title: Spring Cloud Config: differentiate configs for service instances
body: <p>Spring Cloud Config serves configuration based on app name, profile and label.
  I'm wondering, how to differentiate configuration of two instances of same service on same environment. They should basically have the same configuration, but, for example, I would like to allow on testing environment running them on the same host, so I need different ports.</p>
  
  <p>How you solve this? Using fake profiles (dev-1, dev2)? Or is there some better way?</p>