Why do we need to externalize the configuration in Microservices Architecture?

Hello everyone. In this article, we are going to see what is a configuration and look at the problems in maintaining configuration for a microservices architecture. We will then see about Config Server and Config Client and then looks into the steps on how the communication between them happens to work. Then we will look at different sources the config servers can connect to and end the article by looking at the different types of Config Servers. Let's get started.