Let's start by going over the concept of microservices. In the legacy world, applications were delivered in a monolithic architecture. This meant that multiple services were hosted together on a single node. In the microservice architecture, the application is divided into a number of microservices, each hosted on a separate node, like so:
Each microservice is responsible for a single functionality. The microservices are loosely coupled and can be developed and managed separately. They communicate with each other using APIs. Thanks to that, each microservice can even be developed in a different programming language. When you need to upgrade your application, you can upgrade a single node without affecting other components. By splitting the application into microservices, you also have control when you scale your application. You can granularly...
