Ensure that your AWS Auto Scaling Groups (ASGs) launch configuration is referencing an active Amazon Machine Image (AMI) in order to maintain the auto-scaling process healthy
This rule can help you with the following compliance standards:
This rule resolution is part of the Cloud Conformity Security & Compliance tool for AWS
When your ASGs fail to launch new EC2 instances due to invalid (removed) AMIs, the scaling mechanism is unable to add compute resources to handle the load and this will cause a significant negative impact on your application performance.
To identify any unhealthy Auto Scaling Groups (i.e. ASGs that reference invalid AMIs), perform the following actions:
To fix any unhealthy AWS Auto Scaling Groups by replacing their invalid launch configuration with a valid one, perform the following: