Book Image

Practical Microservices with Dapr and .NET - Second Edition

By : Davide Bedin
Book Image

Practical Microservices with Dapr and .NET - Second Edition

By: Davide Bedin

Overview of this book

This second edition 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 simplifies development while allowing you to work with multiple languages and platforms. Following a C# sample, you'll understand how Dapr's runtime, 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 for building 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. With a focus on deploying the Dapr sample application to an Azure Kubernetes Service cluster and to the Azure Container Apps serverless platform, you’ll see how to expose the Dapr application with NGINX, YARP, and Azure API Management. By the end of this book, you'll be able to write microservices easily by implementing industry best practices to solve problems related to distributed systems.
Table of Contents (20 chapters)
1
Part 1: Introduction to Dapr
5
Part 2: Building Microservices with Dapr
11
Part 3: Deploying and Scaling Dapr Solutions

Load testing with Locust

Load testing is a practice in software development that’s used to determine the performance of a complex system under load. This is generated by simulating the concurrent access of users. Load testing web resources, such as an API, usually requires multiple agents to be orchestrated, each with enough internet bandwidth and compute resources to simulate the activity of many users.

In our scenario, we plan to verify the performance and capabilities of our Biscotti Brutti Ma Buoni sample backend, implemented with Dapr and running on Kubernetes.

Locust is a popular open source load-testing tool. It allows you to define a user’s behavior with simple Python scripts and distribute these on as many worker nodes as needed, orchestrated by a master node. More information is available at https://locust.io/.

Important note

I learned about Locust from a GitHub repository (https://github.com/yorek/locust-on-azure) that was created by my colleague...