anchor.diff:  ....
   spring.cloud.gcp.config.enabled=true
   spring.cloud.gcp.config.name=myapp
  -spring.cloud.gcp.config.profile=prod #default profile = default
  +
  +#default profile = default
  +spring.cloud.gcp.config.profile=prod
   ....
   5.  Notice that link:src/main/java/com/example/MyAppProperties.java[MyAppProperties.java]
   uses `@ConfigurationProperties` to bind the `myapp` namespace from the environment.
  
positive.code: ....
  $ curl -XPOST http://localhost:8080/actuator/refresh
  ....
  
negative.code: ....
  management.endpoints.web.exposure.include=refresh
  ....
  7.  Run the application using the `$ mvn spring-boot:run` command and
  verify the values are set appropriately at http://localhost:8080/
  8.  Update a property with `gcloud`:
  +
  ....
  $ gcloud beta runtime-config configs variables set \
    myapp.queue-size 200 \
    --config-name myapp_prod
  
  $ gcloud beta runtime-config configs variables set \
    myapp.feature-x-enabled false \
    --config-name myapp_prod
  ....
  9.  Send a POST request to the refresh endpoint:
  