Azure Load Balancer
Introduction
Azure Load Balancer is a high-performance, scalable service that distributes incoming traffic across multiple virtual machines (VMs) or backend resources to ensure high availability, reliability, and fault tolerance.
Getting Started
Compatibility
The Azure Load Balancer O11ySource supports Azure Load Balancer Services within standard lifecycle support.
Data Collection Method
vuSmartMaps collects Azure Load Balancer metrics through a data collector deployed within the vuSmartMaps platform, which uses azure_monitor to retrieve performance and health metrics.
Prerequisites
Dependent Configuration
To configure this O11ySource, create a 'credential' of type 'azure' under the 'Definition' tab.
Inputs for Configuring Data Source
- Resource Name: Enter the Resource Name of Load Balancer
- Resource ID: A unique identifier for the Azure resource.
- Credential: Client ID, Client Secret, Subscription ID and Tenant ID associated to the credential.
- Period (in seconds): Time interval for polling data from the Azure Load Balancer. Period should be between 60 seconds – 3000 seconds.
Applications
Firewall Requirement
To collect data from this O11ySource, ensure the following ports are opened:
| Source IP | Destination IP | Destination Port | Protocol | Direction |
|---|---|---|---|---|
| vuSmartMaps Collection/Ingress node IP | Service URL | 443* | TCP | Outbound |
*Before providing the firewall requirements, please update the port based on the customer environment.
Configuring the Target
Health and performance metrics of Azure Load Balancer Services are collected through Azure Monitor service. Thus, Azure Monitor must be enabled in your Azure account. Azure Load Balancer Services should have available instances for which monitoring is enabled.
An IAM role or user with the following permissions to access Azure Load Balancer metrics through Azure Monitor:
- Grant the Azure AD application, for which you've obtained the Client ID and Client Secret, the "Reader" role or a custom role specifically assigned with the Microsoft.Insights/metrics/read permission.
Configuration Steps
Metrics Collected
| Name | Description | Data Type |
|---|---|---|
| @timestamp | Original timestamp of the agent in string format | String |
| timestamp | Precise timestamp of the agent with milliseconds | DateTime64(3) |
| resource_group | Resource group in Azure | String |
| subscription_id | Azure subscription identifier | String |
| resource_name | Name of the Azure resource (Azure Management API) | String |
| name | Metric name of the Azure resource(e.g., capacity, requests etc.) | String |
| minimum | Minimum value of the metric over the period | Float64 |
| maximum | Maximum value of the metric over the period | Float64 |
| total | Total value of the metric over the period | Float64 |
| average | Average value of the metric over the period | Float64 |
| namespace | logical container that organizes and manages related resources | String |
| count | Indicate the number of occurrences or events of a specific type within a given time frame. | UInt64 |
