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

Understanding test types

In traditional software development, tests were often executed when development was complete, the application was declared dev-done, the feature set was frozen, or a similar situation. After declaring the development done, testing was performed, and often, a long period of going back and forth between testing and bug fixing started. The result was often that many bugs were still found after going live.

Shifting left is a testing principle that states that automated testing should be done earlier in the development process. If all activities involved with software development are drawn on a line from inception to release, then shifting left means moving automated testing activities closer to inception.

To do this, a wide selection of different types of tests is recognized—for example, unit tests, integration tests, and system tests. Different sources can suggest different types of tests, but these are some of the more well-known types. No matter...