How do you write an ansible callback plugin to only show messages from something i explicitly write out like through debug?

[Anders Swenson]

I've made a few attempts but nothing gets rid of all the extra stuff printed to stdout.

I would like only things i explicitly try to print out like through debug to show. 

Here is a simple example: hw.yaml:

===================================

---

- name: run the playbook tasks on the localhost

  hosts: 127.0.0.1

  connection: local

  tasks:

  - name: Hello World

    debug:

      msg: "Hello World!"

===================================

The above prints the following to stdout

===================================

PLAY [run the playbook tasks on the localhost] *********************************

TASK [Gathering Facts] *********************************************************

ok: [127.0.0.1]

TASK [Hello World] *************************************************************

ok: [127.0.0.1] => {

    "msg": "Hello World!"

}

PLAY RECAP *********************************************************************

127.0.0.1                  : ok=2    changed=0    unreachable=0    failed=0

===================================

What i want to see

===================================

ok: [127.0.0.1] => {

    "msg": "Hello World!"

}

===================================

OR just

"msg": "Hello World!"

What i tried:

===================================

from __future__ import (absolute_import, division, print_function)

__metaclass__ = type

from ansible.plugins.callback.default import CallbackModule as CallbackModule_default

class CallbackModule(CallbackModule_default):

    '''

    This is the default callback interface, which simply prints messages

    to stdout when new callback events are received.

    '''

    CALLBACK_VERSION = 2.0

    CALLBACK_TYPE = 'stdout'

    CALLBACK_NAME = 'quite'

    def __init__(self):

        super(CallbackModule, self).__init__()

    def v2_playbook_on_start(self, playbook):

        pass

    def v2_playbook_on_notify(self, handler, host):

        pass

    def v2_playbook_on_no_hosts_matched(self):

        pass

    def v2_playbook_on_no_hosts_remaining(self):

        pass

    def v2_playbook_on_task_start(self, task, is_conditional):

        pass

    def v2_playbook_on_cleanup_task_start(self, task):

        pass

    def v2_playbook_on_handler_task_start(self, task):

        pass

    def v2_playbook_on_vars_prompt(self, varname, private=True, prompt=None, encrypt=None, confirm=False, salt_size=None, salt=None, default=None, unsafe=None):

        pass

    def v2_playbook_on_import_for_host(self, result, imported_file):

        pass

    def v2_playbook_on_not_import_for_host(self, result, missing_file):

        pass

    def v2_playbook_on_stats(self, stats):

        pass

    def v2_playbook_on_include(self, included_file):

        pass

#    def v2_playbook_on_play_start(self, play):

#        pass

===================================

Now this is what i see:

===================================

PLAY [run the playbook tasks on the localhost] *********************************

ok: [127.0.0.1]

ok: [127.0.0.1] => {

    "msg": "Hello World!"

}

===================================

So i almost got it but then when i un-comment out those lines at the bottom i get errors. I'm not sure how to get rid of the PLAY text or the first ok text.

Also if i try something more advanced i see it will print out more stuff

(this script basically takes two params one for how many loops and one for how long to wait before looping:

===================================

PLAY [all] *********************************************************************

ok: [10.40.11.240]

ok: [10.40.11.240] => {

    "msg": "variable foo is 2 and len is 1"

}

PLAY [all] *********************************************************************

ok: [10.40.11.240]

ok: [10.40.11.240] => {

    "msg": "Starting loop number 1"

}

Pausing for 1 seconds

(ctrl+C then 'C' = continue early, ctrl+C then 'A' = abort)

ok: [10.40.11.240]

ok: [10.40.11.240] => {

    "msg": "Starting loop number 2"

}

Pausing for 1 seconds

(ctrl+C then 'C' = continue early, ctrl+C then 'A' = abort)

ok: [10.40.11.240]

===================================

As you can see i get a bunch of extra data i don't want still. The only things i wanted to see where the msgs...

Thanks!