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

# Set the working directory in the container
WORKDIR /app

# Copy the requirements file
COPY requirements.txt .

# Install the dependencies with --upgrade-pip flag 
RUN python -m pip install --upgrade pip && pip install --no-cache-dir -r requirements.txt

# Copy the application code into current directory 
COPY . .

# Expose port 8000 for FastAPI app 
EXPOSE 8000

# Run command when container launches with uvicorn 
CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000"]