如何设置Spring Cloud Eureka应用程序的区域

Question

This is probably a dumb question ;-).

In Spring's ribbon code (ZonePreferenceServerListFilter), I see:

    if (ConfigurationManager.getDeploymentContext() != null) {
        this.zone = ConfigurationManager.getDeploymentContext().getValue(
                ContextKey.zone);
    }

The zone name defaults to 'defaultZone'.

How/where can I set that value for my application?

I tried setting eureka.instance.metadataMap.zone in application.yml but that did not work.

Any suggestions?

Thanks.

Henry

Answer 1

I believe it is eureka.client.availabilityZones which is a list. Then you can set eureka.client.serviceUrl.<yourzone>=<eurekaurlforthatzone .

Answer 2

If you have multiple zones, you may find some more details here: https://github.com/spring-cloud/spring-cloud-netflix/issues/991

With the enhancement provided there you can set the zone of the Eureka-Ribbon-Client with eureka.instance.metadataMap.zone . If you use earlier versions of Spring Cloud you can still use the property "@zone" in your application.yaml.

The approach to use availabilityZones to set the zone is limited to setups with only one zone, since the first one will be always used.