ansible_role_base/tasks/packages.yml

---
- name: install base packages for all operating systems
  become: true
  package:
    name: "{{ base__packages }}"
    state: "{{ base__package_state }}"

- name: install python3 for all non-legacy systems
  become: true
  package:
    name: "{{ base__python3_packages }}"
    state: "{{ base__package_state }}"
  when: |
    ansible_distribution == 'Ubuntu' and ansible_distribution_version | float >= 16.0 or
    ansible_os_family == 'RedHat' and ansible_distribution_version | float >= 7 or
    ansible_distribution == 'Debian' and ansible_distribution_version | float >= 7

- name: install python for systems where python3 packages are renamed to python
  become: true
  package:
    name: "{{ base__python_packages }}"
    state: "{{ base__package_state }}"
  when: ansible_os_family == 'Archlinux'

- name: install packages for all non-legacy systems
  become: true
  package:
    name: "{{ base__modern_packages }}"
    state: "{{ base__package_state }}"
  when: |
    ansible_distribution == 'Ubuntu' and ansible_distribution_version | float >= 16.0 or
    ansible_os_family == 'RedHat' and ansible_distribution_version | float >= 7 or
    ansible_distribution == 'Debian' and ansible_distribution_version | float >= 8 or
    ansible_os_family == 'Archlinux'

- name: install packages for all non-legacy Debian/Ububntu systems
  become: true
  package:
    name: "{{ base__debian_packages }}"
    state: "{{ base__package_state }}"
  when: |
    ansible_distribution == 'Ubuntu' and ansible_distribution_version | float >= 16.0 or
    ansible_distribution == 'Debian' and ansible_distribution_version | float >= 8

- name: install packages for all reasonable non-legacy systems
  become: true
  package:
    name: "{{ base__linux_packages }}"
    state: "{{ base__package_state }}"
  when: |
    ansible_distribution == 'Ubuntu' and ansible_distribution_version | float >= 18.0 or
    ansible_distribution == 'Fedora' and ansible_distribution_version | float >= 32 or
    ansible_distribution == 'Debian' and ansible_distribution_version | float >= 9 or
    ansible_os_family == 'Archlinux'