虚拟机规模集是一种 Azure 计算资源，可用于部署和管理一组相同的 VM。 规模集中的所有 VM 采用相同的配置，无需对 VM 进行预配就可以进行自动横向扩展。 这样就可以更方便地构建面向大型计算、大型数据、容器化工作负荷的大规模服务。
如果用户需要通过一个带数据盘的自定义镜像来创建规模集，数据盘里可能存放用户定制应用，同时又希望办规模集置于应用程序网关之后，而不是简单的使用负载均衡服务，那么下面这段模板，可以帮助用户实现以上功能。
{
"$schema": "http://schema.management.azure.com/schemas/2015-01-01-preview/deploymentTemplate.json",
"contentVersion": "1.0.0.0",
"parameters": {
"vmSku": {
"defaultValue": "Standard_A0",
"type": "String",
"metadata": {
"description": "Size of VMs in the VM Scale Set."
}
},
"sourceImageID": {
"type": "String",
"metadata": {
"description": "The source Image ID, must be in the same region of the deployment."
}
},
"vmssName": {
"maxLength": 61,
"type": "String",
"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."
}
},
"instanceCount": {
"maxValue": 100,
"type": "Int",
"metadata": {
"description": "Number of VM instances (100 or less)."
}
},
"adminUsername": {
"type": "String",
"metadata": {
"description": "Admin username on all VMs."
}
},
"adminPassword": {
"type": "SecureString",
"metadata": {
"description": "Admin password on all VMs."
}
},
"existingSubnetResourceId": {
"type": "String",
"metadata": {
"description": "Resource ID of the existing subnet to deploy the scale set into. Should be of the form: /subscriptions/YOUR_SUBSCRIPTION_ID/resourceGroups/YOUR_RESOURCE_GROUP/providers/Microsoft.Network/virtualNetworks/YOUR_VNET_NAME/subnets/YOUR_SUBNET_NAME"
}
},
"AppgwSubnetResourceId": {
"type": "String",
"metadata": {
"description": "Resource ID of the existing subnet to deploy the scale set into. Should be of the form: /subscriptions/YOUR_SUBSCRIPTION_ID/resourceGroups/YOUR_RESOURCE_GROUP/providers/Microsoft.Network/virtualNetworks/YOUR_VNET_NAME/subnets/YOUR_SUBNET_NAME"
}
}
},
"variables": {
"storageAccountType": "Standard_LRS",
"namingInfix": "[toLower(substring(concat(parameters('vmssName'), uniqueString(resourceGroup().id)), 0, 9))]",
"wadnameInfix": "[concat(variables('namingInfix'), 'autoscalewad')]",
"longNamingInfix": "[toLower(parameters('vmssName'))]",
"newStorageAccountSuffix": "[concat(variables('namingInfix'), 'sa')]",
"publicIPAddressName": "[concat(variables('namingInfix'), 'pip')]",
"loadBalancerName": "[concat(variables('namingInfix'), 'appgw')]",
"publicIPAddressID": "[resourceId('Microsoft.Network/publicIPAddresses',variables('publicIPAddressName'))]",
"lbID": "[resourceId('Microsoft.Network/applicationGateways',variables('loadBalancerName'))]",
"natPoolName": "[concat(variables('namingInfix'), 'natpool')]",
"bePoolName": "appGatewayBackendPool",
"natStartPort": 50000,
"natEndPort": 50119,
"natBackendPort": 22,
"nicName": "[concat(variables('namingInfix'), 'nic')]",
"ipConfigName": "[concat(variables('namingInfix'), 'ipconfig')]",
"frontEndIPConfigID": "[concat(variables('lbID'),'/frontendIPConfigurations/appGatewayFrontendIP')]",
"diagnosticsStorageAccountName": "[concat(uniqueString(concat(resourceGroup().id, variables('newStorageAccountSuffix'))), variables('newStorageAccountSuffix'))]",
"diagnosticsStorageAccountResourceGroup": "[resourceGroup().name]",
"accountid": "[concat('/subscriptions/',subscription().subscriptionId,'/resourceGroups/',variables('diagnosticsStorageAccountResourceGroup'),'/providers/','Microsoft.Storage/storageAccounts/', variables('diagnosticsStorageAccountName'))]",
"wadlogs": "<WadCfg><DiagnosticMonitorConfiguration>",
"wadperfcounters1": "<PerformanceCounters scheduledTransferPeriod=\"PT1M\"><PerformanceCounterConfiguration counterSpecifier=\"\\Memory\\AvailableMemory\" sampleRate=\"PT15S\" unit=\"Bytes\"><annotation displayName=\"Memory available\" locale=\"en-us\"/></PerformanceCounterConfiguration><PerformanceCounterConfiguration counterSpecifier=\"\\Memory\\PercentAvailableMemory\" sampleRate=\"PT15S\" unit=\"Percent\"><annotation displayName=\"Mem. percent available\" locale=\"en-us\"/></PerformanceCounterConfiguration><PerformanceCounterConfiguration counterSpecifier=\"\\Memory\\UsedMemory\" sampleRate=\"PT15S\" unit=\"Bytes\"><annotation displayName=\"Memory used\" locale=\"en-us\"/></PerformanceCounterConfiguration><PerformanceCounterConfiguration counterSpecifier=\"\\Memory\\PercentUsedMemory\" sampleRate=\"PT15S\" unit=\"Percent\"><annotation displayName=\"Memory percentage\" locale=\"en-us\"/></PerformanceCounterConfiguration><PerformanceCounterConfiguration counterSpecifier=\"\\Memory\\PercentUsedByCache\" sampleRate=\"PT15S\" unit=\"Percent\"><annotation displayName=\"Mem. used by cache\" locale=\"en-us\"/></PerformanceCounterConfiguration><PerformanceCounterConfiguration counterSpecifier=\"\\Processor\\PercentIdleTime\" sampleRate=\"PT15S\" unit=\"Percent\"><annotation displayName=\"CPU idle time\" locale=\"en-us\"/></PerformanceCounterConfiguration><PerformanceCounterConfiguration counterSpecifier=\"\\Processor\\PercentUserTime\" sampleRate=\"PT15S\" unit=\"Percent\"><annotation displayName=\"CPU user time\" locale=\"en-us\"/></PerformanceCounterConfiguration><PerformanceCounterConfiguration counterSpecifier=\"\\Processor\\PercentProcessorTime\" sampleRate=\"PT15S\" unit=\"Percent\"><annotation displayName=\"CPU percentage guest OS\" locale=\"en-us\"/></PerformanceCounterConfiguration><PerformanceCounterConfiguration counterSpecifier=\"\\Processor\\PercentIOWaitTime\" sampleRate=\"PT15S\" unit=\"Percent\"><annotation displayName=\"CPU IO wait time\" locale=\"en-us\"/></PerformanceCounterConfiguration>",
"wadperfcounters2": "<PerformanceCounterConfiguration counterSpecifier=\"\\PhysicalDisk\\BytesPerSecond\" sampleRate=\"PT15S\" unit=\"BytesPerSecond\"><annotation displayName=\"Disk total bytes\" locale=\"en-us\"/></PerformanceCounterConfiguration><PerformanceCounterConfiguration counterSpecifier=\"\\PhysicalDisk\\ReadBytesPerSecond\" sampleRate=\"PT15S\" unit=\"BytesPerSecond\"><annotation displayName=\"Disk read guest OS\" locale=\"en-us\"/></PerformanceCounterConfiguration><PerformanceCounterConfiguration counterSpecifier=\"\\PhysicalDisk\\WriteBytesPerSecond\" sampleRate=\"PT15S\" unit=\"BytesPerSecond\"><annotation displayName=\"Disk write guest OS\" locale=\"en-us\"/></PerformanceCounterConfiguration><PerformanceCounterConfiguration counterSpecifier=\"\\PhysicalDisk\\TransfersPerSecond\" sampleRate=\"PT15S\" unit=\"CountPerSecond\"><annotation displayName=\"Disk transfers\" locale=\"en-us\"/></PerformanceCounterConfiguration><PerformanceCounterConfiguration counterSpecifier=\"\\PhysicalDisk\\ReadsPerSecond\" sampleRate=\"PT15S\" unit=\"CountPerSecond\"><annotation displayName=\"Disk reads\" locale=\"en-us\"/></PerformanceCounterConfiguration><PerformanceCounterConfiguration counterSpecifier=\"\\PhysicalDisk\\WritesPerSecond\" sampleRate=\"PT15S\" unit=\"CountPerSecond\"><annotation displayName=\"Disk writes\" locale=\"en-us\"/></PerformanceCounterConfiguration><PerformanceCounterConfiguration counterSpecifier=\"\\PhysicalDisk\\AverageReadTime\" sampleRate=\"PT15S\" unit=\"Seconds\"><annotation displayName=\"Disk read time\" locale=\"en-us\"/></PerformanceCounterConfiguration><PerformanceCounterConfiguration counterSpecifier=\"\\PhysicalDisk\\AverageWriteTime\" sampleRate=\"PT15S\" unit=\"Seconds\"><annotation displayName=\"Disk write time\" locale=\"en-us\"/></PerformanceCounterConfiguration><PerformanceCounterConfiguration counterSpecifier=\"\\PhysicalDisk\\AverageTransferTime\" sampleRate=\"PT15S\" unit=\"Seconds\"><annotation displayName=\"Disk transfer time\" locale=\"en-us\"/></PerformanceCounterConfiguration><PerformanceCounterConfiguration counterSpecifier=\"\\PhysicalDisk\\AverageDiskQueueLength\" sampleRate=\"PT15S\" unit=\"Count\"><annotation displayName=\"Disk queue length\" locale=\"en-us\"/></PerformanceCounterConfiguration></PerformanceCounters>",
"wadcfgxstart": "[concat(variables('wadlogs'),variables('wadperfcounters1'),variables('wadperfcounters2'),'<Metrics resourceId=\"')]",
"wadmetricsresourceid": "[concat('/subscriptions/',subscription().subscriptionId,'/resourceGroups/',resourceGroup().name ,'/providers/','Microsoft.Compute/virtualMachineScaleSets/',variables('namingInfix'))]",
"wadcfgxend": "[concat('\"><MetricAggregation scheduledTransferPeriod=\"PT1H\"/><MetricAggregation scheduledTransferPeriod=\"PT1M\"/></Metrics></DiagnosticMonitorConfiguration></WadCfg>')]",
"computeApiVersion": "2016-04-30-preview",
"networkApiVersion": "2016-03-30",
"storageApiVersion": "2015-06-15",
"insightsApiVersion": "2015-04-01"
},
"resources": [
{
"type": "Microsoft.Storage/storageAccounts",
"name": "[variables('diagnosticsStorageAccountName')]",
"apiVersion": "2015-06-15",
"location": "[resourceGroup().location]",
"properties": {
"accountType": "[variables('storageAccountType')]"
}
},
{
"type": "Microsoft.Network/publicIPAddresses",
"name": "[variables('publicIPAddressName')]",
"apiVersion": "[variables('networkApiVersion')]",
"location": "[resourceGroup().location]",
"properties": {
"publicIPAllocationMethod": "Dynamic",
"dnsSettings": {
"domainNameLabel": "[variables('longNamingInfix')]"
}
}
},
{
"type": "Microsoft.Network/applicationGateways",
"name": "[variables('loadBalancerName')]",
"apiVersion": "[variables('networkApiVersion')]",
"location": "[resourceGroup().location]",
"properties": {
"sku": {
"name": "WAF_Medium",
"tier": "WAF",
"capacity": "1"
},
"gatewayIPConfigurations": [
{
"name": "appGatewayIpConfig",
"properties": {
"subnet": {
"id": "[parameters('AppgwSubnetResourceId')]"
}
}
}
],
"frontendIPConfigurations": [
{
"name": "appGatewayFrontendIP",
"properties": {
"PublicIPAddress": {
"id": "[variables('publicIPAddressID')]"
}
}
}
],
"frontendPorts": [
{
"name": "appGatewayFrontendPort",
"properties": {
"Port": 80
}
}
],
"backendAddressPools": [
{
"name": "[variables('bePoolName')]"
}
],
"backendHttpSettingsCollection": [
{
"name": "appGatewayBackendHttpSettings",
"properties": {
"Port": 80,
"Protocol": "Http",
"CookieBasedAffinity": "Disabled"
}
}
],
"httpListeners": [
{
"name": "appGatewayHttpListener",
"properties": {
"FrontendIPConfiguration": {
"Id": "[concat(variables('lbID'), '/frontendIPConfigurations/appGatewayFrontendIP')]"
},
"FrontendPort": {
"Id": "[concat(variables('lbID'), '/frontendPorts/appGatewayFrontendPort')]"
},
"Protocol": "Http",
"SslCertificate": null
}
}
],
"requestRoutingRules": [
{
"Name": "rule1",
"properties": {
"RuleType": "Basic",
"httpListener": {
"id": "[concat(variables('lbID'), '/httpListeners/appGatewayHttpListener')]"
},
"backendAddressPool": {
"id": "[concat(variables('lbID'), '/backendAddressPools/appGatewayBackendPool')]"
},
"backendHttpSettings": {
"id": "[concat(variables('lbID'), '/backendHttpSettingsCollection/appGatewayBackendHttpSettings')]"
}
}
}
]
},
"dependsOn": [
"[concat('Microsoft.Network/publicIPAddresses/', variables('publicIPAddressName'))]"
]
},
{
"type": "Microsoft.Compute/virtualMachineScaleSets",
"sku": {
"name": "[parameters('vmSku')]",
"tier": "Standard",
"capacity": "[parameters('instanceCount')]"
},
"name": "[variables('namingInfix')]",
"apiVersion": "[variables('computeApiVersion')]",
"location": "[resourceGroup().location]",
"properties": {
"overprovision": "true",
"upgradePolicy": {
"mode": "Manual"
},
"virtualMachineProfile": {
"storageProfile": {
"osDisk": {
"createOption": "FromImage",
"managedDisk": {
"storageAccountType": "Standard_LRS"
}
},
"imageReference": {
"id": "[parameters('sourceImageID')]"
}
},
"osProfile": {
"computerNamePrefix": "[variables('namingInfix')]",
"adminUsername": "[parameters('adminUsername')]",
"adminPassword": "[parameters('adminPassword')]"
},
"networkProfile": {
"networkInterfaceConfigurations": [
{
"name": "[variables('nicName')]",
"properties": {
"primary": "true",
"ipConfigurations": [
{
"name": "[variables('ipConfigName')]",
"properties": {
"subnet": {
"id": "[parameters('existingSubnetResourceId')]"
},
"applicationGatewayBackendAddressPools": [
{
"id": "[concat('/subscriptions/', subscription().subscriptionId,'/resourceGroups/', resourceGroup().name, '/providers/Microsoft.Network/applicationGateways/', variables('loadBalancerName'), '/backendAddressPools/', variables('bePoolName'))]"
}
]
}
}
]
}
}
]
},
"extensionProfile": {
"extensions": [
{
"name": "LinuxDiagnostic",
"properties": {
"publisher": "Microsoft.OSTCExtensions",
"type": "LinuxDiagnostic",
"typeHandlerVersion": "2.3",
"autoUpgradeMinorVersion": true,
"settings": {
"xmlCfg": "[base64(concat(variables('wadcfgxstart'),variables('wadmetricsresourceid'),variables('wadcfgxend')))]",
"storageAccount": "[variables('diagnosticsStorageAccountName')]"
},
"protectedSettings": {
"storageAccountName": "[variables('diagnosticsStorageAccountName')]",
"storageAccountKey": "[listkeys(variables('accountid'), variables('storageApiVersion')).key1]",
"storageAccountEndPoint": "https://core.chinacloudapi.cn"
}
}
}
]
}
}
},
"dependsOn": [
"[concat('Microsoft.Storage/storageAccounts/', variables('diagnosticsStorageAccountName'))]",
"[concat('Microsoft.Network/applicationGateways/', variables('loadBalancerName'))]"
]
},
{
"type": "Microsoft.Insights/autoscaleSettings",
"name": "[variables('wadnameInfix')]",
"apiVersion": "[variables('insightsApiVersion')]",
"location": "[resourceGroup().location]",
"properties": {
"name": "[variables('wadnameInfix')]",
"targetResourceUri": "[concat('/subscriptions/',subscription().subscriptionId, '/resourceGroups/', resourceGroup().name, '/providers/Microsoft.Compute/virtualMachineScaleSets/', variables('namingInfix'))]",
"enabled": true,
"profiles": [
{
"name": "Profile1",
"capacity": {
"minimum": "1",
"maximum": "100",
"default": "1"
},
"rules": [
{
"metricTrigger": {
"metricName": "\\Processor\\PercentProcessorTime",
"metricNamespace": "",
"metricResourceUri": "[concat('/subscriptions/',subscription().subscriptionId, '/resourceGroups/', resourceGroup().name, '/providers/Microsoft.Compute/virtualMachineScaleSets/', variables('namingInfix'))]",
"timeGrain": "PT1M",
"statistic": "Average",
"timeWindow": "PT5M",
"timeAggregation": "Average",
"operator": "GreaterThan",
"threshold": 50
},
"scaleAction": {
"direction": "Increase",
"type": "ChangeCount",
"value": "1",
"cooldown": "PT1M"
}
},
{
"metricTrigger": {
"metricName": "\\Processor\\PercentProcessorTime",
"metricNamespace": "",
"metricResourceUri": "[concat('/subscriptions/',subscription().subscriptionId, '/resourceGroups/', resourceGroup().name, '/providers/Microsoft.Compute/virtualMachineScaleSets/', variables('namingInfix'))]",
"timeGrain": "PT1M",
"statistic": "Average",
"timeWindow": "PT5M",
"timeAggregation": "Average",
"operator": "LessThan",
"threshold": 30
},
"scaleAction": {
"direction": "Decrease",
"type": "ChangeCount",
"value": "1",
"cooldown": "PT5M"
}
}
]
}
]
},
"dependsOn": [
"[concat('Microsoft.Compute/virtualMachineScaleSets/', variables('namingInfix'))]"
]
}
]
}
请注意，由于目前Portal功能限制，用户是无法修改规模集在应用程序网关中的设置的，
