https://cloud.google.com/python/django/appengine
However there are a lot of tricky issues with Django on App Engine so I would also look into Djangae:
https://github.com/potatolondon/djangae
As far as Kubernetes, the OP and I had some independent discovery and started working on similar material at the same time. I also have some Django/Kubernetes content, both CloudSQL (MySQL) and Postgres in Kubernetes:
https://cloud.google.com/python/django/container-engine (CloudSQL)
https://medium.com/google-cloud/deploying-django-postgres-re... (Postgres)
My biggest reason for running the database in Kubernetes is a) CloudSQL doesn't currently support Postgres and b) it's interesting. Seems like OP had similar motivations.
Obvious disclosure: I work for GCP.
I cited your work as additional reading because I really enjoyed watching your talk on this recently! While I'd figured out a bulk of this stuff out, there were a few things I learnt from it too.
Definitely happy to have you contribute to the ecosystem. It seemed like a content gap that I wanted to fill in, but at Google we would of course prefer to have a healthy external ecosystem of people writing content like yourself!