快速入門：使用 ARM 範本建立 Windows 虛擬機器規模設定

適用於： ✔️ Windows 虛擬機器 ✔️ 統一擴展集

備註

以下文章適用於統一虛擬機器規模集。建議使用彈性虛擬機器規模設定來應對新工作負載。在我們的彈性虛擬機器擴展集概觀中深入瞭解此新的協調流程模式。

虛擬機器擴展集可讓您部署和管理一組自動調整虛擬機器。您可以手動設定規模組中的 VM 數量，或定義規則，以根據 CPU、記憶體需求或網路流量等資源使用量自動設定。其後，Azure 負載平衡器會將流量分配到擴展集中的多個 VM 執行個體。在本快速入門中，您會建立虛擬機器擴展集，並使用 Azure Resource Manager 範本（ARM 範本）部署範例應用程式。

Azure Resource Manager 範本是 JavaScript 物件表示法（JSON）檔案，可定義專案的基礎結構和組態。範本使用宣告式語法。您可以描述預期的部署，而不需要撰寫程式設計命令順序來建立部署。

ARM 範本可讓您部署相關資源的群組。在單一範本中，您可以建立虛擬機器擴展集、安裝應用程式，並設定自動縮放規則。透過使用變數和參數，可以重複使用此範本來更新現有的擴展集，或建立其他擴展集。您可以透過 Azure 入口網站、Azure CLI、Azure PowerShell 或從持續整合/持續傳遞（CI/CD）管線部署範本。

如果您的環境符合必要條件，而且您很熟悉 ARM 範本，請選取 [部署至 Azure] 按鈕。範本會在 Azure 入口網站中開啟。

先決條件

如尚未擁有 Azure 訂用帳戶，請在開始之前先建立免費帳戶。

檢閱範本

本快速入門中使用的範本來自 Azure 快速入門範本。

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "metadata": {
    "_generator": {
      "name": "bicep",
      "version": "0.29.47.4906",
      "templateHash": "11422221168065527308"
    }
  },
  "parameters": {
    "vmssName": {
      "type": "string",
      "minLength": 3,
      "maxLength": 61,
      "metadata": {
        "description": "String used as a base for naming resources. Must be 3-61 characters in length and globally unique across Azure. A hash is prepended to this string for some resources, and resource-specific information is appended."
      }
    },
    "vmSku": {
      "type": "string",
      "defaultValue": "Standard_D2s_v3",
      "metadata": {
        "description": "Size of VMs in the VM Scale Set."
      }
    },
    "windowsOSVersion": {
      "type": "string",
      "defaultValue": "2022-datacenter-azure-edition",
      "allowedValues": [
        "2019-DataCenter-GenSecond",
        "2016-DataCenter-GenSecond",
        "2022-datacenter-azure-edition"
      ],
      "metadata": {
        "description": "The Windows version for the VM. This will pick a fully patched image of this given Windows version. Allowed values: 2008-R2-SP1, 2012-Datacenter, 2012-R2-Datacenter & 2016-Datacenter, 2019-Datacenter."
      }
    },
    "securityType": {
      "type": "string",
      "defaultValue": "TrustedLaunch",
      "allowedValues": [
        "Standard",
        "TrustedLaunch"
      ],
      "metadata": {
        "description": "Security Type of the Virtual Machine."
      }
    },
    "instanceCount": {
      "type": "int",
      "defaultValue": 3,
      "minValue": 1,
      "maxValue": 100,
      "metadata": {
        "description": "Number of VM instances (100 or less)."
      }
    },
    "singlePlacementGroup": {
      "type": "bool",
      "defaultValue": true,
      "metadata": {
        "description": "When true this limits the scale set to a single placement group, of max size 100 virtual machines. NOTE: If singlePlacementGroup is true, it may be modified to false. However, if singlePlacementGroup is false, it may not be modified to true."
      }
    },
    "adminUsername": {
      "type": "string",
      "defaultValue": "vmssadmin",
      "metadata": {
        "description": "Admin username on all VMs."
      }
    },
    "adminPassword": {
      "type": "securestring",
      "metadata": {
        "description": "Admin password on all VMs."
      }
    },
    "_artifactsLocation": {
      "type": "string",
      "defaultValue": "[deployment().properties.templateLink.uri]",
      "metadata": {
        "description": "The base URI where artifacts required by this template are located. For example, if stored on a public GitHub repo, you'd use the following URI: https://raw.githubusercontent.com/Azure/azure-quickstart-templates/master/201-vmss-windows-webapp-dsc-autoscale/."
      }
    },
    "_artifactsLocationSasToken": {
      "type": "securestring",
      "defaultValue": "",
      "metadata": {
        "description": "The sasToken required to access _artifactsLocation.  If your artifacts are stored on a public repo or public storage account you can leave this blank."
      }
    },
    "powershelldscZip": {
      "type": "string",
      "defaultValue": "DSC/InstallIIS.zip",
      "metadata": {
        "description": "Location of the PowerShell DSC zip file relative to the URI specified in the _artifactsLocation, i.e. DSC/IISInstall.ps1.zip"
      }
    },
    "webDeployPackage": {
      "type": "string",
      "defaultValue": "WebDeploy/DefaultASPWebApp.v1.0.zip",
      "metadata": {
        "description": "Location of the  of the WebDeploy package zip file relative to the URI specified in _artifactsLocation, i.e. WebDeploy/DefaultASPWebApp.v1.0.zip"
      }
    },
    "powershelldscUpdateTagVersion": {
      "type": "string",
      "defaultValue": "1.0",
      "metadata": {
        "description": "Version number of the DSC deployment. Changing this value on subsequent deployments will trigger the extension to run."
      }
    },
    "location": {
      "type": "string",
      "defaultValue": "[resourceGroup().location]",
      "metadata": {
        "description": "Location for all resources."
      }
    },
    "platformFaultDomainCount": {
      "type": "int",
      "defaultValue": 1,
      "metadata": {
        "description": "Fault Domain count for each placement group."
      }
    }
  },
  "variables": {
    "vmScaleSetName": "[toLower(substring(format('vmssName{0}', uniqueString(resourceGroup().id)), 0, 9))]",
    "longvmScaleSet": "[toLower(parameters('vmssName'))]",
    "addressPrefix": "10.0.0.0/16",
    "subnetPrefix": "10.0.0.0/24",
    "vNetName": "[format('{0}vnet', variables('vmScaleSetName'))]",
    "publicIPAddressName": "[format('{0}pip', variables('vmScaleSetName'))]",
    "subnetName": "[format('{0}subnet', variables('vmScaleSetName'))]",
    "loadBalancerName": "[format('{0}lb', variables('vmScaleSetName'))]",
    "publicIPAddressID": "[resourceId('Microsoft.Network/publicIPAddresses', variables('publicIPAddressName'))]",
    "lbProbeID": "[resourceId('Microsoft.Network/loadBalancers/probes', variables('loadBalancerName'), 'tcpProbe')]",
    "natPoolName": "[format('{0}natpool', variables('vmScaleSetName'))]",
    "bePoolName": "[format('{0}bepool', variables('vmScaleSetName'))]",
    "lbPoolID": "[resourceId('Microsoft.Network/loadBalancers/backendAddressPools', variables('loadBalancerName'), variables('bePoolName'))]",
    "natStartPort": 50000,
    "natEndPort": 50119,
    "natBackendPort": 3389,
    "nicName": "[format('{0}nic', variables('vmScaleSetName'))]",
    "ipConfigName": "[format('{0}ipconfig', variables('vmScaleSetName'))]",
    "frontEndIPConfigID": "[resourceId('Microsoft.Network/loadBalancers/frontendIPConfigurations', variables('loadBalancerName'), 'loadBalancerFrontEnd')]",
    "osType": {
      "publisher": "MicrosoftWindowsServer",
      "offer": "WindowsServer",
      "sku": "[parameters('windowsOSVersion')]",
      "version": "latest"
    },
    "securityProfileJson": {
      "uefiSettings": {
        "secureBootEnabled": true,
        "vTpmEnabled": true
      },
      "securityType": "[parameters('securityType')]"
    },
    "imageReference": "[variables('osType')]",
    "webDeployPackageFullPath": "[uri(parameters('_artifactsLocation'), format('{0}{1}', parameters('webDeployPackage'), parameters('_artifactsLocationSasToken')))]",
    "powershelldscZipFullPath": "[uri(parameters('_artifactsLocation'), format('{0}{1}', parameters('powershelldscZip'), parameters('_artifactsLocationSasToken')))]"
  },
  "resources": [
    {
      "type": "Microsoft.Network/loadBalancers",
      "apiVersion": "2023-04-01",
      "name": "[variables('loadBalancerName')]",
      "location": "[parameters('location')]",
      "properties": {
        "frontendIPConfigurations": [
          {
            "name": "LoadBalancerFrontEnd",
            "properties": {
              "publicIPAddress": {
                "id": "[variables('publicIPAddressID')]"
              }
            }
          }
        ],
        "backendAddressPools": [
          {
            "name": "[variables('bePoolName')]"
          }
        ],
        "inboundNatPools": [
          {
            "name": "[variables('natPoolName')]",
            "properties": {
              "frontendIPConfiguration": {
                "id": "[variables('frontEndIPConfigID')]"
              },
              "protocol": "Tcp",
              "frontendPortRangeStart": "[variables('natStartPort')]",
              "frontendPortRangeEnd": "[variables('natEndPort')]",
              "backendPort": "[variables('natBackendPort')]"
            }
          }
        ],
        "loadBalancingRules": [
          {
            "name": "LBRule",
            "properties": {
              "frontendIPConfiguration": {
                "id": "[variables('frontEndIPConfigID')]"
              },
              "backendAddressPool": {
                "id": "[variables('lbPoolID')]"
              },
              "protocol": "Tcp",
              "frontendPort": 80,
              "backendPort": 80,
              "enableFloatingIP": false,
              "idleTimeoutInMinutes": 5,
              "probe": {
                "id": "[variables('lbProbeID')]"
              }
            }
          }
        ],
        "probes": [
          {
            "name": "tcpProbe",
            "properties": {
              "protocol": "Tcp",
              "port": 80,
              "intervalInSeconds": 5,
              "numberOfProbes": 2
            }
          }
        ]
      },
      "dependsOn": [
        "[resourceId('Microsoft.Network/publicIPAddresses', variables('publicIPAddressName'))]"
      ]
    },
    {
      "type": "Microsoft.Compute/virtualMachineScaleSets",
      "apiVersion": "2023-09-01",
      "name": "[variables('vmScaleSetName')]",
      "location": "[parameters('location')]",
      "sku": {
        "name": "[parameters('vmSku')]",
        "tier": "Standard",
        "capacity": "[parameters('instanceCount')]"
      },
      "properties": {
        "overprovision": true,
        "upgradePolicy": {
          "mode": "Automatic"
        },
        "singlePlacementGroup": "[parameters('singlePlacementGroup')]",
        "platformFaultDomainCount": "[parameters('platformFaultDomainCount')]",
        "virtualMachineProfile": {
          "storageProfile": {
            "osDisk": {
              "caching": "ReadWrite",
              "createOption": "FromImage"
            },
            "imageReference": "[variables('imageReference')]"
          },
          "osProfile": {
            "computerNamePrefix": "[variables('vmScaleSetName')]",
            "adminUsername": "[parameters('adminUsername')]",
            "adminPassword": "[parameters('adminPassword')]"
          },
          "securityProfile": "[if(equals(parameters('securityType'), 'TrustedLaunch'), variables('securityProfileJson'), null())]",
          "networkProfile": {
            "networkInterfaceConfigurations": [
              {
                "name": "[variables('nicName')]",
                "properties": {
                  "primary": true,
                  "ipConfigurations": [
                    {
                      "name": "[variables('ipConfigName')]",
                      "properties": {
                        "subnet": {
                          "id": "[reference(resourceId('Microsoft.Network/virtualNetworks', variables('vNetName')), '2023-04-01').subnets[0].id]"
                        },
                        "loadBalancerBackendAddressPools": [
                          {
                            "id": "[variables('lbPoolID')]"
                          }
                        ]
                      }
                    }
                  ]
                }
              }
            ]
          },
          "extensionProfile": {
            "extensions": [
              {
                "name": "Microsoft.Powershell.DSC",
                "properties": {
                  "publisher": "Microsoft.Powershell",
                  "type": "DSC",
                  "typeHandlerVersion": "2.9",
                  "autoUpgradeMinorVersion": true,
                  "forceUpdateTag": "[parameters('powershelldscUpdateTagVersion')]",
                  "settings": {
                    "configuration": {
                      "url": "[variables('powershelldscZipFullPath')]",
                      "script": "InstallIIS.ps1",
                      "function": "InstallIIS"
                    },
                    "configurationArguments": {
                      "nodeName": "localhost",
                      "WebDeployPackagePath": "[variables('webDeployPackageFullPath')]"
                    }
                  }
                }
              }
            ]
          }
        }
      },
      "dependsOn": [
        "[resourceId('Microsoft.Network/virtualNetworks', variables('vNetName'))]"
      ]
    },
    {
      "type": "Microsoft.Network/publicIPAddresses",
      "apiVersion": "2023-04-01",
      "name": "[variables('publicIPAddressName')]",
      "location": "[parameters('location')]",
      "properties": {
        "publicIPAllocationMethod": "Static",
        "dnsSettings": {
          "domainNameLabel": "[variables('longvmScaleSet')]"
        }
      }
    },
    {
      "type": "Microsoft.Network/virtualNetworks",
      "apiVersion": "2023-04-01",
      "name": "[variables('vNetName')]",
      "location": "[parameters('location')]",
      "properties": {
        "addressSpace": {
          "addressPrefixes": [
            "[variables('addressPrefix')]"
          ]
        },
        "subnets": [
          {
            "name": "[variables('subnetName')]",
            "properties": {
              "addressPrefix": "[variables('subnetPrefix')]"
            }
          }
        ]
      }
    },
    {
      "type": "Microsoft.Insights/autoscalesettings",
      "apiVersion": "2022-10-01",
      "name": "autoscalehost",
      "location": "[parameters('location')]",
      "properties": {
        "name": "autoscalehost",
        "targetResourceUri": "[resourceId('Microsoft.Compute/virtualMachineScaleSets', variables('vmScaleSetName'))]",
        "enabled": true,
        "profiles": [
          {
            "name": "Profile1",
            "capacity": {
              "minimum": "1",
              "maximum": "10",
              "default": "1"
            },
            "rules": [
              {
                "metricTrigger": {
                  "metricName": "Percentage CPU",
                  "metricResourceUri": "[resourceId('Microsoft.Compute/virtualMachineScaleSets', variables('vmScaleSetName'))]",
                  "timeGrain": "PT1M",
                  "statistic": "Average",
                  "timeWindow": "PT5M",
                  "timeAggregation": "Average",
                  "operator": "GreaterThan",
                  "threshold": 50
                },
                "scaleAction": {
                  "direction": "Increase",
                  "type": "ChangeCount",
                  "value": "1",
                  "cooldown": "PT5M"
                }
              },
              {
                "metricTrigger": {
                  "metricName": "Percentage CPU",
                  "metricResourceUri": "[resourceId('Microsoft.Compute/virtualMachineScaleSets', variables('vmScaleSetName'))]",
                  "timeGrain": "PT1M",
                  "statistic": "Average",
                  "timeWindow": "PT5M",
                  "timeAggregation": "Average",
                  "operator": "LessThan",
                  "threshold": 30
                },
                "scaleAction": {
                  "direction": "Decrease",
                  "type": "ChangeCount",
                  "value": "1",
                  "cooldown": "PT5M"
                }
              }
            ]
          }
        ]
      },
      "dependsOn": [
        "[resourceId('Microsoft.Compute/virtualMachineScaleSets', variables('vmScaleSetName'))]"
      ]
    }
  ],
  "outputs": {
    "applicationUrl": {
      "type": "string",
      "value": "[uri(format('http://{0}', reference(resourceId('Microsoft.Network/publicIPAddresses', variables('publicIPAddressName')), '2023-04-01').dnsSettings.fqdn), '/MyApp')]"
    }
  }
}

這些資源定義在下列範本中：

定義規模設定

若要使用範本建立規模，請定義適當的資源。虛擬機器擴展集資源類型的核心部分如下：

房產	物業描述	範例模板值
型別	要建立的 Azure 資源類型	Microsoft.Compute/virtualMachineScaleSets
名稱	擴展集名稱	myScaleSet
位置	要建立擴展集的位置	美國東部
sku.name	每個擴展集執行個體的 VM 大小	Standard_A1
sku容量	最初要建立的 VM 執行個體數目	2
升級政策.mode	發生變更時的 VM 執行個體升級模式	自動
imageReference	要用於 VM 執行個體的平台或自訂映像	Microsoft Windows Server 2016 資料中心
osProfile.computerNamePrefix	每個虛擬機(VM)執行個體的名稱前置詞	myvmss
osProfile.admin使用者名稱	每個 VM 執行個體的使用者名稱	AzureUser
osProfile.管理員密碼	每個 VM 執行個體的密碼	P@ssw0rd！

若要自訂擴展集範本，您可以變更 VM 大小或初始容量。另一種選擇是使用不同的平台或自定義圖像。

新增範例應用程式

若要測試您的擴展集，請安裝基本 Web 應用程式。當您部署擴展集時，VM 延伸模組可以提供後置部署設定和自動化工作，例如安裝應用程式。腳本可以從 Azure 儲存體或 GitHub 下載，或在延伸模組執行階段提供給 Azure 入口網站。若要將延伸模組套用至擴展集，請將 extensionProfile 區段新增至上述資源範例。延伸模組設定檔通常會定義下列屬性：

延伸模組類型
擴充功能發行者
延伸模組版本
設定或安裝指令碼的位置
要在 VM 執行個體上執行的命令

範本會使用 PowerShell DSC 延伸模組來安裝在 IIS 中執行的 ASP.NET MVC 應用程式。

安裝指令碼會從 GitHub 下載，如 url 中所定義。然後，延伸模組會從 IISInstall.ps1 腳本執行 InstallIIS，如函式和腳本中所定義。 ASP.NET 應用程式本身會以 Web 部署套件的形式提供，也會從 GitHub 下載，如 WebDeployPackagePath 中所定義：

部署範本

您可以選取 [部署至 Azure ] 按鈕來部署範本。此按鈕會開啟 Azure 入口網站、載入完整的範本，並提示輸入一些參數，例如擴展集名稱、執行個體計數和系統管理員認證。

您也可以使用 Azure PowerShell 部署 Resource Manager 範本：

# Create a resource group
New-AzResourceGroup -Name myResourceGroup -Location EastUS

# Deploy template into resource group
New-AzResourceGroupDeployment `
    -ResourceGroupName myResourceGroup `
    -TemplateURI https://raw.githubusercontent.com/Azure/azure-quickstart-templates/master/demos/vmss-windows-webapp-dsc-autoscale/azuredeploy.json

# Update the scale set and apply the extension
Update-AzVmss `
    -ResourceGroupName myResourceGroup `
    -VmScaleSetName myVMSS `
    -VirtualMachineScaleSet $vmssConfig

回答提示以提供擴展集名稱和 VM 執行個體的管理員認證。建立規模集並套用延伸模組來設定應用程式可能需要 10-15 分鐘的時間。

驗證部署

若要查看有效的擴展集，請在網頁瀏覽器中存取範例 Web 應用程式。使用 Get-AzPublicIpAddress 取得負載平衡器的公用 IP 位址，如下所示：

Get-AzPublicIpAddress -ResourceGroupName myResourceGroup | Select IpAddress

在網頁瀏覽器 http://publicIpAddress/MyApp中輸入負載平衡器的公用IP位址，格式為。負載平衡器會將流量分配至其中一個 VM 執行個體，如下列範例所示：

運行 IIS 站點

清理資源

若不再需要，您可以使用 Remove-AzResourceGroup 移除資源群組和擴展集。 -Force 參數會確認您想要刪除資源，而不另外對您提示將要進行此作業。 -AsJob 參數在不等待作業完成的情況下，會將控制權返回給提示字元。

Remove-AzResourceGroup -Name "myResourceGroup" -Force -AsJob

後續步驟

在本快速入門中，您已使用 ARM 範本建立 Windows 擴展集，並使用 PowerShell DSC 延伸模組在 VM 執行個體上安裝基本 ASP.NET 應用程式。若要深入瞭解，請繼續學習如何建立和管理 Azure 虛擬機器擴展集的教學課程。

建立和管理 Azure 虛擬機器擴展集

意見反應

此頁面對您有幫助嗎？

Last updated on 2025-10-10