Django アプリを Gunicorn でデプロイ

from django.contrib import admin
from django.http import HttpResponse
from django.urls import path

def index(request):
    return HttpResponse("Hello, World!")

urlpatterns = [
    path("", index),
    path("admin/", admin.site.urls),
]

import os
from pathlib import Path

BASE_DIR = Path(__file__).resolve().parent.parent

SECRET_KEY = os.environ["DJANGO_SECRET_KEY"]
DEBUG = os.environ.get("DJANGO_DEBUG", "False") == "True"
ALLOWED_HOSTS = os.environ.get("DJANGO_ALLOWED_HOSTS", "localhost,127.0.0.1").split(",")

# HTTPS address of your site, required for forms (CSRF) behind the Square Cloud proxy
CSRF_TRUSTED_ORIGINS = ["https://mysite.squareweb.app"]

MIDDLEWARE = [
    "django.middleware.security.SecurityMiddleware",
    "whitenoise.middleware.WhiteNoiseMiddleware",  # right after SecurityMiddleware
    # ... keep the other middleware generated by Django
]

STATIC_URL = "static/"
STATIC_ROOT = BASE_DIR / "staticfiles"
STORAGES = {
    "default": {"BACKEND": "django.core.files.storage.FileSystemStorage"},
    "staticfiles": {"BACKEND": "whitenoise.storage.CompressedManifestStaticFilesStorage"},
}

django
gunicorn
whitenoise

MAIN=manage.py
MEMORY=512
VERSION=recommended
DISPLAY_NAME=My Django app
SUBDOMAIN=mysite
START=python manage.py collectstatic --noinput && python manage.py migrate --noinput && python -m gunicorn mysite.wsgi --bind 0.0.0.0:80