Scaling microservices with Spring Cloud

In Chapter 5, Scaling Microservices with Spring Cloud, you learned how to scale Spring Boot microservices using Spring Cloud components. The two key concepts of Spring Cloud that we implemented are self-registration and self-discovery. These two capabilities enable automated microservices deployments. With self-registration, microservices can automatically advertise the service availability by registering service metadata to a central service registry as soon as the instances are ready to accept traffic. Once the microservices are registered, consumers can consume the newly registered services from the very next moment by discovering service instances using the registry service. Registry is at the heart of this automation.

This is quite different from the traditional clustering approach employed by the traditional JEE application servers. In the case of JEE application servers, the server instances' IP addresses are more or less statically configured...