Using include within an included role from within a role results in AttributeError

[mtnbikenc]

ISSUE TYPE

• Bug Report

COMPONENT NAME

• role + include_role + include

ANSIBLE VERSION

ansible 2.4.0 (devel d19b4f2977) last updated 2017/07/26 13:45:18 (GMT -400)
  config file = /etc/ansible/ansible.cfg
  configured module search path = [u'/home/rteague/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']
  ansible python module location = /home/rteague/dev/clusters/aws-c2/ansible/lib/ansible
  executable location = /home/rteague/dev/clusters/aws-c2/ansible/bin/ansible
  python version = 2.7.13 (default, Jun 26 2017, 10:20:05) [GCC 7.1.1 20170622 (Red Hat 7.1.1-3)]

CONFIGURATION

OS / ENVIRONMENT

• N/A

SUMMARY

When running the playbooks defined below, an AttributeError exception is created when unable to parse the path.

• playbook calls role
• role calls include_role
• included role calls include

STEPS TO REPRODUCE

ansible-playbook -i localhost, playbook.yml -vvvv 

File organization

tree .
.
├── playbook.yml
└── roles
    ├── test
    │   └── tasks
    │       └── main.yml
    └── test-1
        └── tasks
            ├── included_file.yml
            └── main.yml

5 directories, 4 files

playbook.yml

- name: Test Playbook
  hosts: localhost
  connection: local
  gather_facts: no

  roles:
    - test

roles/test/tasks/main.yml

---
- include_role:
    name: test-1
  vars:
    some_file: included_file

roles/test-1/tasks/main.yml

---
- name: Include some task file
  include: "{{ some_file }}.yml"

roles/test-1/tasks/included_file.yml

---
  - debug:
      msg: "included file"

EXPECTED RESULTS

Expect the debug task in included_file.yml to run.

ACTUAL RESULTS

$ ansible-playbook -i localhost, playbook.yml -vvvv                                                                                        
ansible-playbook 2.4.0 (devel d19b4f2977) last updated 2017/07/26 13:45:18 (GMT -400)
  config file = /etc/ansible/ansible.cfg
  configured module search path = [u'/home/rteague/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']
  ansible python module location = /home/rteague/dev/clusters/aws-c2/ansible/lib/ansible
  executable location = /home/rteague/dev/clusters/aws-c2/ansible/bin/ansible-playbook
  python version = 2.7.13 (default, Jun 26 2017, 10:20:05) [GCC 7.1.1 20170622 (Red Hat 7.1.1-3)]
Using /etc/ansible/ansible.cfg as config file
setting up inventory plugins
Set default localhost to localhost
Parsed localhost, inventory source with host_list plugin
[DEPRECATION WARNING]: The use of 'include' for tasks has been deprecated. Use 'import_tasks' for static inclusions or 'include_tasks' for 
dynamic inclusions.
This feature will be removed in a future release. Deprecation warnings can be disabled by setting 
deprecation_warnings=False in ansible.cfg.
Loading callback plugin default of type stdout, v2.0 from /home/rteague/dev/clusters/aws-c2/ansible/lib/ansible/plugins/callback/__init__.pyc

PLAYBOOK: playbook.yml ***********************************************************************************************************************
1 plays in playbook.yml

PLAY [Test Playbook] *************************************************************************************************************************
META: ran handlers

TASK [test-1 : Include some task file] *******************************************************************************************************
task path: /home/rteague/dev/clusters/aws-c2/reproducer/roles/test-1/tasks/main.yml:3
ERROR! Unexpected Exception, this is probably a bug: 'NoneType' object has no attribute 'rfind'
the full traceback was:

Traceback (most recent call last):
  File "/home/rteague/dev/clusters/aws-c2/ansible/bin/ansible-playbook", line 106, in <module>
    exit_code = cli.run()
  File "/home/rteague/dev/clusters/aws-c2/ansible/lib/ansible/cli/playbook.py", line 130, in run
    results = pbex.run()
  File "/home/rteague/dev/clusters/aws-c2/ansible/lib/ansible/executor/playbook_executor.py", line 153, in run
    result = self._tqm.run(play=play)
  File "/home/rteague/dev/clusters/aws-c2/ansible/lib/ansible/executor/task_queue_manager.py", line 289, in run
    play_return = strategy.run(iterator, play_context)
  File "/home/rteague/dev/clusters/aws-c2/ansible/lib/ansible/plugins/strategy/linear.py", line 333, in run
    variable_manager=self._variable_manager
  File "/home/rteague/dev/clusters/aws-c2/ansible/lib/ansible/playbook/included_file.py", line 106, in process_include_results
    parent_include_dir = os.path.dirname(parent_include._role_path)
  File "/usr/lib64/python2.7/posixpath.py", line 122, in dirname
    i = p.rfind('/') + 1
AttributeError: 'NoneType' object has no attribute 'rfind'

Here is output with Ansible 2.3.1

ansible 2.3.1.0
  config file = /home/rteague/dev/clusters/aws-c2/ansible.cfg
  configured module search path = Default w/o overrides
  python version = 2.7.13 (default, Jun 26 2017, 10:20:05) [GCC 7.1.1 20170622 (Red Hat 7.1.1-3)]

$ ansible-playbook -i localhost, playbook.yml -vvvv                                                                                        
Using /etc/ansible/ansible.cfg as config file
Set default localhost to localhost
Loading callback plugin default of type stdout, v2.0 from /usr/lib/python2.7/site-packages/ansible/plugins/callback/__init__.pyc

PLAYBOOK: playbook.yml ***********************************************************************************************************************
1 plays in playbook.yml

PLAY [Test Playbook] *************************************************************************************************************************
META: ran handlers

TASK [test-1 : Include some task file] *******************************************************************************************************
task path: /home/rteague/dev/clusters/aws-c2/reproducer/roles/test-1/tasks/main.yml:3
included: /home/rteague/dev/clusters/aws-c2/reproducer/roles/test-1/tasks/included_file.yml for localhost

TASK [test-1 : debug] ************************************************************************************************************************
task path: /home/rteague/dev/clusters/aws-c2/reproducer/roles/test-1/tasks/included_file.yml:2
ok: [localhost] => {
    "msg": "included file"
}
META: ran handlers
META: ran handlers

PLAY RECAP ***********************************************************************************************************************************
localhost                  : ok=2    changed=0    unreachable=0    failed=0   

This is a variation of the issue #26525 which was fixed in #26601.