Azure Resource Manager Templates

Examine the Azure Resource Manager template hierarchy.

You'll learn how to use Azure Resource Manager templates (ARM templates) to implement infrastructure as code in this article. We'll go over the sections of an ARM template, learn how to deploy your ARM template to Azure, and go over the resources portion in depth.

What is infrastructure as code, and how does it work?

Infrastructure as code allows you to express the infrastructure that your application requires in code.
You can maintain both your application code and everything you need to deploy your application in a common code repository with infrastructure as code. The following are some of the benefits of infrastructure as code:

• Configurations that are consistent
• Scalability has been improved.
• More rapid deployments
• Improved traceability

What is an ARM template, and how does it function?

ARM templates, which are JavaScript Object Notation (JSON) files, establish the architecture and parameters for your deployment. The template employs declarative syntax. Declarative syntax is a way of defining the structure and elements that describe how resources will appear without having to specify the control flow. Declarative syntax is different from the imperative syntax, which uses commands to do computer activities. The goal of imperative scripting is to define each step of the resource deployment process.

You can declare what you want to deploy using ARM templates rather than having to write the programming commands to make it happen. An ARM template specifies the resources and characteristics for those resources.

We will discuss the:

Advantages of ARM Templates

You can utilize ARM templates to automate deployments and use infrastructure as code (IaC). Your infrastructure and development initiatives will benefit from the template code. IaC files, like application code, can be stored in a source repository and versioned.

Idempotent means that you can use the same ARM template multiple times and get the same resource types in the same state.

Resource Manager coordinates the deployment of resources to ensure that they are created in the proper order. Resources will be produced in parallel whenever possible, making ARM template deployments faster than scripted deployments.

Validation is also included into Resource Manager. Before initiating the deployment, it examines the template to ensure that it will succeed.

You can break down your ARM templates into smaller, reusable components as your deployments become more complicated. At deployment time, you can join these smaller templates together. Templates can also be nestled inside other templates.

You can review your deployment history and get information about the status of your deployment via the Azure site. All parameters and results are displayed in the portal.