Simplifying complexity with microservices - Remmelt Pit
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Transcript of Simplifying complexity with microservices - Remmelt Pit
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Remmelt [email protected]@remmelt_InfoWifiExt / 2015DeNieuweWereld
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simplifying complexitywith microservices
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conclusion
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microservicesare awesome
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since2003
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12,000auctions
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4,000,000listings
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~1M uniquevisitors/month
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not maintainable
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not agile
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no fun
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I like fun
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enter
microservices
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Loosely coupled service oriented architecture
with bounded contexts— Adrian Cockcroft
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Loosely coupled
Services do not need to be updated at the same time
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Loosely coupled
Services do not need to be updated at the same time
Bounded contexts
If you have to know too much about surrounding services than you don't have a bounded context1
1 See Eric Evans, Domain Driven Design
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µ?
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what did we do right?
— define contracts and stick to them
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what did we do right?
— define contracts and stick to them
— documentation of API
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what did we do right?
— define contracts and stick to them
— documentation of API
— no polyglot from the start
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what could we have done better?
— start small
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what could we have done better?
— start small
— onboarding ops
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Organizations which design systems ... are constrained to
produce designs which are copies of the communication structures
of these organizations— Melvin Conway (1968)
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what could we have done better?
— start small
— onboarding ops
— underestimated necessary culture change
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what could we have done better?
— start small
— onboarding ops
— underestimated necessary culture change
— architectural challenges
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why do it anyway?
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makes sense
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makes sense
— unix philosophy
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makes sense
— unix philosophy
— swap services
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makes sense
— unix philosophy
— swap services
— scale specific functionality
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cool factor
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RTFM
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ITFM(f?)
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Invent The Flippin' Manual2
2 https://www.youtube.com/watch?v=FArZxLj6DLk
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Martin Fowler
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innovation leads toproductivity and happiness
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Services with the guts on the outside
— Gartner
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continued growth
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conclusion
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microservicesare awesome
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Final words3
3 https://www.youtube.com/watch?v=Wk4Gu94R9ms&t=50s
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Links4
4 Essential reading/viewing:http://martinfowler.com/articles/microservices.htmlhttp://www.slideshare.net/adriancockcroft/goto-berlinhttp://blogs.gartner.com/gary-olliffe/2015/01/30/microservices-guts-on-the-outside/http://www.slideshare.net/lemiorhan/a-gentle-introduction-to-micro-services-from-theory-into-practicehttp://thenewstack.io/microservices-four-essential-checklists-getting-started/https://www.youtube.com/watch?v=Qr0sATj9IVc