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# group_by – Create Ansible groups based on facts

- Synopsis
- Parameters
- Notes
- See Also
- Examples
- Status

## Synopsis

- Use facts to create ad-hoc groups that can be used later in a playbook.
- This module is also supported for Windows targets.

## Parameters

Parameter | Choices/Defaults | Comments
--- | --- | ---
key string / required |  | The variables whose values will be used as groups.
parents list added in 2.4 | Default: "all" | The list of the parent groups.

## Notes

Note

- Spaces in group names are converted to dashes ‘-‘.
- This module is also supported for Windows targets.

## See Also

See also

add_host – Add a host (and alternatively a group) to the ansible-playbook in-memory inventory
  The official documentation on the add_host module.

## Examples

    # Create groups based on the machine architecture
    - group_by:
        key: machine_{{ ansible_machine }}

    # Create groups like 'virt_kvm_host'
    - group_by:
        key: virt_{{ ansible_virtualization_type }}_{{ ansible_virtualization_role }}

    # Create nested groups
    - group_by:
        key: el{{ ansible_distribution_major_version }}-{{ ansible_architecture }}
        parents:
          - el{{ ansible_distribution_major_version }}

## Status

- This module is guaranteed to have backward compatible interface changes going forward. [stableinterface]
- This module is maintained by the Ansible Core Team. [core]

### Red Hat Support

More information about Red Hat’s support of this module is available from this Red Hat Knowledge Base article.

### Authors

- Jeroen Hoekx (@jhoekx)

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