.net core console application IOptions<T> configuration

So, I’m losing faith in my google skills, there didn’t seem to be a one stop shop that I could find to give information on setting up a .net core console application with a IServiceProvider and utilizing IOptions<T>.

In the process of needing configuration for the first time in a console app — crazy I know. The project is currently using AutoFac as its IOC container — though having to look into .netcore’s built in IOC container, I may want to switch to it!

The basis of wanting to utilize configuration for the app for the first time is utilizing differing endpoints for external resources, depending on the environment. These configuration values would be loaded at the applications entry point (or thereabouts) and would need to be accessed deep within the internals of the app, very likely not even within the same project.

How can I do this without having to set some static member somewhere in which everything has access? That led me to find IOptions<T> (Doc) — T being a configuration class. IOptions<T> allows for the injection of configuration values into a class, this is exactly what’s needed, and avoids the thing I was worried about having to either pass a configuration collection all over the call stack, or using a static member somewhere in the app.