Spring: Developing Java Applications for the Enterprise

Eureka for registration and discovery

So far, we have achieved externalizing configuration parameters as well as load balancing across many service instances.

Ribbon-based load balancing is sufficient for most of the microservices requirements. However, this approach falls short in a couple of scenarios:

• If there is a large number of microservices, and if we want to optimize infrastructure utilization, we will have to dynamically change the number of service instances and the associated servers. It is not easy to predict and preconfigure the server URLs in a configuration file.
• When targeting cloud deployments for highly scalable microservices, static registration and discovery is not a good solution considering the elastic nature of the cloud environment. ...