How to modify access permissions to Azure Monitor

By default, when a Grafana instance is created, it comes with a Monitoring Reader role granted on all Azure Monitor data and Log Analytics resources within the subscription.

This means that the new Grafana instance can access and search all monitoring data in the subscription. It can view the Azure Monitor metrics and logs from all resources, and any logs stored in Log Analytics workspaces in the subscription.

In this article, learn how to manually grant permission for Azure Managed Grafana to access an Azure resource using a managed identity.

Prerequisites

• An Azure account with an active subscription. Create an account for free.
• An Azure Managed Grafana instance. If you don't have one yet, create an Azure Managed Grafana instance.
• An Azure resource with monitoring data and write permissions, such as User Access Administrator or Owner

Sign in to Azure

Sign in to the Azure portal at https://portal.azure.com/ with your Azure account.

Edit Azure Monitor permissions

To edit permissions for a specific resource, follow these steps.

Portal

1. Open a resource that contains the monitoring data you want to retrieve. In this example, we're configuring an Application Insights resource.

2. Select Access Control (IAM).

3. Under Grant access to this resource, select Add role assignment.

   

4. The portal lists all the roles you can give to your Azure Managed Grafana resource. Select a role. For instance, Monitoring Reader, and select Next.

5. For Assign access to, select Managed identity.

6. Click on Select members.

   

7. Select the Subscription containing your Managed Grafana instance.

8. For Managed identity, select Azure Managed Grafana.

9. Select one or several Managed Grafana instances.

10. Click Select to confirm

    

11. Select Next, then Review + assign to confirm the assignment of the new permission.

For more information about how to use Managed Grafana with Azure Monitor, go to Monitor your Azure services in Grafana.

Azure CLI

Assign a role assignment using the az role assignment create command.

In the code below, replace the following placeholders:

• <assignee>: If its --assignee parameter then enter the assignee's object ID or user sign-in name or service principal name. If its --assignee-object-id parameter then enter object IDs for users or groups or service principals or managed identities. For managed identities use the principal ID. For service principals, use the object ID and not the app ID. For more information, refer az role assignment create command.
• <roleNameOrId>: Enter the role's name or ID. For Monitoring Reader, enter Monitoring Reader or 43d0d8ad-25c7-4714-9337-8ba259a9fe05.
• <scope>: Enter the full ID of the resource Azure Managed Grafana needs access to.

az role assignment create --assignee "<assignee>" \
--role "<roleNameOrId>" \
--scope "<scope>"

or

az role assignment create --assignee-object-id "<assignee>" --assignee-principal-type "<ForeignGroup / Group / ServicePrincipal / User>" \
--role "<roleNameOrId>" \
--scope "<scope>"

Example: assigning permission for an Azure Managed Grafana instance to access an Application Insights resource using a managed identity.

az role assignment create --assignee-object-id "aaaaaaaa-0000-1111-2222-bbbbbbbbbbbb" --assignee-principal-type "ServicePrincipal" \
--role "Monitoring Reader" \
--scope "/subscriptions/aaaa0a0a-bb1b-cc2c-dd3d-eeeeee4e4e4e/resourcegroups/my-rg/providers/microsoft.insights/components/myappinsights/"

For more information about assigning Azure roles using the Azure CLI, refer to the Role based access control documentation.

Next steps

How to configure data sources for Azure Managed Grafana