Summary

This PR documents the Dashboard:Otlp:SuppressUnsecuredTelemetryMessage configuration option that allows users to suppress the unsecured telemetry warning message displayed in the dashboard.

Background

When the Aspire dashboard is configured with Dashboard:Otlp:AuthMode set to Unsecured, a warning message is displayed in both the console and dashboard UI:

"OTLP server is unsecured. Untrusted apps can send telemetry to the dashboard."

While this is the correct default behavior for security awareness, there are scenarios (such as local development or controlled environments) where users may want to suppress this warning.

Changes

Added documentation for the Dashboard:Otlp:SuppressUnsecuredTelemetryMessage configuration option in the OTLP authentication section of the dashboard configuration page:

• Configuration key: Dashboard:Otlp:SuppressUnsecuredTelemetryMessage
• Environment variable: DASHBOARD__OTLP__SUPPRESSUNSECUREDTELEMETRYMESSAGE
• Default value: false
• Description: When set to true, suppresses the unsecured telemetry warning message that appears when OTLP endpoints are configured with Unsecured auth mode

Usage Example

Users can now suppress the warning by setting the environment variable when running the dashboard:

# Bash
export DASHBOARD__OTLP__SUPPRESSUNSECUREDTELEMETRYMESSAGE=true

# PowerShell
$env:DASHBOARD__OTLP__SUPPRESSUNSECUREDTELEMETRYMESSAGE = "true"

Or in a JSON configuration file:

{
  "Dashboard": {
    "Otlp": {
      "SuppressUnsecuredTelemetryMessage": true
    }
  }
}

Fixes the documentation gap for this configuration option.

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