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10 Tips for failing at microservices
The document provides "10 Tips for failing badly at Microservices". It is a presentation given by David Schmitz with tips on how to sabotage a microservices project if your boss wants you to modernize your systems. Some of the tips include going full polyglot with many technologies, having all microservices share the same database or event store, building your own frameworks and tools instead of using existing ones, treating infrastructure as an afterthought, and prioritizing hiring for buzzword technologies over architectural quality. The overall tone is humorous, presenting anti-patterns and bad practices to intentionally undermine a microservices project.
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10 Tips for failing at microservices
- 1. @koenighotze#Voxxed #10TipsMicroservices 10 Tipsfor failing badly at Microservices David Schmitz Senacor Technologies
- 2. #VoxxedVienna #10TipsMicroservices @koenighotze DavidSchmitz / @koenighotze Senacor Technologies Principal Architect Programmer That’s me coding EJBs
- 3. #VoxxedVienna #10TipsMicroservices @koenighotze Disclaimer Thisis not YOU! Opinions are my OWN!TM
- 4. #VoxxedVienna #10TipsMicroservices @koenighotze What’sin it for you? Your boss want’s to modernise, but you don’t Things to do to sabotage your project Lessons learned the hard way Things have been anonymised to protect the guilty
- 5. #VoxxedVienna #10TipsMicroservices @koenighotze TheBoss read about microservices?
- 6. #VoxxedVienna #10TipsMicroservices @koenighotze Extremeagile cloud native digital microservices! Disrupt or be disrupted! Sounds good. And cloud and agile equal good?!? Industry 4.0! FTW!
- 7. #VoxxedVienna #10TipsMicroservices @koenighotze “ITPeople! Make it happen! Build me some microservices”
- 8. #VoxxedVienna #10TipsMicroservices @koenighotze Whatthe hell is a microservice and why should I care?
- 9. #VoxxedVienna #10TipsMicroservices @koenighotze MicroservicesIMHO Single Bounded Context UI and Services Independent Self-Contained Local storage Share nothing User Interface Services Persistence Operations
- 10. #VoxxedVienna #10TipsMicroservices @koenighotze Whatever!BLAH BLAH User Interface Services Persistence Operations Too lazy to actually read all this stuff…looks boring and I want to look at funny cat pics.
- 11. #VoxxedVienna #10TipsMicroservices @koenighotze SabotageExtravaganza Follow these
- 12. #VoxxedVienna #10TipsMicroservices @koenighotze SabotageExtravaganza 10 9 8 7 6 5 4 3 2 1 Direction of Awesomeness
- 13. #VoxxedVienna #10TipsMicroservices @koenighotze 10- Go Full-Scale-Polyglot
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- 16. #VoxxedVienna #10TipsMicroservices @koenighotze Technicalknowledge - Excitement Groundhog Code - Redevelop solutions Maintenance field trips Heisenberg monitoring & Ops The Zoo of Technology
- 17. #VoxxedVienna #10TipsMicroservices @koenighotze Jumpthe Bandwagon $ npm ls | grep @0 ui-demo@0.1.0 │ ├─┬ fbjs@0.8.8 │ │ │ ├─┬ encoding@0.1.12 │ │ │ │ └── iconv-lite@0.4.15 │ │ └── ua-parser-js@0.7.12 ├─┬ react-scripts@0.8.5 │ │ ├── normalize-range@0.1.2 │ │ │ │ └── json5@0.5.1 │ │ │ └── source-map-support@0.4.11 │ │ │ └── regenerator-runtime@0.10.1 │ │ │ └── ms@0.7.2
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- 20. #VoxxedVienna #10TipsMicroservices @koenighotze Freedomis a human right Everybody loves a puzzle - REST, HAL, SIREN Find new friends while searching for fixes on Stackoverflow Synergies: Polyglot UI with beta status Keep ops on their toes by multi-monitoring and logging (easy win -> Date format!)
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- 22. #VoxxedVienna #10TipsMicroservices @koenighotze 9- The data monolith (c) Disney Corporation
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- 24. #VoxxedVienna #10TipsMicroservices @koenighotze Mumsaid we should share Credit Account Payment Giant SQL Datastore
- 25. #VoxxedVienna #10TipsMicroservices @koenighotze Mumsaid we should share Credit Account Payment
- 26. #VoxxedVienna #10TipsMicroservices @koenighotze Namemust be VARCHAR(200) instead of VARCHAR(50)
- 27. #VoxxedVienna #10TipsMicroservices @koenighotze Accounttable changes Credit Account Payment
- 28. #VoxxedVienna #10TipsMicroservices @koenighotze CreditAccount Payment Boom
- 29. #VoxxedVienna #10TipsMicroservices @koenighotze Sharingis a Good ThingTM All microservices must share the database Avoid table or schema ownership Insidious dependencies, e.g. Connection pools keep everybody awake at night
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- 31. #VoxxedVienna #10TipsMicroservices @koenighotze 8- The event monolith
- 32. #VoxxedVienna #10TipsMicroservices @koenighotze MarketingPitch Customer Homeaddress Updated Credit acquired New Customer Created … Direction of Time Customer Credit Event Store
- 33. #VoxxedVienna #10TipsMicroservices @koenighotze EventsourcingMarketing Pitch Audit trail - Immutable history for free Distributed data management Decoupled microservices with CQRS …and much more!
- 34. #VoxxedVienna #10TipsMicroservices @koenighotze ‘Dasschöne Österreich’ will no longer be accepted as a country code
- 35. #VoxxedVienna #10TipsMicroservices @koenighotze WETis the new DRY Country: “AU” Country: “Das schöne Österreich” … Direction of Time Customer Credit Event Store
- 36. #VoxxedVienna #10TipsMicroservices @koenighotze Don’tchange messy past events Don’t come up with a data strategy Copy and Paste compensation actions Event history as bugfixes Dont’t need it? Play the “We might become google or linkedin!” card
- 37. #VoxxedVienna #10TipsMicroservices @koenighotze 7- The Home Grown monolith
- 38. #VoxxedVienna #10TipsMicroservices @koenighotze –Carl Sagan (slightly paraphrased) “If you wish to make MICROSERVICES from scratch, you must first create a FRAMEWORK” Wrapping up
- 39. #VoxxedVienna #10TipsMicroservices @koenighotze Homemade Eventsourcing { "type": "NewCustomerCreated", "id": 1234, "payload": { } } { "type": "NewCustomerCreated", "id": 1234, "payload": { } } CustomerAccount Reporting ES V1 ES V1 ES V1
- 40. #VoxxedVienna #10TipsMicroservices @koenighotze Thecustomer system needs special, non-numeric ids
- 41. #VoxxedVienna #10TipsMicroservices @koenighotze Versionincrease Customer V2 { "type": "NewCustomerCreated", "id": "1234-5678", "payload": { ... } } ES 2
- 42. #VoxxedVienna #10TipsMicroservices @koenighotze Runtimesurprise Customer V2Account Reporting ES V1 ES V1ES 2 { "type": "NewCustomerCreated", "id": "1234-5678", "payload": { ... } }
- 43. #VoxxedVienna #10TipsMicroservices @koenighotze Changethe world event Customer V2Account V2 Reporting V2 ES V2 ES V2ES 2
- 44. #VoxxedVienna #10TipsMicroservices @koenighotze MicroservicePromise Customer Account Reporting Independent release
- 45. #VoxxedVienna #10TipsMicroservices @koenighotze MonolithicRelease Plan Customer Account Reporting Common Release
- 46. #VoxxedVienna #10TipsMicroservices @koenighotze Cross-cuttingdependencies as social tools Job insurance via invasive frameworks Building frameworks is fun! Try it! Ideas: Collections, String-Utils, Logging, ORM!
- 47. #VoxxedVienna #10TipsMicroservices @koenighotze 6- Think of the meat cloud
- 48. #VoxxedVienna #10TipsMicroservices @koenighotze WK P T Optimise your Revenue!
- 49. #VoxxedVienna #10TipsMicroservices @koenighotze WhoKNOWS how to do it?K P T Optimise your Revenue! Who WANTS it to be done? Who has the required PRIVILEGES? Who has TIME to actually do it?
- 50. #VoxxedVienna #10TipsMicroservices @koenighotze Insight:CD is very useful Delivery pipeline Production
- 51. #VoxxedVienna #10TipsMicroservices @koenighotze Andthe rest of the world? Delivery pipeline Production … Handcrafted with love Soulless automation
- 52. #VoxxedVienna #10TipsMicroservices @koenighotze W Quickly…releasea new Customer microservice K P T
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- 54. #VoxxedVienna #10TipsMicroservices @koenighotze OpsToolchain - Vi all the way! P T W K P T
- 55. #VoxxedVienna #10TipsMicroservices @koenighotze OpsToolchain - Vi all the way! P T W K P T
- 56. #VoxxedVienna #10TipsMicroservices @koenighotze ProdStatus - Illustration
- 57. #VoxxedVienna #10TipsMicroservices @koenighotze Infrastructureis expensive…be proud to take care of it Microsoft Word is some kind of automation Play the “we are not google” card If someone asks, say you are using Docker
- 58. #VoxxedVienna #10TipsMicroservices @koenighotze 5- The distributed monolith
- 59. #VoxxedVienna #10TipsMicroservices @koenighotze Friendsstay close together Customer AccountCredit Security
- 60. #VoxxedVienna #10TipsMicroservices @koenighotze Let’soffer a discount to new users
- 61. #VoxxedVienna #10TipsMicroservices @koenighotze TheMusketeer Pattern Customer AccountCredit Security
- 62. #VoxxedVienna #10TipsMicroservices @koenighotze Combinethe complexity of a microservice architecture with the rigidity and fragility of a monolith
- 63. #VoxxedVienna #10TipsMicroservices @koenighotze Thenetwork is reliable Dependencies indicate good design, like in Dependency Injection Synchronous dependencies are easy What is half a system good for, anyway? So avoid Circuit breakers
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- 65. #VoxxedVienna #10TipsMicroservices @koenighotze 4- The SPA monolith
- 66. #VoxxedVienna #10TipsMicroservices @koenighotze Microis REST only Customer REST Credit RESTAccount REST Giant Monster UI
- 67. #VoxxedVienna #10TipsMicroservices @koenighotze Adda mandatory social-number field to the customer
- 68. #VoxxedVienna #10TipsMicroservices @koenighotze Butnot that mandatory. E.g. if the customer is not committed, yet
- 69. #VoxxedVienna #10TipsMicroservices @koenighotze Noclear responsibility Customer Domain Credit DomainAccount Domain Comprehensive UI Domain Model
- 70. #VoxxedVienna #10TipsMicroservices @koenighotze Domainis spread around Customer REST Credit RESTAccount REST
- 71. #VoxxedVienna #10TipsMicroservices @koenighotze Ach,just put it there Room available
- 72. #VoxxedVienna #10TipsMicroservices @koenighotze Meetpeople while discussion ownership and conflicting features Keep the testers busy with side effects Single point of failure -> Easy to find
- 73. #VoxxedVienna #10TipsMicroservices @koenighotze Byall means, avoid composition CreditCustomer Account Tailor.JS / Project Mosaic
- 74. #VoxxedVienna #10TipsMicroservices @koenighotze …andavoid Hyperlinks! CreditCustomer Account
- 75. #VoxxedVienna #10TipsMicroservices @koenighotze 3- The decision monolith
- 76. #VoxxedVienna #10TipsMicroservices @koenighotze “Butwe need Java 7…it is 2017 after all!”
- 77. #VoxxedVienna #10TipsMicroservices @koenighotze Thesieve of sanity Architecture & Design Sieve
- 78. #VoxxedVienna #10TipsMicroservices @koenighotze Thesieve of sanity Agile Rx Microservice Actors Augmented realityCloud AWS WebRTC IoT Blockchain
- 79. #VoxxedVienna #10TipsMicroservices @koenighotze Thesieve of sanity Agile Rx Microservice Actors Augmented realityCloud AWS WebRTC IoT Blockchain Architecture & Design Sieve
- 80. #VoxxedVienna #10TipsMicroservices @koenighotze Thesieve of sanity JEE WebSphere Agile Rx Microservice Actors Augmented realityCloud AWS WebRTC IoT Blockchain Architecture & Design Sieve
- 81. #VoxxedVienna #10TipsMicroservices @koenighotze …workson larger scale, too Architecture & Design Sieve Customer AccountCredit Security
- 82. #VoxxedVienna #10TipsMicroservices @koenighotze Frustrateyour coworkers Irritate motivated colleagues If you are older than 30…play the “This is _real_ enterprise, kid” card Ivory towers are beautiful Assume people are dumb, and you are smart
- 83. #VoxxedVienna #10TipsMicroservices @koenighotze 2 Themonolithic business
- 84. #VoxxedVienna #10TipsMicroservices @koenighotze MSis for Devs only Credit Account Payment … … … Branch Office Toolset Something
- 85. #VoxxedVienna #10TipsMicroservices @koenighotze Let’sforce the user to always enter a valid address
- 86. #VoxxedVienna #10TipsMicroservices @koenighotze No,the customer should be able to enter partial addresses
- 87. #VoxxedVienna #10TipsMicroservices @koenighotze RequirementsPing Pong Credit Account Payment Branch Office Toolset Something ?????
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- 91. #VoxxedVienna #10TipsMicroservices @koenighotze Slowmeans more time for Twitter! The servant of many kings is a free man Change / Requirement Mgmt. are your allies Business people don’t know Eric Evans Conway’s law works both ways
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- 93. #VoxxedVienna #10TipsMicroservices @koenighotze 1- Use a HR driven Architecture
- 94. #VoxxedVienna #10TipsMicroservices @koenighotze Itis easier to search for React developers than for general craftswomen
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- 96. #VoxxedVienna #10TipsMicroservices @koenighotze MagicSpecification Success Template
- 97. #VoxxedVienna #10TipsMicroservices @koenighotze FrontendMicroservice Service Microservice Persistence Microservice
- 98. #VoxxedVienna #10TipsMicroservices @koenighotze FrontendMicroservice Service Microservice Persistence Microservice Shared stability Shared release Convoluted domains
- 99.
- 100. #VoxxedVienna #10TipsMicroservices @koenighotze Programmersdo not like other people Avoid spread of knowledge Business knows the domain. Devs know tech Nobody should have a big picture, keep them in the dark Meetings mean coffee and biscuits
- 101. #VoxxedVienna #10TipsMicroservices @koenighotze And:In case of bugs… It’s always the other team’s fault! And: In case of bugs… It’s always the other team’s fault!
- 102.
- 103. #VoxxedVienna #10TipsMicroservices @koenighotze Thekey to failure is the hidden monolith
- 104. #VoxxedVienna #10TipsMicroservices @koenighotze Thehidden monolith Data Frontend Framework Deployment and Release Process
- 105.
- 106. #VoxxedVienna #10TipsMicroservices @koenighotze Summary MSmean Work - Fight them Greenfield != Brownfield - The perfect excuse Think of the organisational impact. You do not want to change! Embrace the monolith Microservices are a fad. Wait for SOAP 4.0 Dont’t underestimate the power of broken windows
- 107. #VoxxedVienna #10TipsMicroservices @koenighotze Thankyou! Questions? Thank you!
- 108.