init project
Browse files- .gitignore +2 -0
- Dockerfile +27 -0
- app/main.py +162 -0
- app/model_loader.py +13 -0
- requirements.txt +3 -0
.gitignore
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# files
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*.DS_Store
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Dockerfile
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FROM python:3.10-slim
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# Cài công cụ cần thiết để build llama-cpp-python
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RUN apt-get update && apt-get install -y \
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build-essential \
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cmake \
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git \
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wget \
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curl \
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&& rm -rf /var/lib/apt/lists/*
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# Cập nhật pip
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RUN pip install --upgrade pip
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WORKDIR /app
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COPY requirements.txt .
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RUN pip install --no-cache-dir -r requirements.txt
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# Tải model GGUF từ Hugging Face Hub (ví dụ: TheBloke's repo)
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# Thay đổi URL và tên file nếu bạn dùng repo khác
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RUN mkdir -p models && \
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wget -O models/gemma34b.gguf https://huggingface.co/Mungert/gemma-3-4b-it-gguf/resolve/main/google_gemma-3-4b-it-q4_k_l.gguf
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COPY ./app ./app
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CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "7860"]
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app/main.py
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from fastapi import FastAPI, Request
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from pydantic import BaseModel
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import logging
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import time
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import asyncio
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import os
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from app.model_loader import load_model
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app = FastAPI()
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llm = None # Khởi tạo sau
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class PromptRequest(BaseModel):
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prompt: str
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# Setup logging
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logging.basicConfig(level=logging.INFO, format="%(asctime)s [%(levelname)s] %(message)s")
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def format_prompt_as_chat(user_prompt: str) -> str:
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messages = [
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{
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"role": "system",
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"content": "Bạn là trợ lý đáng tin cậy, luôn trả lời ngắn gọn, và chính xác.",
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},
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{"role": "user", "content": user_prompt.strip()},
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]
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formatted = (
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"<|system|>\n" + messages[0]["content"] + "</s>\n"
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"<|user|>\n" + messages[1]["content"] + "</s>\n"
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"<|assistant|>\n"
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)
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return formatted
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def format_prompt_as_user_prompt(user_prompt: str) -> str:
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messages = [
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{"role": "user", "content": user_prompt.strip()},
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]
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formatted = (
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"<|user|>\n" + messages[0]["content"] + "</s>\n"
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)
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return formatted
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def format_prompt_as_pure_prompt(user_prompt: str) -> str:
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messages = [
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{"role": "user", "content": user_prompt.strip()},
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]
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formatted = (
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"" + messages[0]["content"] + "\n"
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)
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return formatted
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@app.on_event("startup")
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async def startup_event():
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global llm
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model_path = "models/gemma34b.gguf"
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# Đợi file mô hình nếu chưa có (tối đa 60 giây)
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timeout = 60
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waited = 0
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while not os.path.exists(model_path) and waited < timeout:
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logging.info(f"Đang chờ mô hình xuất hiện tại {model_path}...")
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await asyncio.sleep(2)
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waited += 2
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if not os.path.exists(model_path):
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raise FileNotFoundError(f"Không tìm thấy mô hình sau {timeout} giây: {model_path}")
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# Load mô hình trong thread riêng để không block event loop
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llm = await asyncio.to_thread(load_model)
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logging.info("✅ Đã tải mô hình thành công.")
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@app.post("/chat")
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async def chat(request: Request, prompt: PromptRequest):
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start_time = time.time()
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logging.info(f"📩 Nhận request từ {request.client.host} lúc {time.strftime('%Y-%m-%d %H:%M:%S')}")
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formatted_prompt = format_prompt_as_chat(prompt.prompt)
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output = await asyncio.to_thread(
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llm,
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formatted_prompt,
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max_tokens=256,
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temperature=0.7,
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top_k=50,
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top_p=0.95,
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stop=["</s>"]
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)
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end_time = time.time()
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duration = end_time - start_time
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logging.info(f"✅ Xử lý xong sau {duration:.2f} giây.")
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return {"response": output["choices"][0]["text"].strip()}
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@app.post("/userchat")
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async def userchat(request: Request, prompt: PromptRequest):
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start_time = time.time()
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logging.info(f"📩 Nhận request từ {request.client.host} lúc {time.strftime('%Y-%m-%d %H:%M:%S')}")
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formatted_prompt = format_prompt_as_user_prompt(prompt.prompt)
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output = await asyncio.to_thread(
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llm,
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formatted_prompt,
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max_tokens=256,
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temperature=0.7,
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top_k=50,
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top_p=0.95,
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stop=["</s>"]
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)
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end_time = time.time()
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duration = end_time - start_time
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logging.info(f"✅ Xử lý xong sau {duration:.2f} giây.")
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return {"response": output["choices"][0]["text"].strip()}
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@app.post("/purechat")
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async def purechat(request: Request, prompt: PromptRequest):
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start_time = time.time()
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logging.info(f"📩 Nhận request từ {request.client.host} lúc {time.strftime('%Y-%m-%d %H:%M:%S')}")
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formatted_prompt = format_prompt_as_pure_prompt(prompt.prompt)
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output = await asyncio.to_thread(
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llm,
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formatted_prompt,
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max_tokens=256,
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temperature=0.7,
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top_k=50,
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top_p=0.95,
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stop=["</s>"]
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)
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end_time = time.time()
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duration = end_time - start_time
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logging.info(f"✅ Xử lý xong sau {duration:.2f} giây.")
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return {"response": output["choices"][0]["text"].strip()}
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@app.get("/")
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async def get():
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start_time = time.time()
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logging.info(f"📩 Nhận get request lúc {time.strftime('%Y-%m-%d %H:%M:%S')}")
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formatted_prompt = format_prompt_as_user_prompt("Bạn tên là gì?")
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output = await asyncio.to_thread(
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llm,
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formatted_prompt,
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max_tokens=256,
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temperature=0.7,
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top_k=50,
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top_p=0.95,
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stop=["</s>"]
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)
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end_time = time.time()
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duration = end_time - start_time
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logging.info(f"✅ Xử lý xong sau {duration:.2f} giây.")
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return {"response": output["choices"][0]["text"].strip()}
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app/model_loader.py
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from llama_cpp import Llama
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llm = None # Sẽ được khởi tạo sau
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def load_model():
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global llm
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if llm is None:
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llm = Llama(
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model_path="models/gemma34b.gguf",
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n_ctx=2048,
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n_threads=4,
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)
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return llm
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requirements.txt
ADDED
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@@ -0,0 +1,3 @@
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fastapi
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| 2 |
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uvicorn
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llama-cpp-python==0.2.24
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