How to upload a docker image to Docker Hub

Lets upload the docker image you build locally to docker hub so you or others can pull it at a later time to use. I am assuming you already have a login to docker hub. If not please create an account. Its free !! 

1. From a command prompt type:
   
   docker images
   
   This will list out all the docker images you have on your machine including the one you build. 
2. Now create a tag for the image you created.  On the previous post I named it Jupyter-notebook:
   
   docker tag jupyter_notebook:latest rajupillai/jupyter_notebook:latest
   
   
3. Now lets check if the new tagged image is created :
   
   docker images
   
   You should see the one you created with the tag
4. Lets push this image to the hub :
   
   

   docker push rajupillai/jupyter_notebook:latest
   

5. If you want to make it public , so anyone can download it then :
   
   • Go to Docker Hub and log in.
   • Click on your profile icon and go to Repositories.
   • Click on your repository (rajupillai/jupyter_notebook in the example).
   • Click on the Settings tab for the repository.
   • Under Visibility, select Public.
   • Save the changes.

If you or anyone want to pull this to a new machine all you have to do now is :

docker pull rajupillai/jupyter_notebook:latest