Important! Ansible notes.
Add to ansible.cfg:
callback_whitelist = profile_tasks
to enable profiling and get timestamps on task execution.
20170720/https://github.com/jlafon/ansible-profile
Important! Ansible notes. Have that silly problem with host key checking causing connections to fail? Use this environment variable setup:
ANSIBLE_HOST_KEY_CHECKING=false
20170728/https://stackoverflow.com/questions/23492032/cant-disable-ansibles-host-key-checking#23494998
Do you want to specify a list or other complex variables in an inventory file? Use single quotes (‘’) to quote it.
20170729/https://stackoverflow.com/questions/18572092/how-specify-a-list-value-as-variable-in-ansible-inventory-file?rq=1
Important! Is it possible to write Ansible hosts/inventory files in YAML? Yes.
20170912/https://stackoverflow.com/questions/41094864/is-it-possible-to-write-ansible-hosts-inventory-files-in-yaml