DOCKERFILE

# Use official Python 3.10 base image
FROM python:3.10-slim

# Set working directory
WORKDIR /app

# Prevent Python from writing .pyc files and buffering stdout/stderr
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1

# Install system dependencies (optional: for building some Python packages)
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements first for efficient caching
COPY requirements.txt .

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

# Copy project files into container
COPY . .

# Expose port for Dash
EXPOSE 10000

# Command to run the Dash app
CMD ["python", "deploy_on_render.py"]