Why Ansible include_tasks Variables Are Not Defined in the Parent Play

Why Ansible include_tasks Variables Are Not Defined in the Parent Play You define a variable inside an include_tasks file. The task runs successfully. Then the very next task in your parent play fails with variable is undefined. What just happened? This is one of the most confusing Ansible behaviors, and it bites people repeatedly because it looks like a bug. It’s not β€” it’s a scoping decision β€” but understanding why it works this way helps you fix it fast. ...

April 15, 2026 Β· 5 min Β· 853 words Β· Rob Washington