{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "virtualMachineAdminUserName": {
      "defaultValue": "azadmin",
      "type": "string",
      "metadata": {
        "description": "Administrator Username for the local admin account"
      }
    },
    "virtualMachineAdminPassword": {
      "type": "securestring",
      "metadata": {
        "description": "Administrator password for the local admin account"
      }
    },
    "virtualMachineNamePrefix": {
      "defaultValue": "MyVM0",
      "type": "string",
      "maxLength": 15,
      "metadata": {
        "description": "Name of the virtual machine to be created"
      }
    },
    "virtualMachineCount": {
      "type": "int",
      "defaultValue": 3,
      "metadata": {
        "description": "Number of  virtual machines to be created"
      }
    },
    "virtualMachineSize": {
      "type": "string",
      "defaultValue": "Standard_DS2_v2",
      "allowedValues": [
        "Standard_DS1_v2",
        "Standard_DS2_v2",
        "Standard_DS3_v2",
        "Standard_DS4_v2",
        "Standard_DS5_v2"
      ],
      "metadata": {
        "description": "Virtual Machine Size"
      }
    },
    "imagerefid": {
	  "type": "string",
      "metadata": {
        "description": "Name of the Image"
      }
	},
    "dnsPrefixForPublicIP": {
      "type": "string",
      "minLength": 1,
      "maxLength": 14,
      "defaultValue": "[uniqueString(resourceGroup().id)]",
      "metadata": {
        "description": "Globally unique DNS prefix for the Public IPs used to access the Virtual Machines"
      }
    },
    "location": {
      "type": "string",
      "defaultValue": "[resourceGroup().location]",
      "metadata": {
        "description": "Location for all resources."
      }
    }
  },
  "variables": {
    "myVNETName": "myVNET",
    "myVNETPrefix": "10.0.0.0/16",
    "myVNETSubnet1Name": "Subnet1",
    "myVNETSubnet1Prefix": "10.0.0.0/24",
    "diagnosticStorageAccountName": "[concat('diagst', uniqueString(resourceGroup().id))]",
    "operatingSystemValues": {
      "Server2012R2": {
        "PublisherValue": "MicrosoftWindowsServer",
        "OfferValue": "WindowsServer",
        "SkuValue": "2012-R2-Datacenter"
      },
      "Server2016": {
        "PublisherValue": "MicrosoftWindowsServer",
        "OfferValue": "WindowsServer",
        "SkuValue": "2016-Datacenter"
      },
      "Server2019": {
        "PublisherValue": "MicrosoftWindowsServer",
        "OfferValue": "WindowsServer",
        "SkuValue": "2019-Datacenter"
      }
    },
    "subnetRef": "[resourceId('Microsoft.Network/virtualNetworks/subnets', variables('myVNETName'),  variables('myVNETSubnet1Name'))]",
    "networkSecurityGroupName": "default-NSG"
  },
  "resources": [
    {
      "comments": "Default Network Security Group for template",
      "type": "Microsoft.Network/networkSecurityGroups",
      "apiVersion": "2020-05-01",
      "name": "[variables('networkSecurityGroupName')]",
      "location": "[parameters('location')]",
      "properties": {
        "securityRules": [
          {
            "name": "default-allow-3389",
            "properties": {
              "priority": 1000,
              "access": "Allow",
              "direction": "Inbound",
              "destinationPortRange": "3389",
              "protocol": "Tcp",
              "sourceAddressPrefix": "*",
              "sourcePortRange": "*",
              "destinationAddressPrefix": "*"
            }
          }
        ]
      }
    },
    {
      "name": "[variables('myVNETName')]",
      "type": "Microsoft.Network/virtualNetworks",
      "location": "[parameters('location')]",
      "apiVersion": "2020-05-01",
      "dependsOn": [
        "[resourceId('Microsoft.Network/networkSecurityGroups', variables('networkSecurityGroupName'))]"
      ],
      "tags": {
        "displayName": "[variables('myVNETName')]"
      },
      "properties": {
        "addressSpace": {
          "addressPrefixes": [
            "[variables('myVNETPrefix')]"
          ]
        },
        "subnets": [
          {
            "name": "[variables('myVNETSubnet1Name')]",
            "properties": {
              "addressPrefix": "[variables('myVNETSubnet1Prefix')]",
              "networkSecurityGroup": {
                "id": "[resourceId('Microsoft.Network/networkSecurityGroups', variables('networkSecurityGroupName'))]"
              }
            }
          }
        ]
      }
    },
    {
      "name": "[variables('diagnosticStorageAccountName')]",
      "type": "Microsoft.Storage/storageAccounts",
      "location": "[parameters('location')]",
      "apiVersion": "2019-06-01",
      "sku": {
        "name": "Standard_LRS"
      },
      "tags": {
        "displayName": "diagnosticStorageAccount"
      },
      "kind": "StorageV2"
    },
    {
      "type": "Microsoft.Compute/virtualMachines",
      "name": "[concat(parameters('virtualMachineNamePrefix'), copyIndex(1))]",
      "apiVersion": "2020-06-01",
      "location": "[parameters('location')]",
      "copy": {
        "name": "VMcopy",
        "count": "[parameters('virtualMachineCount')]"
      },
      "properties": {
        "hardwareProfile": {
          "vmSize": "[parameters('virtualMachineSize')]"
        },
        "storageProfile": {
          "imageReference": {
              "id": "[parameters('imagerefid')]"
            },
          "osDisk": {
            "name": "[concat(parameters('virtualMachineNamePrefix'),copyIndex(1))]",
            "createOption": "FromImage",
            "managedDisk": {
              "storageAccountType": "Premium_LRS"
            },
            "caching": "ReadWrite"
          }
        },
        "osProfile": {
          "computerName": "[concat(parameters('virtualMachineNamePrefix'),copyIndex(1))]",
          "adminUsername": "[parameters('virtualMachineAdminUserName')]",
          "windowsConfiguration": {
            "provisionVMAgent": true
          },
          "adminPassword": "[parameters('virtualMachineAdminPassword')]"
        },
        "networkProfile": {
          "networkInterfaces": [
            {
              "id": "[resourceId('Microsoft.Network/networkInterfaces', concat(parameters('virtualMachineNamePrefix'), copyIndex(1), '-NIC1'))]"
            }
          ]
        },
        "diagnosticsProfile": {
          "bootDiagnostics": {
            "enabled": true,
            "storageUri": "[reference(resourceId('Microsoft.Storage/storageAccounts', variables('diagnosticStorageAccountName')), '2016-01-01').primaryEndpoints.blob]"
          }
        }
      },
      "dependsOn": [
    "[resourceId('Microsoft.Storage/storageAccounts/', variables('diagnosticStorageAccountName'))]",
        "[resourceId('Microsoft.Network/networkInterfaces', concat(parameters('virtualMachineNamePrefix'), copyIndex(1), '-NIC1'))]"
      ]
    },
    {
      "type": "Microsoft.Network/networkInterfaces",
      "name": "[concat(parameters('virtualMachineNamePrefix'), copyIndex(1), '-NIC1')]",
      "apiVersion": "2020-05-01",
      "location": "[parameters('location')]",
      "copy": {
        "name": "NICCopy",
        "count": "[parameters('virtualMachineCount')]"
      },
      "properties": {
        "ipConfigurations": [
          {
            "name": "ipconfig1",
            "properties": {
              "privateIPAllocationMethod": "Dynamic",
              "publicIPAddress": {
                "id": "[resourceId('Microsoft.Network/publicIPAddresses', concat(parameters('virtualMachineNamePrefix'), copyIndex(1), '-PIP1'))]"
              },
              "subnet": {
                "id": "[variables('subnetRef')]"
              }
            }
          }
        ],
        "enableIPForwarding": false
      },
      "dependsOn": [
        "[resourceId('Microsoft.Network/publicIPAddresses', concat(parameters('virtualMachineNamePrefix'), copyIndex(1), '-PIP1'))]",
        "[resourceId('Microsoft.Network/virtualNetworks/', variables('myVNETName'))]"
      ]
    },
    {
      "apiVersion": "2020-05-01",
      "type": "Microsoft.Network/publicIPAddresses",
      "name": "[concat(parameters('virtualMachineNamePrefix'), copyIndex(1), '-PIP1')]",
      "location": "[parameters('location')]",
      "copy": {
        "name": "PIPCopy",
        "count": "[parameters('virtualMachineCount')]"
      },
      "tags": {
        "displayName": "[concat(parameters('virtualMachineNamePrefix'), copyIndex(1), '-PIP1')]"
      },
      "properties": {
        "publicIPAllocationMethod": "Dynamic",
        "dnsSettings": {
          "domainNameLabel": "[concat(parameters('dnsPrefixForPublicIP'), copyIndex(1))]"
        }
      }
    }
  ],
  "outputs": {}
}