Devoxx UK 2016 - Building microservices with Vert.x
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This document summarizes a presentation about building microservices with Vert.x. Vert.x is a toolkit for building reactive applications on the JVM that is well-suited for microservices due to its event-driven and distributed nature. The presentation covers the basics of Vert.x, demonstrates examples, discusses how to structure microservices as small, independent modules, and shares lessons learned from 3 years of using Vert.x at an educational publishing company.
Devoxx UK 2016 - Building microservices with Vert.x
- 1. #vertx @bjschrijver Building microservices with Vert.x Bert Jan Schrijver @bjschrijver bertjan@jpoint.nl
- 2. #vertx @bjschrijver Letโs meet Bert Jan Schrijver
- 3. #vertx @bjschrijver โขIntroduction โขWhy Vert.x? โขBasic demo โขDeep dive โขAdvanced demo โขMicroservices with Vert.x โขVert.x in practice Outline
- 4. #vertx @bjschrijver โขIntroduction โขWhy Vert.x? โขBasic demo โขDeep dive โขAdvanced demo โขMicroservices with Vert.x โขVert.x in practice Introduction Malmberg is an educational publisher in the Netherlands. Malmberg is building modern, rich and scalable e-learning applications using Java 8, Vert.x, AngularJS and MongoDB, running on Amazon cloud services.
- 6. #vertx @bjschrijver โขToolkit for building reactive applications on the JVM โขGeneral purpose application framework โขSwiss army knife for building modern and scalable web apps โขEvent-driven, non-blocking โขPolyglot โขLightweight and fast โขFun to work with! Vert.x: the basics
- 7. #vertx @bjschrijver โขWe love open source โขPowerful module system โขReactive characteristics Why we chose Vert.x
- 8. #vertx @bjschrijver Vert.x is reactive
- 11. #vertx @bjschrijver โขVerticle, application, instance, JVM: Vert.x in depth Host JVM Vert.x instance Verticle Event Bus Verticle Verticle Verticle JVM Vert.x instance Verticle Verticle Verticle Verticle
- 12. #vertx @bjschrijver โขVerticle, application, instance, JVM: Host Vert.x in depth Host JVM Vert.x instance Verticle Event Bus Verticle Verticle Verticle JVM Vert.x instance Verticle Verticle Verticle Verticle
- 13. #vertx @bjschrijver โขEvent driven and non blocking event loop โขMulti-reactor pattern โขActor-like concurrency โขDistributed event bus โขManagement and monitoring built-in Vert.x in depth
- 14. #vertx @bjschrijver โขBoth request/response and publish/subscribe โขAll Vert.x instances have access to the event bus โขVerticles interact using messages โขMessages are received by Handlers Vert.x event bus
- 15. #vertx @bjschrijver โขNever ever ever block the event loop! โขNeed to to blocking stuff? Use a worker Vert.xโs golden rule
- 16. #vertx @bjschrijver Vert.x in one slide Source: http://www.slideshare.net/clement.escoffier/vertx-31-be-reactive-on-the-jvm-but-not-only-in-java
- 19. #vertx @bjschrijver โขSmall in size, single responsibility โขRuns in its own process โขHas its own data store โขDistributed by default โขIndependently develop, deploy, upgrade, scale โขPotentially heterogeneous/polyglot โขLight-weight communication Anatomy of a microservice
- 20. #vertx @bjschrijver โขSmall in size, single responsibility โขRuns in its own process โขHas its own data store โขDistributed by default โขIndependently develop, deploy, upgrade, scale โขPotentially heterogeneous/polyglot โขLight-weight communication Anatomy of a Vert.x modulemicroservice
- 22. #vertx @bjschrijver โขOrganisation structure: โขCore platform team (infrastructure) โขCore modules team (Vert.x modules) โขProduct teams โขDeployment model: AWS, Nginx, MongoDB โขA product consists of multiple lightweight artifacts โขRe-use of Vert.x modules (no central services) 3 years of Vert.x: situation
- 23. #vertx @bjschrijver โขRolled our own deployment tooling and open sourced itโจ (https://github.com/msoute/vertx-deploy-tools) โขControlled from Jenkins โขZero-downtime deployments โขMicroservice deployments 3 years of Vert.x: deployments
- 24. #vertx @bjschrijver โขVery suitable for test driven development โขIntegration tests with embedded MongoDB โขGood cooperation with the Vert.x team 3 years of Vert.x: experiences
- 25. #vertx @bjschrijver โข Callback hell โข Java 8 helped a LOT โข Rx fixes the remaining issues โข Blocking the event loop โข Scaling / JVM overhead โข Debugging โข Static code analysis โข Upgrade from Vert.x 2 to Vert.x 3 3 years of Vert.x: challenges
- 28. #vertx @bjschrijver โขVert.x: toolkit for reactive applications on the JVM โขPolyglot, event-driven โขVery suitable for building microservices Summary
- 29. #vertx @bjschrijver โขhttps://github.com/bertjan/vertx3-examples โขhttp://vertx.io โขhttp://vertx.io/blog/my-first-vert-x-3-application โขhttps://github.com/vert-x3/vertx-examples โขhttp://github.com/msoute/vertx-deploy-tools Vert.x resources Donโt worry, Iโll tweet a link to the slide deck ;-)
- 32. #vertx @bjschrijver โขMy next project with Vert.x: One more thingโฆ
- 33. #vertx @bjschrijver โขPlease care about conference quality โขRate this talk in the Devoxx app โขGot feedback? Want to learn more? Let me know! Thanks for your time! All pictures belong to their respective authors @bjschrijverโจ bertjan@jpoint.nl