docker installation in kali

To install Docker in Kali, these were the steps I followed:

    Create a backports file and add the entry for Debian Wheezy:

    echo 'deb http://http.debian.net/debian wheezy-backports main' > /etc/apt/sources.list.d/backports.list && apt-get update

    Install ca-certificates and allow APT to operate via https:

    apt-get install apt-transport-https ca-certificates

    Add the appropriate GPG key:

    apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D

    Add the appropriate Docker source entry:

    echo 'deb https://apt.dockerproject.org/repo debian-wheezy main' > /etc/apt/sources.list.d/docker.list && apt-get update

    Install Docker and start its service:

    apt-get install docker-engine && service docker start

    Verify that Docker is working:

    docker run hello-world