https://computingarts.com/tags/variables/ Recent content in Variables on Computing Arts Hugo -- 0.146.0 en-us Tue, 14 Apr 2026 14:00:00 -0400 https://computingarts.com/posts/2026-04-14-ansible-register-variable-undefined-in-next-task/ Tue, 14 Apr 2026 14:00:00 -0400 https://computingarts.com/posts/2026-04-14-ansible-register-variable-undefined-in-next-task/ <h1 id="why-ansible-register-variable-is-undefined-in-the-next-task">Why Ansible <code>register</code> Variable Is Undefined in the Next Task</h1> <p>You registered a variable in one task, and the next task fails with <code>&quot;msg&quot;: &quot;The task includes an option with an undefined variable&quot;</code>. The variable is right there — you can see it in the task above. What&rsquo;s going on?</p> <p>This is one of the most common Ansible debugging rabbit holes. There are four distinct causes, and they look identical until you know what to look for.</p>