I haven't used it it, but the new (like, really new) Iron Functions may be what you're looking for. I've only used the Workers/Cache so far, but they're dockeri

I haven't used it it, but the new (like, really new) Iron Functions may be what you're looking for. I've only used the Workers/Cache so far, but they're dockerized so pretty much language agnostic. I'm making an assumption that Functions is similar.