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ansible.builtin.fail module – Fail with custom message

Note

This module is part of ansible-core and included in all Ansible installations. In most cases, you can use the short module name fail even without specifying the collections keyword. However, we recommend you use the Fully Qualified Collection Name (FQCN) ansible.builtin.fail for easy linking to the module documentation and to avoid conflicting with other collections that may have the same module name.

Synopsis

  • This module fails the progress with a custom message.
  • It can be useful for bailing out when a certain condition is met using when.
  • This module is also supported for Windows targets.

Note

This module has a corresponding action plugin.

Parameters

Parameter

Comments

msg

string

The customized message used for failing execution.

If omitted, fail will simply bail out with a generic message.

Default: "Failed as requested from task"

Attributes

Attribute

Support

Description

action

Support: full

Indicates this has a corresponding action plugin so some parts of the options can be executed on the controller

async

Support: none

Supports being used with the async keyword

become

Support: none

Is usable alongside become keywords

bypass_host_loop

Support: none

Forces a ‘global’ task that does not execute per host, this bypasses per host templating and serial, throttle and other loop considerations

Conditionals will work as if run_once is being used, variables used will be from the first available host

This action will not work normally outside of lockstep strategies

check_mode

Support: full

Can run in check_mode and return changed status prediction without modifying target, if not supported the action will be skipped.

connection

Support: none

Uses the target’s configured connection information to execute code on it

delegation

Support: partial

Aside from register and/or in combination with delegate_facts, it has little effect.

Can be used in conjunction with delegate_to and related keywords

diff_mode

Support: none

Will return details on what has changed (or possibly needs changing in check_mode), when in diff mode

platform

Platforms: all

Target OS/families that can be operated against

See Also

See also

ansible.builtin.assert

Asserts given expressions are true.

ansible.builtin.debug

Print statements during execution.

ansible.builtin.meta

Execute Ansible ‘actions’.

Examples

- name: Example using fail and when together
  ansible.builtin.fail:
    msg: The system may not be provisioned according to the CMDB status.
  when: cmdb_status != "to-be-staged"

Authors

  • Dag Wieers (@dagwieers)

© 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/fail_module.html