It all depends on how much familiarity you have with the environment into which you are deploying, and how much support you can get from whoever wrote that guide. It seems unlikely that you’ll be able to get much help here on the nuances of such a configuration.
¿Sigue siendo una tarea difícil configurar Discourse mediante App Engine Flex desde la nube? ¿Alguien ha logrado configurar Discourse usando App Engine Flex?