Ubuntu upgrade with Ansible

upgrade.yml

---
- hosts:
    - all
  become: true
  tasks:
    - name: Update apt cache
      apt: update_cache=yes

    - name: Upgrade packages
      apt: upgrade=dist

    - name: Check if a reboot is required
      register: reboot_required_file
      stat: path=/var/run/reboot-required get_md5=no

    - name: restart machine
      become: yes
      shell: sleep 2 && shutdown -r now "Ansible updates triggered"
      async: 1
      poll: 0
      ignore_errors: true
      when: reboot_required_file.stat.exists == true


    - name: Waiting for server to come back
      become: no
      local_action: wait_for
        port=22
        host={{ inventory_hostname }}
        search_regex=OpenSSH
        delay=10

Thanks for this gist. it helped me a lot.
I had to tweak a little bit as I prefer using Ansible instructions instead of shell, command or raw

- name: update apt cache
  apt:
    update_cache: yes

- name: upgrade packages
  apt:
    upgrade: dist

- name: check if reboot is required
  register: reboot_required_file
  stat:
    path: /var/run/reboot-required get_md5=no

- name: restart machine
  reboot:
    msg: "Reboot initiated by Ansible"
  when: reboot_required_file.stat.exists == true

- name: waiting for machine to come back
  wait_for_connection:
    delay: 10
    connect_timeout: 300
  when: reboot_required_file.stat.exists == true

Wow cool, I totally forgot about this Gist and I am happy that it was to help for someone 🙂
And great improvement with using the reboot taks (not sure if it existed back then when I wrote this).