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Microservices with Spring Boot 3 and Spring Cloud, Third Edition

Microservices with Spring Boot 3 and Spring Cloud, Third Edition

By : Magnus Larsson AB, Magnus Larsson
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Microservices with Spring Boot 3 and Spring Cloud, Third Edition

Microservices with Spring Boot 3 and Spring Cloud, Third Edition

4 (24)
By: Magnus Larsson AB, Magnus Larsson

Overview of this book

Looking to build and deploy microservices but not sure where to start? Check out Microservices with Spring Boot 3 and Spring Cloud, Third Edition. With a practical approach, you'll begin with simple microservices and progress to complex distributed applications. Learn essential functionality and deploy microservices using Kubernetes and Istio. This book covers Java 17, Spring Boot 3, and Spring Cloud 2022. Java EE packages are replaced with the latest Jakarta EE packages. Code examples are updated and deprecated APIs have been replaced, providing the most up to date information. Gain knowledge of Spring's AOT module, observability, distributed tracing, and Helm 3 for Kubernetes packaging. Start with Docker Compose to run microservices with databases and messaging services. Progress to deploying microservices on Kubernetes with Istio. Explore persistence, resilience, reactive microservices, and API documentation with OpenAPI. Learn service discovery with Netflix Eureka, edge servers with Spring Cloud Gateway, and monitoring with Prometheus, Grafana, and the EFK stack. By the end, you'll build scalable microservices using Spring Boot and Spring Cloud.
Table of Contents (26 chapters)
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24
Other Books You May Enjoy
25
Index

Summary

In this chapter, we were introduced to the new Spring AOT engine and underlying GraalVM project, along with its Native Image compiler. After declaring GraalVM’s plugin in the build file and providing the Native Image compiler with some reachability metadata and custom hints, it can be used to create Native Images. Spring Boot’s Gradle task buildBootImage packages these standalone executable files into ready-to-use Docker images.

The main benefit of compiling Java-based source code into Native Images is significantly faster startup time and less memory usage. In a test where we started up the microservice instances at the same time, we observed 0.2-0.5 seconds startup times for the natively compiled microservices, compared with the 5.5 to 7 seconds required for the Java VM-based microservices for the same test. Also, the natively compiled microservices required less than half of the memory compared to the Java VM-based microservices after running through the...

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