is only a few hours away from a shared project state and can be integrated back into that state in minutes. Any integration errors are found rapidly and can be fixed rapidly. This contrast isn't the result of an expensive and complex tool. The essence of it lies in the simple practice of everyone on the team integrating frequently, usually daily, against a controlled source code repository. The original article on Continuous Integrationdescribes our experiences as Matt helped put together continuous integration on a ThoughtWorks project in 2000. When I've described this practice to people, I commonly find two reactions: "it can't work (here)" and "doing it won't make much difference". What people find out as they try it is that it's much easier than it sounds, and that it makes a huge difference to development. Thus the third common reaction is "yes we do that - how could you live without it?" The term 'Continuous Integration' originated with the Extreme Programming development process, as one of its original twelve practices. When I started at ThoughtWorks, as a consultant, I encouraged the project I was working with to use the technique. Matthew Foemmel turned my vague exhortations into solid action and we saw the project go from rare and complex integrations to the non-event I described. Matthew and I wrote up our experience in the original version of this paper, which has been one of the most popular papers on my site. Although Continuous Integration is a practice that requires no particular tooling to deploy, we've found that it is useful to use a Continuous Integration server. The best known such server is CruiseControl, an open source tool originally built by several people at ThoughtWorks and now maintained by a wide community. Since then several other CI servers have appeared, both open source and commercial - including Cruise from ThoughtWorks Studios. Building a Feature with Continuous Integration The easiest way for me to explain what CI is and how it works is to show a quick example of how it works with the development of a small feature. Let's assume I have
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