Spring Cloud Eureka with Config Server

java spring spring-cloud netflix-eureka spring-cloud-config
Turar picture Turar · Nov 13, 2015 · Viewed 10.3k times · Source

What is the recommended configuration when running both Config Server with Eureka Server? Should Config Server be a client of Eureka? Or should Eureka be dependent on Config Server properties for its configuration? Or is both OK?

Answer

Jade Devin Nocum Cabatlao picture Jade Devin Nocum Cabatlao · Nov 1, 2016

The default way to use Eureka and Config Server is to use Config First bootstrap. Essentially, you make eureka server a client of the config server but you don't make the config server a client of eureka.

As said by David Syer on these (and this) issues, the founder of spring cloud, you have to use the config server with a front end load balancer, so a single URL is already highly available.

I'm also a newbie in Spring Cloud but I agree with him since Eureka is a Service Discovery, IMHO it should function on it's problem domain only. It would make a complicated logic for Eureka servers who are asking the Config servers for it's configuration. I can't imagine how the Eureka Server would know which config server to get if the Config Server is also the Server of Eureka to get its list of defaultZone.

It would be much more simpler for me to separate the Config Server's HA.

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