Jenkins is an open source continuous integration tool that monitors builds, publishes results, and provides build history. It is written in Java and can be easily installed and run. Jenkins has over 400 plugins that provide additional functionality like support for version control systems, distributed builds across multiple machines, cloud integration, and more. It aims to reduce wasted time from broken builds by notifying developers quickly when issues occur through continuous monitoring and automated testing.

1. Jenkins
Juri Timoshin @

2. Continuous Integration Tool
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Monitors
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Builds
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Publishes results
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History, Weather
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Transparency

3. Alternatives
60%
50%
40%
30%
20%
10%
%
Jenkins/Hudson TeamCity Bamboo CruiseControl

4. Open Source Project
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Author: Kohsuke Kawaguchi
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Community driven
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http://jenkins-ci.org
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Easy to install/start
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java -jar jenkins.war
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Packages for every OS available
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Extensible - 400+ plugins
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Active
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~7 years old, ~400 releases, ~250 committers

5. Why?
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Life without Jenkins
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Commit breaks build – you learn it from colleague
in an hour
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Autotests nightly send emails, nobody reads them
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Long turnarounds, much time is wasted
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Life with Jenkins
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Commit breaks build – you learn it in <5 mins
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Autotests finished in 30 mins, send email only if
broken
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Almost , less wasted time

6. Distributed Builds
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Different environments, Isolation
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Master
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Stores all the important info
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Slave
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Single jar
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Good scaling

7. Slaves
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Labels
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Allow grouping/dividing slaves by their attributes
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(win || linux) && 32bit && !fedora
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Automated Tool Installations

8. Slaves
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Labels
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Allow grouping/dividing slaves by their attributes
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(win || linux) && 32bit && !fedora
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Automated Tool Installations Chef!
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Builds are sticky
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Quicker checkout, consistent build
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Slave monitoring
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Low space, clock out of sync...

9. Job Types
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Maven
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Only for maven
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Free Style
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For any project: java, ruby, python, C#...
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Matrix
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For very similar builds that only slightly differ

10. Cloud and Matrix Plugins
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Cloud/WM Support
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Amazon EC2 plugin
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VMWare plugin
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VirtualBox plugin
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Matrix Builds Enhancement
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Matrix Reloaded plugin

11. SCM Plugins
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Subversion, CVS plugins are bundled with
Jenkins
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Mercurial plugin
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Git plugin
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Bazaar and more...
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Multiple SCMs plugin

12. Build Pipeline Plugins
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Copy Artifact plugin
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Parametrized Trigger plugin
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Join plugin
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Downstream Buildview plugin
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Build Pipeline plugin

13. Misc Plugins
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Additional text/html files, logs
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HTML Publisher plugin
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Isolation
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Throttle Concurrent Builds plugin

14. Fun Plugins
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Green Balls plugin
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ChuckNorris plugin
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Meme Generator plugin
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Beer plugin
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and much much more

15. Thank You
Questions?