---
# File: main.yml
# Type: task
# Part: Docker

- name: Docker | Check Ubuntu release
  fail: msg=Docker only support Ubuntu from {{ ansible_distribution_version }}
  when: ansible_distribution != 'Ubuntu' or ansible_lsb.major_release < 12

## Kernel
- name: Docker | Upgrade 12.04 kernel
  apt: name={{ item }} state=latest
  with_items:
    - linux-image-generic-lts-trusty
    - linux-headers-generic-lts-trusty
  when: ansible_distribution == 'Ubuntu' and ansible_distribution_version == '12.04'
  register: kernel_updated
- name: Docker | Reboot
  command: reboot
  when: kernel_updated | changed
- name: Docker | Wait for SSH
  local_action: wait_for host={{ ansible_ssh_host }} port={{ ansible_ssh_port }} delay=30 timeout=900 state=started
  when: kernel_updated | changed
# - name: Docker | Upgrade 13.04+ kernel extra
#   apt: name=linux-image-extra-{{ ansible_kernel }} state=latest update_cache=yes cache_valid_time=600
#   when: ansible_distribution_version != '12.04'

## Uninstall
- name: Docker | Remove legacy package
  apt: name=lxc-docker state=absent
- name: Docker | Remove legacy ppa
  apt_repository: repo='deb https://get.docker.io/ubuntu docker main' state=absent
- name: Docker | Remove legacy ppa file
  file: path=/etc/apt/sources.list.d/get_docker_io_ubuntu.list state=absent
- name: Docker | Remove legacy ppa key
  apt_key: id=A88D21E9 url=http://p80.pool.sks-keyservers.net/pks/lookup?op=get&search=0x36A1D7869245C8950F966E92D8576A8BA88D21E9 state=absent

## Install
- name: Docker | Install ppa key
  apt_key: id=2C52609D url=http://p80.pool.sks-keyservers.net/pks/lookup?op=get&search=0x58118E89F3A912897C070ADBF76221572C52609D state=present
- name: Docker | Install ppa
  apt_repository: repo='deb https://apt.dockerproject.org/repo ubuntu-{{ ansible_lsb.codename }} main' state=present
- name: Docker | Install package
  apt: name=docker-engine state={{ docker_apt_state }}

- name: Docker | Create base directory
  file: state=directory path=/srv/docker owner=root group=root mode=0775
# - name: Docker | Create legacy symlink
#   file: state=link path=/opt/docker src=/srv/docker

## DockerCompose
- name: Docker | Install DockerCompose
  tags: system_docker-compose
  include: docker-compose.yml
  when: docker_compose_install

## DockerGen
- name: Docker | Install DockerGen
  tags: system_docker-gen
  include: docker-gen.yml
  when: docker_gen_install

## Check service
- name: Docker | Check service daemon
  service: name=docker state=started