Lassie

The ephemeral nature of AWS Lambda functions makes them difficult to monitor and debug. Current monitoring services either: (A) Rely on logs generated from AWS Cloudwatch, which offers limited and less granular data than ideal at less than real-time speed, or (B) Retroactively fit monitoring code onto existing Lambda functions, adding additional time, overhead, and expense to the deployment process. Lassie’s integration with the AWS CLI allows users to follow the traditional process of deploying Lambda functions while instantly viewing performance metrics & visuals in a locally hosted browser window. The free, open-source nature of the tool allows for unlimited customization.