Need some advice on making a script which can create server-less functions

Question

I want to create a lightweight utility similar to "Kubeless", which will take the function file and runtime as an input and create these functions which can be triggered using http requests

My approach - A script (maybe python), which can generate the pod with -

1. the function inside
2. some server which will listen for the events and trigger the function

I am assuming I will have to also automate building the custom images for each function, or maybe I can just mount the code or something..

I don't know if this is the right approach or not