This blog post will show how to check which updates are available on managed Ubuntu servers using Ansible.

In the previous blog post on the topic, I have shown how to check disk space on multiple machines using the Ansible register option. This post will utilize the same concept and will use the register command.

Playbook

The following playbook will run the apt list command on each Ubuntu server in the inventory and output the result to the console using the debug command.

---
- hosts: servers
  tasks:
    - name:
      apt:
       update_cache: yes
    - name:
      command: apt list --upgradable
      register: updates
    - debug: var=updates.stdout_lines
 

For more Ansible articles visit the main category page.

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