Service discovery endpoint - online/offline service instances

[jkonicki]

Provide Blue/Green deployments through endpoint. Use the endpoint to set registered instances to offline. For Eureka and Consul.

[TimHess]

This functionality is provided in Spring via the service-registry endpoint: https://github.com/spring-cloud/spring-cloud-commons/blob/master/spring-cloud-commons/src/main/java/org/springframework/cloud/client/serviceregistry/endpoint/ServiceRegistryEndpoint.java

[cesinhaugusto]

@TimHess I'd like to tackle this one

[TimHess]

Sounds good, have at it!

[jkonicki]

@cesinhaugusto We are happy to have the help. Let us know if there are any questions or if you have any issues getting started on this task. Thanks.