Push docker container

In this post, I will give you an example for what I do to push a docker container into docker hub.

Here I will use my repository in docker hub i.e. arwankhoiruddin/hadoopbuild. You can find it here: https://hub.docker.com/r/arwankhoiruddin/hadoopbuild/

In order to modify it, first I have to login

$ docker login
Login with your Docker ID to push and pull images from Docker Hub. If you don't have a Docker ID, head over to https://hub.docker.com to create one.
Username (arwankhoiruddin): arwankhoiruddin
Password: 
Login Succeeded

Then I run the docker image

$ docker run -it arwankhoiruddin/hadoopbuild /bin/bash

If it is not in my computer, it will download automatically from docker hub. After I finish, I type exit and I can save the changes into the docker hub. Followings are the steps

$ docker ps -a
CONTAINER ID        IMAGE                   COMMAND             CREATED             STATUS                         PORTS               NAMES
856e27749098        ubuntu:14.04            "/bin/bash"         About an hour ago   Exited (0) About an hour ago                       awesome_aryabhata

Then commit the changes

$ docker commit 856e27749098 arwankhoiruddin/hadoopbuild

Tag the image

$ docker tag arwankhoiruddin/hadoopbuild latest

Push the image

$ docker push arwankhoiruddin/hadoopbuild
The push refers to repository [docker.io/arwankhoiruddin/hadoopbuild]
eed11865a805: Pushing [=>                                                 ]  19.82MB/959.3MB
776d5289b76e: Layer already exists 
0fb55a72eab2: Layer already exists 
a30ab2bcda94: Layer already exists 
99840408c5ea: Layer already exists 
a8e78858b03b: Layer already exists 

Done