RUN { dockerfile code example
Example 1: docker run command on container
sudo docker exec -it <container name> <command>
Example 2: create dockerfile
FROM ubuntu:18.04
COPY . /app
RUN make /app
CMD python /app/app.py
sudo docker exec -it <container name> <command>
FROM ubuntu:18.04
COPY . /app
RUN make /app
CMD python /app/app.py