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

Setting up Dapr on Kubernetes

At this stage, a Kubernetes cluster – specifically, AKS on Azure – is ready to accommodate our workload. We need to install Dapr before we can move on to the preparation phase for our applications.

In Chapter 1, Introducing Dapr, we used the following command, which we’ll use again here, to initialize Dapr in Kubernetes:

PS C:\Repos\dapr-samples\chapter08> dapr init -k
Making the jump to hyperspace...
Note: To install Dapr using Helm, see here:  https://docs.dapr.io/getting-started/install-dapr/#install-with-helm-advanced
Deploying the Dapr control plane to your cluster...
Success! Dapr has been installed to namespace dapr-system. To verify, run `dapr status -k’ in your terminal. To get started, go here: https://aka.ms/dapr-getting-started

The previous command installs and initializes the Dapr components in the cluster that correspond to the current Kubernetes configuration.

We can verify that the Dapr...