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

# Set the working directory inside the container
WORKDIR /app

# Copy the file that lists the dependencies to the working directory
COPY requirements.txt .

# Install the dependencies from requirements.txt
# --no-cache-dir ensures the image is smaller
RUN pip install --no-cache-dir -r requirements.txt

# Copy all the other files from your local project folder (app.py, model.pkl)
# into the container's working directory
COPY . .

# Inform Docker that the container listens on port 8080 at runtime
EXPOSE 8080

# Define the command to run your application
# This will execute "python app.py" when the container starts
CMD ["python", "app.py"]