AWS awssupport documentation change
Summary
Added documentation for a new 'Idle NAT gateways' check in cost optimization recommendations
Security assessment
The change adds a new cost optimization check for identifying idle NAT gateways. It focuses solely on cost savings recommendations through resource optimization, with no references to security vulnerabilities, access controls, data protection, or threat mitigation. The documentation explicitly frames this as a cost optimization feature.
Diff
diff --git a/awssupport/latest/user/cost-optimization-checks.md b/awssupport/latest/user/cost-optimization-checks.md index 35693ea56..296480476 100644 --- a//awssupport/latest/user/cost-optimization-checks.md +++ b//awssupport/latest/user/cost-optimization-checks.md @@ -5 +5 @@ -AWS account not part of AWS OrganizationsAmazon Aurora cost optimization recommendations for DB cluster storageAmazon Comprehend underutilized endpointsAmazon DynamoDB reserved capacity purchase recommendationsAmazon EBS cost optimization recommendations for volumesAmazon EBS over-provisioned volumesAmazon EC2 cost optimization recommendations for Amazon EC2 Auto Scaling groupsAmazon EC2 cost optimization recommendations for instancesAmazon EC2 instances consolidation for Microsoft SQL ServerAmazon EC2 instances over-provisioned for Microsoft SQL ServerAmazon EC2 instances stoppedAmazon EC2 Reserved Instance lease expirationAmazon EC2 Reserved Instance optimizationAmazon ECR Repository without lifecycle policy configuredAmazon ElastiCache reserved node purchase recommendationsAWS Fargate cost optimization recommendations for Amazon ECSAmazon MemoryDB reserved node purchase recommendationsAmazon OpenSearch Service Reserved Instance purchase recommendationsAmazon RDS cost optimization recommendations for DB instancesAmazon RDS cost optimization recommendations for DB instance storageAmazon RDS idle DB instancesAmazon RDS Reserved Instance purchase recommendationsAmazon Redshift reserved node purchase recommendationsAmazon Route 53 Latency Resource Record SetsAmazon S3 Bucket Lifecycle Policy ConfiguredAmazon S3 Incomplete Multipart Upload Abort ConfigurationAmazon S3 version-enabled buckets without lifecycle policies configuredAWS Lambda cost optimization recommendations for functionsAWS Lambda functions with excessive timeoutsAWS Lambda functions with high error ratesAWS Lambda over-provisioned functions for memory sizeAWS Savings Plans purchase recommendations for computeAWS Savings Plans purchase recommendations for Amazon SageMaker AIAWS Well-Architected high risk issues for cost optimizationIdle Load BalancersInactive AWS Network FirewallInactive VPC interface endpointsInactive Gateway Load Balancer endpointsInactive NAT GatewaysLow utilization Amazon EC2 instancesUnassociated Elastic IP AddressesUnderutilized Amazon EBS volumesUnderutilized Amazon Redshift Clusters +AWS account not part of AWS OrganizationsAmazon Aurora cost optimization recommendations for DB cluster storageAmazon Comprehend underutilized endpointsAmazon DynamoDB reserved capacity purchase recommendationsAmazon EBS cost optimization recommendations for volumesAmazon EBS over-provisioned volumesAmazon EC2 cost optimization recommendations for Amazon EC2 Auto Scaling groupsAmazon EC2 cost optimization recommendations for instancesAmazon EC2 instances consolidation for Microsoft SQL ServerAmazon EC2 instances over-provisioned for Microsoft SQL ServerAmazon EC2 instances stoppedAmazon EC2 Reserved Instance lease expirationAmazon EC2 Reserved Instance optimizationAmazon ECR Repository without lifecycle policy configuredAmazon ElastiCache reserved node purchase recommendationsAWS Fargate cost optimization recommendations for Amazon ECSAmazon MemoryDB reserved node purchase recommendationsAmazon OpenSearch Service Reserved Instance purchase recommendationsAmazon RDS cost optimization recommendations for DB instancesAmazon RDS cost optimization recommendations for DB instance storageAmazon RDS idle DB instancesAmazon RDS Reserved Instance purchase recommendationsAmazon Redshift reserved node purchase recommendationsAmazon Route 53 Latency Resource Record SetsAmazon S3 Bucket Lifecycle Policy ConfiguredAmazon S3 Incomplete Multipart Upload Abort ConfigurationAmazon S3 version-enabled buckets without lifecycle policies configuredAWS Lambda cost optimization recommendations for functionsAWS Lambda functions with excessive timeoutsAWS Lambda functions with high error ratesAWS Lambda over-provisioned functions for memory sizeAWS Savings Plans purchase recommendations for computeAWS Savings Plans purchase recommendations for Amazon SageMaker AIAWS Well-Architected high risk issues for cost optimizationIdle Load BalancersIdle NAT gatewaysInactive AWS Network FirewallInactive VPC interface endpointsInactive Gateway Load Balancer endpointsInactive NAT GatewaysLow utilization Amazon EC2 instancesUnassociated Elastic IP AddressesUnderutilized Amazon EBS volumesUnderutilized Amazon Redshift Clusters @@ -82,0 +83,2 @@ You can use the following checks for the cost optimization category. + * [Idle NAT gateways](./cost-optimization-checks.html#idle-nat-gateways) + @@ -2497,0 +2500,67 @@ If your load balancer has had a low request count, consider deleting your load b +## Idle NAT gateways + +**Description** + + +Checks your NAT gateway configurations and usage patterns to identify idle or underutilized NAT gateways that might be candidates for cost optimization. + +For each resource, Trusted Advisor shows only the top recommended action from AWS Cost Optimization Hub. + +To use this check, you must opt in to [Cost Optimization Hub](https://docs.aws.amazon.com/cost-management/latest/userguide/coh-getting-started.html) and [AWS Compute Optimizer](https://docs.aws.amazon.com/compute-optimizer/latest/ug/account-opt-in.html). + +**Check ID** + + +`c1z7kmr18n` + +**Source** + + +`AWS Cost Optimization Hub` + +**Alert criteria** + + +Yellow: NAT gateway has a cost savings action identified by Cost Optimization Hub. + +**Recommended action** + + +Consider implementing the recommendation to delete the idle NAT gateway. For more information on implementing this recommendation, see the AWS Cloud Financial Management [Service Cost Optimization Playbook](https://catalog.workshops.aws/awscff/en-US/playbooks). + +**Additional resources** + + + * [Viewing idle resource recommendations](https://docs.aws.amazon.com/compute-optimizer/latest/ug/view-idle-recommendations.html) + + * [Work with NAT gateways](https://docs.aws.amazon.com/vpc/latest/userguide/nat-gateway-working-with.html) + + * [NAT gateways](https://docs.aws.amazon.com/vpc/latest/userguide/vpc-nat-gateway.html) + + + + +**Report columns** + + + * Status + + * Region + + * Resource ID + + * Recommended Action + + * Current Resource Summary + + * Recommended Resource Summary + + * Estimated Monthly Cost + + * Estimated Monthly Savings + + * Last Refresh Timestamp + + + +