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Create image

  1. create a docker file
FROM Ubuntu 

RUN apt-get updates
RUN apt-get install python

RUN pip install flask
RUN pip install flask-mysql

COPY . /opt/source-code

ENTRYPOINT FLASK_APP=/opt/source-code/app.py flask run
  1. build image
docker build Dockerfile -t container/app
  1. make it avaliable
docker push container/app

CMD​

docker run ubuntu [COMMNAD]

docker run ubuntu sleep 5

docker ps

write command in the docker file​

  • docker file : ubuntu-sleeper
FROM Ubuntu

CMD sleep 5
docker build ubuntu-sleeper .

docker run ubuntu-sleeper

entry point and cmd​

FROM uBUNTU

ENTRYPOINT ["sleep"]

CMD ["5"]
// overwrite the cmd in docker file
docker run ubuntu-sleeper 5

In this case, if only run docker run ubuntu-sleeper, it will sleep 5 second.