
AWS CloudFormation enables seamless updates to running infrastructure, such as increasing RDS storage or adding backup databases across availability zones, without causing service disruption or downtime.


<div><p>This article demonstrates how to update AWS CloudFormation stacks without service disruption, using Amazon RDS as an example.</p><ul><li>AWS CloudFormation supports direct updates and change sets for modifying running stacks</li><li>Direct updates can modify resource values with no interruption to service availability</li><li>Change sets preview proposed changes before applying them to production stacks</li><li>Successfully increased RDS storage from 100GB to 200GB without downtime</li><li>Added new RDS backup instance in different Availability Zone using change sets</li><li>Change sets create new resources parallel to existing ones for safe deployment</li><li>Enables rapid business innovation while maintaining high availability and reliability</li></ul><p>CloudFormation allows DevOps teams to implement infrastructure changes and scale resources efficiently without disrupting running applications or causing downtime.</p></div>


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