View all Ansible Variables

Use this command:

$ ansible-inventory -I /path/to/inventory --yaml --graph --vars

To get the variables dumped out like this:

@all
  |--@group_1:
  |  |--host_a
  |  |  |--{variable_a = Value}
  |  |  |--{list_a = {u'alpha': 'alpha value', u'beta': 'beta value'}}
  |  |  |--{host_a_variable = Special for host_a}
  |  |--host_b
  |  |  |--{variable_a = Value}
  |  |  |--{host_b_variable = Special for host_b}