As mentioned in Lambda@Edge CloudFront Debugging, it is very common to have services, applications, and worldwide CloudFront Edge Locations (especially Lambda@Edge) creating CloudWatch Log Groups in regions across the world. By default new CloudWatch Log Groups have retention set to Never, which is never what I want. I created a Lambda function that will search through all AWS regions, check the retention period of each CloudWatch Log Group. Any Log Group that has retention of Never will be c...
