bootstrap.yml

- hosts: all
  gather_facts: no
  become: yes
  become_method: sudo
  pre_tasks:
    - name: when no python2, install python2 for Ansible<2.8
      raw: test -e /usr/bin/python || (apt -y update && apt install -y python-minimal) || (yum install -y python2 python-simplejson)
      register: output
      changed_when: output.stdout | length > 0
      when:
      - ansible_version.full is version_compare('2.8', '<')
      - ( ansible_python_interpreter is not defined or ansible_python_interpreter == "/usr/bin/python" )
      # ansible_os_family conds. cannot be used as this is before gathering facts (where ansible is required)
      ignore_errors: yes
      ## reason for ignore_errors: yes
      ## "version_compare" was replaced with "version" starting ansible 2.5;
      ## CentOS/RHEL 7.x use ansible 2.4, so not able to grasp what version_compare is.
      ## Ansible 2.9 removes the version_compare and does not recognize it any longer.
      ## As our need is to add python2 only on versions before 2.8, if this fails
      ## (due to missing version_compare command), we are fine.
      ## We do not cover cases where it fails due to other reasons, but that is a reasonable risk,
      ## and that issue will be captured later in the flow.
      tags: always
    - name: when no python(2/3), install python3(Debian) python2(RedHat) for Ansible>=2.8
      raw: test -e /usr/bin/python || (apt -y update && apt install -y python3-minimal) || (yum install -y python2 python-simplejson)
      register: output
      changed_when: output.stdout | length > 0
      when:
      - ansible_version.full is version('2.8', '>=') or ( ansible_python_interpreter is defined and ansible_python_interpreter == "/usr/bin/python3" )
      # ansible_os_family conds. cannot be used as this is before gathering facts (where ansible is required)
      ignore_errors: yes
      tags: always
    - name: gathering facts
      setup:
      tags: always
      become: no
    - name: setup repo
      block:
        - name: turn on the EPEL repo on CentOS/RHEL
          yum:
            name: epel-release
            state: present
          when: ansible_distribution == 'CentOS'

        - name: update repositories cache for Debian
          apt:
            update_cache: yes
            cache_valid_time: 86400
          when: ansible_os_family == 'Debian'
      tags:
        - repo
        - never