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Updats the existing documentation and also adds more documentation to the Multi-Master and Syndic topology files about the addition of the pluggable minion data store.
60 lines
1.8 KiB
ReStructuredText
60 lines
1.8 KiB
ReStructuredText
.. _cache:
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=================
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Minion Data Cache
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=================
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.. versionadded:: 2016.11.0
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The Minion data cache contains the Salt Mine data, minion grains and minion
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pillar information cached on the Salt Master. By default, Salt uses the ``localfs`` cache
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module to save the data in a ``msgpack`` file on the Salt Master.
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.. _pluggable-data-cache:
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Pluggable Data Cache
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====================
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While the default Minion data cache is the ``localfs`` cache, other external
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data stores can also be used to store this data such as the ``consul`` module.
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To configure a Salt Master to use a different data store, the :conf_master:`cache`
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setting needs to be established:
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.. code-block:: yaml
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cache: consul
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The pluggable data cache streamlines using various Salt topologies such as a
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:ref:`Multi-Master <tutorial-multi-master>` or :ref:`Salt Syndics <syndic>` configuration
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by allowing the data stored on the Salt Master about a Salt Minion to be available to
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other Salt Syndics or Salt Masters that a Salt Minion is connected to.
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Additional minion data cache modules can be easily created by modeling the custom data
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store after one of the existing cache modules.
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See :ref:`cache modules <all-salt.cache>` for a current list.
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.. _configure-minion-data-cache:
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Configuring the Minion Data Cache
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=================================
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The default ``localfs`` Minion data cache module doesn't require any
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configuration. External data cache modules with external data stores such as
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Consul require a configuration setting in the master config.
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Here's an example config for Consul:
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.. code-block:: yaml
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consul.host: 127.0.0.1
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consul.port: 8500
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consul.token: None
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consul.scheme: http
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consul.consistency: default
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consul.dc: dc1
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consul.verify: True
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cache: consul
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