Adventures in AWS Lambda Land – a Migration Gone Well

The author discusses their experience migrating a significant part of their workload from long-running processes to AWS Lambda. They detail the architecture of their backend, which includes a server and a drain for handling asynchronous jobs. They also explain how they changed their codebase for Lambda without requiring huge modifications or multiple binaries. Furthermore, they describe their approach to local development using SQS queues and handling secrets with environment variables. The author dispels misconceptions about container images in Lambda and explains the function lifecycle and limitations of asynchronous Goroutines. They also discuss the Lambda SQS connector's shortcomings and how to reset a Lambda. Lastly, they highlight the benefits of using Lambda for cost-effectiveness, scalability, and operational simplicity.