Make comfyui kubernetes-friendly

[chenxinlong]

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Hi, recently I'm working on deploy comfyui on kubernetes.

I need mount a PVC to comfyui pod for storing persistent data like models, but seems comfyui doesn't support specify a custom path for custom_nodes.

Can we support all user-data can be specify a custom path so that I can set it to the PVC mount path, then it won't lost data(like custom nodes, user settings...) event I restart comfyui pod.

[CPPAlien]

You can use extra_model_paths.yaml to specify the path of your model. run the command with this arg --extra-model-paths-config.