Dockerfile

# Use the official lightweight Python image.
# https://hub.docker.com/_/python
FROM python:3.9-slim

# Set environment variables
ENV PYTHONDONTWRITEBYTECODE 1
ENV PYTHONUNBUFFERED 1

# Create and set working directory
WORKDIR /app

RUN apt-get update \
  && apt-get install wkhtmltopdf -y \
  && mv /usr/bin/wkhtmltopdf /usr/local/bin/.

# Copy system package requirements file
COPY packages.txt .

RUN apt-get update

# Copy the application requirements file
COPY requirements.txt .

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

# Copy the application code
COPY . .

# Expose the Streamlit port
EXPOSE 8501

# Run Streamlit app
CMD ["streamlit", "run", "app.py"]