Amazon CloudWatch Synthetics now automatically deletes Lambda resources associated with canaries

Amazon CloudWatch Synthetics, an outside-in monitoring capability which continually verifies your customers’ experience by running snippets of code on AWS Lambda called canaries, will now automatically delete your associated Lambda resources when you try to delete Synthetics canaries minimizing the manual upkeep required to manage AWS resources in your account.

CloudWatch Synthetics creates Lambdas to execute canaries to monitor the health and performance of your web applications or API endpoints. When you delete a canary the Lambda function and its layers are no longer usable. With the release of this feature these Lambdas will be automatically removed when a canary is deleted, reducing the need for additional housekeeping in maintaining your Synthetics canaries. Canaries deleted via AWS console will automatically cleanup related lambda resources. Any new canaries created via CLI/SDK or CFN will automatically opt-in to this feature whereas canaries created before this launch need to be explicitly opted in.

This feature is available in all commercial regions, the AWS GovCloud (US) Regions, and China regions at no additional cost to the customers.

To learn more about the delete behavior of canaries, see the documentation, or refer to the user guide and One Observability Workshop to get started with CloudWatch Synthetics.