ansible/docs/docsite/rst/plugins/cache.rst
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.. contents:: Topics
Cache Plugins
-------------
Cache plugin implement a backend caching mechanism that allows Ansible to store gathered facts or inventory source data
without the performance hit of retrieving them from source.
The default cache plugin is the :doc:`memory <cache/memory>` plugin, which only caches the data for the current execution of Ansible. Other plugins with persistent storage are available to allow caching the data across runs.
.. _enabling_cache:
Enabling Cache Plugins
++++++++++++++++++++++
Only one cache plugin can be active at a time.
You can enable a cache plugin in the Ansible configuration, either via environment variable:
.. code-block:: shell
export ANSIBLE_CACHE_PLUGIN=jsonfile
or in the ``ansible.cfg`` file:
.. code-block:: ini
[defaults]
fact_caching=redis
You will also need to configure other settings specific to each plugin. Consult the individual plugin documentation
or the Ansible :ref:`configuration <ansible_configuration_settings>` for more details.
A custom cache plugin is enabled by dropping it into a ``cache_plugins`` directory adjacent to your play, inside a role, or by putting it in one of the directory sources configured in :ref:`ansible.cfg <ansible_configuration_settings>`.
.. _using_cache:
Using Cache Plugins
+++++++++++++++++++
Cache plugins are used automatically once they are enabled.
.. _cache_plugin_list:
Plugin List
+++++++++++
You can use ``ansible-doc -t cache -l`` to see the list of available plugins.
Use ``ansible-doc -t cache <plugin name>`` to see specific documentation and examples.
.. toctree:: :maxdepth: 1
:glob:
cache/*
.. seealso::
:doc:`action`
Ansible Action plugins
:doc:`callback`
Ansible callback plugins
:doc:`connection`
Ansible connection plugins
:doc:`inventory`
Ansible inventory plugins
:doc:`shell`
Ansible Shell plugins
:doc:`strategy`
Ansible Strategy plugins
:doc:`vars`
Ansible Vars plugins
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