Introduction
Azure Application Gateway is a web traffic load balancer that enables you to manage traffic to your web applications. Traditional load balancers operate at the transport layer (OSI layer 4 - TCP and UDP) and route traffic based on source IP address and port, to a destination IP address and port.
Application Gateway
With Application Gateway, you can make routing decisions based on more attributes of an HTTP request, such as URI path or host headers. For example, you can route traffic based on the incoming URL.
- If
/imagesis in the incoming URL, you can route traffic to a specific set of servers (known as a pool) configured for images. - If
/videois in the URL, that traffic is routed to another pool that’s optimized for videos.
Application Gateway
This type of routing is known as application layer (OSI layer 7) load balancing. Azure Application Gateway can do URL-based routing and more.
Setup
To set up the OpsRamp Azure integration and discover the Azure service,
go to Azure Integration Discovery Profile and select Application Gateway.
Metrics
| OpsRamp Metric | Metric Display Name | Unit | Aggregation Type | Description |
|---|---|---|---|---|
| azure_throughput | Throughput | BytesPerSecond | Total | Number of bytes per second the application gateway has served. |
| azure_unhealthy_host_count | Unhealthy Host Count | Count | Average | Number of unhealthy backend hosts. |
| azure_healthy_host_count | Healthy Host Count | Count | Average | Number of healthy backend hosts. |
| azure_total_requests | Total Requests | Count | Total | Count of successful requests that the application gateway has served. |
| azure_failed_requests | Failed Requests | Count | Total | Count of failed requests that the application gateway has served. |
| azure_response_status | Response Status | Count | Total | HTTP response status returned by the application gateway. |
| azure_current_connections | Current Connections | Count | Total | Count of current connections established with the application gateway. |
| azure_capacity_units | Current Capacity Units | Count | Average | Capacity units consumed. |
Event support
- Supported
- Configurable in OpsRamp Azure Integration Discovery Profile.