kubespray/roles/bootstrap-os/tasks/bootstrap-centos.yml

---
- name: check if atomic host
  stat:
    path: /run/ostree-booted
  register: ostree

- set_fact:
    is_atomic: "{{ ostree.stat.exists }}"

- name: Check presence of fastestmirror.conf
  stat:
    path: /etc/yum/pluginconf.d/fastestmirror.conf
  register: fastestmirror

# fastestmirror plugin actually slows down Ansible deployments
- name: Disable fastestmirror plugin
  lineinfile:
    dest: /etc/yum/pluginconf.d/fastestmirror.conf
    regexp: "^enabled=.*"
    line: "enabled=0"
    state: present
  when: fastestmirror.stat.exists

- name: Add proxy to /etc/yum.conf if http_proxy is defined
  lineinfile:
    path: "/etc/yum.conf"
    line: "proxy={{http_proxy}}"
    create: yes
    state: present
  when: http_proxy is defined

- name: Install packages requirements for bootstrap
  yum:
    name: "{{ packages }}"
    state: present
  vars:
    packages:
      - libselinux-python
      - epel-release
  when:
    - not is_atomic

- name: Install pip for bootstrap
  yum:
    name: python-pip
    state: present
  when:
    - not is_atomic