Spring Cloud

Spring Cloud Config:
Provides centralized, externalized, secured, easy-to-reach source of application configuration

Spring cloud Bus:
Provide simple way to notify clients to config changes

Spring Cloud Netflix Eureka:
Service Discovery - Allows application to register themselves as clients

https://github.com/kennyk65/Microservices-With-Spring-Student-Files/blob/master/LabInstructions/Lab%203.md

Which Comes First (Eureka or Config Server)?

• Config First Bootstrap (default): Use config servier to configure location of Eureka server

  1. implies spring.cloud.uri configured in each app

• Eureka First Bootstrap: Use Eureka to expose location of config server

  1. Config servier is just another client
  2. Implies spring.cloud.config.discovery.enable=true and eureka.client.serviceUrl.defaultZone configured in each app.
  3. Client makes two network trips to obtain configuration

  http://techblog.netflix.com/2012/09/eureka.html

  https://spring.io/blog/2015/01/20/microservice-registration-and-discovery-with-spring-cloud-and-netflix-s-eureka