Deps for needs-restarting

[Tronde]

I would like to start this issue to a follow up on a comment from @Klaas-:

you can use needs-restarting, but it uses shell/command

- name: check if reboot is needed
  shell: "{{ needs_restarting_command[ansible_distribution_major_version | int] }}"
  failed_when: False
  register: needs_restarting
  changed_when: False

definition of the var

needs_restarting_command:
  7: /usr/bin/needs-restarting -r
  8: /usr/bin/dnf needs-restarting -r

usage in the reboot task:
when: needs_restarting.rc is defined and needs_restarting.rc != 0

on rhel7 deps are yum-utils, on rhel8 python3-dnf-plugins-core

Originally posted by @Klaas- in #12 (comment)

@Klaas- Can you confirm the following? While python3-dnf-plugins-core seems to be included in the minimal install environment of RHEL 8 providing /usr/bin/dnf needs-restarting -r you have to install yum-utils on RHEL 7 based on minimal install envirionment to be able to use the command, right?

[Tronde]

The package yum-utils exists in RHEL 7, 8 and 9. I tend to declare it as a role dependency for this role and relinquish the use of needs_restarting_command var I would need otherwise.

[Klaas-]

if you don't want to go the minimal way you can just make sure yum-utils is present via your role, that's going to be the easiest solution. I personally like to avoid the yum compatibility layer.