2-2同步
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# ==================== 安装依赖阶段(构建镜像)====================
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# 基础镜像:3.12-slim轻量化,小镜像
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FROM python:3.12-slim as builder
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FROM python:3.12-slim AS builder
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# 构建阶段:隔离构建依赖,最终镜像仅保留运行时,镜像瘦身
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WORKDIR /app
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# 默认测试环境,可通过env修改 development/production
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ENV PYTHONUNBUFFERED=1 \
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PYTHONDONTWRITEBYTECODE=1 \
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UV_SYSTEM_PYTHON=1 \
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UV_HTTP_TIMEOUT=600 \
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UV_INDEX_URL=https://pypi.tuna.tsinghua.edu.cn/simple \
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UV_EXTRA_INDEX_URL=https://pypi.tuna.tsinghua.edu.cn/simple \
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UV_EXTRA_INDEX_URL=https://pypi.tuna.tsinghua.edu.cn/simple
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# 安装构建依赖
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RUN apt-get update && apt-get install -y --no-install-recommends \
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gcc \
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g++ \
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build-essential \
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python3-dev \
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ca-certificates \
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curl \
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&& rm -rf /var/lib/apt/lists/* \
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&& apt-get clean
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# 复制uv和依赖文件
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COPY --from=ghcr.io/astral-sh/uv:latest /uv /usr/local/bin/uv
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COPY pyproject.toml uv.lock ./
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# 安装依赖:--frozen锁定版本,--no-dev默认安装生产依赖
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# 依赖安装到venv,保证隔离性,同时支持uv run调用
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RUN uv sync --frozen --no-dev
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# ==================== 运行时阶段(最终镜像)====================
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FROM python:3.12-slim AS runtime
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# 默认测试环境,可通过 env 修改
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ENV PYTHONUNBUFFERED=1 \
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PYTHONDONTWRITEBYTECODE=1 \
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# 可外部覆盖的核心启动参数
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APP_ENV=test \
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ENV=test \
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APP_PORT=8031 \
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APP_HOST=0.0.0.0 \
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# 是否开启热重载:默认关闭(生产/测试环境不需要),开发环境可设为1
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@@ -20,32 +47,6 @@ ENV PYTHONUNBUFFERED=1 \
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# 日志配置文件:默认使用json配置,可设为空关闭
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APP_LOG_CONFIG=logging_config.json
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# 安装构建依赖(仅builder阶段需要,运行时镜像会剔除)
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RUN apt-get update && apt-get install -y --no-install-recommends \
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gcc \
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g++ \
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build-essential \
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python3-dev \
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&& rm -rf /var/lib/apt/lists/* \
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# 清理apt缓存,进一步减小构建层体积
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&& apt-get clean
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# 复制uv和依赖文件(**核心缓存层**:仅pyproject.toml/uv.lock变更时才重新安装依赖)
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COPY --from=ghcr.io/astral-sh/uv:latest /uv /usr/local/bin/uv
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COPY pyproject.toml uv.lock ./
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# 安装依赖:--frozen锁定版本,--no-dev默认安装生产依赖(开发环境可通过uv sync --dev覆盖)
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# 依赖安装到venv,保证隔离性,同时支持uv run调用
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RUN uv sync --frozen --no-dev
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# ==================== 运行时阶段(最终镜像)====================
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FROM python:3.12-slim as runtime
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# 继承构建阶段的环境变量(可被外部传参覆盖)
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ENV PYTHONUNBUFFERED=1 \
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PYTHONDONTWRITEBYTECODE=1 \
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UV_SYSTEM_PYTHON=1
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# 设置工作目录,与构建阶段一致
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WORKDIR /app
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@@ -62,9 +63,5 @@ EXPOSE ${APP_PORT}
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# 启动脚本:用shell脚本解析环境变量,动态生成启动命令
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CMD ["/bin/sh", "-c", \
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"if [ $APP_RELOAD -eq 1 ]; then \
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uv run uvicorn app.main:app --host $APP_HOST --port $APP_PORT --reload ${APP_LOG_CONFIG:+-log-config $APP_LOG_CONFIG}; \
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else \
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uv run uvicorn app.main:app --host $APP_HOST --port $APP_PORT ${APP_LOG_CONFIG:+-log-config $APP_LOG_CONFIG}; \
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fi" \
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]
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"exec uv run uvicorn app.main:app --host ${APP_HOST} --port ${APP_PORT} --log-config logging_config.json" \
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]
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