Ansible error - implementation error: unknown type string requested for name

Question

I am getting the unknown type string error when I execute the ansible playbook

implementation error: unknown type string requested for name

I am trying to display my name using a ansible playbook. The bg code is python.

---
-  name:  Test hello module
   hosts:  localhost

   tasks:
     -  name:  run the hello module
        hello:
          name: 'Test'
        register:  helloout

     -  name:  dump test output
        debug:
          msg:  '{{ helloout  }}'

#!/usr/bin/python


def main():
        module = AnsibleModule(
                argument_spec=dict(
                        name=dict(required=True, type='string')
                ),
        supports_check_mode=False
        )
        name = module.params['name']
        module.exit.json(changed=False, meta=name)

from ansible.module_utils.basic import *
if __name__ == '__main__':
        main()

[WARNING]: provided hosts list is empty, only localhost is available. Note that the implicit localhost does not match 'all'

PLAY [Test hello module] ****************************************************************************************************************************

TASK [Gathering Facts] ****************************************************************************************************************************** ok: [localhost]

TASK [run the hello module] ************************************************************************************************************************* fatal: [localhost]: FAILED! => {"changed": false, "msg": "implementation error: unknown type string requested for name"}

PLAY RECAP ****************************************************************************************************************************************** localhost : ok=1 changed=0 unreachable=0 failed=1 skipped=0 rescued=0 ignored=0

Matt Schuchard Matt Schuchard · Accepted Answer · 2019-07-17T15:21:01

In the AnsibleModule() method argument argument_spec, the type you are looking for is actually str and not string:

module = AnsibleModule(
    argument_spec=dict(
        name=dict(required=True, type='str')
    ),
    supports_check_mode=False
)

You can see the list of accepted type specifications for the argument in the documentation.

Ansible error - implementation error: unknown type string requested for name

1 Answers