---
- name: Install diskimage-builder using pip.
  pip:
    name: "{{ diskimage_builder_pip_name }}"
  when: diskimage_builder_pip_version is none

- name: Install diskimage-builder using pip.
  pip:
    name: "{{ diskimage_builder_pip_name }}"
    version: "{{ diskimage_buidler_pip_version }}"
  when: diskimage_builder_pip_version is not none