Metrics not being emitted

Summary

This article helps you resolve when Datadog isn't receiving metrics from Azure resources because the Datadog resource identity doesn't have the required Monitoring Reader role assignment.

Prerequisites

• Access to the Azure portal with permissions to view access control (IAM) for the target subscription (Reader) and to assign roles (Contributor/Owner) if you will remediate the problem.
• The Datadog resource identity (managed identity or service principal) name or principal ID.

Symptoms

• Metrics from Azure resources don't appear in the Datadog UI.
• The Datadog resource doesn't show a Monitoring Reader role assignment in the subscription's IAM list.

Cause

Datadog requires the Monitoring Reader role on the appropriate Azure subscription to collect platform metrics. If the Datadog resource identity isn't assigned this role, Datadog can't read metrics and they won't be emitted to Datadog.

Solution

1. In the Azure portal, open the subscription that contains the resource.

2. Select Access control (IAM).

3. On the Role assignments tab, search for the Datadog resource name.

4. If you don't find a Monitoring Reader assignment for the Datadog identity, complete these steps to add one:

   1. Select Add > Add role assignment.

   2. On the Role tab, select Monitoring Reader, and then select Next.

   3. In Assign access to, select Managed identity or Service principal as appropriate.

   4. Select the Datadog resource identity and then choose Select.

5. Wait a few minutes for role-based access control (RBAC) propagation, and then verify that Datadog is receiving metrics.

Resources

• Azure role-based access control (RBAC)
• Assign Azure roles using the Azure CLI
• Datadog Azure integration documentation