在云服务（外延支持）中应用 Azure 诊断扩展

可以监视任何云服务的关键性能指标。 每个云服务角色收集极少量的数据：CPU 使用率、网络使用率和磁盘利用率。 如果云服务已将 Microsoft.Azure.Diagnostics 扩展应用到某个角色，则该角色可以收集更多数据点。 有关详细信息，请参阅扩展概述

可通过 PowerShell 或 ARM 模板为云服务（外延支持）启用 Azure 诊断扩展

使用 PowerShell 应用 Azure 诊断扩展

# Create WAD extension object
$storageAccountKey = Get-AzStorageAccountKey -ResourceGroupName "ContosOrg" -Name "contosostorageaccount"
$configFilePath = "<Insert WAD public configuration file path>"
$wadExtension = New-AzCloudServiceDiagnosticsExtension -Name "WADExtension" -ResourceGroupName "ContosOrg" -CloudServiceName "ContosoCS" -StorageAccountName "contosostorageaccount" -StorageAccountKey $storageAccountKey[0].Value -DiagnosticsConfigurationPath $configFilePath -TypeHandlerVersion "1.5" -AutoUpgradeMinorVersion $true 

# Add <privateConfig> settings
$wadExtension.ProtectedSetting = "<Insert WAD Private Configuration as raw string here>"

# Get existing Cloud Service
$cloudService = Get-AzCloudService -ResourceGroup "ContosOrg" -CloudServiceName "ContosoCS"

# Add WAD extension to existing Cloud Service extension object
$cloudService.ExtensionProfile.Extension = $cloudService.ExtensionProfile.Extension + $wadExtension

# Update Cloud Service
$cloudService | Update-AzCloudService

通过执行以下 PowerShell 命令下载公共配置文件架构定义：

(Get-AzureServiceAvailableExtension -ExtensionName 'PaaSDiagnostics' -ProviderNamespace 'Microsoft.Azure.Diagnostics').PublicConfigurationSchema | Out-File -Encoding utf8 -FilePath 'PublicWadConfig.xsd'

下面是公共配置 XML 文件的示例

<?xml version="1.0" encoding="utf-8"?>
<PublicConfig xmlns="http://schemas.microsoft.com/ServiceHosting/2010/10/DiagnosticsConfiguration">
  <WadCfg>
    <DiagnosticMonitorConfiguration overallQuotaInMB="25000">
      <PerformanceCounters scheduledTransferPeriod="PT1M">
        <PerformanceCounterConfiguration counterSpecifier="\Processor(_Total)\% Processor Time" sampleRate="PT1M" unit="percent" />
        <PerformanceCounterConfiguration counterSpecifier="\Memory\Committed Bytes" sampleRate="PT1M" unit="bytes"/>
      </PerformanceCounters>
      <EtwProviders>
        <EtwEventSourceProviderConfiguration provider="SampleEventSourceWriter" scheduledTransferPeriod="PT5M">
          <Event id="1" eventDestination="EnumsTable"/>
          <DefaultEvents eventDestination="DefaultTable" />
        </EtwEventSourceProviderConfiguration>
      </EtwProviders>
    </DiagnosticMonitorConfiguration>
  </WadCfg>
</PublicConfig>

通过执行以下 PowerShell 命令来下载专用配置文件架构定义：

(Get-AzureServiceAvailableExtension -ExtensionName 'PaaSDiagnostics' -ProviderNamespace 'Microsoft.Azure.Diagnostics').PrivateConfigurationSchema | Out-File -Encoding utf8 -FilePath 'PrivateWadConfig.xsd'

下面是专用 XML 配置文件的示例

<?xml version="1.0" encoding="utf-8"?>
<PrivateConfig xmlns="http://schemas.microsoft.com/ServiceHosting/2010/10/DiagnosticsConfiguration">
  <StorageAccount name="string" key="string" />
  <AzureMonitorAccount>
    <ServicePrincipalMeta>
      <PrincipalId>string</PrincipalId>
      <Secret>string</Secret>
    </ServicePrincipalMeta>
  </AzureMonitorAccount>
  <SecondaryStorageAccounts>
    <StorageAccount name="string" />
  </SecondaryStorageAccounts>
  <SecondaryEventHubs>
    <EventHub Url="string" SharedAccessKeyName="string" SharedAccessKey="string" />
  </SecondaryEventHubs>
</PrivateConfig>

使用 ARM 模板应用 Azure 诊断扩展

"extensionProfile": { 
          "extensions": [ 
            { 
              "name": "Microsoft.Insights.VMDiagnosticsSettings_WebRole1", 
              "properties": { 
                "autoUpgradeMinorVersion": true, 
                "publisher": "Microsoft.Azure.Diagnostics", 
                "type": "PaaSDiagnostics", 
                "typeHandlerVersion": "1.5", 
                "settings": "Include PublicConfig XML as a raw string", 
                "protectedSettings": "Include PrivateConfig XML as a raw string”", 
                "rolesAppliedTo": [ 
                  "WebRole1" 
                ] 
              } 
            }
          ]
        },

后续步骤

• 查看云服务（外延支持）的部署先决条件。
• 请参阅云服务（外延支持）的常见问题解答。
• 使用 Azure 门户、PowerShell、模板或 Visual Studio 部署云服务（外延支持）。