mirror of
https://github.com/ansible-collections/community.general.git
synced 2024-09-14 20:13:21 +02:00
130 lines
3.7 KiB
ReStructuredText
130 lines
3.7 KiB
ReStructuredText
.. 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.
|
|
|
|
You can use a separate cache plugin for inventory and facts. If an inventory-specific cache plugin is not provided and inventory caching is enabled, the fact cache plugin is used for inventory.
|
|
|
|
.. _enabling_cache:
|
|
|
|
Enabling Fact Cache Plugins
|
|
---------------------------
|
|
|
|
Only one fact 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>`.
|
|
|
|
|
|
Enabling Inventory Cache Plugins
|
|
--------------------------------
|
|
|
|
Inventory may be cached using a file-based cache plugin (like jsonfile). Check the specific inventory plugin to see if it supports caching.
|
|
If an inventory-specific cache plugin is not specified Ansible will fall back to caching inventory with the fact cache plugin options.
|
|
|
|
The inventory cache is disabled by default. You may enable it via environment variable:
|
|
|
|
.. code-block:: shell
|
|
|
|
export ANSIBLE_INVENTORY_CACHE=True
|
|
|
|
or in the ``ansible.cfg`` file:
|
|
|
|
.. code-block:: ini
|
|
|
|
[inventory]
|
|
cache=True
|
|
|
|
or if the inventory plugin accepts a YAML configuration source, in the configuration file:
|
|
|
|
.. code-block:: yaml
|
|
|
|
# dev.aws_ec2.yaml
|
|
plugin: aws_ec2
|
|
cache: True
|
|
|
|
Similarly with fact cache plugins, only one inventory cache plugin can be active at a time and may be set via environment variable:
|
|
|
|
.. code-block:: shell
|
|
|
|
export ANSIBLE_INVENTORY_CACHE_PLUGIN=jsonfile
|
|
|
|
or in the ansible.cfg file:
|
|
|
|
.. code-block:: ini
|
|
|
|
[inventory]
|
|
cache_plugin=jsonfile
|
|
|
|
or if the inventory plugin accepts a YAML configuration source, in the configuration file:
|
|
|
|
.. code-block:: yaml
|
|
|
|
# dev.aws_ec2.yaml
|
|
plugin: aws_ec2
|
|
cache_plugin: jsonfile
|
|
|
|
Consult the individual inventory plugin documentation or the Ansible :ref:`configuration <ansible_configuration_settings>` for more details.
|
|
|
|
.. _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
|
|
`User Mailing List <https://groups.google.com/forum/#!forum/ansible-devel>`_
|
|
Have a question? Stop by the google group!
|
|
`webchat.freenode.net <https://webchat.freenode.net>`_
|
|
#ansible IRC chat channel
|