vars – Lookup templated value of variables

New in version 2.5.

Synopsis

• Retrieves the value of an Ansible variable.

Parameters

Parameter	Choices/Defaults	Configuration	Comments
_terms - / required			The variable names to look up.
default -			What to return if a variable is undefined. If no default is set, it will result in an error if any of the variables is undefined.

Examples

- name: Show value of 'variablename'
  debug: msg="{{ lookup('vars', 'variabl' + myvar)}}"
  vars:
    variablename: hello
    myvar: ename

- name: Show default empty since i dont have 'variablnotename'
  debug: msg="{{ lookup('vars', 'variabl' + myvar, default='')}}"
  vars:
    variablename: hello
    myvar: notename

- name: Produce an error since i dont have 'variablnotename'
  debug: msg="{{ lookup('vars', 'variabl' + myvar)}}"
  ignore_errors: True
  vars:
    variablename: hello
    myvar: notename

- name: find several related variables
  debug: msg="{{ lookup('vars', 'ansible_play_hosts', 'ansible_play_batch', 'ansible_play_hosts_all') }}"

- name: alternate way to find some 'prefixed vars' in loop
  debug: msg="{{ lookup('vars', 'ansible_play_' + item) }}"
  loop:
    - hosts
    - batch
    - hosts_all

Return Values

Common return values are documented here, the following are the fields unique to this lookup:

Key	Returned	Description
_value -		value of the variables requested.

Status

Authors

• Ansible Core

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