debug - Print statements during execution

Synopsis

• This module prints statements during execution and can be useful for debugging variables or expressions without necessarily halting the playbook. Useful for debugging together with the ‘when:’ directive.
• This module is also supported for Windows targets.

Parameters

Parameter	Choices/Defaults	Comments
msg	Default: Hello world!	The customized message that is printed. If omitted, prints a generic message.
var		A variable name to debug. Mutually exclusive with the 'msg' option.
verbosity (added in 2.1)	Default: 0	A number that controls when the debug is run, if you set to 3 it will only run debug when -vvv or above

Notes

Note

• This module is also supported for Windows targets.

Examples

# Example that prints the loopback address and gateway for each host
- debug:
    msg: "System {{ inventory_hostname }} has uuid {{ ansible_product_uuid }}"

- debug:
    msg: "System {{ inventory_hostname }} has gateway {{ ansible_default_ipv4.gateway }}"
  when: ansible_default_ipv4.gateway is defined

- shell: /usr/bin/uptime
  register: result

- debug:
    var: result
    verbosity: 2

- name: Display all variables/facts known for a host
  debug:
    var: hostvars[inventory_hostname]
    verbosity: 4

Status

This module is flagged as stableinterface which means that the maintainers for this module guarantee that no backward incompatible interface changes will be made.

Maintenance

This module is flagged as core which means that it is maintained by the Ansible Core Team. See Module Maintenance & Support for more info.

For a list of other modules that are also maintained by the Ansible Core Team, see here.

Support

For more information about Red Hat’s support of this module, please refer to this Knowledge Base article

Author

• Dag Wieers (@dagwieers)
• Michael DeHaan

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