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Cloud Config:Imbalanced ECS instance distribution across zones

Last Updated:Oct 20, 2025

A configuration is compliant if the ECS instances in a region are distributed across different zones.

Risk level

Default risk level: Medium.

You can change the risk level as needed.

Detection logic

  • A configuration is compliant if the ECS instances in a region are distributed across different zones.

Rule details

Parameter

Description

Rule name

Imbalanced ECS instance distribution across zones

Rule identifier

ecs-instance-region-availability-zone-imbalance

Tag

imbalance

Automatic remediation

Not supported

Rule trigger

Configuration changes

Supported resource types

ACS::ECS::Instance

Input parameters

None