Download - DevOps Requires Agility
Stephen D. Ritchie – Managing Consultant – Excella Consulting, Inc., 2300 Wilson Blvd, Suite 630, Arlington, VA 22201 – 703.840.8600 – http://excella.com
DevOps Requires Agility
Stephen D. Ritchie@RuthlessHelp
Oct 21, 2014
Agile Professionals MeetupOctober 2014
Stephen D. Ritchie
Live Tweet, Slides and Examples
• Twitter: @RuthlessHelp
• Slides:
http://www.slideshare.net/ruthlesshelp
• Code Samples:
http://github.com/ruthlesshelp
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DevOps is the practice of operations and development engineers
participating together in the entire service lifecycle, from design
through the development process to production support.
http://theagileadmin.com/what-is-devops/
Stephen D. Ritchie
DevOps Defined
• Operations and Development Folks
– Working together
– Entire lifecycle
• Change in Mindset
– Values
– Principles
– Methods
– Practices
– Tools
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Example: Etsy
• Overview, June 2012
– Launched June 18, 2005
– 875,000 active sellers
– 33.5 million items for sale
– $65.9 million in sales, May 2012
– 1.4 billion page views, May 2012
– 102 engineers
• How often do they release to Production?
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Etsy Deployments
• Reported February 2011“In January (a month in which we did over a billion page views), code committed by 76 unique individuals was deployed to production by 63 different folks a total of 517 times.”
• Reported June 2012– 32 times per day
• Reported March 2014– 50 times per day
– http://www.infoq.com/news/2014/03/etsy-deploy-50-times-a-day
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Let’s Step Back
• Dan Pink
– Drive: The surprising truth about what
motivates us
• RSA Animate video
– https://www.youtube.com/watch?v=u6XAPnuF
jJc
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AutonomyMasteryPurpose
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The Problem
SourceCode
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Scott’sComputer
Susan’sComputer
You
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2
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Scott makes changes
Susan makes changes
You can’t build
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What Went Wrong?
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Conflicts
Missing Files
Breaking Changes
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How do youfind
integrationissues?
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Manual Integration
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Build
Run Some Unit Tests
Perform Static Analysis
Clean + Rebuild All
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Continuous Integration Blueprint
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CI Server
SourceCode
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Scott’sComputer
Susan’sComputer
You
CIServer
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CI Server
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Triggered by SCMand
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CI – Per Commit Steps
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1. Clean + Rebuild All
2. Run All Unit Tests
Coding Standards
3. AnalysisStatic Code Analysis
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Continuous Integration Toolbox
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CI Server – Jenkins
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http://jenkins-ci.org/
Free
Open Source
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CI Server – Cruise Control
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http://cruisecontrol.sourceforge.net/
Free
Open Source
http://www.cruisecontrolnet.org/
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CI Server – TeamCity
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Commercial
Easy to Use
http://www.jetbrains.com/teamcity/
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Perhaps an example would
be helpful
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Continuous Integration Master Craft
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The Master Craft
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Unit TestingPlus
Code Coverage
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The Master Craft
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Integration Testing
System Testing
Acceptance Testing
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The Master Craft
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Code Quality
Metrics
Visualizations
Detections
Checks
Analysis
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The Master Craft
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ReportingAnd
Visibility
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The Master Craft
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PackagingAnd
Deployment
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Closing Thought: CAMS
• Culture
– People and process first
– Virtuous discipline
• Automation
– Dev: building, testing, analyzing, packaging, deploying
– Ops: release management, provisioning, configuration management,
systems integration, monitoring and control, and orchestration
• Measurement
– Measure everything you can as often as you can
– Visibility and transparency
• Sharing
– Openness, share ideas and problems
– Confront problems, not each other
– Fail your way to success
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Stephen’s Contact Info
• Email:
• LinkedIn:
http://www.linkedin.com/in/sritchie
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