---
- name: update package list
  sudo: true
  apt: update_cache=true

- name: install docker dependencies
  sudo: true
  apt: name={{ item }} install_recommends=false
  with_items:
    # Docker has serious problems on EC2: http://www.danstutzman.com/2014/07/speed-up-docker-on-ec2
    # and https://github.com/docker/docker/issues/4036
    - linux-generic
    - python-pip
  notify: restart server

# make sure resteart is done now, not at end of play
- meta: flush_handlers

- name: install docker
  sudo: true
  # install script from https://docs.docker.com/installation/ubuntulinux/
  # TODO this is not idempotent
  shell: curl -sSL https://get.docker.com/ubuntu/ | sudo sh  

- name: install docker python API
  sudo: true
  pip: name=docker-py

- name: enable docker for standard user
  sudo: true
  user: name={{ ansible_ssh_user }} groups=docker append=yes
  notify: restart sshd