This document provides an introduction to continuous integration with Jenkins. It discusses what continuous integration is, how it works using examples, and why Jenkins is a popular open-source continuous integration server. Continuous integration involves developers frequently integrating their work into a shared repository. This allows for multiple times a day integration to catch bugs early. The document then demonstrates how to use Jenkins for continuous integration on a Java project.

1. Introduction to Continuous
Integration with Jenkins

2. Agenda
• What is Continuous Integration?
• Why Jenkins?
• Use Jenkins on a Java project

3. Treat integration as a non-event
WHAT IS CONTINUOUS
INTEGRATION ?

4. Before CI
• Integration was a long and unpredictable
process
• Take more than several months for a project
developed in a couple of years

6. Origins

7. CI by Example
Mainline

8. CI by Example
Mainline
Working Copy

9. CI by Example
Clean
Verify
Package
Working Copy
Compile
Test

10. CI by Example
Mainline
Working Copy

11. CI by Example
Mainline
Working Copy
Working Copy

12. CI by Example
Mainline
Working Copy

13. CI by Example
Mainline
Working Copy

14. CI by Example
Clean
Verify
Package
Working Copy
Compile
Test

15. CI by Example
Mainline
Working Copy
CI Server

16. CI by Example
Mainline
Working Copy
CI Server

17. CI by Example
Clean
Verify
Package
Compile
Test
CI Server

18. CI by Example
Clean
Verify
Package
Compile
Test
CI Server

20. Questions ?

21. To serve you
WHY JENKINS ?

22. Jenkins Project
• Open-source CI server
• Easy to install and use
– jenkins.war
– Or the OS-specific packages
– Configure everything from the browser
• Extensible
– 400+ plugins by the community
– Easy to develop its own plugins

23. Jenkins Project
• Jenkins was originally Hudson
– First release in February 2005
• In January 2011, Hudson become Jenkins
– Hudson was a trademark of Sun and now of Oracle

24. Who use Jenkins ?

25. Who use Jenkins ?
CruiseControl,
168
TeamCity, 96 QuickBuild, 7
Bamboo, 178
Jenkins, 768
Hudson, 515
Number of Jobs on Dice.com

26. Some usage examples
USE JENKINS ON
JAVA PROJECTS

27. Demonstration

28. Questions ?

29. More resources
• The most famous article on the subject :
– http://www.martinfowler.com/articles/continuousIntegration.
html
• More information about XP :
– http://www.extremeprogramming.org/
• An introduction in video of Jenkins by its creator :
– http://vimeo.com/35678536
• http://jenkins-ci.org/