Quick hack to run django manage.py migrate on your production app engine without direct access to database

do_migrations.py

""" do_migrations.py run django manage.py migrate on your production app engine without direct access to database

    License: This code is release to the Public Domain under "CC0 1.0 Universal" License
    Author: Marc Fargas <telenieko@telenieko.com>
    Date: 16th October 2017

    This simple wsgi app allows you to call "manage.py migrate"
    (or any other command if you wish) thus you do not need to
    setup direct access to the database from your local machine.
    
    For setup just place this anywhere, configure the DJANGO_SETTINGS_MODULE
    variable as desired and then add the handler to app.yaml:
    
    handlers:
      - url: /do_migrations/.*
      script: do_migrations.app
      login: admin

    From now on you just need to open that url (as a project admin)
    everytime you need migrations to happen.
"""
import webapp2
import sys
import os


os.environ.setdefault("DJANGO_SETTINGS_MODULE", "metanube.settings")


class MainPage(webapp2.RequestHandler):
    def get(self):
        self.response.headers['Content-Type'] = 'text/plain'
        self.response.write('Running manage.py migrate command')
        sys.stdout = self.response.out
        sys.stderr = self.response.out
        self.response.out.flush = lambda: '' 
        self.do_migrations()

    def do_migrations(self):
        from django.core import management
        import django
        django.setup()
        management.call_command("migrate", noinput=True)

app = webapp2.WSGIApplication([
    ('/do_migrations/', MainPage),
], debug=True)