First, clone a repository

$ git clone https://github.com/docker/getting-started.git

Now, build the image

$ cd getting-started
$ docker build -t docker101tutorial .

Run your first container

$ docker run -d -p 80:80 --name docker-tutorial docker101tutorial

Now save and share your image

$ docker tag docker101tutorial lonelypale/docker101tutorial
$ docker push lonelypale/docker101tutorial