Book Image

Mastering Spring Cloud

By : Piotr Mińkowski
Book Image

Mastering Spring Cloud

By: Piotr Mińkowski

Overview of this book

Developing, deploying, and operating cloud applications should be as easy as local applications. This should be the governing principle behind any cloud platform, library, or tool. Spring Cloud–an open-source library–makes it easy to develop JVM applications for the cloud. In this book, you will be introduced to Spring Cloud and will master its features from the application developer's point of view. This book begins by introducing you to microservices for Spring and the available feature set in Spring Cloud. You will learn to configure the Spring Cloud server and run the Eureka server to enable service registration and discovery. Then you will learn about techniques related to load balancing and circuit breaking and utilize all features of the Feign client. The book now delves into advanced topics where you will learn to implement distributed tracing solutions for Spring Cloud and build message-driven microservice architectures. Before running an application on Docker container s, you will master testing and securing techniques with Spring Cloud.
Table of Contents (22 chapters)
Title Page
Copyright and Credits
Packt Upsell
Contributors
Preface
Index

Building a client-side application


If you set port 8888 as the default for the server, the configuration on the client side is really simple. All you need to do is to provide the bootstrap.ymlfile with the application name and include the following dependency in yourpom.xml. Of course, that rule is applicable only on localhost, because the auto-configured Config Server address for a client ishttp://localhost:8888:

<dependency>
  <groupId>org.springframework.cloud</groupId>
  <artifactId>spring-cloud-starter-config</artifactId>
</dependency>

If you set a port different than 8888 for the server, or it is running on a different machine than the client application, you should also set its current address in bootstrap.yml. Here are the bootstrap context settings, which allow you to fetch properties for client-service from the server available on port 8889. When running the application with the--spring.profiles.active=zone1 argument, it automatically fetches the...