How to set a static IP address during OS deployment

There isn't a specific provisioning action to set the IP address, but you may be able to do it with the Windows unattend file. There is some more info here: Interfaces | Microsoft Docs

Another method would be to create a batch script with the netsh command to set a static ip:

netsh interface ip set address "networkname" static staticip subnetmask dnsip

Replace networkname, staticip, subnetmask and dnsip with the actual values you wish to set.  Then use a template actions to map a drive to the script location followed by a "execute file" action to run the script.

That method would require changing the batch for each server which could be cumbersome.  Alternatively you could just use one 'execute file' action configured as such:

You would only need to change the command line parameters for this one action to specify the correct static IP for each server.  The above commands may need some quotes or syntax adjustment but they should get the ball rolling for you. 

1. Take what JaySmith said and change the command line parameters slightly to use a provisioning template (local) variable %newserverip% where the staticip word is. Then just change the IP address template variable in the template before running.
2. Write a real simple batch file that prompts for input during the WINPE boot portion and save the data entered to a text file on say c:\windows\temp which the template reads later before joining domain. Useful if you provision interactively vs Bare Metal.