added docker and makefile

Dockerfile

@@ -0,0 +1,16 @@
+FROM python:3.9-slim
+
+# disable buffering to show logs in real time
+ENV PYTHONUNBUFFERED=1
+
+# set working directory to /app
+WORKDIR /app
+
+COPY requirements.txt ./
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY . .
+
+EXPOSE 5121
+
+CMD ["python", "app.py"]