更改

容器配置文件/python_s2_lessie_sourcing_agents/Dockerfile

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+FROM python:3.12-slim AS builder
+
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1 \
+    UV_LINK_MODE=copy \
+    UV_VERSION=0.4.17 \
+    UV_PROJECT_ENVIRONMENT=/opt/venv
+
+WORKDIR /app
+
+# Install build prerequisites, fetch uv, then remove leftover apt metadata.
+RUN apt-get update && apt-get install -y --no-install-recommends curl ca-certificates build-essential && \
+    rm -rf /var/lib/apt/lists/*
+
+RUN curl -LsSf https://astral.sh/uv/install.sh | sh -s -- --version "${UV_VERSION}"
+
+# Pre-copy manifests for better layer caching.
+COPY pyproject.toml uv.lock requirements.txt ./
+
+RUN /root/.local/bin/uv sync --frozen --no-dev --python /usr/local/bin/python && \
+    /root/.local/bin/uv cache prune --ci
+
+FROM python:3.12-slim AS runtime
+
+ARG APP_PORT=8000
+
+ENV APP_ENV=local \
+    APP_PORT=${APP_PORT}
+
+WORKDIR /app
+
+# Runtime dependencies required by packages like faiss-cpu.
+RUN apt-get update && apt-get install -y --no-install-recommends libgomp1 && \
+    rm -rf /var/lib/apt/lists/*
+
+# Bring in the pre-built virtual environment from the builder stage.
+COPY --from=builder /opt/venv /opt/venv
+
+# Ship only the application sources in the runtime image.
+COPY . .
+
+ENV PATH="/opt/venv/bin:${PATH}" \
+    VIRTUAL_ENV="/opt/venv"
+
+EXPOSE ${APP_PORT}
+
+CMD ["sh", "-c", "python server.py --host ${HOST:-0.0.0.0} --port ${APP_PORT:-8000}"]