Create VM from existing VHD

azuredeploy.json

{
  "$schema": "https://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "vmName": {
      "type": "string",
      "defaultValue": "newvm",
      "metadata": {
        "description": "Name of the VM"
      }
    },
    "osType": {
      "type": "string",
      "allowedValues": [
        "Windows",
        "Linux"
      ],
      "defaultValue": "Linux",
      "metadata": {
        "description": "Type of OS on the existing vhd"
      }
    },
    "osDiskVhdUri": {
      "type": "string",
      "metadata": {
        "description": "Uri of the existing VHD in ARM standard or premium storage"
      }
    },
    "vmSize": {
      "type": "string",
      "defaultValue": "Standard_D2s_v3",
      "metadata": {
        "description": "Size of the VM"
      }
    },
    "vNetNewOrExisting": {
      "type": "string",
      "defaultValue": "new",
      "allowedValues": [
        "new",
        "existing"
      ],
      "metadata": {
        "description": "Specify whether to create a new or existing virtual network for the VM."
      }
    },
    "virtualNetworkName": {
      "type": "string",
      "defaultValue": "newVnet",
      "metadata": {
        "description": "Name of the existing VNET"
      }
    },
    "virtualNetworkResourceGroup": {
      "type": "string",
      "defaultValue": "[resourceGroup().name]",
      "metadata": {
        "description": "Name of the existing VNET resource group"
      }
    },
    "subnetName": {
      "type": "string",
      "defaultValue": "subnet-1",
      "metadata": {
        "description": "Name of the subnet in the virtual network you want to use"
      }
    },
    "dnsNameForPublicIP": {
      "type": "string",
      "defaultValue": "[concat('vm-', uniqueString(resourceGroup().id))]",
      "metadata": {
        "description": "Unique DNS Name for the Public IP used to access the Virtual Machine."
      }
    },
    "location": {
      "type": "string",
      "defaultValue": "[resourceGroup().location]",
      "metadata": {
        "description": "Location for all resources."
      }
    }
  },
  "variables": {
    "diagStorageAccountName": "[concat(uniquestring(resourceGroup().id), 'specvm')]",
    "subnetRef": "[resourceId(parameters('virtualNetworkResourceGroup'), 'Microsoft.Network/virtualNetworks/subnets', parameters('virtualNetworkName'),  parameters('subnetName'))]",
    "nicName": "nic",
    "publicIPAddressName": "publicIp"
  },
  "resources": [
    {
      "condition": "[equals(parameters('vNetNewOrExisting'), 'new')]",
      "apiVersion": "2018-10-01",
      "type": "Microsoft.Network/virtualNetworks",
      "name": "[parameters('virtualNetworkName')]",
      "location": "[parameters('location')]",
      "properties": {
        "addressSpace": {
          "addressPrefixes": [
            "10.0.0.0/16"
          ]
        },
        "subnets": [
          {
            "name": "[parameters('subnetName')]",
            "properties": {
              "addressPrefix": "10.0.0.0/24"
            }
          }
        ]
      }
    },
    {
      "apiVersion": "2018-10-01",
      "type": "Microsoft.Network/publicIPAddresses",
      "name": "[variables('publicIPAddressName')]",
      "location": "[parameters('location')]",
      "tags": {
        "displayName": "PublicIPAddress"
      },
      "properties": {
        "publicIPAllocationMethod": "Dynamic",
        "dnsSettings": {
          "domainNameLabel": "[parameters('dnsNameForPublicIP')]"
        }
      }
    },
    {
      "apiVersion": "2018-10-01",
      "type": "Microsoft.Network/networkInterfaces",
      "name": "[variables('nicName')]",
      "location": "[parameters('location')]",
      "dependsOn": [
        "[variables('publicIPAddressName')]"
      ],
      "tags": {
        "displayName": "NetworkInterface"
      },
      "properties": {
        "ipConfigurations": [
          {
            "name": "ipconfig1",
            "properties": {
              "privateIPAllocationMethod": "Dynamic",
              "publicIPAddress": {
                "id": "[resourceId('Microsoft.Network/publicIPAddresses', variables('publicIPAddressName'))]"
              },
              "subnet": {
                "id": "[variables('subnetRef')]"
              }
            }
          }
        ]
      }
    },
    {
      "apiVersion": "2018-10-01",
      "type": "Microsoft.Compute/virtualMachines",
      "name": "[parameters('vmName')]",
      "location": "[parameters('location')]",
      "tags": {
        "displayName": "VirtualMachine"
      },
      "dependsOn": [
        "[variables('nicName')]"
      ],
      "properties": {
        "hardwareProfile": {
          "vmSize": "[parameters('vmSize')]"
        },
        "storageProfile": {
          "osDisk": {
            "name": "[concat(parameters('vmName'),'-osdisk')]",
            "osType": "[parameters('osType')]",
            "createOption": "Attach",
            "vhd": {
              "uri": "[parameters('osDiskVhdUri')]"
            },
            "caching": "ReadWrite"
          }
        },
        "networkProfile": {
          "networkInterfaces": [
            {
              "id": "[resourceId('Microsoft.Network/networkInterfaces', variables('nicName'))]"
            }
          ]
        },
        "diagnosticsProfile": {
          "bootDiagnostics": {
            "enabled": false
          }
        }
      }
    }
  ]
}