Continuous DeliveryApplied
Mike [email protected]@jmichaelmcgarrhttp://earlyandoften.wordpress.com http://www.meetup.com/DC-continuous-integration/
• J. Michael (Mike) McGarr
• 11 years as a consultant, Excella Consulting
• Founder of the DC Continuous Integration, Delivery, and Deployment Meetup
About Me
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…a set of practices and principles aimed at, building, testing, and releasing software faster and more frequently.
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Continuous Delivery is…
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“Our highest priority is to satisfy the customer through early and continuous delivery of valuable software.”
- First of the Twelve Principles behind the Agile Manifesto
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Quality or Speed
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“How long would it take your organization to deploy a change [to production] that involves just one single line of code? Do you do this on a repeatable, reliable basis?”
- Mary and Tom Poppendieck,Implementing Lean Software Development
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Cycle Time
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The Last Mile
Manual Deployments
Insufficient Configuration Management
Infrequent, Error Prone Deployments
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Stressful Releases
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Frequent Automated Deployments
http://flic.kr/p/29Ree
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Always Production Ready
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Agile
ConfigurationManagement
Continuous Integration Testing
Deployment Pipelines
Continuous Deployment
Deployment Automation
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Deployment Pipelines
http://www.fotopedia.com/users/chmehl
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Deployment Pipelines
A Deployment Pipeline is an automated manifestation of your process for getting software from version control into the hands of your users.
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Deployment Pipelines(aka Build Pipelines)
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Continuous what?
ContinuousDelivery
ContinuousDeployment
ContinuousIntegration
Where do I start?
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Understand your Process
http://www.michaelnygard.com/blog/2008/02/outrunning_your_headlights.html
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Understand your Organization
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Developers
http://flic.kr/p/5cK2
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Test Driven Development
http://reddevnews.com/articles/2007/11/01/testdriven-development-tdd.aspx
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Evolutionary Design
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Automate the Build
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Static Code Analysis
CheckStyle
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Technical Debt
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The Team
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Agile
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Continuous Integration
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Continuous Integration
Check-in Daily
Commit to Trunk
Automate the Build
Keep the Build Fast
Every Commit results in Build
Test in Clone of Production
Automate Deployment
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Testing
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Types of Tests
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Testing is not a Phase
http://flic.kr/p/6bcg
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Specification by Example
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Specification by Example
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Automated Performance Testing
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Configuration Management
Version Control
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Build Once, Deploy Many
Externalize Configuration
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ESCAPE Database
Artifact Repositories
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Traceability
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Versioning Numbers
Branch by Abstraction
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Deploying
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Deployment Pipelines(aka Build Pipelines)
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Build Pipeline in Jenkins
Code Deployments
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Version your Database
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Infrastructure as Code
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Puppet
Vagrant
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Monitoring (sucks)
https://github.com/monitoringsucks
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Continuous Deployment
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Contact Me
Mike McGarr
@jmichaelmcgarr
http://earlyandoften.wordpress.com
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Further Reading• Continuous Delivery: Reliable Software Releases through Build, Test
and Deployment Automation, by Jez Humble and David Farley - http://www.amazon.com/Continuous-Delivery-Deployment-Automation-Addison-Wesley/dp/0321601912
• Test Driven Development (TDD) – http://en.wikipedia.org/wiki/Test-driven_development
• Introducing BDD, by Dan North – http://dannorth.net/introducing-bdd/• Agile Manifesto – http://agilemanifesto.org/• Scrum – http://www.scrumalliance.org/learn_about_scrum• Continuous Integration, by Martin Fowler –
http://martinfowler.com/articles/continuousIntegration.html• Specification by Example, by Gojko Adzic -
http://specificationbyexample.com/• Build Pipelines -
http://www.magpiebrain.com/2009/12/13/a-brief-and-incomplete-history-of-build-pipelines/
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Further Reading• Maven Releases on Steriods, by Axel Fontaine –
http://www.axelfontaine.com/2011/01/maven-releases-on-steroids-adios.html
• What is in a Name? Usually a version number, actually., by James Betteley - http://jamesbetteley.wordpress.com/2011/07/07/what-is-in-a-name-usually-a-version-number-actually/
• Build Once, Deploy Many - http://earlyandoften.wordpress.com/2010/09/09/build-once-deploy-many/
• Evolutionary Design - http://martinfowler.com/articles/designDead.html• Continuous Deployment -
http://timothyfitz.wordpress.com/2009/02/08/continuous-deployment/ • Sonar’s Technical Debt Calculation -
http://www.sonarsource.org/evaluate-your-technical-debt-with-sonar/• Gherkin - https://github.com/cucumber/cucumber/wiki/Gherkin• Branch by Abstraction, by Paul Hammat -
http://paulhammant.com/blog/branch_by_abstraction.html
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Tools• Git - http://git-scm.com/• Subversion - http://subversion.tigris.org/• Mercurial - http://mercurial.selenic.com/• Rational ClearCase -
http://www-01.ibm.com/software/awdtools/clearcase/• Serena Dimensions CM -
http://www.serena.com/products/dimensions-cm/index.html• Ant - http://ant.apache.org/• Ivy - http://ant.apache.org/ivy/• Maven - http://maven.apache.org/• Gradle - http://gradle.org/• JUnit – http://www.junit.org/• Findbugs – http://findbugs.sourceforge.net/• PMD – http://pmd.sourceforge.net/• Checkstyle – http://checkstyle.sourceforge.net/
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Tools• Jenkins - http://jenkins-ci.org/• Jenkins Performance Plugin –
https://wiki.jenkins-ci.org/display/JENKINS/Performance+Plugin • Jenkins Build Pipeline Plugin -
https://wiki.jenkins-ci.org/display/JENKINS/Build+Pipeline+Plugin • Nexus – http://www.sonatype.org/nexus/• Artifactory – http://www.jfrog.com/products.php• Sonar – http://www.sonarsource.org/• Cucumber – http://cukes.info/• Liquibase – www.liquibase.org/ • Flyway – http://code.google.com/p/flyway/• Escape – http://code.google.com/p/escservesconfig/• Capistrano - https://github.com/capistrano/capistrano • Puppet – http://puppetlabs.com/• Chef – http://www.opscode.com/chef/• Vagrant – http://vagrantup.com/• JMeter – http://jmeter.apache.org/
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Tools• Nagios - http://www.nagios.org/• Logstash – http://logstash.net/ • StatsD – https://github.com/etsy/statsd • Ganglia – http://ganglia.sourceforge.net/ • Metrics – https://github.com/codahale/metrics • Graphite - http://graphite.wikidot.com/
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