ansible/docs/docsite/rst/plugins/callback.rst
Toshio Kuratomi 80e7e1a17c
Due to the takeover of freenode we're moving to a different irc network. (#74775)
* Due to the takeover of freenode we're moving to a different irc network.

* Our channels updated to point at the same channel name on libera.chat
* Some links went to webchat.freenode.net.  At this time, libera.chat
  doesn't point you to an official webchat client so I changed these to
  https://libera.chat. (kiwi irc does work with libera.chat so that
  could be another option).
* In general, I used the name irc.libera.net for link names and
  https://libera.chat for link targets.  This is because the irc service
  is hosted on irc.libera.chat but the project web server is hosted on
  libera.chat.  (This appears to also be true for freenode but we were
  using http://irc.freenode.net which doesn't seem to work.  Oops).
* Removed http://irc.freenode.net from the linkcheck exceptions.
  linkcheck was actually correct to flag that as invalid (should have
  been http://frenode.net instead).

* Looks like hte important people in #yaml are now in libera.chat

* Link to where contributors should get help

Add a link target and then link to where contributors should get support
for developing groups of modules.

* Update docs/docsite/rst/dev_guide/developing_modules_in_groups.rst

Co-authored-by: Felix Fontein <felix@fontein.de>

Co-authored-by: John R Barker <john@johnrbarker.com>
Co-authored-by: Felix Fontein <felix@fontein.de>
2021-06-01 08:48:09 +01:00

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.. _callback_plugins:
Callback Plugins
================
.. contents::
:local:
:depth: 2
Callback plugins enable adding new behaviors to Ansible when responding to events.
By default, callback plugins control most of the output you see when running the command line programs,
but can also be used to add additional output, integrate with other tools and marshall the events to a storage backend.
.. _callback_examples:
Example callback plugins
------------------------
The :ref:`log_plays <log_plays_callback>` callback is an example of how to record playbook events to a log file,
and the :ref:`mail <mail_callback>` callback sends email on playbook failures.
The :ref:`say <say_callback>` callback responds with computer synthesized speech in relation to playbook events.
.. _enabling_callbacks:
Enabling callback plugins
-------------------------
You can activate a custom callback by either dropping it into a ``callback_plugins`` directory adjacent to your play, inside a role, or by putting it in one of the callback directory sources configured in :ref:`ansible.cfg <ansible_configuration_settings>`.
Plugins are loaded in alphanumeric order. For example, a plugin implemented in a file named `1_first.py` would run before a plugin file named `2_second.py`.
Most callbacks shipped with Ansible are disabled by default and need to be enabled in your :ref:`ansible.cfg <ansible_configuration_settings>` file in order to function. For example:
.. code-block:: ini
#callbacks_enabled = timer, mail, profile_roles, collection_namespace.collection_name.custom_callback
Setting a callback plugin for ``ansible-playbook``
--------------------------------------------------
You can only have one plugin be the main manager of your console output. If you want to replace the default, you should define CALLBACK_TYPE = stdout in the subclass and then configure the stdout plugin in :ref:`ansible.cfg <ansible_configuration_settings>`. For example:
.. code-block:: ini
stdout_callback = dense
or for my custom callback:
.. code-block:: ini
stdout_callback = mycallback
This only affects :ref:`ansible-playbook` by default.
Setting a callback plugin for ad hoc commands
---------------------------------------------
The :ref:`ansible` ad hoc command specifically uses a different callback plugin for stdout,
so there is an extra setting in :ref:`ansible_configuration_settings` you need to add to use the stdout callback defined above:
.. code-block:: ini
[defaults]
bin_ansible_callbacks=True
You can also set this as an environment variable:
.. code-block:: shell
export ANSIBLE_LOAD_CALLBACK_PLUGINS=1
.. _callback_plugin_list:
Plugin list
-----------
You can use ``ansible-doc -t callback -l`` to see the list of available plugins.
Use ``ansible-doc -t callback <plugin name>`` to see specific documents and examples.
.. seealso::
:ref:`action_plugins`
Ansible Action plugins
:ref:`cache_plugins`
Ansible cache plugins
:ref:`connection_plugins`
Ansible connection plugins
:ref:`inventory_plugins`
Ansible inventory plugins
:ref:`shell_plugins`
Ansible Shell plugins
:ref:`strategy_plugins`
Ansible Strategy plugins
:ref:`vars_plugins`
Ansible Vars plugins
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