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/

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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

3

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:

stephen.ritchie@excella.com

• LinkedIn:

http://www.linkedin.com/in/sritchie

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