Supermondays: Jenkins CI lightning talk

Jenkins Continuous Integration
A quick overview of Jenkins CI
Michael Peacock@michaelpeacockmichaelpeacock.co.uk

Continuous What?
Automated build and test process to verify a software / website / web app build
Quality Assurance applied continually during development
continuous integration (CI) implements continuous processes of applying quality control — small pieces of effort, applied frequently. Continuous integration aims to improve the quality of software, and to reduce the time taken to deliver it, by replacing the traditional practice of applying quality control after completing all development.*
* http://en.wikipedia.org/wiki/Continuous_integration

Jenkins!

Jenkins...
Built with Java
Provides its own web based interface – doesn’t interfere with your Apache installation
Recommendation: install Continuous Integration stuff on a separate server – processing lots of builds could get resource intensive
Available for Windows, Mac and Linux

Installation
Add the Jenkins repository key to aptitude
wget -q -O - http://pkg.jenkins-ci.org/debian/jenkins-ci.org.key | sudo apt-key add –
Add the repository to your sources file
sudo nano /etc/apt/sources.list
deb http://pkg.jenkins-ci.org/debian binary/
sudo apt-get update
Install
sudo apt-get install jenkins

Modular

Works with version control systems
SVN
Git
Mercurial
CVS

Ant
Should be familiar to Java programmers...
Makes it really easy to:
Move, copy, delete, rename files and folders – use it to move files around after checking out from version control e.g. Swap in a test config file
Run commands / programs on the code – such as unit testing, code sniffing and generating documentation
Built in to Jenkins out of the box

Testing
Automatically run your unit tests
Find a plugin
Get ant to run your tests by executing commands
Build fails if tests fail
<target name="phpunit" description="Run unit tests using PHPUnit and generates junit.xml and clover.xml"> <exec executable="phpunit" failonerror="true"/> </target>
<target name="phpunit" description="Run unit tests using PHPUnit and generates junit.xml and clover.xml"> <exec executable="phpunit" failonerror="true"/> </target>
<target name="phpunit" description="Run unit tests using PHPUnit and generates results as XML files"> <exec executable="phpunit" failonerror="true"/> </target>

http://www.buildsonmymachine.com/

Weather Report

You broke the build
Stigmatises breaking the build
Helps “encourage” / bully developers into better quality work

http://www.youbrokethebuild.com/

Record keeping
What changed in the build?

Pipeline
Chain Jenkins jobs together, triggering others (e.g. deployment) only when the first job builds successfully, ensures only tested and quality code goes online
https://wiki.jenkins-ci.org/display/JENKINS/Build+Pipeline+Plugin
(no screenshots, because I couldn’t get it to work  )

Deployment
Plug Jenkins into your deployment process
Copy files over FTP
Copy files over SSH
Execute commands on a remote server
Tell the web server that the new site has been copied across and is ready for use

Improve
Improve the quality of your code
Automate your:
Testing
Quality Assurance process
Deployment to development areas
Deployment to live environment (through pipeline)
Keep clients happier!

Any questions?
http://jenkins-ci.org/
http://bit.ly/jenkinsciphp
Michael Peacock
@michaelpeacock
www.michaelpeacock.co.uk

Supermondays: Jenkins CI lightning talk

by Michael Peacock

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