AWS Config enables implementing custom rules to monitor resources and optimize costs by alerting administrators about non-compliant resources, such as larger-than-required Amazon RDS instances, triggering corrective actions to avoid overspending.

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<p>This article discusses how to leverage custom AWS Config rules to optimize cost savings on AWS. It presents a solution to monitor and control the usage of expensive database instances, and send alerts when non-compliant instances are detected.</p>
<p>Specifically, the article covers:</p>
<ul>
<li>Overview of the solution architecture involving AWS Config, Lambda, and SNS</li>
<li>Step-by-step walkthrough to deploy the solution using CloudFormation</li>
<li>Confirming SNS topic subscription and receiving alerts</li>
<li>Testing the solution by creating a non-compliant RDS instance</li>
<li>Cleaning up the deployed resources</li>
<li>Conclusion highlighting the benefits of custom AWS Config rules</li>
</ul>
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Leveraging custom AWS Config rules to optimize cost saving on AWS

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