CloudFormation and Lambda Environment Variables:
CloudFormation is an excellent tool to manage infrastructure as code, including the log group resource.
Lambda functions can access environment variables at runtime, making them a suitable way to pass configuration information like the log group ARN.
CloudFormation Template Modification:
In your CloudFormation template, define the log group resource.
In the Lambda function resource, add an Environment section:
YAML
Environment:
Variables:
LOG_GROUP_ARN: !Ref LogGroupResourceName
Use code with caution.
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The !Ref intrinsic function retrieves the log group's ARN, which CloudFormation generates during stack creation.
Using the ARN in Your Lambda Function:
Within your Lambda code, access the LOG_GROUP_ARN environment variable.
Configure your logging library (e.g., Python's logging module) to send logs to the specified log group.
[References:, AWS Lambda Environment Variables: https://docs.aws.amazon.com/lambda/latest/dg/configuration-envvars.html, CloudFormation !Ref Intrinsic Function: https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/intrinsic-function-reference-ref.html, , , , , ]