[Snow Team] ocr-python: auto-commit work

apps/backend/subservices/ocr-worker/pyproject.toml

@@ -5,6 +5,8 @@ readme = "README.md"
 requires-python = ">=3.11"
 dependencies = [
     "ddddocr>=1.6.1",
+    "fastapi>=0.115.0",
+    "uvicorn>=0.34.0",
 ]
 
 [project.scripts]

apps/backend/subservices/ocr-worker/src/ocr_worker/server.py

@@ -0,0 +1,34 @@
+from __future__ import annotations
+
+import asyncio
+from contextlib import asynccontextmanager
+
+from fastapi import FastAPI
+
+from .engine import get_ocr_engine
+from .cli import recognize_payload, batch_recognize_payload
+
+
+@asynccontextmanager
+async def lifespan(app: FastAPI):
+    # Eagerly load model on startup
+    get_ocr_engine()
+    yield
+
+
+app = FastAPI(lifespan=lifespan)
+
+
+@app.get("/health")
+async def health():
+    return {"code": 0, "msg": "ok"}
+
+
+@app.post("/ocr/recognize")
+async def recognize(payload: dict):
+    return await asyncio.to_thread(recognize_payload, payload)
+
+
+@app.post("/ocr/batch")
+async def batch_recognize(payload: dict):
+    return await asyncio.to_thread(batch_recognize_payload, payload)

deploy/docker/ocr-worker.Dockerfile

@@ -0,0 +1,33 @@
+FROM python:3.11-slim-bookworm
+
+ARG DEBIAN_MIRROR=mirrors.cloud.tencent.com
+ARG PIP_INDEX_URL=https://mirrors.cloud.tencent.com/pypi/simple
+
+ENV DEBIAN_FRONTEND=noninteractive
+ENV TZ=Asia/Shanghai
+
+# NOTE: Use Debian official HTTP sources (not Tencent mirrors) because:
+#   slim image has no ca-certificates pre-installed, and Tencent mirrors
+#   redirect HTTP → HTTPS which fails without TLS certs (chicken-and-egg).
+#   Debian official HTTP sources work without TLS. Apt packages are GPG-signed.
+RUN --mount=type=cache,target=/var/cache/apt,sharing=locked \
+    --mount=type=cache,target=/var/lib/apt,sharing=locked \
+    apt-get update \
+  && apt-get install -y --no-install-recommends curl ca-certificates \
+  && ln -snf /usr/share/zoneinfo/${TZ} /etc/localtime \
+  && echo ${TZ} > /etc/timezone \
+  && apt-get clean \
+  && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+
+COPY apps/backend/subservices/ocr-worker/ ./ocr-worker/
+RUN --mount=type=cache,target=/root/cache/pip \
+    pip install --no-cache-dir -i ${PIP_INDEX_URL} ./ocr-worker
+
+EXPOSE 8100
+
+HEALTHCHECK --interval=5s --timeout=5s --retries=20 --start-period=15s \
+  CMD curl -fsS http://127.0.0.1:8100/health || exit 1
+
+CMD ["uvicorn", "ocr_worker.server:app", "--host", "0.0.0.0", "--port", "8100"]