97 lines
3.1 KiB
Python
97 lines
3.1 KiB
Python
# SPDX-FileCopyrightText: Copyright (c) 2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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# SPDX-License-Identifier: Apache-2.0
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import asyncio
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import time
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import uuid
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import uvloop
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from dynamo.llm import HttpAsyncEngine, HttpService
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from dynamo.runtime import DistributedRuntime, dynamo_worker
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class MockEngine:
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def __init__(self, model_name):
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self.model_name = model_name
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def generate(self, request):
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id = f"chat-{uuid.uuid4()}"
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created = int(time.time())
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model = self.model_name
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print(f"{created} | Received request: {request}")
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async def generator():
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num_chunks = 5
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for i in range(num_chunks):
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mock_content = f"chunk{i}"
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finish_reason = "stop" if (i == num_chunks - 1) else None
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chunk = {
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"id": id,
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"object": "chat.completion.chunk",
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"created": created,
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"model": model,
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"choices": [
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{
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"index": i,
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"delta": {"role": None, "content": mock_content},
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"logprobs": None,
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"finish_reason": finish_reason,
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}
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],
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}
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yield chunk
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return generator()
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@dynamo_worker()
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async def worker(runtime: DistributedRuntime):
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model: str = "mock_model"
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served_model_name: str = "mock_model"
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loop = asyncio.get_running_loop()
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python_engine = MockEngine(model)
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engine = HttpAsyncEngine(python_engine.generate, loop)
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host: str = "localhost"
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port: int = 8000
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service: HttpService = HttpService(port=port)
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service.add_chat_completions_model(served_model_name, "mdcsum", engine)
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print("Starting service...")
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shutdown_signal = service.run(runtime.child_token())
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try:
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print(f"Serving endpoint: {host}:{port}/v1/models")
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print(f"Serving endpoint: {host}:{port}/v1/chat/completions")
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print(f"Serving the following models: {service.list_chat_completions_models()}")
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# Block until shutdown signal received
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await shutdown_signal
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except KeyboardInterrupt:
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# TODO: Handle KeyboardInterrupt gracefully in triton_worker
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# TODO: Caught by DistributedRuntime or HttpService, so it's not caught here
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pass
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except Exception as e:
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print(f"Unexpected error occurred: {e}")
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finally:
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print("Shutting down worker...")
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runtime.shutdown()
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if __name__ == "__main__":
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uvloop.install()
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asyncio.run(worker())
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