ARM Template - Use Copy Loop to Deploy Multiple Data Disks on a Virtual Machine

linux-vm-multiple-data-disks.json

{
    "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
    "contentVersion": "1.0.0.0",
    "parameters": {
        "dataDiskCount": {
            "type": "int",
            "metadata": {
                "description": "Number of data disks to add to the VM."
            }
        }
    },
    "resources": [
        {
            "name": "ubuntuVM-nic",
            "type": "Microsoft.Network/networkInterfaces",
            "apiVersion": "2019-11-01",
            "location": "[resourceGroup().location]",
            "properties": {
                "ipConfigurations": [
                    {
                        "name": "ipconfig",
                        "properties": {
                            "privateIPAllocationMethod": "Dynamic",
                            "subnet": {
                                "id": "[resourceId('network-rg', 'Microsoft.Network/virtualNetworks/subnets', 'vnet1', 'snet1')]"
                            }
                        }
                    }
                ]
            }
        },
        {
            "name": "ubuntuVM",
            "type": "Microsoft.Compute/virtualMachines",
            "apiVersion": "2019-07-01",
            "location": "[resourceGroup().location]",
            "dependsOn": [
                "[resourceId('Microsoft.Network/networkInterfaces', 'ubuntuVM-nic')]"
            ],
            "properties": {
                "hardwareProfile": {
                    "vmSize": "Standard_B1s"
                },
                "osProfile": {
                    "computerName": "ubuntuVM",
                    "adminUsername": "cloud_admin",
                    "adminPassword": "N0t@RealPa$$w0rd"
                },
                "storageProfile": {
                    "imageReference": {
                        "publisher": "Canonical",
                        "offer": "UbuntuServer",
                        "sku": "16.04-LTS",
                        "version": "latest"
                    },
                    "osDisk": {
                        "name": "ubuntuVM-OSDisk",
                        "caching": "ReadWrite",
                        "createOption": "FromImage"
                    },
                    "copy": [
                        {
                            "name": "dataDisks",
                            "count": "[parameters('dataDiskCount')]",
                            "input": {
                                "lun": "[copyIndex('dataDisks')]",
                                "name": "[concat('ubuntuVM-datadisk', copyIndex('dataDisks'))]",
                                "createOption": "Empty",
                                "diskSizeGB": 32
                            }
                        }
                    ]
                },
                "networkProfile": {
                    "networkInterfaces": [
                        {
                            "id": "[resourceId('Microsoft.Network/networkInterfaces', 'ubuntuVM-nic')]"
                        }
                    ]
                }
            }
        }
    ]
}