This document provides an overview of continuous integration using Jenkins. It discusses topics like integrating code changes daily, automating builds and tests, using Jenkins plugins for static code analysis and artifact management, and best practices like fixing broken builds quickly and keeping the build fast. Jenkins is introduced as an open source automation server that supports continuous integration practices through features like built-in plugins, proxy configuration, and providing feedback to developers.

1. Continuous Integration
with Jenkins
中華電信研究院 黃培棠
beta@cht.com.tw
2013/03/14

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3. Just one click!
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4. TOP 10 BEST GODZILLA FILMS by Calum Waddell, http://www.scifinow.co.uk/top-tens/29950/top-10-best-godzilla-films/ 4

5. Fail Early,
Fail Fast,
Fail Often.
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6. Continuous Integration
It is the practice of merging
all developer workspaces
with a shared mainline
several times a day.
http://en.wikipedia.org/wiki/Continuous_integration 6

7. Continuous What?
• Build
• Test
– Unit tests, integration tests…
• Analysis
• Feedback
• Publish
• Deploy
• ... most tedious things!
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8. What To Be Integrated?
• People
• Code
• Environment
• Report
• Thought
• ... everything valuable!
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9. OR NOTIFY?
Why Developers <3 CI: A Guide to Loving Continuous Integration by Rebel Labs 9
http://zeroturnaround.com/rebellabs/why-developers-love-ci/

10. Jez Humble, David Farley, Continuous Delivery: Reliable Software Releases through Build, Test, and Deployment Automation, 10
2010, Addison-Wesly

11. Jez Humble, David Farley, Continuous Delivery: Reliable Software Releases through Build, Test, and Deployment Automation, 11
2010, Addison-Wesly

12. Ticket for CI
• SCM system
• Build scripts/tools
• Automated test cases
• Artifact repository
• Fast, highly available machines
• Open-minded members
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13. Power Tools
CI Servers Build Automation Tools Artifact Repositories Test Frameworks Code Analysis
Why Developers <3 CI: A Guide to Loving Continuous Integration by Rebel Labs 13
http://zeroturnaround.com/rebellabs/why-developers-love-ci/

14. Paul M. Duvall et al, Continuous Integration: Improving Software Quality and Reducing Risk, 2007, Addison-Wesley 14

15. Introducing to Butler with Bowtie:
Jenkins
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16. Personal Information
• Child of Kohsuke Kawaguchi (川口耕介)
• Renamed from Hudson
– Had cosmetic surgery at the same time
portrait before the surgery
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17. Skills
• 耐操、有擋頭
– 不遲到、不早退
– 不會亂吠
• 專心
– 不會上 facebook, YouTube
• 記性好
– 不會忘了改什麼設定，或忘了按 commit 就下班
• 便宜
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18. Running Jenkins
• Download
– http://mirrors.jenkins-ci.org/war-stable/latest/jenkins.war
• Run
java -jar jenkins.war [--httpPort=8080]
• Play around
– http://localhost:8080/
https://wiki.jenkins-ci.org/display/JENKINS/Starting+and+Accessing+Jenkins 18

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20. Built-in Plugins
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21. Work Behind Proxy
Is it really a part of Update Center? 21

22. Thanks Maven POM
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23. Just Tell Him What to Build
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24. CI Practices
• Everyone commits at least once a day.
• Keep the build fast.
– An unit test is just an UNIT test.
– Replace dependencies with mocks.
• 100% of tests must pass for every build.
• Fixing broken builds is of the highest priority.
• Someone review reports generated by the build.
http://www.martinfowler.com/articles/continuousIntegration.html & Paul M. Duvall et al, Continuous Integration 24

25. Action!
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26. Jenkins++
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27. s/green/blue/g
• It's not for color blind users.
• It's all about (influenced by ):
• Green Balls Plugin
青 Cyan #00FFFF
– https://wiki.jenkins-ci.org/display/JENKINS/Green+Balls
http://jenkins-ci.org/content/why-does-jenkins-have-blue-balls 27

28. • Gravatar - Globally Recognized Avatar
• Register your own avatar
– at https://en.gravatar.com/
• Easy identification easy
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29. Static Code Analyses
• Checkstyle
• DRY
• FindBugs
• PMD
• Compiler Warnings
• Task Scanner
– TODO, FIXME, XXX...
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30. Disk Usage
• Keep watching!
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31. CI Game
• Go top!
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32. Build Pipeline
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33. Extreme Feedback
Continuous Integration using Jenkins by Chris Shenton, http://koansys.com/tech/jenkins/jenkins-ci-pdf/view 33