ExtractOCIImage will extract a given targetImage into a given targetDestination.

GetImage if returns the proper image to pull with transport and auth tries local daemon first and then fallbacks into remote if auth is nil, it will try to use the default keychain https://github.com/google/go-containerregistry/tree/main/pkg/authn#tldr-for-consumers-of-this-package.

Define the struct for the "config" section.

Define the struct for each item in the "layers" array.

Define the main struct for the JSON data.