Instalar 

pip install gunicorn

arquivo principal run.py

# run.py

from main import app

if __name__ == "__main__":

    app.run()

rodar 

gunicorn -w 4 -b 0.0.0.0:8080 run:app

WINDOWS NAO RODA, VC DEVE USAR OUTRO 

pip install waitress

waitress-serve --host=0.0.0.0 --port=8080 run:app