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© 2016 Mesosphere, Inc. All Rights Reserved. MICROSERVICES ARE SO 2015, WHAT’S NEXT? 1 Michael Hausenblas, Developer & Cloud Advocate | Microservices Manchester | 2016-07-05

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© 2016 Mesosphere, Inc. All Rights Reserved. THE PAST 2

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© 2016 Mesosphere, Inc. All Rights Reserved. ON THE ORIGINS OF MICROSERVICES 3

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© 2016 Mesosphere, Inc. All Rights Reserved. ON THE ORIGINS OF MICROSERVICES 4 do one thing and that well ls cat dd mv cp nc ps cd sort wc grep w file stat ifconfig

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© 2016 Mesosphere, Inc. All Rights Reserved. ON THE ORIGINS OF MICROSERVICES 5 composability ls | grep ‘^s’ | sort -r

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© 2016 Mesosphere, Inc. All Rights Reserved. ON THE ORIGINS OF MICROSERVICES 6 http://martinfowler.com/articles/microservices.html

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© 2016 Mesosphere, Inc. All Rights Reserved. ON THE ORIGINS OF MICROSERVICES 7 yours truly, 2015

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© 2016 Mesosphere, Inc. All Rights Reserved. THE PRESENT 8

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© 2016 Mesosphere, Inc. All Rights Reserved. BREAKING DOWN THE MONOLITH 9 By User:Skookum1 - Self-photographed, Public Domain, https://commons.wikimedia.org/w/index.php?curid=22515997

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© 2016 Mesosphere, Inc. All Rights Reserved. BREAKING DOWN THE MONOLITH 10 By Bartledan (talk), based on a file by User:Foofy - I created this work based on en:File:Overview_of_a_three-tier_application.png, Public Domain, https://commons.wikimedia.org/w/index.php?curid=6907222

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© 2016 Mesosphere, Inc. All Rights Reserved. TOOLING VS. CULTURE 11 • Should I be using gRPC rather than HTTP? • Are protocol buffers a better choice than JSON?* • Containers, containers, containers! *) http://blog.codeclimate.com/blog/2014/06/05/choose-protocol-buffers/

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© 2016 Mesosphere, Inc. All Rights Reserved. TOOLING VS. CULTURE 12 https://github.com/mhausenblas/marvin

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© 2015 Mesosphere, Inc. All Rights Reserved. TOOLING VS. CULTURE 13

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© 2016 Mesosphere, Inc. All Rights Reserved. CASE STUDY 14 https://dev.otto.de/2015/09/30/on-monoliths-and-microservices/

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© 2016 Mesosphere, Inc. All Rights Reserved. LESSONS LEARNED 15 microservices are distributed systems* 1. The network is reliable. 2. Latency is zero. 3. Bandwidth is infinite. 4. The network is secure. 5. Topology doesn't change. 6. There is one administrator. 7. Transport cost is zero. 8. The network is homogeneous. *) https://en.wikipedia.org/wiki/Fallacies_of_distributed_computing

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© 2016 Mesosphere, Inc. All Rights Reserved. LESSONS LEARNED 16 • design team-first • polyglot is good, but: hiring • debugging/tracing (remember? µS are distributed systems) • logging (shipping, retention, auditing) • monitoring—instrumentation is a must! • resilience testing (chaos monkey et al)

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© 2016 Mesosphere, Inc. All Rights Reserved. LESSONS LEARNED 17

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© 2016 Mesosphere, Inc. All Rights Reserved. THE FUTURE 18

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© 2016 Mesosphere, Inc. All Rights Reserved. A SPECTRUM OF COMPUTE STYLES 19 serverless AWS Lambda, IFTTT function PaaS Heroku objects µS Docker
 with Marathon container monolith traditional
 3 tier machine

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© 2016 Mesosphere, Inc. All Rights Reserved. A SPECTRUM OF COMPUTE STYLES 20 serverless PaaS µS monolith agility

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© 2016 Mesosphere, Inc. All Rights Reserved. A SPECTRUM OF COMPUTE STYLES 21 maintenance serverless PaaS µS monolith

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© 2016 Mesosphere, Inc. All Rights Reserved. A SPECTRUM OF COMPUTE STYLES 22 cost/unit serverless PaaS µS monolith

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© 2016 Mesosphere, Inc. All Rights Reserved. SERVERLESS CONCEPT 23 • Unit of compute: a function • Dynamically allocated resources for execution • Integration with other systems is crucial (trigger, routing, storage, etc.) λ C

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© 2016 Mesosphere, Inc. All Rights Reserved. AWS LAMBDA 24 https://aws.amazon.com/lambda/

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© 2016 Mesosphere, Inc. All Rights Reserved. AZURE FUNCTIONS 25 https://azure.microsoft.com/en-us/documentation/articles/functions-overview/

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© 2016 Mesosphere, Inc. All Rights Reserved. GOOGLE CLOUD FUNCTIONS 26 https://cloud.google.com/functions/docs/

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© 2016 Mesosphere, Inc. All Rights Reserved. WEBTASK 27 https://webtask.io/

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© 2016 Mesosphere, Inc. All Rights Reserved. IRON.IO 28 https://www.iron.io

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© 2016 Mesosphere, Inc. All Rights Reserved. APPLICATION AREAS 29 • Jobs (typically short-running) • Constraints devices (IoT) • Event-driven logic • Mobile (stateless) apps

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© 2016 Mesosphere, Inc. All Rights Reserved. A WORD OF CAUTION 30

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© 2016 Mesosphere, Inc. All Rights Reserved. Q & A 31 • @mhausenblas • mhausenblas.info • michael@dcos.io https://dcos.io