How to add docker port and get dockerfile

Get the Dockerfile from the Docker image

docker history --format {{.CreatedBy}} --no-trunc=true $DockerImage
|sed “s//bin/sh\ -c\ #(nop)\ //g”|sed “s//bin/sh\ -c/RUN/g” |
tac

Note: This docker file does not map directories or ports and does not execute the docker startup script or server service.

Docker multiple port mapping

Docker multiple ports

docker run -it -d --name container-name -p p1:p1 -p p2:p2 new-image-name -ip xxxxx —restart=always

Method 1:

Adding ports at runtime

/var/lib/docker/containers/{container_id}/hostconfig.json

Method 2:
Submit a running container as an image:

docker commit containerid now/live

Run the image and add the port:

docker run -d -p 8000:80 now/live /bin/bash

Get the container IP:

docker inspect container_name | grep IPAddressiptable forwarding portiptables -t
nat -A DOCKER -p tcp --dport 8001 -j DNAT --to-destination
172.17.0.19:8000

Note: Mac may not be able to enter the screen

Passing files to Docker

sudo docker save -o /home/ubuntu_14804.tar 93123213127ccc

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