97 lines
2.7 KiB
Python
97 lines
2.7 KiB
Python
"""Example FastAPI server for llama.cpp.
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To run this example:
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```bash
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pip install fastapi uvicorn sse-starlette pydantic-settings
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export MODEL=../models/7B/...
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```
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Then run:
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```
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uvicorn llama_cpp.server.app:create_app --reload
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```
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or
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```
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python3 -m llama_cpp.server
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```
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Then visit http://localhost:8000/docs to see the interactive API docs.
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"""
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from __future__ import annotations
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import os
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import sys
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import argparse
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import uvicorn
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from llama_cpp.server.app import create_app
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from llama_cpp.server.settings import (
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Settings,
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ServerSettings,
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ModelSettings,
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ConfigFileSettings,
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)
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from llama_cpp.server.cli import add_args_from_model, parse_model_from_args
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def main():
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description = "🦙 Llama.cpp python server. Host your own LLMs!🚀"
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parser = argparse.ArgumentParser(description=description)
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add_args_from_model(parser, Settings)
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parser.add_argument(
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"--config_file",
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type=str,
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help="Path to a config file to load.",
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)
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server_settings: ServerSettings | None = None
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model_settings: list[ModelSettings] = []
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args = parser.parse_args()
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try:
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# Load server settings from config_file if provided
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config_file = os.environ.get("CONFIG_FILE", args.config_file)
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if config_file:
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if not os.path.exists(config_file):
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raise ValueError(f"Config file {config_file} not found!")
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with open(config_file, "rb") as f:
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# Check if yaml file
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if config_file.endswith(".yaml") or config_file.endswith(".yml"):
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import yaml
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import json
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config_file_settings = ConfigFileSettings.model_validate_json(
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json.dumps(yaml.safe_load(f))
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)
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else:
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config_file_settings = ConfigFileSettings.model_validate_json(f.read())
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server_settings = ServerSettings.model_validate(config_file_settings)
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model_settings = config_file_settings.models
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else:
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server_settings = parse_model_from_args(ServerSettings, args)
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model_settings = [parse_model_from_args(ModelSettings, args)]
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except Exception as e:
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print(e, file=sys.stderr)
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parser.print_help()
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sys.exit(1)
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assert server_settings is not None
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assert model_settings is not None
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app = create_app(
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server_settings=server_settings,
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model_settings=model_settings,
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)
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uvicorn.run(
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app,
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host=os.getenv("HOST", server_settings.host),
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port=int(os.getenv("PORT", server_settings.port)),
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ssl_keyfile=server_settings.ssl_keyfile,
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ssl_certfile=server_settings.ssl_certfile,
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)
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if __name__ == "__main__":
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main()
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