nodepool/virt_images/roles/base/tasks/main.yaml

---
- assert:
    that:
      - image_url is defined
      - image_checksum is defined
      - image is defined
      - image_url != ''
      - image_checksum != ''
      - image != ''

- name: Set some runtime facts
  set_fact:
    image_cache_file: "{{ image_cache_dir }}/{{ image }}"
    image_tmp_dir: "/var/tmp/{{ image_output | basename }}"

- name: Make sure cache directory exist
  file:
    path: "{{ image_cache_dir }}"
    state: directory

- name: Delete previous image cache
  file:
    path: "{{ image_cache_file }}"
    state: absent
  when: image_wipe_cache

- name: Check if image is already downloaded
  stat:
    path: "{{ image_cache_file }}"
  register: _image_cache_file_stat

- name: Download if checksum doesn't match
  get_url:
    url: "{{ image_url }}"
    dest: "{{ image_cache_file }}"
    checksum: "{{ image_checksum }}"
  when: not _image_cache_file_stat.stat.exists

- name: Extract the image if necessary
  command: "xz -k -d {{ image_cache_file }}.xz"
  args:
    chdir: "{{ image_cache_dir }}"
    creates: "{{ image_cache_file }}"

- name: Update the cache
  command: "virt-customize -m {{ memsize }} -a {{ image_cache_file }} --update"
  environment: "{{ virt_customize_env|default({}) }}"

- name: Create tmp directory
  file:
    path: "{{ image_tmp_dir }}"
    state: directory
    mode: '0755'

- name: Set filename copy fact
  set_fact:
    image_file: "{{ image_tmp_dir }}/{{ image_cache_file | basename }}"

- name: Copy the image
  copy:
    src: "{{ image_cache_file }}"
    dest: "{{ image_file }}"
    remote_src: true
    mode: '0644'

- set_fact:
    virt_customize_cmd:
      - "virt-customize -m {{ memsize }} -a {{ image_file }}"
      - "--selinux-relabel"
      - "--install '{{ base_packages | join(',') }}'"