Console Scripting

One of our tenants is deploy an NFV (Nokia 7250 IXR Simulator). This runs a non-Linux x86_64 OS, and therefore will not support cloud-init. Rather than have to console in and configure these by hand, their team is asking if there is some way to use the console to script configure these NFVs in an automated way.

Is anyone familiar with this kind of approach for doing a bootstrap configuration of the booted VM? For example, setting a license file, configuring some interfaces, et al?