#
# simple playbook to check all hosts and see how many updates they have pending.
# It could be a lot faster if we didn't gather facts, but we need that for yum vs dnf checking
#
# If you want a pretty sorted list, you need to post process the output here with something
# like:
#
# time ansible-playbook check-for-updates.yml | grep msg\": | awk -F: '{print $2}' | sort
#

- name: check for updates
  hosts: all
  gather_facts: true
  user: root

  tasks:

  - name: check for updates (yum)
    yum: list=updates update_cache=true
    register: yumoutput
    when: ansible_distribution_major_version|int < 22 and ansible_virtualization_role == 'host'

  - name: check for updates (dnf)
    dnf: list=updates
    register: dnfoutput
    when: ansible_distribution_major_version|int > 21 and ansible_virtualization_role == 'host'

  - debug: msg="{{ inventory_hostname}} {{ yumoutput.results|length }}"
    when: yumoutput is defined and yumoutput.results|length > 0

  - debug: msg="{{ inventory_hostname}} {{ dnfoutput.results|length }}"
    when: dnfoutput is defined and dnfoutput.results|length > 0