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Profile Azure Functions app with Application Insights Profiler
Enable Application Insights Profiler for Azure Functions app.
charles.weininger
conceptual
09/22/2023
ryankahng

Profile live Azure Functions app with Application Insights

In this article, you'll use the Azure portal to:

  • View the current app settings for your Functions app.
  • Add two new app settings to enable Profiler on the Functions app.
  • Navigate to the Profiler for your Functions app to view data.

Note

You can enable the Application Insights Profiler for Azure Functions apps on the App Service plan.

Prerequisites

  • An Azure Functions app. Verify your Functions app is on the App Service plan.

    :::image type="content" source="./media/profiler-azure-functions/choose-plan.png" alt-text="Screenshot of where to select App Service plan from drop-down in Functions app creation.":::

  • Linked to an Application Insights resource. Make note of the instrumentation key.

App settings for enabling Profiler

App Setting Value
APPINSIGHTS_PROFILERFEATURE_VERSION 1.0.0
DiagnosticServices_EXTENSION_VERSION ~3
APPINSIGHTS_INSTRUMENTATIONKEY Unique value from your App Insights resource.

Add app settings to your Azure Functions app

From your Functions app overview page in the Azure portal:

  1. Under Settings, select Configuration.

    :::image type="content" source="./media/profiler-azure-functions/configuration-menu.png" alt-text="Screenshot of selecting Configuration from under the Settings section of the left side menu.":::

  2. In the Application settings tab, verify the APPINSIGHTS_INSTRUMENTATIONKEY setting is included in the settings list.

    :::image type="content" source="./media/profiler-azure-functions/app-insights-key.png" alt-text="Screenshot showing the App Insights Instrumentation Key setting in the list.":::

  3. Select New application setting.

    :::image type="content" source="./media/profiler-azure-functions/new-setting-button.png" alt-text="Screenshot outlining the new application setting button.":::

  4. Copy the App Setting and its Value from the table above and paste into the corresponding fields.

    :::image type="content" source="./media/profiler-azure-functions/app-setting-1.png" alt-text="Screenshot adding the app insights profiler feature version setting.":::

    :::image type="content" source="./media/profiler-azure-functions/app-setting-2.png" alt-text="Screenshot adding the diagnostic services extension version setting.":::

    Leave the Deployment slot setting blank for now.

  5. Click OK.

  6. Click Save in the top menu, then Continue.

    :::image type="content" source="./media/profiler-azure-functions/save-button.png" alt-text="Screenshot outlining the save button in the top menu of the configuration pane.":::

    :::image type="content" source="./media/profiler-azure-functions/continue-button.png" alt-text="Screenshot outlining the continue button in the dialog after saving.":::

The app settings now show up in the table:

:::image type="content" source="./media/profiler-azure-functions/app-settings-table.png" alt-text="Screenshot showing the two new app settings in the table on the configuration pane.":::

Note

You can also enable Profiler using:

Next Steps

Learn how to...

[!div class="nextstepaction"] Generate load and view Profiler traces