cookiecutter-terraform-module/hooks/pre_gen_project.py

from cookiecutter.main import cookiecutter
import json
import datetime
import os.path

today = datetime.datetime.today()
date = today.date().isoformat()
year = today.year

extra_context = {
        'release_date': date,
        'year': year
        }

cookiecutter('cookiecutter-terraform-module', extra_context=extra_context)