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2018 (codeone) Graal VM and MicroProfile a polyglot microservices solution [dev6016]
The document discusses the integration of GraalVM and MicroProfile as solutions for developing polyglot microservices, highlighting their benefits such as improved performance, interoperability, and faster feature delivery. It outlines MicroProfile's features and capabilities, including configuration, fault tolerance, security, and REST client implementations across various programming languages. Additionally, the document emphasizes the growing relevance of GraalVM's native images and the need for effective management of complexity in multi-language service architectures.
2018 (codeone) Graal VM and MicroProfile a polyglot microservices solution [dev6016]
- 1. @radcortez @CesarHgt @tomitribehttps://www.tomitribe.com/codeone/dev6016/ RobertoCortez, César Hernández GraalVM and MicroProfile: A Polyglot Microservices Solution
- 2. @CesarHgt @ivanjunckes @tomitribetomitribe.com/codeone/dev5933/ SPEAKERS RobertoCortez ● Blogger, Youtuber, Speaker ● +10 years of experience with Java César Hernández ● Senior Software Engineer at Tomitribe ● Java Champion ● Duke’s Choice Award 2016, 2017 ● Oracle Certified Professional ● +10 experience with Java EE ● Eclipse Committer: Jakarta EE TCK, JAX-WS and Microprofile. ● Open Source advocate, teacher and public speaker ● Senior Software Engineer at Tomitribe ● Java Champion & Oracle Groundbreaker ● JUG Leader Coimbra JUG & vJUG ● JNation Conference Founder & Organizer
- 3. @radcortez @CesarHgt @tomitribehttps://www.tomitribe.com/codeone/dev6016/ Questions? Assoon as you have them!
- 4. @radcortez @CesarHgt @tomitribehttps://www.tomitribe.com/codeone/dev6016/ Agenda ●Microservices! ● What is GraalVM? ● What is MicroProfile? ● Demos
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- 7. @radcortez @CesarHgt @tomitribehttps://www.tomitribe.com/codeone/dev6016/ Microservices ●Have you heard about Microservices? ● How big is a micro? ● Who develops Microservices? ● Who deploys Microservices? ● Who likes Microservices?
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- 12. @radcortez @CesarHgt @tomitribehttps://www.tomitribe.com/codeone/dev6016/ WhyMicroservices? ● Deliver new features quicker ● Smaller, agile teams ● Scale services independently ● Cloud
- 13. @radcortez @CesarHgt @tomitribehttps://www.tomitribe.com/codeone/dev6016/ MicroserviceHell? ● Supporting Multiple Languages ○ Java (and JVM Languages), Node, Python, Ruby, PHP, Go, etc, etc. ● Different libraries to cover same features ● Increased complexity ● Research time ● May need to rewrite your libraries for all languages
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- 15. @radcortez @CesarHgt @tomitribehttps://www.tomitribe.com/codeone/dev6016/ GraalVM ●Universal virtual machine ● JavaScript, Python, Ruby, R, JVM-based languages (Java, Scala, Kotlin), and LLVM-based languages (C and C++) ● Open Source Project (GPL2 /w CPE) ● https://www.graalvm.org/ ● https://github.com/oracle/graal
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- 17. @radcortez @CesarHgt @tomitribehttps://www.tomitribe.com/codeone/dev6016/ DEMO Installationand run a simple app with GraalVM
- 18. @radcortez @CesarHgt @tomitribehttps://www.tomitribe.com/codeone/dev6016/ WhyGraalVM? ● Native Images ● Interoperability ● Reuse Libraries ● Shared Tools ● Run Java faster
- 19. @radcortez @CesarHgt @tomitribehttps://www.tomitribe.com/codeone/dev6016/ NativeImage native-image -cp target/number.api.jar org.tomitribe.graalvm.microprofile.number.api.NumberResource native-image -jar target/number-api.jar
- 20. @radcortez @CesarHgt @tomitribehttps://www.tomitribe.com/codeone/dev6016/ DEMO Nativeimage Java app with GraalVM
- 21. @radcortez @CesarHgt @tomitribehttps://www.tomitribe.com/codeone/dev6016/ Interoperability varfileClass = Java.type("java.io.File"); var file = new FileClass("file.txt"); file.exists(); var file = new (Java.type("java.io.File"))("file.txt"); var pathSeparator = Java.type("java.io.File").pathSeparator;
- 22. @radcortez @CesarHgt @tomitribehttps://www.tomitribe.com/codeone/dev6016/ ReuseLibraries --jvm allows you to execute the application in the JVM and pass in a classpath to use libraries. node --jvm --jvm.cp=library.jar app.js ruby --jvm --jvm.cp=library.jar ruby.rb graalpython --jvm --jvm.cp=library.jar python.py
- 23. @radcortez @CesarHgt @tomitribehttps://www.tomitribe.com/codeone/dev6016/ NPMmodule, Ruby gem or R package compatibility? https://www.graalvm.org/docs/reference-manual/compatibility/
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- 25. @radcortez @CesarHgt @tomitribehttps://www.tomitribe.com/codeone/dev6016/ MicroProfile ●http://microprofile.io ● Enterprise Java for MicroServices ● Open Source (Eclipse) ● Implemented by different vendors. ● Application portability across runtimes.
- 26. @radcortez @CesarHgt @tomitribehttps://www.tomitribe.com/codeone/dev6016/ MicroProfile2.1 MicroProfile 2.1 JAX-RS 2.1JSON-P 1.1CDI 2.0 Config 1.3 Fault Tolerance 1.1 JWT Propagation 1.1 Health Check 1.0 Metrics 1.1 Open Tracing 1.2 Open API 1.0 Rest Client 1.1 JSON-B 1.0
- 27. @radcortez @CesarHgt @tomitribehttps://www.tomitribe.com/codeone/dev6016/ MicroProfileImplementations ● Apache TomEE ● Payara Micro ● Thorntail ● WebSphere Liberty ● KumuluzEE ● SmallRye
- 28. @radcortez @CesarHgt @tomitribehttps://www.tomitribe.com/codeone/dev6016/ Whatis TomEE? ● Tomcat + Jakarta EE = TomEE ● Built within the OpenEJB community to offer a lightweight alternative with Tomcat being the top dog. ● TomEE 8 is a MicroProfile implementation ● Supports MicroProfile 1.3. ● Planned support for MicroProfile 2.x.
- 29. @radcortez @CesarHgt @tomitribehttps://www.tomitribe.com/codeone/dev6016/ Configuration ●Applications need configuration based on their running environment ● It must be possible to change configuration without repacking the application. ● Java - MicroProfile Config ● Node - Node Convict ● Ruby - dotenv?
- 30. @radcortez @CesarHgt @tomitribehttps://www.tomitribe.com/codeone/dev6016/ MicroProfileConfig Config config = ConfigProvider.getConfig(); String url = config.getValue("connection.url", String.class); String optionalUrl = config.getOptionalValue("connection.url", String.class).orElse("something");
- 31. @radcortez @CesarHgt @tomitribehttps://www.tomitribe.com/codeone/dev6016/ Demo MicroProfileConfig in Node and Ruby app
- 32. @radcortez @CesarHgt @tomitribehttps://www.tomitribe.com/codeone/dev6016/ FaultTolerance ● Guide the execution and result of some logic ● Circuit Breaker, TimeOut, Retry, Fallback and Bulkhead ● Java - MicroProfile Config ● Node - Opossum ● Ruby - CircuitBox
- 33. @radcortez @CesarHgt @tomitribehttps://www.tomitribe.com/codeone/dev6016/ MicroProfileFault Tolerance @CircuitBreaker @Fallback(NumberFallbackHandler.class) public String getNumber(); public class NumberFallbackHandler implements FallbackHandler<String> { @Override public String handle(final ExecutionContext executionContext) { ... } }
- 34. @radcortez @CesarHgt @tomitribehttps://www.tomitribe.com/codeone/dev6016/ RestClient ● Microservices typically talk REST to other services ● Consistent and easy to use ● Java - MicroProfile Rest Client (inspired by Feign) ● Node - Node Rest Client ● Ruby - Ruby Rest Client
- 35. @radcortez @CesarHgt @tomitribehttps://www.tomitribe.com/codeone/dev6016/ MicroProfileRest Client @Dependent @RegisterRestClient @Path("/number") @Produces(MediaType.TEXT_PLAIN) @Consumes(MediaType.TEXT_PLAIN) public interface NumberResourceClient { @GET @Path("/generate") String getNumber(); }
- 36. @radcortez @CesarHgt @tomitribehttps://www.tomitribe.com/codeone/dev6016/ DEMO MicroProfileRest Client and Fault Tolerance in Ruby and Python app
- 37. @radcortez @CesarHgt @tomitribehttps://www.tomitribe.com/codeone/dev6016/ Security ●Security Token ● Lightweight way to propagate identities across different services ● Java - MicroProfile JWT Propagation ● Node - express-jwt ● Ruby - ruby-jwt
- 38. @radcortez @CesarHgt @tomitribehttps://www.tomitribe.com/codeone/dev6016/ HealthCheck ● Probe the state of a computer node ● Automated processes to maintain the state of the nodes ● Java - MicroProfile Healthchecks ● Node - express-healthcheck ● Ruby - okcomputer
- 39. @radcortez @CesarHgt @tomitribehttps://www.tomitribe.com/codeone/dev6016/ Metrics ●Monitor essential System Parameters ● Ensure reliable operation of Software ● Java - MicroProfile Metrics ● Node - appmetrics ● Ruby - ???
- 40. @radcortez @CesarHgt @tomitribehttps://www.tomitribe.com/codeone/dev6016/ DEMO PolyglotApp with Microprofile Architecture
- 41. @radcortez @CesarHgt @tomitribehttps://www.tomitribe.com/codeone/dev6016/ movies-app AngularJS, Java API Gateway comments-api NodeJS number-api NodeJS, Ruby, Java libraries.jar Java number-api-client Ruby, Python
- 42. @radcortez @CesarHgt @tomitribehttps://www.tomitribe.com/codeone/dev6016/ Limitations ●Dynamic Class Loading (native images) https://github.com/oracle/graal/blob/master/substratevm/LIMITATIONS.md ● Manage your own classpath (for integration) ● Lack of tooling ● Not much information around ● Python still in early support stage. No support for Rails.
- 43. @radcortez @CesarHgt @tomitribehttps://www.tomitribe.com/codeone/dev6016/ ProductionReady? ● OK for JVM Languages and JS ● Other languages may not work fully ● Twitter is using it in production already ● Consider performance ● Try it out!
- 44. @radcortez @CesarHgt @tomitribehttps://www.tomitribe.com/codeone/dev6016/ FinalThoughts ● GraalVM could potentially improve MicroServices development ● It could help bring technologies together ● Pick one of your favorites languages (from the supported ones) ● Consistency ● No boundaries
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