It looks like GCP has added some Elixir specific goodness. Between this and Gigalixir, it’s getting stronger.
Also a HN thread where one of the engineers is answering questions.
https://news.ycombinator.com/item?id=16208809
Includes Elixir client for Google APIs https://github.com/GoogleCloudPlatform/elixir-google-api
And runtime for AppEngine https://github.com/GoogleCloudPlatform/elixir-runtime