part 5 dockerizing simple flask application and docker exec

### vim Dockerfile

FROM python:3.5
RUN pip install  Flask==0.11.1
RUN useradd -ms /bin/bash admin
USER admin
WORKDIR /app
COPY app /app
CMD ["python", "app.py"]

###

docker build -t urgen/dockerapp:1.01

docker images   <copy imageid>

docker run -d -p 5000:8080

    -d = run container in background
    -p = expose port
    5000 = port of container
    8080 = port of real host


user1@localhost ~ $ docker run -d -i -t busybox
8ba73738bf52630e31106be2f3a1cb4d4e0ab8f79d311f38c6ec8ff5ce7eba24

# to docker exec the container must be running in background (-d option)
docker exec -it 8ba73738bf52630e31106be2f3a1cb4d4e0ab8f79d311f38c6ec8ff5ce7eba24  sh