Logged in to say that this has actually been done (not by me) and my team has been finding it very helpful for local “serverless” SDLC: https://github.com/lambci/docker-lambda . It‘s billed as “ A sandboxed local environment that replicates the live AWS Lambda environment almost identically – including installed software and libraries, file structure and permissions, environment variables, context objects and behaviors – even the user and running process are the same.” We test our functions mocked and against local deployments of that lambci container . There also lambda “layers” (container images for building custom runtimes for AWS Lambda) but we have not used that feature at this point. Interesting space with lots of room for improvement in this tool chain though for sure
I’m not 100% sure as I didn’t create the image (though I’m evangelizing as someone who has found it truly helpful for daily dev.) . I believe the creators tarball’d the entire distro/execution environment from a running lambda so the file system layout and libs likely match Amazon Linux if that’s the default lambda execution distro image. If not I assume it matches the default
