Adopting microservices and evolving existing applications

So, we had an overview of the benefits of microservices applications and some of their particular characteristics. I think it is now relevant to better consider why you should (or should not) adopt this architectural style. This kind of consideration can be useful both for the creation of new applications from scratch (in what is called green-field development) and modernization (termed brown-field applications). Regarding the latter aspect, we will discuss some of the suggested approaches for modernizing existing applications in the upcoming sections.

But back to our main topic for this section: why should you adopt the microservices-based approach?

The first and most important reason for creating microservices is the release frequency. Indeed, the most famous and successful production experiences of microservices applications are related to services heavily benefitting from being released often.

This is because a...