Introduction

Azure Resource Manager (ARM) templates allow you to define your infrastructure as code. In this guide, we will modify an existing ARM template to deploy a Virtual Network (VNet) in Azure and then deploy it using the Azure CLI.

Task Overview

We have an ARM template that defines a Virtual Network. Our goal is to:

  1. Change the VNet name to arm-vnet-test.
  2. Update the address prefix to 192.168.0.0/16.
  3. Add a tag named Environment with the value Azure-Learning.

Updated ARM Template

Below is the modified ARM template:

{
    "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
    "contentVersion": "1.0.0.0",
    "parameters": {},
    "functions": [],
    "variables": {},
    "resources": [
        {
            "name": "arm-vnet-test",
            "type": "Microsoft.Network/virtualNetworks",
            "apiVersion": "2023-11-01",
            "location": "[resourceGroup().location]",
            "tags": {
                "displayName": "virtualNetwork1",
                "Environment": "Azure-Learning"
            },
            "properties": {
                "addressSpace": {
                    "addressPrefixes": [
                        "192.168.0.0/16"
                    ]
                }
            }
        }
    ],
    "outputs": {}
}

Deploying the ARM Template

Once the template is ready, use the Azure CLI to deploy it. Replace <resourceGroupName> with the name of your Azure resource group and <file-path> with the actual file path of your template.

az deployment group create --resource-group <resourceGroupName> --template-file <file-path>

To list the resource groups in your subscription, use az group list.

az group list