[AWS] Ability to preserve and reuse CloudWatch logs when stack is deleted and recreated

[exoego]

This is a Feature Proposal

Description

I want to preserve CloudWatch Logs resources when deleting a stack, and then re-use it when recreating a stack with (almost) same configuration.

I believe this is useful because of recently-introduced X-Ray support in API Gateway in serverless.
If I understand correctly, stacks should be removed then recreated to enable new features (X-Ray, Tags, etc) in API Gateway.
However, removing stack erases CloudWatch Logs of Lambdas, so users may not be able to see old logs, which is bad from operation perspective.

This feature may also be helpful for future API Gateway Stage-related features if those requires recreating stacks.

Similar or dependent issues:

• Enabling tracing in a multi-service setup throws ApiGatewayStage already exists #6055

Note

According to AWS, CloudFormation can retain resource when deleting stack. I am not sure it is possible to re-use existing same-name resources (CW Logs in this case) in newly-created stack.