# Use the official Python base image
FROM python:3.9-slim

# Set the working directory inside the container
WORKDIR /app

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

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

# Copy all your application files (like app.py) into the container
COPY . .

# Expose the port that Streamlit runs on
EXPOSE 8501

# The command to run your Streamlit app when the container starts
# Using the preferred "exec" form to avoid shell syntax errors
CMD ["streamlit", "run", "app.py"]