gunicorn_conf.py

import os
import subprocess

from flask_sqlalchemy import SQLAlchemy
from flask_migrate import Migrate, upgrade
from flask import Flask

app = Flask(__name__)

if os.path.exists(os.path.join(os.getcwd(), "config.py")):
	app.config.from_pyfile(os.path.join(os.getcwd(), "config.py"))
else:
	app.config.from_pyfile(os.path.join(os.getcwd(), "config.env.py"))

# Create the database session and import models.
db = SQLAlchemy(app)
from selfservice.models import *
migrate = Migrate(app, db)

def on_starting(server):
	if not os.path.exists(os.path.join(os.getcwd(), "data.db")):
		with app.app_context():
			upgrade()