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 /images is in the incoming URL, you can route traffic to a specific set of servers (known as a pool) configured for images.
  • If /video is 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 MetricMetric Display NameUnitAggregation Type
azure_throughput

Number of bytes per second the application gateway has served.
ThroughputBytesPerSecondTotal
azure_unhealthy_host_count

Number of unhealthy backend hosts.
Unhealthy Host CountCountAverage
azure_healthy_host_count

Number of healthy backend hosts.
Healthy Host CountCountAverage
azure_total_requests

Count of successful requests that the application gateway has served.
Total RequestsCountTotal
azure_failed_requests

Count of failed requests that the application gateway has served.
Failed RequestsCountTotal
azure_response_status

HTTP response status returned by the application gateway.
Response StatusCountTotal
azure_current_connections

Count of current connections established with the application gateway.
Current ConnectionsCountTotal
azure_capacity_units

Capacity units consumed.
Current Capacity UnitsCountAverage

Event support

  • Supported
  • Configurable in OpsRamp Azure Integration Discovery Profile.

External reference