Book Image

Practical Microservices with Dapr and .NET

By : Davide Bedin
Book Image

Practical Microservices with Dapr and .NET

By: Davide Bedin

Overview of this book

Over the last decade, there has been a huge shift from heavily coded monolithic applications to finer, self-contained microservices. Dapr is a new, open source project by Microsoft that provides proven techniques and best practices for developing modern applications. It offers platform-agnostic features for running your applications on public cloud, on-premises, and even on edge devices. This book will help you get to grips with microservice architectures and how to manage application complexities with Dapr in no time. You'll understand how Dapr offers ease of implementation while allowing you to work with multiple languages and platforms. You'll also understand how Dapr's runtime, services, building blocks, and software development kits (SDKs) help you to simplify the creation of resilient and portable microservices. Dapr provides an event-driven runtime that supports the essential features you need to build microservices, including service invocation, state management, and publish/subscribe messaging. You'll explore all of those in addition to various other advanced features with this practical guide to learning Dapr. By the end of this book, you'll be able to write microservices easily using your choice of language or framework by implementing industry best practices to solve problems related to distributed systems.
Table of Contents (16 chapters)
1
Section 1: Introduction to Dapr
4
Section 2: Building Microservices with Dapr
10
Section 3: Deploying and Scaling Dapr Solutions

Chapter 10: Load Testing and Scaling Dapr

In this chapter, we will learn how to scale Dapr applications in a Kubernetes environment. After that, we will learn how to load test a Dapr solution by simulating user behavior with the Locust testing tool.

In this chapter, we will cover the following topics:

  • Scaling Dapr in Kubernetes
  • Load testing with Locust
  • Load testing Dapr
  • Autoscaling with KEDA

Load testing is an important practice in software development. It offers developers and operators a scientific approach, guided by practices and tools, to finding the best possible answer to various questions, such as how will this application react to an increase in requests? At which point will the application's response start degrading in terms of success rate and response time? Will the infrastructure be able to sustain a specific rate of requests with a certain level of performance with the allocated resources?

These questions explore both the technical...