Book Image

Designing and Implementing Microsoft DevOps Solutions AZ-400 Exam Guide - Second Edition

By : Subhajit Chatterjee, Swapneel Deshpande, Henry Been, Maik van der Gaag
Book Image

Designing and Implementing Microsoft DevOps Solutions AZ-400 Exam Guide - Second Edition

By: Subhajit Chatterjee, Swapneel Deshpande, Henry Been, Maik van der Gaag

Overview of this book

The AZ-400 Designing and Implementing Microsoft DevOps Solutions certification helps DevOps engineers and administrators get to grips with practices such as continuous integration and continuous delivery (CI/CD), containerization, and zero downtime deployments using Azure DevOps Services. This new edition is updated with advanced topics such as site reliability engineering (SRE), continuous improvement, and planning your cloud transformation journey. The book begins with the basics of CI/CD and automated deployments, and then moves ahead to show you how to apply configuration management and Infrastructure as Code (IaC) along with managing databases in DevOps scenarios. As you make progress, you’ll explore fitting security and compliance with DevOps and find out how to instrument applications and gather metrics to understand application usage and user behavior. This book will also help you implement a container build strategy and manage Azure Kubernetes Services. Lastly, you’ll discover quick tips and tricks to confidently apply effective DevOps practices and learn to create your own Azure DevOps organization. By the end of this DevOps book, you'll have gained the knowledge needed to ensure seamless application deployments and business continuity.
Table of Contents (27 chapters)
1
Part 1 – Digital Transformation through DevOps
5
Part 2 – Getting to Continuous Delivery
9
Part 3 – Expanding Your DevOps Pipeline
15
Part 4 – Closing the Loop
18
Part 5 – Advanced Topics

Implementing CD strategies

Before we deploy an application continuously, it is important to think about the strategy we should use. Just doing deployment after deployment may have more risks associated with it than a business is willing to accept. It is important to think about how to deal with issues that might occur during or after deploying a new version of your application.

There are a few deployment strategies that can be applied to reduce the risks that might come with deployments, all of which will be covered in this section. Please note that it is possible to combine one or more of the following patterns. For example, it is perfectly possible to use a blue-green strategy for every ring in a ring-based deployment. Also, all deployment strategies can be combined with the use of feature flags.

Blue-green deployments

Blue-green deployments is a technique where a new version of an application never gets deployed to the production servers directly. Instead, it gets deployed...