vi app.py import json import time if __name__ == '__main__': while True: d = {'name': 'fakenerd', 'time_ms': int(time.time() * 1000)} print(json.dumps(d)) time.sleep(3) vi Dockerfile FROM python:3.7.5-slim WORKDIR /app COPY . /app ENTRYPOINT ["python", "-u", "app.py"] docker build -t py_log:latest . docker image tag py_log:latest seongdong/py_log:latest docker push seongdong/py_log:latest