added JSON for arm template

Author: Michael Bender

articles/virtual-network-manager/how-to-manage-ip-addresses-network-manager.md

@@ -5,7 +5,7 @@ author: mbender-ms
 ms.author: mbender
 ms.service: azure-virtual-network-manager
 ms.topic: how-to
-ms.date: 10/08/2024
+ms.date: 10/25/2024
 ms.custom:  references_regions
 #customer intent: As a network administrator, I want to learn how to manage IP addresses with Azure Virtual Network Manager so that I can create and assign IP address pools to my virtual networks.
 ---
@@ -170,54 +170,87 @@ In this step, you create a virtual network with a nonoverlapping CIDR range by a
 
 # [Azure Resource Manager Template](#tab/armtemplate)
 
+In this step, you create a virtual network with a nonoverlapping CIDR range using an Azure Resource Manager template. 
+
 1. Sign in to Azure and search for **Deploy a custom template**.
 2. In the **Custom deployment** window, select **Build your own template in the editor**.
 3. Copy the following template into the editor:
 
     ```json
-    {
-        "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
-        "contentVersion": "1.0.0.0",
-        "metadata": {},
-        "parameters": {
-            "vnetName": {
-            "type": "string",
-            "defaultValue": "VNet1",
+   {
+    "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
+    "contentVersion": "1.0.0.0",
+    "parameters": {
+        "virtualNetworkName": {
+            "defaultValue": "virtual-network",
+            "type": "String",
             "metadata": {
                 "description": "VNet name"
             }
-            },
-            "location": {
-            "type": "string",
+        },
+        "location": {
             "defaultValue": "[resourceGroup().location]",
+            "type": "String",
             "metadata": {
                 "description": "Location for all resources."
             }
+        },
+        "poolResourceID": {
+            "defaultValue": "/subscriptions/<subscriptionId>/resourceGroups/resourceGroupName/providers/Microsoft.Network/networkManagers/<networkManagerName>/ipamPools/<ipAddressPoolName>",
+            "type": "String",
+            "metadata": {
+                "description": "Enter the Resource ID for your IP Address Pool. You can find this in the JSON View in the resource's overview window."
             }
         },
-        "resources": [
-            {
+        "numberOfIPAddresses": {
+            "defaultValue": "256",
+            "type": "String",
+            "metadata": {
+                "description": "Enter the number of IP addresses for the virtual network."
+            }
+        }
+    },
+    "resources": [
+        {
             "type": "Microsoft.Network/virtualNetworks",
             "apiVersion": "2024-01-01",
-            "name": "[parameters('vnetName')]",
+            "name": "[parameters('virtualNetworkName')]",
             "location": "[parameters('location')]",
             "properties": {
                 "addressSpace": {
                     "ipamPoolPrefixAllocations": [
                         {
                             "pool": {
-                                "id": "/subscriptions/XXX/resourceGroups/ipam-test/providers/Microsoft.Network/networkManagers/IPAM-test/ipamPools/ALZ-app1"
+                                "id": "[parameters('poolResourceID')]"
                             },
-                            "numberOfIpAddresses": "65536"
+                            "numberOfIpAddresses": "[parameters('numberOfIPAddresses')]"
                         }
                     ]
                 }
             }
-            }
-        ]
-    }
+        }
+    ]
+}
 ```
 
+1. In the **Custom deployment** windows, enter or select the following information::
+
+| **Field** | **Description** |
+| --- | --- |
+| **Project details** |   |
+| Subscription | Select your subscription. |
+| Resource group | Select the resource group for the virtual network. In this case, the example uses **resource-group**. |
+| **Instance details** |   |
+| Region | Select the region for the virtual network. IP address pools must be in the same region as your virtual network in order to be associated. |
+| Virtual network name | Enter a name for the virtual network. The template will default to **virtual-network**. |
+| Location | Select the location for the virtual network. This will be the same as the region except all lower case and no spaces.</br>For example, if the region is **(US)westus2**, the location will be **westus2**. |
+
+:::image type="content" source="media/how-to-manage-ip-addresses/custom-deployment-template.png" alt-text="Screenshot of custom deployment page with values.":::
+
+> [!NOTE]
+> The **poolResourceID** parameter is the Resource ID for your IP Address Pool. You can find this in the JSON View in the resource's overview window.
+
+4. Select **Review + create** and then **Create** to create the virtual network.
 
 ## Next steps