DevOps at Five Michael T. Nygard - Cognitect How Did We Get Here? - - PowerPoint PPT Presentation

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DevOps at Five Michael T. Nygard - Cognitect How Did We Get Here? - - PowerPoint PPT Presentation

Jul 21, 2023 255 likes •800 views

DevOps at Five Michael T. Nygard - Cognitect How Did We Get Here? 2009 - Patrick Debois http://github.com/jedi4ever @patrickdebois but... many antecedents Predecessor When Agile Infrastructure mid-2000s Infrastructure

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DevOps at Five

Michael T. Nygard - Cognitect

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How Did We Get Here?

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2009 - Patrick Debois

http://github.com/jedi4ever @patrickdebois

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but...

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… many antecedents

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Predecessor When “Agile Infrastructure” mid-2000’s “Infrastructure as Code” early-2000’s Infrastructure 2.0 early-2000’s cfengine

(Mark Burgess, @markburgess_osl )

1993 (!)

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My Own Journey

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Developer in Ops-land

✤ Wrote code to monitor internals ✤ Production module structure ✤ Version control configs ✤ Operator decompiling Java code

to find bugs

✤ Ranting to developers about

importance of production ops

“Release It! Design and Deploy Production-Ready Software”, 2007

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What is this thing we’re doing?

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Web Ops? High velocity operations? Agile Operations?

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DevOps

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DevOps?

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John Willis - The Demings of DevOps

@botchagalupe

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CAMS

✤ Culture ✤ Automation ✤ Measurement ✤ Sharing

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Culture

✤ Fast feedback ✤ Direct connections ✤ Data-based communication ✤ Collaborative, low-ceremony ✤ Enablement, not self-protection

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Sound familiar?

✤ Simplicity ✤ Communication ✤ Feedback ✤ Respect ✤ Courage

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Automation

✤ Lightweight tools, readiness to discard or change tools ✤ Open-source bias ✤ Automate for leverage to change ✤ Embrace & adopt “developer” tools ✤ Source control ✤ Code-based configuration

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Measurement

✤ Measure everything ✤ Number of pizzas ordered by dev teams ✤ Could be a leading indicator for turnover

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Sharing

✤ Share information ✤ Share power ✤ Share knowledge

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Donella Meadows – Leverage Points in a System

12.Constants, parameters, numbers …

  • 8. Strength of negative feedback loops
  • 7. Gain around driving positive feedback loops
  • 6. Structure of information flows
  • 5. Rules of the system

…

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You will never teach yourself out of a job.

– Me

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John Allspaw – Patron Saint of Ops

@allspaw

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Allspaw Opens Our Eyes

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Human Factors and System Safety

✤ People are part of the system ✤ Beware failure-inducing systems, unruly technology ✤ Blameless post-mortems

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Jez Humble – Continuous Delivery

@jezhumble

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✤ Patterns for deliverying

software value

✤ Deployment and more ✤ Integrating value stream

Continuous Delivery

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Users Ops QA Dev Stakeholders

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Users Ops QA Dev Stakeholders

Agile Development

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Users Ops QA Dev Stakeholders

Agile Development DevOps

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DevOps

CAMS

MS

Human Factors CD Agile Values

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Where Are We Now?

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Area Grade Deployment A- Provisioning B Logging A+ Monitoring A+ Anomaly Detection C System Comprehension D+

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Antifragility –

Systems That Improve From Randomness

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Antifragility –

Systems That Improve From Randomness

✤ Deployments == downtime ✤ More deployments -> resilience to partial failure

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Development is Production

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Statistical Sophistication

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Effective Web Experimentation as a Homo Narrens

Dan McKinley
 @mcfunley http://mcfunley.com/effective-web-experimentation-as-a-homo-narrans

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Some Cautions

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CIO VP, Operations Mgr, DevOps VP, Development

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Problems Yet To Solve

✤ The Paradox of Automation

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Seller Strategy Pricing profnath Price arbitrage 99.8% of highest observed bordeebook Reputation arbitrage 127% of highest observed

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Process

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Feedback Input Output

First-Order Cybernetics

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Second-Order Cybernetics

Process

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Feedback Input Output Engineer Observations Structure, Goals

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Third-Order Cybernetics

Process

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Feedback Input Output Engineer Observations Structure, Goals Environment Deliberate & Unintended Consequences Constraints, Costs Influences

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Where Does This Apply?

✤ Systems Managing Systems ✤ Autoscaling ✤ Deployment ✤ Spot pricing ✤ Anomaly detection

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Problems Yet To Solve

✤ The Paradox of Automation ✤ Legacy Organizations

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Legacy Orgs

✤ ITIL ✤ Separation of Duties ✤ Managerial antagonism ✤ History of distrust & blame ✤ IT under threat from Cloud Computing as well

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What is Next?

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Beware Dilution

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Keep the Faith

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Don’t Fight Stupid,
 Make More Awesome

Jesse Robbins
 @jesserobbins

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Thanks!

Michael T. Nygard Cognitect

  • mtnygard@cognitect.com

@mtnygard