Explore microservices in-depth and understand when to use them.

Scalability & System Design for Developers

In this module, we’ll explore microservices in depth and understand when to use them. Beyond that, learn about micro and macro architecture, strategies for migrating old systems, the role of Docker in this architecture, and technologies for implementing microservices.

An Introduction to Microservice Principles and Concepts

Migration **from a deployment monolith to a microservices architecture** is the common case for introducing microservices. Most projects start with a deployment monolith that the team wants to split into microservices later because the deployment monolith has too many disadvantages.

Of course, it is also possible to implement a new system directly with microservices from scratch.

# Chapter walkthrough

This chapter **provides an overview of the challenges involved** in migrating to a microservices system.

* The chapter discusses possible **reasons for migration**. In this way, readers can assess whether a migration makes sense in their context. The approach to migration depends on your objectives. Therefore, knowing possible reasons is helpful for choosing a migration strategy.

* The chapter then shows a **typical strategy for migration**, with some
alternatives. In this way, readers can choose a migration approach suitable for their scenario.



In this lesson, we'll get a walkthrough of what this chapter holds for us.