[Feature]: Check for presence of files at startup

[cduk]

🚀 The feature, motivation and pitch

Checks for files such as templates etc. should be done right at the start of vLLM loading. Not right at the end after 30 minutes of loading the model.

[rank0]: ValueError: The supplied chat template (./chat_template/llama3.jinja) looks like a file path, but it failed to be opened. Reason: [Errno 2] No such file or directory:

Alternatives

No response

Additional context

No response

[simon-mo]

Good point. PR welcomed here!