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DevOpsGuys

Devops, ITIL and Anti-Fragility - to Protect, or

to Serve?What is DevOps, how does it relate to ITSM/ITIL and where do the Borg fit in?

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Agenda

• What is DevOps?• Devops & ITIL• Fragile. Robust. Anti-Fragile. WTF?• Humpty Dumpty, Castles & the Borg• DevOps Transformation• Q&A

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Steve - @TheOpsMgr

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James- @TheDevMgr

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WHAT IS DEVOPS?And why should you care?

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Defining Devops I

“The term “DevOps” typically refers to the emerging professional movement that advocates a

collaborative working relationship between Development and IT

Operations, resulting in the fast flow of planned work (i.e., high deploy

rates)…” – Gene Kimhttp://itrevolution.com/11devops/

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He goes on to say

“…while simultaneously increasing the reliability,

stability, resilience and security of the production environment.”

– Gene Kim

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In Summary…

• Close Collaboration• Fast Flow of Work• Increased Reliability• Increased Stability• Increased Resilience• Increased Security

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Defining Devops II

“I’ll tell you EXACTLY what DevOps means.

DevOps means giving a sh*t about your job enough to not pass the buck. DevOps means giving a sh*t about your job enough to want to learn all the parts and not just your little world.Developers need to understand infrastructure. Operations people need to understand code.

- John E. Vincent (@Lusis)http://blog.lusis.org/blog/2013/06/04/devops-the-title-match/

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KEY ELEMENTS OF DEVOPS

Influences, key thinkers and the “3 Ways”

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DevOps influences

DevOpsAgile

Lean

DemingToyota (TPS)• Muri• Mura• Mudi• Kaizen

Goldratt ToC

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Some Key Thinkers

DevOpsJohn Allspaw (@Allspaw)

Jesse Robbins (@jesserobins)

Gene Kim

(@realgenekim)

Patrick DuBois (@patrickdubois)

Andrew Schafer (@littleidea)

Jez Humble (@jezhumble)

John Willis (@botchagalupe)

Damon Edwards (@damonedwards)

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“3 Ways” of DevOps

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Think about the System, focus on the end ValueOperations is the Customer…

The First Way

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Defining Devops II

“I’ll tell you EXACTLY what DevOps means.

DevOps means giving a sh*t about your job enough to not pass the buck. DevOps means giving a sh*t about your job enough to want to learn all the parts and not just your little world.Developers need to understand infrastructure. Operations people need to understand code.

- John E. Vincent (@Lusis)http://blog.lusis.org/blog/2013/06/04/devops-the-title-match/

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“Feedback Loops” = Continuous Service ImprovementCSI is a key enabler of DevOps

The Second Way

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Embrace ChangeBe willing to ExperimentLearn from your mistakes

The Third Way

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Breaking down Silos

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Products not Projects

"Delivery teams run software products

- not projects – that run from inception to retirement“

– Jez Humble, (Thoughtworks)

https://sites.google.com/a/jezhumble.net/devops-manifesto/

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Stop “throwing stuff over the wall”!

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What DevOps ISN’T

• Not a “free-for-all”• Not a return to the “pre-ITIL cowboys

days”• “Developers managing Production”– http://blog.devopsguys.com/2013/02/17

/devops-does-not-equal-developers-managing-production/

• 12 DevOps Anti-Patterns– http://blog.devopsguys.com/2013/02/20

/twelve-devops-anti-patterns/

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DEVOPS & ITILA difference in emphasis?

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DevOps & ITIL

• Seminal presentation by Rob England (aka @TheITSkeptic)– “Kamu: reconciling DevOps and ITSM/ITIL”– http://

www.slideshare.net/twohills/kamu-17019408

• 2 “Epiphany”– Protect vs Serve– Fragile, Robust & Anti-Fragile

• Via Jez Humble & Nicholas Taleb

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Fragile. Robust. Anti-Fragile

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Fragile. Robust. Anti-Fragile

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WTF?

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Fragile = Humpty Dumpty

http://thewritersguidetoepublishing.com/wp-content/uploads/2010/12/Humpty-Dumpty.jpg

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Robust = Castle

http://upload.wikimedia.org/wikipedia/commons/2/22/Bodiam_Castle_south.jpg

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What’s wrong with Robust?

• Robust is just Fragile with a thicker skin…

• Encourages a defensive, static mindset

• Resistant to change? • Vulnerable to “Black Swan” events…

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Castle “Black Swans”

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Shadow IT = Manoeuvre Warfare

“Gartner predicts that in less than three years, 35% of enterprise IT expenditures will happen outside of the corporate IT

budget.”

“results of PricewaterhouseCoopers' Digital IQ Survey indicate that at 100 of

the companies PwC ranks as "top performers," IT controls less than 50% of

corporate technology expenditures.”http://www.computerworld.com/s/article/9226415/The_Upside_of_Shadow_IT?pageNumber=1

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Anti-Fragile = Borg

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“You will be assimilated”

“Anti-fragile organisations seek out and embrace change – they are

inherently “outward-focused” and seek to be continually learning,

adapting and assimilating (not hiding behind the walls of their castle,

content in their robust impregnability).”

-TheOpsMgrhttp://blog.devopsguys.com/2013/07/17/devops-antifragility-and-the-borg-collective/

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“You will be assimilated”

“Likewise, DevOps seeks to be “anti-fragile” by embracing change (and disorder a la Chaos Monkey) whilst

incorporating feedback mechanisms (the “3rd Way” of DevOps) to ensure

that learning is correctly assimilated.”- TheOpsMgr

http://blog.devopsguys.com/2013/07/17/devops-antifragility-and-the-borg-collective/

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Embrace ChangeBe willing to ExperimentLearn from your mistakes

The Third Way

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Embrace Chaos!“One of the first systems our engineers built in AWS is called the Chaos Monkey. The Chaos Monkey’s job is to randomly kill instances and services within our architecture. If we aren’t constantly testing our ability to succeed despite failure, then it isn’t likely to work when it matters most – in the event of an unexpected outage.”

http://luckyrobot.com/netflix-chaos-monkey-keeps-movies-streaming/ http://www.codinghorror.com/blog/2011/04/working-with-the-chaos-monkey.html

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DEVOPS TRANSFORMATION

Culture, Automation, Lean, Metrics, Sharing… but mostly Culture!

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Make More Awesome

http://www.slideshare.net/jesserobbins/cloud-expo-jesserobbinsopscode20130129b

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Don’t fight Stupid…

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CALMS Model

• Hearts & Minds• Embrace ChangeCulture• “Continuous” CI/CD• “Infrastructure as Code”Automation• Focus on producing value for the end-user• Small batch sizesLean• Measure everything• Show the improvementMetrics• Open information sharing• CollaborationSharing

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DevOps Transformation

• Don’t attack the Silos– “Make more awesome”

• Use the CAMS framework & the 3 Ways as guiding principles

• Start small & iterate• Standard change management

practices… but remember culture, culture, culture!

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Thank You

operations | availability | performance | scalability | migration | strategy

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