Install Docker with Ansible

docker_install.yml

- name: add docker repository key
  sudo: yes
  shell: curl https://get.docker.io/gpg | apt-key add -

- name: add docker repository
  sudo: yes
  shell: echo deb http://get.docker.io/ubuntu docker main > /etc/apt/sources.list.d/docker.list

- name: update apt
  apt: update_cache=yes
  sudo: yes

- name: install docker
  apt: pkg=lxc-docker state=installed
  sudo: yes