Mastering Spring Boot 2.0is for all Java developers who want to learn Spring Boot and Spring Cloud as enterprise-distributed cloud-based applications. Therefore, enterprise Java and Spring developers will find this book particularly useful in helping them understand cloud-native design patterns using the microservices architecture used by Spring Boot 2.0 and Spring Cloud, how the microservices architecture solves the common design problems of the cloud-native infrastructure in distributed applications, and they will appreciate the examples presented in this book. Before reading this book, readers should have basic knowledge of the basics of Core Java, Spring Core Framework, and Spring Boot. You can read my other book, Spring 5 Design Patterns to learn more about Spring Framework.
Spring Boot 2.0 has been newly launched by Pivotal with the reactive programming and the cloud. Spring Boot 2.0 introduces many new features and enhancements we will discuss in this book. Mastering Spring Boot 2.0 is a mastering book that will give you in-depth insight into the Spring Boot and cloud microservices architecture.
The great part of today's Spring Boot is that many companies have already adopted it as a primary framework for the development of the enterprise applications, especially for the REST APIs using the microservices architecture. For Spring Boot, no external enterprise servers are needed to start working with them.
The goal of writing this book is to discuss the common designs used behind cloud-native applications and how they are implemented in the Spring Cloud module of the Spring Boot 2.0. Here, the author has also outlined some best practices that should be used during logging of the distributed design and development of the application.
The book contains 15 chapters, which cover everything from the development of microservices-based cloud applications to the deployment of microservices by either using virtual machines or containers such as Docker.
Mastering Spring Boot 2.0 is divided into four parts. The first part introduces you to the essentials of Spring Boot 2.0, Spring Boot CLI, and Spring Cloud. Part 2 steps behind the interservice communication in the microservices architecture using Rest Template, Spring Cloud Netflix Feign. Part 3 expands on that by explaining how to build an event-driven resilient system with Spring Cloud Stream and Kafka. This part also shows you how to monitor using Hystrix and Turbine. Finally, part 4 explains how to test and build APIs, and deploy to containers such as Docker, and also to clouds, such as AWS.
Mastering Spring Boot 2.0 is for all Java developers who want to learn Spring Boot and Spring Cloud in the enterprise-distributed cloud-based applications. Therefore, enterprise Java and Spring developers will find it particularly useful in understanding cloud-native design patterns using the microservices architecture used by Spring Boot 2.0 and Spring Cloud, how microservices architecture solves common design problems of the cloud-native infrastructure in the distributed application, and they will most fully appreciate the examples presented in this book. Before reading this book, readers should have basic knowledge of Core Java, Spring Core Framework, and Spring Boot basics.
Chapter 1, Getting Started with Spring Boot 2.0, will give you an overview of Spring Boot 2.0 and all its new features, including some essential key components. You'll also get an overview of the greater the Spring Boot.
Chapter 2, Customizing Auto-Configuration in Spring Boot Application, will give an overview of the Spring Boot auto-configuration feature and explains how you can override the default autoconfiguration.
Chapter 3, Getting Started with Spring CLI and Actuator, will show you several ways to create Spring Boot applications using Spring Boot's web-based interface, the STS IDE, and Spring Boot CLI. In this chapter, we will discuss Spring Boot CLI deeply and will also see how to install it on your machine and how to use it to create Spring Boot applications. Also, you'll see Spring Boot's production-ready features using the Actuator.
Chapter 4, Getting Started with Spring Cloud and Configuration, will explore how to create a configuration server to provide a set of configuration files from a Git repository to client applications. In this chapter, the reader will also learn about Spring Cloud configuration service and how to build and consume the configuration service.
Chapter 5,Spring Cloud Netflix and Service Discovery, will explore Spring Cloud Netflix and Service Discovery with Eureka.
Chapter 6, Building Spring Boot RESTful Microservice, will build a RESTful atomic microservice that performs CRUD operations on an in-memory database, either HSQL or H2, using Spring Cloud and Spring Data, enable the service for service discovery registration to the Eureka server.
Chapter 7, Creating API Gateway with Netflix Zuul Proxy, will explore the need of the API gateway pattern for microservices communication, either from UI components or from inter service calls. We will implement an API gateway using the Netflix API Zuul. We will see how to set up a Zuul proxy in your application.
Chapter 8, Simplify HTTP API with Feign Client, will explore what Feign is and how it works. It gives a detailed explanation of how Feign can be extended/customized for business needs, with a reference implementation for a custom encoder, decoder, Hystrix, and exception handling with unit testing.
Chapter 9, Building Event-Driven and Asynchronous Reactive Systems, will provide a detailed overview of how to use event-driven architectures to build event-driven microservices as cloud-native applications. We will look at some of the important concepts and themes behind handling data consistency in distributed systems.
Chapter 10, Building Resilient Systems Using Hystrix and Turbine, will explore the circuit breaker pattern with a reference implementation using the Netflix Hystrix library, touching base on configuring the Turbine dashboard to aggregate hystrix streams from multiple services.
Chapter 11, Testing Spring Boot Application, will explore unit testing Spring Boot Services using JUnit and Mockito. All our reference implementation will have unit testing done, so this chapter is more of an aggregation of the different testing mechanisms available for microservices.
Chapter 12, Containerizing Microservice, will provide an introduction to containers, dockerizing the services built in the previous chapter, writing a Dockerfile, orchestrating the containers using docker-compose, and providing an orchestration example in Kubernetes.
Chapter 13, API Management, will explore the need for an API manager in distributed systems, setting up KONG open source API manager, configuring the API endpoints built in the previous chapters in the KONG API Manager, introducing Swagger for API standards, and finally closing with demonstrating rate limiting and logging using KONG.
Chapter 14, Deploying in Cloud (AWS), will explore deploying microservices in AWS EC2 instances manually and using cloudformation scripts. You will learn how to run a Docker-enabled Spring Boot microservice application on Amazon EC2 instances.
Chapter 15, Production Ready Service Monitoring and Best Practices, will elaborate on some of the best practices in building distributed systems and also will elaborate on performance monitoring for production ready services. We will introduce log aggregation using the ELK(Elasticsearch/Logstash/Kibana) stack for a distributed application.
This book can be read without a computer or laptop at hand, in which case you need nothing more than the book itself. However, to follow the examples in the book, you need Java 8, which you can download from http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html, and you will also need your favorite IDE. I have used the Software Spring Tool Suite; download the latest version of Spring Tool Suite (STS) from https://spring.io/tools/sts/all according to your OS. Java 8 and STS work on a variety of platforms—Windows, macOS, and Linux.
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