- name: Install backported trusty kernel onto 12.04
  apt:
    pkg: "{{ item }}"
    state: "{{ kernel_pkg_state }}"
    update_cache: yes
    cache_valid_time: 600
  with_items:
    - linux-image-generic-lts-trusty
    - linux-headers-generic-lts-trusty
  register: kernel_result
  when: "ansible_distribution_version|version_compare('12.04', '=')"

- name: Install Xorg packages for backported kernels (very optional)
  apt:
    pkg: "{{ item }}"
    state: installed
    update_cache: yes
    cache_valid_time: 600
  with_items:
    - xserver-xorg-lts-trusty
    - libgl1-mesa-glx-lts-trusty
  register: xorg_pkg_result
  when: "install_xorg_pkgs and (kernel_result|changed or kernel_result|success)"

- name: Install latest kernel for Ubuntu 13.04+
  apt:
    pkg: "{{ item }}"
    state: "{{ kernel_pkg_state }}"
    update_cache: yes
    cache_valid_time: 600
  with_items:
    - "linux-image-extra-{{ ansible_kernel }}"
    - linux-image-extra-virtual
  when: "ansible_distribution_version|version_compare('13.04', '=')
      or ansible_distribution_version|version_compare('13.10', '=')
      or install_kernel_extras"

# Fix for https://github.com/dotcloud/docker/issues/4568
- name: Install cgroup-lite for Ubuntu 13.10
  apt:
    pkg: cgroup-lite
    state: "{{ cgroup_lite_pkg_state }}"
    update_cache: yes
    cache_valid_time: 600
  register: cgroup_lite_result
  when: "ansible_distribution_version|version_compare('13.10', '=')"

- name: Reboot instance
  command: /sbin/shutdown -r now
  register: reboot_result
  when: "(ansible_distribution_version|version_compare('12.04', '=') and kernel_result|changed)
      or (ansible_distribution_version|version_compare('13.10', '=') and cgroup_lite_result|changed)
      or xorg_pkg_result|changed"

- name: Wait for instance to come online (10 minute timeout)
  become: no
  local_action:
    module: wait_for
    host: "{{ ansible_ssh_host|default(inventory_hostname) }}"
    port: "{{ ansible_ssh_port|default(ssh_port) }}"
    delay: 30
    timeout: 600
    state: started
  when: "(ansible_distribution_version|version_compare('12.04', '=') and reboot_result|changed)
      or (ansible_distribution_version|version_compare('13.10', '=') and cgroup_lite_result|changed)"