Dockerfile

# Use the latest stable Python image
FROM python:3.14.2-slim

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

# Create app user and group
RUN groupadd --gid 1000 app && \
    useradd --uid 1000 --gid 1000 --create-home --shell /bin/bash app

# Create app directory and set ownership
RUN mkdir -p /app && \
    chown -R app:app /app

# Set working directory
WORKDIR /app

# Copy requirements first for better Docker layer caching
COPY requirements.txt .

# Install Python dependencies
RUN pip install --no-cache-dir --upgrade pip && \
    pip install --no-cache-dir --trusted-host pypi.org --trusted-host pypi.python.org --trusted-host files.pythonhosted.org -r requirements.txt

# Copy application code
COPY main.py .

# Change ownership of all files to app user
RUN chown -R app:app /app

# Switch to app user
USER app

# Set the default command
CMD ["python", "main.py"]