Step 1 ( Ubuntu ) Installation :
apt-get update
apt-get install software-properties-common
apt-add-repository ppa:ansible/ansible
apt-get install ansible
Verify : ansible –version
Terminology :
Control Node ( enable devices with Ansible install on )
Management Node ( Hosts being manage by Ansible )
Inventory ( The inventory file define the devices and groups device upon which commands , modules and tasks in a playbook operate. The inventory can be dynamic or static. Can be a INI or YAML file.
Tasks ( actions performs within a playbook )
Playbook ( )
more info at https://docs.ansible.com