[dchesterton]

Yep, exactly. We're currently running the exact same code on both AWS Lambda and IronWorker, all that differs is a simple handler file.

We're looking to add support for Microsoft's new Azure Functions and Google Cloud Functions, and this will be a matter of creating a single file for each to handle the input.

You should always abstract your dependencies, especially if it's a critical part of your infrastructure.

[eistrati]

We have been working on similar effort, to allow businesses and developers avoid lock-ins and be cloud-agnostic:

https://github.com/MitocGroup/deep-framework

From our experience, this is pretty hard, but not impossible!