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Deploy the Azure Monitor Application Insights Agent on Azure virtual machines and Azure virtual machine scale sets

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Enabling monitoring for your .NET or Java based web applications running on Azure virtual machines and Azure virtual machine scale sets is now easier than ever. Get all the benefits of using Application Insights without modifying your code.

This article walks you through enabling Application Insights monitoring using the Application Insights Agent and provides preliminary guidance for automating the process for large-scale deployments.

Important

Java based applications running on Azure VMs and VMSS are monitored with Application Insights Java 3.0 agent, which is generally available.

Important

Azure Application Insights Agent for ASP.NET and ASP.NET Core applications running on Azure VMs and VMSS is currently in public preview. For monitoring your ASP.NET applications running on-premises, use the Azure Application Insights Agent for on-premises servers, which is generally available and fully supported. The preview version for Azure VMs and VMSS is provided without a service-level agreement, and we don't recommend it for production workloads. Some features might not be supported, and some might have constrained capabilities. For more information, see Supplemental Terms of Use for Microsoft Azure Previews.

Enable Application Insights

Auto-instrumentation is easy to enable with no advanced configuration required.

Note

Auto-instrumentation is available for ASP.NET, ASP.NET Core IIS-hosted applications and Java. Use an SDK to instrument Node.js and Python applications hosted on an Azure virtual machines and virtual machine scale sets.

The Application Insights Agent auto-collects the same dependency signals out-of-the-box as the .NET SDK. See Dependency auto-collection to learn more.

Manage Application Insights Agent for .NET applications on Azure virtual machines using PowerShell

Note

Before installing the Application Insights Agent, you'll need a connection string. Create a new Application Insights Resource or copy the connection string from an existing application insights resource.

Note

New to PowerShell? Check out the Get Started Guide.

Install or update the Application Insights Agent as an extension for Azure virtual machines

$publicCfgJsonString = '
{
  "redfieldConfiguration": {
    "instrumentationKeyMap": {
      "filters": [
        {
          "appFilter": ".*",
          "machineFilter": ".*",
          "virtualPathFilter": ".*",
          "instrumentationSettings" : {
            "connectionString": "InstrumentationKey=00000000-0000-0000-0000-000000000000;IngestionEndpoint=https://xxxx.applicationinsights.azure.com/" # Application Insights connection string, create new Application Insights resource if you don't have one. https://portal.azure.com/#blade/HubsExtension/BrowseResourceBlade/resourceType/microsoft.insights%2Fcomponents
          }
        }
      ]
    }
  }
}
';
$privateCfgJsonString = '{}';

Set-AzVMExtension -ResourceGroupName "<myVmResourceGroup>" -VMName "<myVmName>" -Location "<myVmLocation>" -Name "ApplicationMonitoring" -Publisher "Microsoft.Azure.Diagnostics" -Type "ApplicationMonitoringWindows" -Version "2.8" -SettingString $publicCfgJsonString -ProtectedSettingString $privateCfgJsonString

Note

You may install or update the Application Insights Agent as an extension across multiple Virtual Machines at-scale using a PowerShell loop.

Uninstall Application Insights Agent extension from Azure virtual machine

Remove-AzVMExtension -ResourceGroupName "<myVmResourceGroup>" -VMName "<myVmName>" -Name "ApplicationMonitoring"

Query Application Insights Agent extension status for Azure virtual machine

Get-AzVMExtension -ResourceGroupName "<myVmResourceGroup>" -VMName "<myVmName>" -Name ApplicationMonitoring -Status

Get list of installed extensions for Azure virtual machine

Get-AzResource -ResourceId "/subscriptions/<mySubscriptionId>/resourceGroups/<myVmResourceGroup>/providers/Microsoft.Compute/virtualMachines/<myVmName>/extensions"

# Name              : ApplicationMonitoring
# ResourceGroupName : <myVmResourceGroup>
# ResourceType      : Microsoft.Compute/virtualMachines/extensions
# Location          : southcentralus
# ResourceId        : /subscriptions/<mySubscriptionId>/resourceGroups/<myVmResourceGroup>/providers/Microsoft.Compute/virtualMachines/<myVmName>/extensions/ApplicationMonitoring

You may also view installed extensions in the Azure virtual machine section in the Portal.

Note

Verify installation by clicking on Live Metrics Stream within the Application Insights Resource associated with the connection string you used to deploy the Application Insights Agent Extension. If you are sending data from multiple Virtual Machines, select the target Azure virtual machines under Server Name. It may take up to a minute for data to begin flowing.

Manage Application Insights Agent for .NET applications on Azure virtual machine scale sets using PowerShell

Install or update the Application Insights Agent as an extension for Azure virtual machine scale set

$publicCfgHashtable =
@{
  "redfieldConfiguration"= @{
    "instrumentationKeyMap"= @{
      "filters"= @(
        @{
          "appFilter"= ".*";
          "machineFilter"= ".*";
          "virtualPathFilter"= ".*";
          "instrumentationSettings" = @{
            "connectionString"= "InstrumentationKey=00000000-0000-0000-0000-000000000000;IngestionEndpoint=https://xxxx.applicationinsights.azure.com/" # Application Insights connection string, create new Application Insights resource if you don't have one. https://ms.portal.azure.com/#blade/HubsExtension/BrowseResourceBlade/resourceType/microsoft.insights%2Fcomponents
          }
        }
      )
    }
  }
};
$privateCfgHashtable = @{};

$vmss = Get-AzVmss -ResourceGroupName "<myResourceGroup>" -VMScaleSetName "<myVmssName>"

Add-AzVmssExtension -VirtualMachineScaleSet $vmss -Name "ApplicationMonitoringWindows" -Publisher "Microsoft.Azure.Diagnostics" -Type "ApplicationMonitoringWindows" -TypeHandlerVersion "2.8" -Setting $publicCfgHashtable -ProtectedSetting $privateCfgHashtable

Update-AzVmss -ResourceGroupName $vmss.ResourceGroupName -Name $vmss.Name -VirtualMachineScaleSet $vmss

# Note: depending on your update policy, you might need to run Update-AzVmssInstance for each instance

Uninstall application monitoring extension from Azure virtual machine scale sets

$vmss = Get-AzVmss -ResourceGroupName "<myResourceGroup>" -VMScaleSetName "<myVmssName>"

Remove-AzVmssExtension -VirtualMachineScaleSet $vmss -Name "ApplicationMonitoring"

Update-AzVmss -ResourceGroupName $vmss.ResourceGroupName -Name $vmss.Name -VirtualMachineScaleSet $vmss

# Note: depending on your update policy, you might need to run Update-AzVmssInstance for each instance

Query application monitoring extension status for Azure virtual machine scale sets

# Not supported by extensions framework

Get list of installed extensions for Azure virtual machine scale sets

Get-AzResource -ResourceId /subscriptions/<mySubscriptionId>/resourceGroups/<myResourceGroup>/providers/Microsoft.Compute/virtualMachineScaleSets/<myVmssName>/extensions

# Name              : ApplicationMonitoringWindows
# ResourceGroupName : <myResourceGroup>
# ResourceType      : Microsoft.Compute/virtualMachineScaleSets/extensions
# Location          :
# ResourceId        : /subscriptions/<mySubscriptionId>/resourceGroups/<myResourceGroup>/providers/Microsoft.Compute/virtualMachineScaleSets/<myVmssName>/extensions/ApplicationMonitoringWindows

Troubleshooting

Find troubleshooting tips for Application Insights Monitoring Agent Extension for .NET applications running on Azure virtual machines and virtual machine scale sets.

Note

.NET Core, Node.js, and Python applications are only supported on Azure virtual machines and Azure virtual machine scale sets via manual SDK based instrumentation and therefore the steps below do not apply to these scenarios.

Extension execution output is logged to files found in the following directories:

C:\WindowsAzure\Logs\Plugins\Microsoft.Azure.Diagnostics.ApplicationMonitoringWindows\<version>\

Release notes

2.8.44

  • Updated ApplicationInsights .NET/.NET Core SDK to 2.20.1 - red field.
  • Enabled SQL query collection.
  • Enabled support for Azure Active Directory authentication.

2.8.42

  • Updated ApplicationInsights .NET/.NET Core SDK to 2.18.1 - red field.

2.8.41

  • Added ASP.NET Core Auto-Instrumentation feature.

Next steps