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Azure Resource Manager (ARM) is a service provided by Microsoft Azure for the deployment, management, and monitoring of resources in the cloud. It acts as a layer that allows users to create, update, and delete resources within their Azure subscription. Resource Manager enables us to work with the resources in our solution as a group, rather than handling them individually.
With ARM, users can:
One of the key features of ARM is ARM templates, which are JSON files that define the resources you need to deploy for your solution. Think of an ARM template as a blueprint for your Azure applications or solutions.
ARM templates allow you to:
The structure of an ARM template is typically divided into the following sections:
$schema
: Specifies the location of the JSON schema file that describes the version of the template language.contentVersion
: Specifies the version of the ARM template (user-defined).parameters
: Provide values during deployment that allow the same template to be used with different environments.variables
: Define values that are reused in your templates. They can be constructed from parameter values.functions
: Create customized functions that you can call within the template to define complex expressions.resources
: Specify the resources to deploy.outputs
: Return values from the deployed resources.{
<span>”$schema”: “https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#”, </span>
<span>”contentVersion”: “1.0.0.0”,</span>
<span>”parameters”: {</span>
<span>”storageAccountName”: {</span>
<span>”type”: “string”,</span>
<span>”metadata”: {</span>
<span>”description”: “Name of the storage account”</span>
<span>}</span>
<span>}</span>
<span>},</span>
<span>”variables”: {</span>
<span>”location”: “westus”</span>
<span>},</span>
<span>”resources”: [</span>
<span>{</span>
<span>”type”: “Microsoft.Storage/storageAccounts”,</span>
<span>”apiVersion”: “2019-06-01″,</span>
<span>”name”: “[parameters(‘storageAccountName’)]”,</span>
<span>”location”: “[variables(‘location’)]”,</span>
<span>”sku”: {</span>
<span>”name”: “Standard_LRS”</span>
<span>},</span>
<span>”kind”: “StorageV2″,</span>
<span>”properties”: {}</span>
<span>}</span>
<span>],</span>
<span>”outputs”: {</span>
<span>”storageAccountName”: {</span>
<span>”type”: “string”,</span>
<span>”value”: “[parameters(‘storageAccountName’)]”</span>
<span>}</span>
<span>}</span>
}
In this example, an ARM template is defined to create a storage account. It uses a parameter to receive the storage account name and a variable for the location. The resource section defines the storage account with the necessary properties and apiVersion. This allows for a standard deployment pattern across different environments such as development, testing, and production.
When deploying resources using ARM templates, the deployment can be done in incremental mode or complete mode:
In conclusion, Azure Resource Manager and ARM templates give you a powerful, efficient, and flexible toolset to manage and deploy Azure resources, offering consistency, repeatability, and infrastructure as code for your Azure environments. Understanding and utilizing ARM and ARM templates is essential for anyone looking to work extensively within Azure and is especially relevant for the AZ-900 Microsoft Azure Fundamentals exam.
Azure Resource Manager is the deployment and management service for Azure, providing a management layer that enables you to create, update, and delete resources in your Azure account.
ARM templates are written in JSON (JavaScript Object Notation), not XML.
Answer: A, C, D
Azure Resource Manager offers access control, automation, and template deployment as part of its resource management features. While it can be involved in the deployment and management of virtual machines and handles resources associated with billing, it is not directly responsible for billing itself or VM creation independently of ARM templates or tools.
ARM templates are typically scoped to a single resource group and region. Deployments to multiple regions would require multiple templates or the duplication of resource definitions within a single template, accommodating different locations.
ARM templates support the use of variables, parameters, and expressions to customize deployments, thereby allowing for reusable, dynamic templates that can be tailored for different scenarios.
Answer: A. Complete, Incremental
Azure Resource Manager deployment modes include Complete and Incremental. Complete mode deletes resources that exist in the resource group but are not in the template. Incremental mode leaves unchanged resources that exist in the resource group but are not in the template.
Answer: A, B, C
ARM templates can be used to define infrastructure components such as virtual machines, networking components, and access policies. Subscription-level quotas are a billing and subscription management concern and are typically not defined in ARM templates.
Users with appropriate role-based access control (RBAC) permissions, such as contributor or owner, can execute ARM template deployments. It is not limited to subscription owners.
Answer: C. The same template can be deployed multiple times with the same outcome
Idempotency means that a template can be deployed multiple times without changing the result beyond the initial application, given that the same parameters and external conditions apply.
ARM templates can be deployed using various methods, including the Azure Portal, Azure PowerShell, and Azure CLI, providing flexibility to users depending on their preferences and the task requirements.
Azure Resource Manager is the deployment and management service for Azure that enables you to manage and organize resources, like virtual machines, storage accounts, and networking resources, in groups called Resource Groups.
Azure Resource Manager provides several benefits, such as
Enables you to deploy, manage, and monitor resources as a group rather than individually.
Enables you to view and track resource utilization and costs.
What is an Azure Resource Group?
What are ARM templates?
What are the benefits of using ARM templates?
Enable you to define and deploy infrastructure and configuration as code.
Enable you to create and manage infrastructure and configuration at scale.
Enable you to reproduce your infrastructure and configuration consistently in different environments.
The Azure Quickstart Templates repository is a public repository of hundreds of pre-built ARM templates that you can use to deploy common solutions in Azure. The templates are designed to be easy to use and customize, and they cover a wide range of scenarios, such as virtual machines, storage, networking, databases, web applications, and more.
The Azure Resource Manager deployment model is a way to organize and manage resources in Azure. In this model, you define resources and their dependencies in a declarative template, and then you deploy the resources to a Resource Group. The template and its resources are stored in the Resource Group, and you can deploy, manage, and monitor them as a unit.
The classic deployment model is an older way to deploy and manage resources in Azure that is being phased out in favor of the Azure Resource Manager deployment model. In the classic model, resources are not organized into Resource Groups, and deployment is performed in a procedural manner rather than in a declarative manner using templates.
Azure Resource Manager Explorer is a web-based tool that enables you to browse and manage the resources in your Azure subscription. You can view the hierarchy of resources, drill down into the properties of individual resources, and perform management tasks, such as starting or stopping a virtual machine or deleting a resource.
There are several ways to deploy an ARM template, such as 1- Using Azure Portal You can use the Azure Portal to create a new deployment by selecting a template, providing parameter values, and submitting the deployment. 2- Using Azure PowerShell You can use Azure PowerShell to deploy a template by running the New-AzResourceGroupDeployment cmdlet and specifying the
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