Download - Continous delivery with Jenkins and Chef

Continous delivery pipeline for Symfony2 projects with

Jenkins and ChefMichał Dąbrowski

http://github.com/defrag PHPers Kraków 10/07/2014

http://github.com/defrag

Most common anwser?

Most common anwser?

Should be done

„Continuous delivery (CD) is a set of processes, tools and techniques for the

rapid, reliable and continuous development and delivery of software.”

What is continous delivery?

Our highest priority is to satisfy the customer!

through early and continuous delivery!of valuable software.

Agile manifesto #1

done === released

What is done in Continous Delivery?

Why?increase quality

reduce cost reduct risk

make customer happy delivery production ready software

act on feedback

Quality comes first

Building blocks from practical viewContinous IntegrationRelease automation

Infrastructure automationMonitoring

CI & Deployment pipeline

Typical development workflow

Fork a repo


Submit pull request


Trigger build process on PR


Code review


Merge into master


Trigger build on master branch


Result of build is Release Candidate!(not every RC is deployed)

How do we get there?

Start with Jenkins

Create new project

Set up your build process

Set up your build process

<target name="configure"> <echo>Downloading dependencies using composer.</echo> <exec executable="/bin/bash" failonerror="true" dir=„."> <arg value="/usr/bin/composer install —no-interaction —prefer-dist" />! </exec> ! <echo>Dumping prod assets.</echo> <exec executable="/bin/bash" failonerror="true"> <arg value="-c" /> <arg value="${basedir}/bin/console assetic:dump --env=prod --no-debug" />! </exec> ! <echo>Ensuring empty cache and logs directories.</echo> <delete includeemptydirs="true" verbose="false" failonerror="true" dir="${basedir}/var/cache" />! <delete includeemptydirs="true" verbose="false" failonerror="true" dir="${basedir}/var/logs" />! <mkdir dir="${basedir}/var/cache" />! <mkdir dir="${basedir}/var/logs" /> </target>

Run your unit tests

Run your unit tests

<target name=„phpspec" description="Run tests with PHPSpec"> <exec executable="/bin/bash" failonerror="true"> <arg value="-c" /> <arg value="${basedir}/bin/phpspec run" /> </exec> </target>

<target name="build-unit"> <property file="build.ci.properties" /> <antcall target="phpspec" /> ! <antcall target="jasmine" /> <echo>Unit test build pass.</echo> </target>

Run your acceptance tests

Run your acceptance tests

<target name=„behat" description=„Run acceptance tests with Behat"> <exec executable="/bin/bash" failonerror="true"> <arg value="-c" /> <arg value="${basedir}/bin/behat —format progress" />! </exec> </target>

<target name="build-acceptance"> <property file="build.ci.properties" /> <antcall target="behat" /> ! <echo>Acceptance test build pass.</echo> </target>

Create package out of build result

• tarball!• rpm!• deb!• etc.

Create package out of build result

Visualize your process with build pipeline

Stop

Deploy time

Not only application

Deliver your configuration in automated fashion

Build pipeline revisited

manualauto

Quick Chef overview

Make jenkins talk to your chef server

knife ec2 server create!knife bootstrap!

knife ssh!…

Make jenkins talk to your chef server

Deploy appcapistrano, fabric, knife plugin etc

Chose the one that works for you

Dead simple with Fabric and pychef

@roles('web')!def deploy(): …


fab env:staging deploy:25


fab env:staging deploy:25

chef environment build no.

Wrapping up

Benefitsspeed of delivery

quality cost reduction

ability to respond to feedback quickly adapt to change

Thank you