Automate VM deployment (including NIC settings)

Hello,

We have a couple of sample VHD disks we would like to automate for VM's.
So we can create a VM with a sample disk with a script.
Creating and attaching the sample disk is not a problem.

But how can we script the settings like IP addresses and administrator passwords for example.
We now have to manualy log in to this new server and set them.
I'm sure there must be a way to achieve this, can someone point me in the right direction?

We are running Hyper-V in a Windows 2012R2 failover cluster.