Drop gunicorn and bind to 0.0.0.0 (#12)

Reviewed-on: #12
Co-authored-by: Madis Mägi <madis.magi@k-space.ee>
Co-committed-by: Madis Mägi <madis.magi@k-space.ee>

Dockerfile

@@ -5,4 +5,4 @@ COPY requirements.txt ./
 RUN pip install -r requirements.txt
 
 COPY *.py ./
-CMD ["gunicorn", "--worker-class", "sanic.worker.GunicornWorker", "--workers", "10", "--bind", "[::]:5000", "doorboy:app", "--timeout", "90"]
+CMD python doorboy.py