anchor.diff:  <1> Get the information about the `my-service-name` instance.
   <2> Build `channel` accordingly.
   <3> Create stub using the `channel`.
  +<4> Invoke the service.
   
   
   
  
positive.code: 
  * Add eureka starter as dependency of your client project together with generated class from `proto` files:
  
  [source,gradle]
  .build.gradle
  ----
   dependencies {
  
negative.code:                 .usePlaintext(true)
                  .build(); <2>
          final GreeterServiceGrpc.GreeterServiceFutureStub stub = GreeterServiceGrpc.newFutureStub(channel); <3>
          stub.greet(name); <4>
  
      }
  }
  