/lambdanix

Primary LanguageGo

Nix powered lambda

Uses several hacks to get Nix working in AWS Lambda.

The story

  • containers
  • chroot
  • fakeroot
  • udocker
  • LD_PRELOAD
  • namespaces
  • nix rewriting
  • nix patching
  • early kill of builder
  • nix configuration
  • nix bundling
  • ptmx,pty horror

Usage

TL;DR

make bundle
make update
make invoke

What is happening?

  1. Produce the Package. This involves a patched Nix (NixOS/nix#2176) and including several additional libraries like certs, fakechroot. Then rewrite all the paths (https://github.com/timjrd/nixrewrite).
  2. Upload to AWS. Must have a .arn containing the arn for a role with permissions for your lambda funcion.
  3. Create a serialized description of the inputs and steps to take, out.nar.
  4. Invoke the Lambda with the NAR, and obtain a build.
  5. Add additional commands to move the build to a cache (like nix copy, it works with s3).
  6. ???
  7. Profit