new_contents: """gunicorn WSGI server configuration."""
  
  # Based on https://github.com/rdegges/django-skel/blob/master/gunicorn.py.ini.
  
  import os
  from multiprocessing import cpu_count
  
  
  def max_workers():
      return cpu_count()
  
  bind = '0.0.0.0:' + os.environ.get('PORT', '8000')
  max_requests = 1000
  worker_class = 'gevent'
  workers = max_workers()
  
subject: Add a configuration file for Gunicorn.