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@@ -9,6 +9,6 @@ COPY app /workspace/app
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ENV PYTHONUNBUFFERED=1
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EXPOSE 8000 8001
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EXPOSE 8001
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CMD ["python", "-m", "app.start_api"]
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CMD ["python", "-m", "app.start_openai"]
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@@ -6,7 +6,6 @@
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- 提供可容器化部署的模型推理 API
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- 使用 vLLM + ROCm 在 AMD GPU 上执行推理
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- 提供健康检查、鉴权和参数化配置能力
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- 暴露 `8001` OpenAI 标准协议接口,兼容 OpenClaw 调用
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## 目录结构
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@@ -15,10 +14,7 @@
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.
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├── app
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│ ├── config.py
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│ ├── engine.py
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│ ├── main.py
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│ ├── model_catalog.py
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│ ├── start_api.py
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│ ├── start_openai.py
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│ └── schemas.py
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├── .dockerignore
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@@ -28,37 +24,12 @@
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└── requirements.txt
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```
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## 接口说明
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### 1) 健康检查
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- 方法:`GET /health`
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- 返回:服务状态与当前模型名
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### 2) 文本生成
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- 方法:`POST /v1/generate`
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- Header:可选 `x-api-key`(配置 `API_KEY` 后必填)
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- 请求体:
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```json
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{
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"prompt": "请介绍一下ROCm和vLLM的关系",
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"max_tokens": 256,
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"temperature": 0.7,
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"top_p": 0.95,
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"repetition_penalty": 1.0,
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"stop": ["</s>"]
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}
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```
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## 配置项
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项目只读取一个配置文件:`config.json`。
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- `services.api.host` / `services.api.port`:自定义推理服务监听地址与端口(默认 `0.0.0.0:8000`)
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- `services.openai.host` / `services.openai.port`:OpenAI 协议服务监听地址与端口(默认 `0.0.0.0:8001`)
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- `api_key`:接口访问密钥(同时用于 8000 与 8001)
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- `api_key`:OpenAI 接口访问密钥
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- `tensor_parallel_size`:张量并行数,双卡建议 `2`
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- `dtype`:推理精度,默认 `bfloat16`
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- `model_root`:本地模型根目录,建议 `/opt/model`
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@@ -99,26 +70,12 @@
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docker compose up -d --build
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```
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3. 验证自定义推理服务:
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```bash
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curl http://localhost:<services.api.port>/health
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```
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4. 验证 OpenAI 协议服务:
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3. 验证 OpenAI 协议服务:
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```bash
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curl http://localhost:<services.openai.port>/v1/models
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```
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## 推理请求示例
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```bash
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curl -X POST "http://localhost:<services.api.port>/v1/generate" \
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-H "Content-Type: application/json" \
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-d "{\"prompt\":\"请用三句话介绍大模型推理优化\",\"max_tokens\":128,\"temperature\":0.7}"
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```
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## OpenAI 协议示例(8001)
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```bash
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+25
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@@ -1,6 +1,4 @@
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from threading import Lock
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from vllm import LLM, SamplingParams
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import httpx
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from app.config import Settings
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from app.schemas import GenerateRequest, GenerateResponse
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@@ -9,36 +7,35 @@ from app.schemas import GenerateRequest, GenerateResponse
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class InferenceEngine:
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def __init__(self, settings: Settings) -> None:
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self.settings = settings
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self.lock = Lock()
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self.model = LLM(
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model=settings.model_name,
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tensor_parallel_size=settings.tensor_parallel_size,
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max_model_len=settings.max_model_len,
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gpu_memory_utilization=settings.gpu_memory_utilization,
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max_num_seqs=settings.max_num_seqs,
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dtype=settings.dtype,
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enforce_eager=settings.enforce_eager,
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trust_remote_code=settings.trust_remote_code,
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revision=settings.revision,
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)
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self.client = httpx.Client(timeout=300.0)
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def close(self) -> None:
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return None
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self.client.close()
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def generate(self, req: GenerateRequest) -> GenerateResponse:
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sampling_params = SamplingParams(
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temperature=req.temperature,
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top_p=req.top_p,
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max_tokens=req.max_tokens,
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repetition_penalty=req.repetition_penalty,
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stop=req.stop,
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headers = {"Content-Type": "application/json"}
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if self.settings.api_key:
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headers["Authorization"] = f"Bearer {self.settings.api_key}"
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payload = {
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"model": self.settings.served_model_name or self.settings.model_name,
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"messages": [{"role": "user", "content": req.prompt}],
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"max_tokens": req.max_tokens,
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"temperature": req.temperature,
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"top_p": req.top_p,
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}
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if req.stop:
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payload["stop"] = req.stop
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response = self.client.post(
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f"{self.settings.vllm_openai_internal_url}/chat/completions",
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headers=headers,
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json=payload,
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)
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with self.lock:
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outputs = self.model.generate([req.prompt], sampling_params, use_tqdm=False)
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output = outputs[0]
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completion = output.outputs[0].text
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usage_prompt = len(output.prompt_token_ids)
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usage_completion = len(output.outputs[0].token_ids)
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response.raise_for_status()
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body = response.json()
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completion = body["choices"][0]["message"]["content"]
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usage = body.get("usage", {})
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usage_prompt = int(usage.get("prompt_tokens", 0))
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usage_completion = int(usage.get("completion_tokens", 0))
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return GenerateResponse(
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text=completion,
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prompt=req.prompt,
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+1
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@@ -1,30 +1,5 @@
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services:
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inference:
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build:
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context: .
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dockerfile: Dockerfile
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image: rocm-vllm-inference:latest
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container_name: rocm-vllm-inference
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entrypoint: ["python"]
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command: ["-m", "app.start_api"]
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ports:
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- "8002:8002"
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volumes:
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- /opt/model:/opt/model:ro
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- ./config.json:/workspace/config.json:ro
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devices:
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- /dev/kfd
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- /dev/dri
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group_add:
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- video
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ipc: host
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shm_size: 16g
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cap_add:
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- SYS_PTRACE
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security_opt:
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- seccomp=unconfined
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restart: unless-stopped
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openai_api:
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vllm:
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build:
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context: .
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dockerfile: Dockerfile
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@@ -1,3 +1,4 @@
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fastapi==0.116.1
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uvicorn==0.35.0
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pydantic==2.11.7
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httpx==0.28.1
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