Going Serverless with Spring Cloud Function
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In his report, Orkhan Gasimov (Digital Transformation Architect, Consultant, GlobalLogic, Kyiv) talked to the participants about the willingness of developers to go to Serverless, talked about the new Spring Cloud Function project, and the ability to reuse the code as an http endpoint, a stream handler, or as a cloud serverless function. The report also addressed the features of the Spring Cloud Function and how to use it to improve development performance. This presentation was delivered at GlobalLogic Kharkiv Java TechTalk #1 on February 5, 2019. Video: https://youtu.be/WLojSXqCvSE
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Going Serverless with Spring Cloud Function
- 1. Spring Cloud Function Going Serverless
- 2. Orkhan Gasimov Digital Transformation Architect @ GlobalLogic 15 years of software engineering; training & mentorship; author of trainings about: Microservices; Spring Cloud; Akka; 2Speaker
- 8. 8 Enterprise Evolution App Server 1 Module Module Module Module App Server N Module Module Module Module
- 9. 9 Enterprise Evolution App Server 1 Module Module Module Module App Server N Module Module Module Module Admin Server Deployment & Configuration
- 10. 10 Enterprise Evolution Module Module Module Module Module Module Module Module Admin Server Deployment & Configuration
- 13. 13 Enterprise Evolution App App App App App App App App App App App App App App App App App App App App Discovery & Configuration Microservices
- 14. 14 Enterprise Evolution App App App App App App App App App App App App App App App App App App App App Server Discovery & Configuration Microservices
- 15. 15 Enterprise Evolution App App App App App App App App App App App App App App App App App App App App Server Modules Discovery & Configuration Microservices
- 16. 16 Enterprise Evolution App App App App App App App App App App App App App App App App App App App App Server Modules Fn Discovery & Configuration Microservices
- 17. 17 Enterprise Evolution App App App App App App App App App App App App App App App App App App App App Server Modules Fn ? Discovery & Configuration Microservices
- 18. 18 Enterprise Evolution App App App App App App App App App App App App App App App App App App App App Server Modules Fn ? Server Modules Fn ? Server Modules Fn ? Server Modules Fn ? Server Modules Fn ? Server Modules Fn ? Server Modules Fn ? Server Modules Fn ? Discovery & Configuration Microservices
- 19. 19 Enterprise Evolution App App App App App App App App App App App App App App App App App App App App Server Modules Fn ? Server Modules Fn ? Server Modules Fn ? Server Modules Fn ? Server Modules Fn ? Server Modules Fn ? Server Modules Fn ? Server Modules Fn ? Discovery & Configuration Microservices
- 21. 21 Enterprise Evolution Microservices Discovery & Configuration App App App App App App App App
- 22. 22 Enterprise Evolution Fn Fn Fn Fn Fn Fn Fn Fn Discovery & Configuration Microservices Functions
- 23. 23 Enterprise Evolution Distributed Functions Fn Fn Fn Fn Fn Fn Fn Fn Microservices Functions Discovery & Configuration
- 24. 24 Enterprise Evolution Fn Fn Fn Fn Fn Fn Fn Fn Distributed Functions Microservices Functions Discovery & Configuration HTTP
- 25. 25 Enterprise Evolution Fn Fn Fn Fn Fn Fn Fn Fn Distributed Functions Microservices Functions Discovery & Configuration MQHTTP
- 26. 26 Enterprise Evolution Fn Fn Fn Fn Fn Fn Fn Fn Discovery & Configuration Spring Distributed Functions Microservices Functions MQHTTP
- 27. 27 Enterprise Evolution Fn Fn Fn Fn Fn Fn Fn Fn Discovery & Configuration MQHTTP Cloud Spring Distributed Functions Microservices Functions
- 32. 32Service Discovery Sales Sales Sales Warehouse Accounting Discounts Client API Gateway Service Registry
- 33. Users Accounting Warehouse 33Dynamic Coordination Sales Sales Warehouse Accounting Discounts Client API Gateway Service Registry
- 34. 34CQRS + Event Sourcing Client API Gateway Command Query
- 35. 35CQRS + Event Sourcing Query Command Client API Gateway Command Query
- 36. 36CQRS + Event Sourcing Query Command Client API Gateway Service Registry Command Query
- 37. 37CQRS + Event Sourcing Query Command Client API Gateway Service Registry Command Query DB DB
- 38. 38CQRS + Event Sourcing Event Store Query Command Client API Gateway Service Registry Command Query DB DB
- 39. 39CQRS + Event Sourcing Event Handler Event Store Query Command Client API Gateway Service Registry Command Query DB DB
- 40. 40CQRS + Event Sourcing Fn Fn Fn Event Handler Event Store Query Command Client API Gateway Service Registry Command Query DB DB
- 47. Spring Cloud Function Serverless & X-Platform
- 49. 49Components Service Service Service Repository Repository RepositoryRepository
- 50. 50Components Controller Service Controller Service Service Repository Repository RepositoryRepository
- 51. 51Components Controller Service Controller Service Service Repository Repository RepositoryRepository DTO DTO Entity Entity Entity Entity
- 52. 52Components Controller Service Controller Service Service Repository Repository RepositoryRepository DTO DTO Entity Entity Entity Entity
- 59. 59Beans Declare function as beans @SpringBootApplication public class TestApp {
- 60. 60Beans Declare function as beans @SpringBootApplication public class TestApp { @Bean public Function<Flux<String>, Flux<String>> upperCase() { return flux -> flux.map(String::toUpperCase); }
- 61. 61Beans Declare function as beans @SpringBootApplication public class TestApp { @Bean public Function<Flux<String>, Flux<String>> upperCase() { return flux -> flux.map(String::toUpperCase); } @Bean public Supplier<String> helloWorld() { return () -> "Hello World"; }
- 62. 62Beans Declare function as beans @SpringBootApplication public class TestApp { @Bean public Function<Flux<String>, Flux<String>> upperCase() { return flux -> flux.map(String::toUpperCase); } @Bean public Supplier<String> helloWorld() { return () -> "Hello World"; } public static void main(String[] args) { SpringApplication.run(TestApp.class, args); } }
- 63. 63Beans @Component public class HelloWorld implements Supplier<String> { @Override public String get() { return "Hello World"; } }
- 64. 64Beans @Component public class HelloWorld implements Supplier<String> { @Override public String get() { return "Hello World"; } } @Component public class UpperCase implements Function<Flux<String>, Flux<String>> { @Override public Flux<String> apply(Flux<String> flux) { return flux.map(String::toUpperCase); } }
- 65. 65Beans @SpringBootApplication public class TestApp { public static void main(String[] args) { SpringApplication.run(TestApp.class, args); } } @Component public class HelloWorld implements Supplier<String> { @Override public String get() { return "Hello World"; } } @Component public class UpperCase implements Function<Flux<String>, Flux<String>> { @Override public Flux<String> apply(Flux<String> flux) { return flux.map(String::toUpperCase); } }
- 71. Deploy functions as HTTP Endpoints 71Web <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-function-web</artifactId> </dependency>
- 72. Stream Functions on Stream handlers
- 75. Deploy functions as Stream handlers 75Stream <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-function-stream</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-stream-binder-{rabbit/kafka/...}</artifactId> </dependency>
- 76. 76Stream spring: profiles: upper cloud: stream: bindings: input: destination: hello output: destination: upper function: stream: sink: name: upperCase source: name: upperCase
- 77. 77Stream spring: profiles: hello cloud: stream: bindings: output: destination: hello function: stream: sink: enabled: false source: name: helloWorld
- 79. • Cloud • Amazon AWS • Microsoft Azure • Apache OpenWhisk 79Deployment
- 80. • Cloud • Amazon AWS • Microsoft Azure • Apache OpenWhisk • Spring Cloud Data Flow • Kubernetes • Cloud Foundry • Mesos • Spark 80Deployment
- 81. 81Spring Cloud Data Flow
- 82. 82Spring Cloud Data Flow Data Flow Server
- 83. 83Spring Cloud Data Flow Data Flow Server Admin UI/CLI
- 84. 84Spring Cloud Data Flow Data Flow Server Admin UI/CLI Maven Repo
- 85. 85Spring Cloud Data Flow Data Flow Server Admin UI/CLI MQ Maven Repo
- 86. 86Spring Cloud Data Flow Supplier ConsumerFunction Source SinkProcessor
- 87. 87Spring Cloud Data Flow Supplier ConsumerFunction
- 88. Source Processor Sink file aggregator aggregate-counter ftp bridge cassandra gemfire filter counter gemfire-cq groovy-filter field-value-counter http groovy-transform file jdbc header-enricher ftp jms httpclient gemfire load-generator pmml gpfdist loggregator python-http hdfs mail python-jython hdfs-dataset mongodb scriptable-transform jdbc mqtt splitter log rabbit tasklaunchrequest- transform mongodb s3 tcp-client mqtt sftp tensorflow pgcopy syslog transform rabbit tcp twitter-sentiment redis-pubsub tcp-client router time s3 trigger sftp triggertask task-launcher-cloudfoundry twitterstream task-launcher-local task-launcher-yarn tcp throughput websocket
- 90. 90Examples • Projects • Media Processing • Data Processing Pipelines • Financial Calculators • Use-cases • Semi-universal deployment model • Separation of independent function from service logic • On-prem FaaS • Proprietary FaaS platform
- 92. 92 Enterprise Summary Fn Fn Fn Fn Fn Fn Fn Fn Discovery & Configuration MQHTTP Cloud Spring Distributed Functions Microservices Functions
- 93. 93Summary • Functions as Beans • Serverless & X-Platform • Web • Streaming • Cloud • Data Flow Fn Fn Fn Fn Fn Fn Fn Fn Discovery & Configuration MQHTTP Cloud Spring Distributed Functions