Dockerfile

# VPN Server with FastAPI
FROM python:3.11-slim

# Set working directory
WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y \
    build-essential \
    python3-dev \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements and install Python dependencies
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Create non-root user
RUN useradd -m -u 1000 vpnuser && \
    chown -R vpnuser:vpnuser /app

# Copy application files
COPY --chown=vpnuser:vpnuser . .

# Set environment variables
ENV PYTHONPATH=/app
ENV PYTHONUNBUFFERED=1

# Switch to non-root user
USER vpnuser

# Expose port
EXPOSE 7860

# Run the application with uvicorn
CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860", "--workers", "4"]