Summary
In this chapter, we learned how to scale Twelve-Factor Spring Boot microservices using the Spring Cloud project. Our learnings were applied on the BrownField Airline's PSS microservice, which we developed in the previous chapter.
We explored the Spring Config Server for externalizing microservices configurations, and how to deploy the Config Server for high availability. We also learned Eureka for load balancing, dynamic service registration, and discovery. Implementation of an API Gateway was examined by implementing Zuul. Finally, we concluded with the reactive style integration of microservices using Spring Cloud Streams.
The BrownField Airline's PSS microservices are now deployable for Internet scale. Other Spring Cloud components such as Hyterix, Sleuth, and others will be covered in the next chapter.