Continues Integration

Continues Integration Johan Aludden Twitter: johanaludden Mail: me@johanaludden.com Blog: johanaludden.com/weblog

What is Continues Integration? • Compile continuously • Test continuously • Prepare installation continuously • Measure quality continuously • Create documentation continuously 2

Components • Developers • Version Control Repository • CI server • Build script • Feedback • Integration Build Machine 3

Developers • Makes Changes to code • Runs a private Build • Commits changes 4

Version Control Repository • Central point of truth • Good Practice • History • CVS, SVN, Perforce, Git 5

CI server • Checks for changes • Retrieves changes • Runs build script(s) • Dashboard 6

Build Script • Automated • Complete • Launched from Command line 7

Feedback • Email • Instant messaging • SMS • RSS • Sounds • Monitor 8

Integration Build Machine • Dedicated • The reference 9

Beneﬁts • Risk reduction • Less repetition • Generate Deployable Software • Increase Visibility • More Conﬁdence 10

Excuses • Increasing maintenance • Too much change • Frequently failed builds • Additional cost • Should already be made 11

First steps • Centralized repository • Compile code • Package binaries • Add testing • Add inspections 12

Common Problems • Long build time • Frequently failed builds • To much information • Many target platforms 13

Long build time • Make it faster • Split and run in Parallell • Split and run in Sequence 14

Frequently failed builds • Are all committed? • Can the devs run on local machine? • Code to fragile? • Tests to fragile? 15

To much information • Is all information necessary • What information can be removed • Multiple source of information • Pull not push • Visualize information 16

Many target platforms • One CI server per platform • Compile code • Package binaries 17

Pipelines • Jobs – Runs in Parallell • Stages – Runs in sequence – contains 1 or more jobs 18

Pipeline 19

Pipeline Stage 19

Pipeline Stage Job Job 19

Pipeline Stage Stage Job Job Job Job 19

Pipeline Stage Stage Stage Job Job Job Job Job 19

Pipeline Stage Stage Stage Job Job Job Job Job 20

CI servers • CruiseControl • Hudson • Cruise • Bamboo 21

Links • Martin Fowler (http://martinfowler.com/articles/continuousIntegration.html) • Book (http://www.amazon.com/Continuous-Integration-Improving-Software- Reducing/dp/0321336380) • CruiseControl (http://cruisecontrol.sourceforge.net/) • Hudson (https://hudson.dev.java.net/) • WikiPedia (http://en.wikipedia.org/wiki/Continuous_integration/) 22

Questions? 23

Continues Integration

by Johan Aludden on Dec 10, 2009

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Continues Integration — Presentation Transcript