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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Just one click!

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

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Fail Early,

Fail Fast,

Fail Often.

Continuous Integration

It is the practice of merging

all developer workspaces

with a shared mainline

several times a day.

6 http://en.wikipedia.org/wiki/Continuous_integration

Continuous What?

• Build

• Test – Unit tests, integration tests…

• Analysis

• Feedback

• Publish

• Deploy

• ... most tedious things!

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What To Be Integrated?

• People

• Code

• Environment

• Report

• Thought

• ... everything valuable!

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9 Why Developers <3 CI: A Guide to Loving Continuous Integration by Rebel Labs

http://zeroturnaround.com/rebellabs/why-developers-love-ci/

OR NOTIFY?

10 Jez Humble, David Farley, Continuous Delivery: Reliable Software Releases through Build, Test, and Deployment Automation,

2010, Addison-Wesly

11 Jez Humble, David Farley, Continuous Delivery: Reliable Software Releases through Build, Test, and Deployment Automation,

2010, Addison-Wesly

Ticket for CI

• SCM system

• Build scripts/tools

• Automated test cases

• Artifact repository

• Fast, highly available machines

• Open-minded members

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Power Tools

13 Why Developers <3 CI: A Guide to Loving Continuous Integration by Rebel Labs

http://zeroturnaround.com/rebellabs/why-developers-love-ci/

CI Servers Build Automation Tools Artifact Repositories Test Frameworks Code Analysis

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

Jenkins

Introducing to Butler with Bowtie:

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Personal Information

• Child of Kohsuke Kawaguchi (川口耕介)

• Renamed from Hudson

– Had cosmetic surgery at the same time

16 portrait before the surgery

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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Running Jenkins

• Download

– http://mirrors.jenkins-ci.org/war-stable/latest/jenkins.war

• Run

• Play around

– http://localhost:8080/

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java -jar jenkins.war [--httpPort=8080]

https://wiki.jenkins-ci.org/display/JENKINS/Starting+and+Accessing+Jenkins

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Built-in Plugins

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Work Behind Proxy

21 Is it really a part of Update Center?

Thanks Maven POM

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Just Tell Him What to Build

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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.

24 http://www.martinfowler.com/articles/continuousIntegration.html & Paul M. Duvall et al, Continuous Integration

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Action!

Jenkins++

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s/green/blue/g

• It's not for color blind users.

• It's all about (influenced by ):

• Green Balls Plugin – https://wiki.jenkins-ci.org/display/JENKINS/Green+Balls

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青 Cyan #00FFFF http://jenkins-ci.org/content/why-does-jenkins-have-blue-balls

• Gravatar - Globally Recognized Avatar

• Register your own avatar

– at https://en.gravatar.com/

• Easy identification easy

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Static Code Analyses

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• Checkstyle

• DRY

• FindBugs

• PMD

• Compiler Warnings

• Task Scanner

– TODO, FIXME, XXX...

Disk Usage

• Keep watching!

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CI Game

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• Go top!

Build Pipeline

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Extreme Feedback

33 Continuous Integration using Jenkins by Chris Shenton, http://koansys.com/tech/jenkins/jenkins-ci-pdf/view