Support to create the networkpolicy dynamically

[ripplehang]

Proposed change

When spawn the new pod for the jupyter, I also want to configure the networkpolicy for the new spawned pod

Alternative options

Currently the networkpolicy is static and doesn't exists the API to configure the networkpolicy dynamically.

Who would use this feature?

the networkpolicy should be be important secure mechanism, since the python scripts run in jupyter notebook would be free style, i want to limit the impact by only allow the pod to access the specific range of the destnation.

(Optional): Suggest a solution

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[meeseeksmachine]

This issue has been mentioned on Jupyter Community Forum. There might be relevant details there:

https://discourse.jupyter.org/t/jupyterhub-amalthea/12208/2

[dolfinus]

#644 can solve this