how to solve this?

Hi all,

gokul@gokul:~/blockchain$ docker build -t blockchain .
Sending build context to Docker daemon 348.2kB
Step 1/7 : FROM python:3.6-alpine
---> d6b500d78779
Step 2/7 : WORKDIR /app
---> Using cache
---> b31576fa6e36
Step 3/7 : ADD requirements.txt /app
---> Using cache
---> 3c87ba16e4bc
Step 4/7 : RUN cd /app && pip install -r requirements.txt
---> Using cache
---> de25a55d3e66
Step 5/7 : ADD blockchain.py /app
---> Using cache
---> b35dc1785ac6
Step 6/7 : EXPOSE 5000
---> Using cache
---> bc208757dac8
Step 7/7 : CMD ["python", "blockchain.py", "--port", "5000"]
---> Using cache
---> e159f19487d4
Successfully built e159f19487d4
Successfully tagged blockchain:latest

gokul@gokul:~/blockchain$ docker run --rm -p 80:5000 blockchain
* Running on http://0.0.0.0:5000/ (Press CTRL+C to quit)

After this i couldn't get anything. what to do?