Ansible playbook to update and upgrade machines via apt

makr-dist-upgrade.yml

# Config retrieved from:
# https://realguess.net/2014/12/21/ansible-update-servers-to-the-latest-and-reboot/

- name: update and upgrade machines via apt
  hosts: makr # To change to own hosts / groups
  sudo: true
  tasks:
   - name: Check if there are packages available to be installed/upgraded
     command: /usr/lib/update-notifier/apt-check --package-names
     register: packages
   - name: Upgrade all packages to the latest version
     apt: update_cache=yes upgrade=dist
     when: packages.stderr != ""
   - name: Check if a reboot is required
     register: file
     stat: path=/var/run/reboot-required get_md5=no
   - name: Reboot the server
     command: /sbin/reboot
     when: file.stat.exists == true