runapp.py
import os
from paste.deploy import loadapp
from waitress import serve
if __name__ == "__main__":
port = int(os.environ.get("PORT", 5000))
scheme = os.environ.get("SCHEME", "https")
app = loadapp('config:production.ini', relative_to='.')
serve(app, host='0.0.0.0', port=port, url_scheme=scheme)