expose port on docker code example

Example 1: docker port

HOST:CONTAINER

Example 2: how to add a port to a running docker container

#Stop your container, in this example test01
docker stop test01
#Create a new image named test02 from test01 container
docker commit test01 test02
#Create a new container test02 with the new port from the new image
docker run -p 8080:8080 -td test02