在ARM模板中,参数部分的"reference: {}"属性用于指定参数的值将从另一个资源中获取。这通常用于将一个资源的属性作为输入传递给另一个资源。
下面是一个示例,展示了如何在ARM模板中使用"reference: {}"属性:
"parameters": {
"resourceGroupName": {
"type": "string",
"defaultValue": "myResourceGroup",
"metadata": {
"description": "The name of the resource group."
}
},
"virtualNetworkName": {
"type": "string",
"defaultValue": "myVirtualNetwork",
"metadata": {
"description": "The name of the virtual network."
}
},
"subnetName": {
"type": "string",
"defaultValue": "mySubnet",
"metadata": {
"description": "The name of the subnet."
}
},
"virtualMachineName": {
"type": "string",
"defaultValue": "myVirtualMachine",
"metadata": {
"description": "The name of the virtual machine."
}
}
},
"resources": [
{
"type": "Microsoft.Network/virtualNetworks",
"apiVersion": "2020-06-01",
"name": "[parameters('virtualNetworkName')]",
"location": "[resourceGroup().location]",
"properties": {
"addressSpace": {
"addressPrefixes": [
"10.0.0.0/16"
]
}
}
},
{
"type": "Microsoft.Network/virtualNetworks/subnets",
"apiVersion": "2020-06-01",
"name": "[concat(parameters('virtualNetworkName'), '/', parameters('subnetName'))]",
"location": "[resourceGroup().location]",
"dependsOn": [
"[resourceId('Microsoft.Network/virtualNetworks', parameters('virtualNetworkName'))]"
],
"properties": {
"addressPrefix": "10.0.0.0/24"
}
},
{
"type": "Microsoft.Compute/virtualMachines",
"apiVersion": "2020-06-01",
"name": "[parameters('virtualMachineName')]",
"location": "[resourceGroup().location]",
"dependsOn": [
"[resourceId('Microsoft.Network/virtualNetworks/subnets', parameters('virtualNetworkName'), parameters('subnetName'))]"
],
"properties": {
"hardwareProfile": {
"vmSize": "Standard_DS1_v2"
},
"storageProfile": {
"imageReference": {
"publisher": "MicrosoftWindowsServer",
"offer": "WindowsServer",
"sku": "2016-Datacenter",
"version": "latest"
},
"osDisk": {
"createOption": "FromImage"
}
},
"networkProfile": {
"networkInterfaces": [
{
"id": "[resourceId('Microsoft.Network/networkInterfaces', concat(parameters('virtualMachineName'), '-nic'))]"
}
]
},
"osProfile": {
"computerName": "[parameters('virtualMachineName')]",
"adminUsername": "adminUser",
"adminPassword": "adminPassword"
}
}
},
{
"type": "Microsoft.Network/networkInterfaces",
"apiVersion": "2020-06-01",
"name": "[concat(parameters('virtualMachineName'), '-nic')]",
"location": "[resourceGroup().location]",
"dependsOn": [
"[resourceId('Microsoft.Network/virtualNetworks/subnets', parameters('virtualNetworkName'), parameters('subnetName'))]"
],
"properties": {
"ipConfigurations": [
{
"name": "ipconfig1",
"properties": {
"subnet": {
"id": "[resourceId('Microsoft.Network/virtualNetworks/subnets', parameters('virtualNetworkName'), parameters('subnetName'))]"
},
"privateIPAllocationMethod": "Dynamic"
}
}
]
}
}
]
在上面的示例中,"virtualMachineName"参数的值将被用作虚拟机的名称,并在其他资源中引用。例如,在"Microsoft.Compute/virtualMachines"资源中,"networkInterfaces"属性中的"networkInterfaces"数组的元素中使用了"reference"函数来获取网络接口的ID。这个ID使用了"concat"函数来包括了"virtualNetworkName"和"subnetName"参数