Trust in DevOps

A talk from DevOpsDays Amsterdam 2013, about the concept of trust, and how to scale it beyond individuals. Video is at http://www.youtube.com/watch?v=UvmZwrdUTsI

Transcript

1. Trust In DevOps
   Sam Eaton
   @thesamoth
   

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2. Who is this guy and
   why should we trust
   anything he says?!
   

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3. What do don’t we
   mean by trust?
   

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4. Trust isn’t faith
   

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5. The Babel Fish is a dead giveaway
   

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6. Trust isn’t confidence
   

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7. Confidence is belief in someone’s
   competence
   

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8. Trust is belief in their honesty,
   fairness and benevolence
   

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9. Trust isn’t reliance
   

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10. You rely on objects and
    technology, but you
    don’t trust them
    

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13. What’s the point of
    trusting anything?
    • Trust provides 3 basic things in society*
    • Makes life predictable
    • Creates a sense of community
    • Makes it easier for people to work
    together
    *Barbara Misztal, Trust in Modern Societies: The Search for the Bases of Social Order, Polity Press,
    

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14. What’s the point of
    trusting anything?
    • Trust allows us to deal with uncertainty and
    risk
    • Trust deals with the tension between:
    • Confidence in what we know from
    everyday experience
    • Uncertainty of new possibilities
    

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15. What’s the point of
    trusting anything?
    • Trust is about the prediction of future
    behaviour
    • Of people
    • Of systems
    • Consistently making commitments and
    meeting them
    

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16. Trust between Dev and
    Ops
    

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17. Trust between DevOps
    and Management
    

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18. Trust is a two-way
    street
    

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19. The MonkeySphere
    

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20. Scaling trust with
    technology, tools and
    process
    

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21. Measure it
    

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22. Idempotency
    

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23. Immutability
    

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24. CI/CD
    

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25. Contracts
    

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26. Contracts
    

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27. http://youdevise.github.io/orc/
    contract.html
    

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28. How do we build trust?
    

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30. Trust is something we extend to
    others
    

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31. Trust that you will fail
    

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33. Recipes for wincake
    

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34. Start small
    • Early adopters
    • Proof of concept
    • Deliver first, then evangelise
    

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35. Remove surprises
    • Development should be on production-
    like environments
    • Testing should be with data as close to real
    as possible
    

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36. Fail early, fail often
    

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37. Retrospectives
    • Frequent
    • Not just for failures
    • Invite other teams!
    

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38. Flow
    •Eliminate bottlenecks due to
    trust
    •Don’t do things twice
    

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39. Consistency
    • Define expectations
    • Monitor and measure
    performance against
    expectations
    • Make changes repeatable
    

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40. Communication
    

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41. Honesty and Respect
    • Tell the truth
    • Don’t sugar coat
    • Respect others’ opinions
    • Respect others’ skills
    

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42. Visibility
    • IRC/other chat systems
    • Wikis
    • Avoid “hidden knowledge”
    

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43. Transparency
    

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44. Trust me, it’s over
    • Trust is about people and relationships
    • Trust needs scaling with tools, technology
    and process
    • Trust is fundamentally about how you
    manage risk to derive value
    • Does anyone trust me enough to lend me
    €50?
    

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45. Thanks
    • Yelp Engineering Blog
    http://engineeringblog.yelp.com/
    • Failcake recipes
    https://github.com/failcake/recipes
    • Contact me
    sam@fqdn.net, @thesamoth
    • We’re hiring!
    http://www.yelp.com/careers
    

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