I’m trying to deploy a Torch/Transformers model on Google App Engine Flexible.  During deploy, I get this error:
Updating service [default] (this may take several minutes)...failed.                                                                      
ERROR: (gcloud.app.deploy) Error Response: [4] Your deployment has failed to become healthy in the allotted time and therefore was rolled back. If you believe this was an error, try adjusting the 'app_start_timeout_sec' setting in the 'readiness_check' section.

I’ve done the recommended change and also cranked up the instance memory to 10GB but I still get the same error.  I’m copying my app.yaml below.
Has anyone successfully deployed a model like this to GAE flex?
I’m able to deploy to AWS but need it on GAE flex…
=====
runtime: python
env: flex

entrypoint: gunicorn -b :$PORT main:app

runtime_config:
  python_version: 3

manual_scaling:
  instances: 2

resources:
  cpu: 1
  memory_gb: 10
  disk_size_gb: 10

network:
  name: default

readiness_check:
  app_start_timeout_sec: 1800