In AWS Cloudformation, is it possible to set a wildcard for LogGroupName for AWS::Logs::LogGroup?

Question

I have many Lambdas and I would like to set the log retention policy in AWS Cloudformation using AWS::Logs::LogGroup for all of them, but the only examples I have seen set LogGroupName for each one. Is it possible to set a retention policy for all Lambdas logs using a wildcard or without having to specify each Lambda function?

I tried this:

LambdaLogGroup:    
  Type: AWS::Logs::LogGroup    
  Properties:    
    LogGroupName: '/aws/lambda/*'    
    RetentionInDays: 14

However, this fails to deploy (stack fails) unsurprisingly with the following error: "Model validation failed (#/LogGroupName: failed validation constraint for keyword [pattern])".

I also tried:

LambdaLogGroup:
  Type: AWS::Logs::LogGroup
  Properties:
    LogGroupName: /aws/lambda/
    RetentionInDays: 14

However, that only sets the policy for the top, not for any individual Lambda.

Answer 1

Sadly its not possible in plain CFN. You would have to do it using custom resource in CloudFormation.