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

# Set the working directory
WORKDIR /app

# Copy the requirements file and install dependencies
COPY requirements.txt ./
RUN pip install --upgrade pip && pip install -r requirements.txt

# Copy the rest of the application code
COPY . .

# Set environment variables for production
ENV FLASK_ENV=production
ENV FLASK_APP=isalive.py
ENV FLASK_RUN_HOST=0.0.0.0
ENV FLASK_RUN_PORT=5050

# Expose port 7000 (the internal port where the app will run)
EXPOSE 5050

# Use Gunicorn to serve the app on port 7000
CMD ["gunicorn", "-w", "4", "-b", "0.0.0.0:5050", "run:app"]