# Use an official lightweight Python image
FROM python:3.12-slim

# Prevent Python from writing .pyc files and enable real-time logging
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1

# Set the working directory inside the container
WORKDIR /code

# Copy only the dependency definitions to maximize Docker cache utilization
COPY ./requirements.txt /code/requirements.txt

# Install the application dependencies
RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt

# Copy the rest of the application code
COPY ./app /code/app

# Run the FastAPI application using the official CLI
CMD ["fastapi", "run", "app/main.py", "--port", "80"]