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Written by Oleksandr Gavenko (AKA gavenkoa), compiled on 2020-02-13 from rev d88d5d1a8cd9+.

Ansible

Debugging Ansible

Pass -vvv to Ansible utilities:

ansible -vvv ...
ansible-playbook -vvv ...

To debug connection use -vvvv:

ansible -vvvv ...

To debug Python modules set ANSIBLE_KEEP_REMOTE_FILES to 1 (it causes Ansible to leave the exact copy of the Python scripts it executed on the target machine):

ANSIBLE_KEEP_REMOTE_FILES=1  ansible ...

There is debugger keyword that triggers debugger, see Ansible Debugger

To activate debugger on task:

- name: Execute a command
  command: false
  debugger: on_failed

To activate debugger in ansible.cfg:

[defaults]
enable_task_debugger = True

To activate debugger via env var:

ANSIBLE_ENABLE_TASK_DEBUGGER=True ansible-playbook -i hosts site.yml

Use ansible-lint:

$ sudo apt install ansible-lint
$ ansible-lint site.yml
https://docs.ansible.com/ansible/latest/network/user_guide/network_debug_troubleshooting.html
Network Debug and Troubleshooting Guide.
https://stackoverflow.com/questions/42417079/how-to-debug-ansible-issues
How to debug Ansible issues?

Bash completion

https://github.com/ansible/ansible/issues/36397
Provide bash-completion script for ansible commands.
https://docs.ansible.com/ansible/devel/installation_guide/intro_installation.html#shell-completion
As of Ansible 2.9 shell completion of the ansible command line utilities is available and provided through an optional dependency called argcomplete.