Which solution will meet this requirement?
Use the AWS::Include transform in CloudFormation to provide the log group’s name to the application.
Pass the log group’s name to the application in the user data section of the CloudFormation template
Use the CloudFormation template’s Mappings section to specify the log group’s name for the application.
Pass the log group’s Amazon Resource Name (ARN) as an environment variable to the Lambda function.
Explanations:
The AWS::Include transform is used to include other template files, but it does not facilitate the passing of parameters or variables to an application at runtime. It does not directly help in making the log group’s name available to the application.
The user data section is not applicable for AWS Lambda functions, as it is primarily used with EC2 instances to provide startup scripts or commands. Lambda functions do not utilize user data.
The Mappings section in CloudFormation is used to create conditional values based on keys, but it does not directly provide runtime variables to the application. It is not designed for passing parameters to resources like Lambda functions.
Passing the log group’s Amazon Resource Name (ARN) as an environment variable to the Lambda function is the best solution. This allows the Lambda function to access the log group name at runtime, making it available for logging operations within the function’s execution context.
If I’m correct, the answer is:
Pass the log group’s Amazon Resource Name (ARN) as an environment variable to the Lambda function.