kubespray/roles/download/tasks/prep_download.yml

---
- name: prep_download | Set a few facts
  set_fact:
    download_force_cache: "{{ true if download_run_once else download_force_cache }}"
  tags:
    - facts

- name: prep_download | Create staging directory on remote node
  file:
    path: "{{ local_release_dir }}/images"
    state: directory
    recurse: yes
    mode: 0755
    owner: "{{ ansible_ssh_user | default(ansible_user_id) }}"
  when:
    - ansible_os_family not in ["CoreOS", "Container Linux by CoreOS"]

- name: prep_download | Create local cache for files and images
  file:
    path: "{{ download_cache_dir }}/images"
    state: directory
    recurse: yes
    mode: 0755
  delegate_to: localhost
  delegate_facts: no
  run_once: true
  become: false
  tags:
    - localhost

- name: prep_download | On localhost, check if passwordless root is possible
  command: "true"
  delegate_to: localhost
  run_once: true
  register: test_become
  changed_when: false
  ignore_errors: true
  become: true
  when:
    - download_localhost
  tags:
    - localhost
    - asserts

- name: prep_download | On localhost, check if user has access to docker without using sudo
  shell: "{{ docker_bin_dir }}/docker images"
  delegate_to: localhost
  run_once: true
  register: test_docker
  changed_when: false
  ignore_errors: true
  become: false
  when:
    - download_localhost
  tags:
    - localhost
    - asserts

- name: prep_download | Parse the outputs of the previous commands
  set_fact:
    user_in_docker_group: "{{ not test_docker.failed }}"
    user_can_become_root: "{{ not test_become.failed }}"
  when:
    - download_localhost
  tags:
    - localhost
    - asserts

- name: prep_download | Check that local user is in group or can become root
  assert:
    that: "user_in_docker_group or user_can_become_root"
    msg: >-
      Error: User is not in docker group and cannot become root. When download_localhost is true, at least one of these two conditions must be met.
  when:
    - download_localhost
  tags:
    - localhost
    - asserts