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# 多阶段构建 Dockerfile for AI Story Creator
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# 支持多架构构建: linux/amd64, linux/arm64
# 构建参数
ARG USE_CN_MIRROR=false
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# 阶段1: 构建前端
FROM node:22-alpine AS frontend-builder
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ARG USE_CN_MIRROR
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WORKDIR /frontend
# 复制前端依赖文件
COPY frontend/package*.json ./
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# 根据参数决定是否使用国内npm镜像
RUN if [ "$USE_CN_MIRROR" = "true" ]; then \
npm config set registry https://registry.npmmirror.com; \
fi
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# 删除 package-lock.json 以避免因镜像源不一致导致的 404 错误
RUN rm -f package-lock.json
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# 安装依赖
RUN npm install
# 复制前端源代码
COPY frontend/ ./
# 临时修改vite配置,使其输出到dist目录(而不是../backend/static
RUN sed -i "s|outDir: '../backend/static'|outDir: 'dist'|g" vite.config.ts
# 构建前端
RUN npm run build
# 阶段2: 构建最终镜像
FROM python:3.11-slim
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ARG USE_CN_MIRROR
ARG TARGETPLATFORM
ARG TARGETARCH
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# 设置工作目录
WORKDIR /app
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# 根据参数决定是否使用国内镜像源
RUN if [ "$USE_CN_MIRROR" = "true" ]; then \
sed -i 's/deb.debian.org/mirrors.aliyun.com/g' /etc/apt/sources.list.d/debian.sources && \
sed -i 's/security.debian.org/mirrors.aliyun.com/g' /etc/apt/sources.list.d/debian.sources; \
fi
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# 安装系统依赖(添加数据库工具)
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RUN apt-get update && apt-get install -y \
gcc \
postgresql-client \
netcat-traditional \
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&& rm -rf /var/lib/apt/lists/*
# 复制后端依赖文件
COPY backend/requirements.txt ./
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# 安装 Python 依赖(包含 torch,避免单独安装造成重复层)
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RUN if [ "$USE_CN_MIRROR" = "true" ]; then \
pip install --no-cache-dir -r requirements.txt -i https://mirrors.aliyun.com/pypi/simple/; \
else \
pip install --no-cache-dir -r requirements.txt; \
fi
# 创建embedding目录
RUN mkdir -p /app/embedding
# 设置 Sentence-Transformers 缓存目录
ENV SENTENCE_TRANSFORMERS_HOME=/app/embedding
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# 下载 embedding 模型(从 HuggingFace
# 使用 Python 脚本预下载模型,这样运行时不需要网络
RUN python -c "\
from sentence_transformers import SentenceTransformer; \
import os; \
os.environ['SENTENCE_TRANSFORMERS_HOME'] = '/app/embedding'; \
print('Downloading sentence-transformers/paraphrase-multilingual-MiniLM-L12-v2...'); \
model = SentenceTransformer('sentence-transformers/paraphrase-multilingual-MiniLM-L12-v2'); \
print('Model downloaded successfully!'); \
"
# 复制后端代码(不包含embedding,因为已经下载了)
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COPY backend/ ./
# 从前端构建阶段复制构建好的静态文件
COPY --from=frontend-builder /frontend/dist ./static
# 复制 Alembic 迁移配置和脚本(PostgreSQL
COPY backend/alembic-postgres.ini ./alembic.ini
COPY backend/alembic/postgres ./alembic
COPY backend/scripts/entrypoint.sh /app/entrypoint.sh
COPY backend/scripts/migrate.py ./scripts/migrate.py
# 赋予执行权限
RUN chmod +x /app/entrypoint.sh
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# 创建必要的目录
RUN mkdir -p /app/data /app/logs
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# 暴露端口
EXPOSE 8000
# 设置环境变量
ENV PYTHONUNBUFFERED=1
ENV APP_HOST=0.0.0.0
ENV APP_PORT=8000
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# 设置运行时为离线模式(模型已在构建时下载)
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ENV TRANSFORMERS_OFFLINE=1
ENV HF_DATASETS_OFFLINE=1
ENV HF_HUB_OFFLINE=1
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# 健康检查
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:8000/health')" || exit 1
# 使用 entrypoint 脚本启动(自动执行迁移)
ENTRYPOINT ["/app/entrypoint.sh"]