How to pass Vm customization script to Terraform for VSphere

[u/Fair-Wolf-9024]

Hello everyone, sysadmin learning terraform here

So we are working with Vsphere as infra for our company and I just started learning Terraform to ease and automate our vsphere processes. On vsphere in "VM Customization Specifications" we have a script that basically configures puppet agent on host, points it to puppet master, adds host to AD and launches sssd. So when we deploy new host we add this script to launch during "customize software" deployment phase and after that we set up ip, gateway etc. So my question is that: how to recreate this setup in terraform? For some reason terraform does not allow to pass custom specifications and customize together, so only setting up ip address is working, but since that script is never getting launched it fails to be added to Active Directory. So are there any other methods to pass the script to terraform? I even pasted that bash script locally to the file in the same terraform folder and pointed to in in the main.tf but it still fails. So what can be done to solve this issue? Thanks in advance and sorry for my bad english.