Book Image

Azure Resource Manager Templates Quick Start Guide

By : Ritesh Modi
Book Image

Azure Resource Manager Templates Quick Start Guide

By: Ritesh Modi

Overview of this book

Azure Resource Manager (ARM) templates are declarations of Azure resources in the JSON format to provision and maintain them using infrastructure as code. This book gives practical solutions and examples for provisioning and managing various Azure services using ARM templates. The book starts with an understanding of infrastructure as code, a refresher on JSON, and then moves on to explain the fundamental concepts of ARM templates. Important concepts like iteration, conditional evaluation, security, usage of expressions, and functions will be covered in detail. You will use linked and nested templates to create modular ARM templates. You will see how to create multiple instances of the same resources, how to nest and link templates, and how to establish dependencies between them. You will also learn about implementing design patterns, secure template design, the unit testing of ARM templates, and adopting best practices. By the end of this book, you will understand the entire life cycle of ARM templates and their testing, and be able to author them for complex deployments.
Table of Contents (12 chapters)
Free Chapter
1
Section 1: ARM Template Foundational Skills
6
Section 2: ARM Template Advanced Concepts

Understanding resourceId

Another important function used within an ARM template is the resourceId function. Every resource deployed on Azure has a friendly display name and can be used for referencing from both PowerShell and ARM templates. However, this display name is not used by Azure to identify resources.

Instead, Azure generates a unique URI for each deployed resource, which can be retrieved using the resourceIdfunction. Resources can be a parent resource, child resource, or even a child resource of another child resource. They all have unique identifier and can be uniformly identified using the resourceId function.

The format generated by resourceId is shown in the next code snippet. The items in {} brackets are values that are replaced with actual values of resources and its context. Readers will notice that resourceId uses a pattern to generate its unique identifier...