Dockerfile.mqtt.prod

# Use Python 3.10 slim as base image
FROM python:3.10-slim AS builder

# Set environment variables
ENV PYTHONDONTWRITEBYTECODE 1
ENV PYTHONUNBUFFERED 1

# Set work directory
WORKDIR /app

# Install build dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    && apt-get clean \
    && rm -rf /var/lib/apt/lists/*

# Install Python dependencies
COPY mqtt/requirements.txt .
RUN pip wheel --no-cache-dir --no-deps --wheel-dir /app/wheels -r requirements.txt

# Final stage
FROM python:3.10-slim

ENV PYTHONDONTWRITEBYTECODE 1
ENV PYTHONUNBUFFERED 1

WORKDIR /app

# Copy wheels from builder
COPY --from=builder /app/wheels /wheels
RUN pip install --no-cache /wheels/*

# Copy project
COPY mqtt .

# Run as non-root user
RUN useradd -m mqtt
RUN chown -R mqtt:mqtt /app
USER mqtt

# Expose port
EXPOSE 8001

# Command to run the application
CMD ["python", "main_app.py"]