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Using PowerShell to set up Application Insights for Azure Cloud Services

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Microsoft Azure can be configured to send Azure Diagnostics to Azure Application Insights. The diagnostics relate to Azure Cloud Services and Azure VMs. They complement the telemetry that you send from within the app using the Application Insights SDK. As part of automating the process of creating new resources in Azure, you can configure diagnostics using PowerShell.

Azure template

If the web app is in Azure and you create your resources using an Azure Resource Manager template, you can configure Application Insights by adding this to the resources node:

{
  resources: [
    /* Create Application Insights resource */
    {
      "apiVersion": "2015-05-01",
      "type": "microsoft.insights/components",
      "name": "nameOfAIAppResource",
      "location": "centralus",
      "kind": "web",
      "properties": { "ApplicationId": "nameOfAIAppResource" },
      "dependsOn": [
        "[concat('Microsoft.Web/sites/', myWebAppName)]"
      ]
    }
  ]
}
  • nameOfAIAppResource - a name for the Application Insights resource
  • myWebAppName - the ID of the web app

Enable diagnostics extension as part of deploying a Cloud Service

The New-AzureDeployment cmdlet has a parameter ExtensionConfiguration, which takes an array of diagnostics configurations. These can be created using the New-AzureServiceDiagnosticsExtensionConfig cmdlet. For example:

$service_package = "CloudService.cspkg"
$service_config = "ServiceConfiguration.Cloud.cscfg"
$diagnostics_storagename = "myservicediagnostics"
$webrole_diagconfigpath = "MyService.WebRole.PubConfig.xml" 
$workerrole_diagconfigpath = "MyService.WorkerRole.PubConfig.xml"

$primary_storagekey = (Get-AzStorageKey `
  -StorageAccountName "$diagnostics_storagename").Primary
$storage_context = New-AzStorageContext `
  -StorageAccountName $diagnostics_storagename `
  -StorageAccountKey $primary_storagekey

$webrole_diagconfig = `
  New-AzureServiceDiagnosticsExtensionConfig `
    -Role "WebRole" -Storage_context $storageContext `
    -DiagnosticsConfigurationPath $webrole_diagconfigpath
$workerrole_diagconfig = `
  New-AzureServiceDiagnosticsExtensionConfig `
    -Role "WorkerRole" `
    -StorageContext $storage_context `
    -DiagnosticsConfigurationPath $workerrole_diagconfigpath

  New-AzureDeployment `
    -ServiceName $service_name `
    -Slot Production `
    -Package $service_package `
    -Configuration $service_config `
    -ExtensionConfiguration @($webrole_diagconfig,$workerrole_diagconfig)

Enable diagnostics extension on an existing Cloud Service

On an existing service, use Set-AzureServiceDiagnosticsExtension.

$service_name = "MyService"
$diagnostics_storagename = "myservicediagnostics"
$webrole_diagconfigpath = "MyService.WebRole.PubConfig.xml" 
$workerrole_diagconfigpath = "MyService.WorkerRole.PubConfig.xml"
$primary_storagekey = (Get-AzStorageKey `
  -StorageAccountName "$diagnostics_storagename").Primary
$storage_context = New-AzStorageContext `
  -StorageAccountName $diagnostics_storagename `
  -StorageAccountKey $primary_storagekey

Set-AzureServiceDiagnosticsExtension `
  -StorageContext $storage_context `
  -DiagnosticsConfigurationPath $webrole_diagconfigpath `
  -ServiceName $service_name `
  -Slot Production `
  -Role "WebRole" 
Set-AzureServiceDiagnosticsExtension `
  -StorageContext $storage_context `
  -DiagnosticsConfigurationPath $workerrole_diagconfigpath `
  -ServiceName $service_name `
  -Slot Production `
  -Role "WorkerRole"

Get current diagnostics extension configuration

Get-AzureServiceDiagnosticsExtension -ServiceName "MyService"

Remove diagnostics extension

Remove-AzureServiceDiagnosticsExtension -ServiceName "MyService"

If you enabled the diagnostics extension using either Set-AzureServiceDiagnosticsExtension or New-AzureServiceDiagnosticsExtensionConfig without the Role parameter, then you can remove the extension using Remove-AzureServiceDiagnosticsExtension without the Role parameter. If the Role parameter was used when enabling the extension then it must also be used when removing the extension.

To remove the diagnostics extension from each individual role:

Remove-AzureServiceDiagnosticsExtension -ServiceName "MyService" -Role "WebRole"

See also