1.
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
Stephen D. Ritchie
@RuthlessHelp
Oct 21, 2014
Agile Professionals Meetup
October 2014

2.
Live Tweet, Slides and Examples
• Twitter: @RuthlessHelp
• Slides:
http://www.slideshare.net/ruthlesshelp
• Code Samples:
http://github.com/ruthlesshelp
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3.
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/
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4.
DevOps Defined
• Operations and Development Folks
– Working together
– Entire lifecycle
• Change in Mindset
– Values
– Principles
– Methods
– Practices
– Tools
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5.
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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6.
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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7.
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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8.
Autonomy
Mastery
Purpose
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9.
The Problem
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Source
Code
1 3 2
9
Scott’s
Computer
Susan’s
Computer
You
1
2
3
Scott makes changes
Susan makes changes
You can’t build

10.
What Went Wrong?
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Conflicts
Missing Files
Breaking Changes

11.
How do you
find
integration
issues?
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12.
Manual Integration
Build
Run Some Unit Tests
Perform Static Analysis
Clean + Rebuild All
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13.
Continuous Integration Blueprint
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14.
CI Server
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Source
Code
14
Scott’s
Computer
Susan’s
Computer
You
CI
Server

15.
CI Server
Triggered by SCM
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and
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16.
CI – Per Commit Steps
1. Clean + Rebuild All
2. Run All Unit Tests
3. Analysis
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Static Code Analysis
Coding Standards
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17.
Continuous Integration Toolbox
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18.
CI Server – Jenkins
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http://jenkins-ci.org/
Free
Open Source

19.
CI Server – Cruise Control
http://www.cruisecontrolnet.org/
Free
Open Source
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http://cruisecontrol.sourceforge.net/
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20.
CI Server – TeamCity
http://www.jetbrains.com/teamcity/
Commercial
Easy to Use
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21.
Perhaps an
example would
be helpful
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22.
Continuous Integration Master Craft
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23.
The Master Craft
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Unit Testing
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Plus
Code Coverage

24.
The Master Craft
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System Testing
Integration Testing
Acceptance Testing
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25.
The Master Craft
Visualizations
Checks
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Code Quality
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Metrics
Detections
Analysis

26.
The Master Craft
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Reporting
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And
Visibility

27.
The Master Craft
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Packaging
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And
Deployment

28.
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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29.
Stephen’s Contact Info
• Email:
stephen.ritchie@excella.com
• LinkedIn:
http://www.linkedin.com/in/sritchie
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