Microservices War Stories

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Blithe Rocher OSCON May 18, 2016 ` MICROSERVICES WAR STORIES

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@BLITHE

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MICROSERVICES So…

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A MONOLITH vs.

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MICROSERVICES

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WHY ARE MICROSERVICES SO POPULAR?

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INDEPENDENT DEPLOYMENT & SCALABILITY 1 REASON

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1 REASON

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1 REASON

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1 REASON

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1 REASON

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1 REASON

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1 REASON

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COMPARTMENTALIZE TEAMS & RESPONSIBILITIES 2 REASON

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TECHNICAL DESIGN FREEDOM 3 REASON

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FAULT TOLERANCE 4 REASON

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WHY ME?

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MAKING MISTAKES & LEARNING FROM THEM Experience

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STORY TIME

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SUPPORTING NEW CONTENT TYPE 1 STORY Story

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STORY: Supporting New Content Type

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STORY: Supporting New Content Type

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STORY: Supporting New Content Type

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CONTENT-TYPE: TEXT/HTML ☹ STORY: Supporting New Content Type

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STORY: Supporting New Content Type

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STORY: Supporting New Content Type

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STORY: Supporting New Content Type PROBLEM?

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STORY: Supporting New Content Type REMEDIES

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REMOVING A FEATURE FLAG 2 STORY Story

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UI Authorization Service STORY: Removing Feature Flags

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DELETING CODE Yay! STORY: Removing Feature Flags

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PROBLEM? STORY: Removing Feature Flags

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REMEDIES STORY: Removing Feature Flags

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TIGHTLY COUPLED SERVICES 3 STORY Story

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STORY: Tightly Coupled Services Microservice A Database Microservice B

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STORY: Tightly Coupled Services ALL THE WAY DOWN Headaches

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STORY: Tightly Coupled Services PRODUCTION

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STORY: Tightly Coupled Services Microservice A Database Microservice B

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STORY: Tightly Coupled Services Microservice A Database Microservice B

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STORY: Tightly Coupled Services Microservice A Database Microservice B

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STORY: Tightly Coupled Services DEVELOPMENT

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STORY: Tightly Coupled Services SERVICES NOT ISOLATED, ALL NEED TO BE RUNNING

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STORY: Tightly Coupled Services Microservice A Database Microservice B

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STORY: Tightly Coupled Services AUTOMATED TESTING

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STORY: Tightly Coupled Services Microservice A Database Microservice B

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STORY: Tightly Coupled Services VCR RECORDING Solution?

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STORY: Tightly Coupled Services API Responses - 1992

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STORY: Tightly Coupled Services VCR GEM STORY: Tightly Coupled Services

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STORY: Tightly Coupled Services PROBLEM?

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STORY: Tightly Coupled Services REMEDIES

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STORY: Tightly Coupled Services

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STORY: Tightly Coupled Services

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STORY: Tightly Coupled Services BUNDLE EXEC RAKE TEST:REAL

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STORY: Tightly Coupled Services BUNDLE EXEC RAKE TEST:MOCK

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STRING VS INTEGER 4 STORY Story

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STORY: String vs. Integer

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STORY: String vs. Integer

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STORY: String vs. Integer

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ONE ENDPOINT TO RULE THEM ALL STORY: String vs. Integer

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STORY: String vs. Integer

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STORY: String vs. Integer

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STORY: String vs. Integer

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STORY: String vs. Integer

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STORY: String vs. Integer

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STORY: String vs. Integer

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STORY: String vs. Integer

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STORY: String vs. Integer

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PROBLEM? STORY: String vs. Integer

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REMEDIES STORY: String vs. Integer

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SUMMARY & TAKE AWAYS

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THANKS! Questions? @Blithe

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