Book Image

Azure DevOps Explained

By : Sjoukje Zaal, Stefano Demiliani, Amit Malik
5 (1)
Book Image

Azure DevOps Explained

5 (1)
By: Sjoukje Zaal, Stefano Demiliani, Amit Malik

Overview of this book

Developing applications for the cloud involves changing development methodologies and procedures. Continuous integration and continuous deployment (CI/CD) processes are a must today, but are often difficult to implement and adopt. Azure DevOps is a Microsoft Azure cloud service that enhances your application development life cycle and enables DevOps capabilities. Starting with a comprehensive product overview, this book helps you to understand Azure DevOps and apply DevOps techniques to your development projects. You'll find out how to adopt DevOps techniques for your development processes by using built-in Azure DevOps tools. Throughout the course of this book, you'll also discover how to manage a project with the help of project management techniques such as Agile and Scrum, and then progress toward development aspects such as source code management, build pipelines, code testing and artifacts, release pipelines, and GitHub integration. As you learn how to implement DevOps practices, this book will also provide you with real-world examples and scenarios of DevOps adoption. By the end of this DevOps book, you will have learned how to adopt and implement Azure DevOps features in your real-world development processes.
Table of Contents (17 chapters)
1
Section 1: DevOps Principles and Azure DevOps Project Management
4
Section 2: Source Code and Builds
9
Section 3: Artifacts and Deployments
12
Section 4: Advanced Features of Azure DevOps

Using Feature Flags to test in production

In this demonstration, we are going to create a new .NET Core application in Visual Studio Code. Then, we are going to implement a Feature Flag for this application.

We are going to add a very basic Feature Flag that changes the welcome message from Welcome to Welcome to Learn Azure DevOps. This is only going to be tested by a subset of users. Therefore, we need to open Visual Studio Code and create a new Razor application with .NET Core. I have created a new folder on my local filesystem called FeatureFlags for this. Open this folder in Visual Studio Code. Check the next section for the detailed steps.

Creating a new .NET Core application

To create a new .NET Core application, follow these steps:

  1. With Visual Studio Code open, click on Terminal > New terminal from the top menu.
  2. In the Terminal, add the following line of code to create a new project:
    dotnet new webapp -o RazorFeatureFlags
    code -r RazorFeatureFlags
  3. ...