Example playbook for ansible issue #8617

logging.yml

- hosts: localhost
  gather_facts: false

  vars:
    myvar: test

  tasks:

  - debug: msg={{myvar}}

main.yml

---
- include: logging.yml

result-output.txt

$ ansible-playbook logging.yml 

PLAY [localhost] ************************************************************** 

TASK: [debug msg=test] ******************************************************** 
ok: [localhost] => {
    "msg": "test"
}

PLAY RECAP ******************************************************************** 
localhost                  : ok=1    changed=0    unreachable=0    failed=0   



$ ansible-playbook main.yml 

PLAY [localhost] ************************************************************** 

TASK: [debug msg={{myvar}}] *************************************************** 
fatal: [localhost] => One or more undefined variables: 'myvar' is undefined

FATAL: all hosts have already failed -- aborting

PLAY RECAP ******************************************************************** 
           to retry, use: --limit @/home/serge/main.retry

localhost                  : ok=0    changed=0    unreachable=1    failed=0