We have a centralized configuration server already and now we can make use of it to configure our services. So, basically, whatever key-value pairs the application uses in the application.yml file or coded in Java can be linked and centralized to a configuration server. A change in a property in the Config Server backend can be reflected on the fly in the Config Server client service (for instance, a client service might use a @ConfigurationProperties annotated structured object, or use the @Value variable with a POST /actuator/refresh call). We will make use of @Value in the sample code with a POST /actuator/refresh call to show the on-the-fly change.
When the Config client application starts, it connects to Config ...
