# Use an offical python runtime as a parent image
FROM python:3.9-slim

# Set the working directory in the container
WORKDIR /app

# Copy the requirements file into the container
COPY requirements.txt .

# Install dependencies
RUN pip install --no-cache-dir -r requirements.txt

# Copy  the application code into the container
COPY . .

# Expose the port the app runs on
EXPOSE 8000

# Ensure the application runs on Heroku's dynamic port
CMD ["sh", "-c", "uvicorn main:app --host 0.0.0.0 --port $PORT"]