upgrade.yml

---

- name: Upgrade the hosts
  hosts: upgradeable
  gather_facts: no
  become: yes
  vars_prompt:
    - name: "upgrade"
      prompt: "Do you want to also run the upgrade? [Y,n]"
      default: "y"
      private: no
  tasks:
    - name: update apt cache if needed and autoremove packages
      apt:
        update_cache: yes
        cache_valid_time: 14400 # apt-get update only if old than 4 hours
        autoremove: yes
    - name: install aptitude
      apt:
        name: "{{ item }}"
        state: present
      with_items:
        - aptitude
    - name: show apt-get upgrade
      command: "apt-get --just-print upgrade"
      args:
        warn: no
      changed_when: false
      register: output
    - debug:
        var: output.stdout_lines
      when: "output.stdout != 'None'"
    - name: do safe-upgrade
      apt:
        upgrade: safe
      register: aptout
      when: "output.stdout != 'None' and upgrade in ('y','Y')"