ansible.builtin.contains test – does the list contain this element

Note

This test plugin is part of ansible-core and included in all Ansible installations. In most cases, you can use the short plugin name contains. However, we recommend you use the Fully Qualified Collection Name (FQCN) ansible.builtin.contains for easy linking to the plugin documentation and to avoid conflicting with other collections that may have the same test plugin name.

Synopsis

  • Checks the supplied element against the input list to see if it exists within it.

Input

This describes the input of the test, the value before is ansible.builtin.contains or is not ansible.builtin.contains.

Parameter

Comments

Input

list / elements=any / required

List of elements to compare.

Keyword parameters

This describes keyword parameters of the test. These are the values key1=value1, key2=value2 and so on in the following examples: input is ansible.builtin.contains(key1=value1, key2=value2, ...) and input is not ansible.builtin.contains(key1=value1, key2=value2, ...)

Parameter

Comments

_contained

any / required

Element to test for.

Examples

# simple expression
{{ listofthings is contains('this') }}

# as a selector
- action: module=doessomething
  when: (lacp_groups|selectattr('interfaces', 'contains', 'em1')|first).master
  vars:
    lacp_groups:
      - master: lacp0
        network: 10.65.100.0/24
        gateway: 10.65.100.1
        dns4:
          - 10.65.100.10
          - 10.65.100.11
        interfaces:
          - em1
          - em2

      - master: lacp1
        network: 10.65.120.0/24
        gateway: 10.65.120.1
        dns4:
          - 10.65.100.10
          - 10.65.100.11
        interfaces:
            - em3
            - em4

Return Value

Key

Description

Return value

boolean

Returns True if the specified element is contained in the supplied sequence, False otherwise.

Returned: success

Authors

  • Ansible Core

© 2012–2018 Michael DeHaan
© 2018–2025 Red Hat, Inc.
Licensed under the GNU General Public License version 3.
https://docs.ansible.com/ansible/latest/collections/ansible/builtin/contains_test.html