The coding challenge consisted of writing a CLI tool for a mock up set of microservices. You run their code - which is basically a server that you curl the requested information for - and they have a list of 4 deliverables for what your code must do, e.g. list out the status of services and provide a corresponding healthcheck based on CPU usage, etc. The coding challenge isn't "hard" per se, but time consuming in that you need to write a lot of code to manipulate the data and present it back in a readable format.
