#
# simple playbook to see updates and uptimes per. host and OS info
#

---
# Note that as of 2025-08-04 ansible_pkg_mgr is DNF for all hosts, so
# we don't split this and thus. do both Fed/RH at once...

- name: Check for updates
  hosts: distro_RedHat:distro_CentOS:distro_Fedora:!ocp*:!worker*
  user: root
  become: false

  tasks:

#  We do this explicitly because ansible will cache facts, but we want
# to make sure we have the latest uptime etc.
  - name: Gather the latest uptime and OS
    ansible.builtin.setup:
      gather_subset: "!all,min,hardware"
    tags: updates

# This should be in our facts, but I don't see it. Newer ansible?
  - name: Gather boot-id, if we can
    ansible.builtin.slurp: src=/proc/sys/kernel/random/boot_id
    register: boot_id_data
    ignore_errors: yes
    tags: updates

  - name: Decode the real boot-id, or use a default
    ansible.builtin.set_fact:
      boot_id: "{{ (boot_id_data.content | b64decode).strip() | default('?') }}"
    tags: updates

#
# We use the command module here because the real module can't expire
#

  - name: Make dnf recheck for new metadata from repos
    ansible.builtin.command: dnf clean expire-cache
    tags:
    - expire
    - updates

  - name: Check for updates (dnf)
    dnf: list=updates
    register: pkgoutput
    tags: updates

  # Dump all our information into a file
  - name: Generate the Upgrade+uptime report
    ansible.builtin.lineinfile:
      regexp: '^{{inventory_hostname}} '
      line: "{{inventory_hostname}} {{pkgoutput.results|length}} {{ansible_uptime_seconds}} {{ansible_date_time['date']}} {{ansible_distribution}} {{ansible_distribution_version}} {{ansible_machine_id}} {{boot_id}}"
      path: /var/log/ansible-list-updates-uptime.txt
      create: yes
    delegate_to: localhost
    tags: updates

- name: Create a daily backup of the updates+uptime file.
  hosts: localhost
  tasks:

  - name: Sort and copy the file
    ansible.builtin.command:
      cmd: sort /var/log/ansible-list-updates-uptime.txt -o /var/log/ansible-list-updates-uptime.txt.{{ now(utc=true, fmt='%Y-%m-%d') }}
    tags: backup

  - name: Copy the sorted file back over, so it's pretty
    ansible.builtin.copy:
      src: /var/log/ansible-list-updates-uptime.txt.{{ now(utc=true, fmt='%Y-%m-%d') }}
      dest: /var/log/ansible-list-updates-uptime.txt
    tags: backup