All listeners of a Server Load Balancer (SLB) instance must have at least the specified number of backend servers. The default minimum is 1. HTTP listeners with forwarding enabled are also evaluated as Compliant.
Scenarios
Adding multiple backend servers to SLB listeners creates a high-performance, high-availability server group that improves business stability.
Risk level
Default risk level: high.
When you apply this rule, you can change the risk level based on your business requirements.
Compliance evaluation logic
-
If at least the specified number of backend servers are added for all listeners of an SLB instance, the evaluation result is Compliant. The default minimum is 1. HTTP listeners with forwarding enabled are also evaluated as Compliant.
-
If fewer than the specified number of backend servers are added for any listener of an SLB instance, the evaluation result is Non-compliant. The evaluation result is also Non-compliant if no backend server is added, or if the listeners are not HTTP listeners or do not have forwarding enabled.
Rule details
|
Item |
Description |
|
Rule name |
slb-all-listenter-has-server |
|
Rule ID |
|
|
Tag |
SLB and LoadBalancer |
|
Automatic remediation |
Not supported |
|
Trigger type |
Periodic execution |
|
Evaluation frequency |
Every 24 hours |
|
Supported resource type |
SLB instance |
|
Input parameter |
serverCount. Default value: 1 |
Non-compliance remediation
Add at least the specified number of backend servers for all listeners of each SLB instance. For HTTP listeners, enable the forwarding feature. For more information, see Listener overview.