Checks whether an Application Load Balancer (ALB) instance is deployed across multiple zones.
Scenarios
Multi-zone ALB instances provide disaster recovery across zones, preventing service interruptions when the primary zone fails or becomes unavailable.
Risk level
Default risk level: High.
You can change the risk level of this rule.
Detection logic
-
An ALB instance is compliant if it is a multi-zone instance.
-
An ALB instance is non-compliant if it is a single-zone instance. To resolve this issue, see Remediation.
Rule details
|
Parameter |
Description |
|
Rule name |
Use multi-zone ALB instances |
|
Rule identifier |
alb-instance-multi-zone |
|
Tags |
ALB, LoadBalancer |
|
Auto-remediation |
Not supported |
|
Rule trigger mechanism |
Configuration changes |
|
Supported resource types |
ALB instance |
|
Rule input parameters |
None |
Remediation
Configure the ALB instance as a multi-zone instance. For more information, see Upgrade or downgrade an ALB instance.