- name: Create update Script
  copy:
    dest: /usr/local/bin/nightly-update.sh
    content: |
      #!/bin/bash
      {
      echo "Starting update at $(date)"
      apt-get update -q
      apt-get -y -o Dpkg::Options::=--force-confdef -o Dpkg::Options::=--force-confold dist-upgrade --auto-remove
      echo "Update completed at $(date)"
      } >> "/var/log/nightly-update.log" 2>&1
      shutdown -r now
    mode: '0755'

- name: Ensure at is installed
  apt:
    name: at
    state: present

- name: Ensure atd (at daemon) is running and enabled
  service:
    name: atd
    state: started
    enabled: true

- name: Schedule nightly-update.sh to run between 5:00-6:59 AM once
  shell: |
    hour=$(shuf -i 5-6 -n 1)
    minute=$(shuf -i 0-59 -n 1)
    echo "/usr/local/bin/nightly-update.sh" | at "$hour:$minute"
    echo "update and restart scheduled for $hour:$minute"
  register: restard_scheduled

- name: output "restart schedule"
  debug:
    var: restard_scheduled.stdout_lines