Check ansible.cfg location relatively to playbook file

[akamensky]

ISSUE TYPE

Not sure whether Bug Report or Feature Idea

COMPONENT NAME

?

ANSIBLE VERSION

ansible 2.1.1.0
  config file =
  configured module search path = Default w/o overrides

CONFIGURATION

None

OS / ENVIRONMENT

N/A

SUMMARY

Currently Ansible checks for location of ansible.cfg relatively to CWD, HOME or in /etc/[ansible/]ansible.cfg

Whereas lookup for templates and files used in playbook happens relatively to playbook file

STEPS TO REPRODUCE

1. Create some playbook
2. Place in same directory ansible.cfg with some settings (for example retry_files_enabled = False)
3. Run playbook from another location using ansible-playbook /path/to/playbook.yml
4. Verify whether ansible.cfg was used or not

EXPECTED RESULTS

ansible.cfg in location relative to playbook was used

ACTUAL RESULTS

ansible.cfg in location relative to playbook is not used. Used relatively to CWD instead (why?)

[bcoca]

dupe of #11175