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# Multi-stage Dockerfile for Neural Network Quantizer
# Builds frontend and serves with FastAPI backend
# ============================================
# Stage 1: Build Frontend
# ============================================
FROM node:20-alpine AS frontend-build
WORKDIR /app/frontend
# Copy package files
COPY frontend/package*.json ./
# Install dependencies
RUN npm ci
# Copy frontend source
COPY frontend/ ./
# Build production bundle
RUN npm run build
# ============================================
# Stage 2: Python Backend + Frontend
# ============================================
FROM python:3.11-slim
# Set environment variables
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1
# Create non-root user first
RUN useradd -m -u 1000 user
WORKDIR /app
# Install system dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
build-essential \
curl \
&& rm -rf /var/lib/apt/lists/*
# Copy backend requirements
COPY backend/requirements.txt ./requirements.txt
# Install Python dependencies
RUN pip install --no-cache-dir -r requirements.txt
# Copy backend code with ownership
COPY --chown=user backend/ ./backend/
# Copy frontend build with ownership
COPY --chown=user --from=frontend-build /app/frontend/dist ./frontend/dist
# Copy HuggingFace Spaces entry point
COPY --chown=user app.py ./
# Switch to non-root user
USER user
ENV HOME=/home/user
ENV PATH=/home/user/.local/bin:$PATH
# Expose port
EXPOSE 7860
# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
CMD curl -f http://localhost:7860/api/health || exit 1
# Start the application
CMD ["python", "-m", "uvicorn", "backend.api.main:app", "--host", "0.0.0.0", "--port", "7860"]
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