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.. -*- mode: rst -*-
.. _development-cfg:
=======================
Cfg Handler Development
=======================
The :ref:`server-plugins-generators-cfg` plugin offers multiple
handlers to handle different entries in different ways. Writing a new
Cfg handler is a relatively simple way to add significant new features
to Cfg.
Each new Cfg handler must be contained in its own module in
``Bcfg2.Server.Plugins.Cfg``, and the module and class name must be
identical. The name should start with ``Cfg``, and should clearly
indicate which of the handler types it is. A handler class may
implement more than one handler type.
Cfg Handler Types
=================
There are several different types of Cfg handlers. A new handler must
inherit either from one of these classes, or from an existing handler.
.. autoclass:: Bcfg2.Server.Plugins.Cfg.CfgGenerator
.. autoclass:: Bcfg2.Server.Plugins.Cfg.CfgCreator
.. autoclass:: Bcfg2.Server.Plugins.Cfg.CfgFilter
.. autoclass:: Bcfg2.Server.Plugins.Cfg.CfgInfo
.. autoclass:: Bcfg2.Server.Plugins.Cfg.CfgVerifier
Cfg Handler Base Class
======================
In addition to the interfaces defined above, all Cfg handlers inherit
from CfgBaseFileMatcher.
.. autoclass:: Bcfg2.Server.Plugins.Cfg.CfgBaseFileMatcher
Cfg Exceptions
==============
Cfg handlers may produce the following exceptions:
.. autoexception:: Bcfg2.Server.Plugins.Cfg.CfgVerificationError
.. autoexception:: Bcfg2.Server.Plugins.Cfg.CfgCreationError
In addition, Cfg handlers may produce the following base plugin
exceptions:
.. autoexception:: Bcfg2.Server.Plugin.exceptions.PluginExecutionError
:noindex:
.. autoexception:: Bcfg2.Server.Plugin.exceptions.PluginInitError
:noindex:
Global Variables
================
.. autodata:: Bcfg2.Server.Plugins.Cfg.SETUP
.. autodata:: Bcfg2.Server.Plugins.Cfg.CFG
Existing Cfg Handlers
=====================
Generators
----------
.. autoclass:: Bcfg2.Server.Plugins.Cfg.CfgPlaintextGenerator.CfgPlaintextGenerator
.. autoclass:: Bcfg2.Server.Plugins.Cfg.CfgGenshiGenerator.CfgGenshiGenerator
.. autoclass:: Bcfg2.Server.Plugins.Cfg.CfgCheetahGenerator.CfgCheetahGenerator
.. autoclass:: Bcfg2.Server.Plugins.Cfg.CfgEncryptedGenerator.CfgEncryptedGenerator
.. autoclass:: Bcfg2.Server.Plugins.Cfg.CfgEncryptedGenshiGenerator.CfgEncryptedGenshiGenerator
.. autoclass:: Bcfg2.Server.Plugins.Cfg.CfgEncryptedCheetahGenerator.CfgEncryptedCheetahGenerator
.. autoclass:: Bcfg2.Server.Plugins.Cfg.CfgAuthorizedKeysGenerator.CfgAuthorizedKeysGenerator
Creators
--------
.. autoclass:: Bcfg2.Server.Plugins.Cfg.CfgPrivateKeyCreator.CfgPrivateKeyCreator
.. autoclass:: Bcfg2.Server.Plugins.Cfg.CfgPublicKeyCreator.CfgPublicKeyCreator
Filters
-------
.. autoclass:: Bcfg2.Server.Plugins.Cfg.CfgCatFilter.CfgCatFilter
.. autoclass:: Bcfg2.Server.Plugins.Cfg.CfgDiffFilter.CfgDiffFilter
Info Handlers
-------------
.. autoclass:: Bcfg2.Server.Plugins.Cfg.CfgDefaultInfo
.. autoclass:: Bcfg2.Server.Plugins.Cfg.CfgInfoXML.CfgInfoXML
.. autoclass:: Bcfg2.Server.Plugins.Cfg.CfgLegacyInfo.CfgLegacyInfo
Verifiers
---------
.. autoclass:: Bcfg2.Server.Plugins.Cfg.CfgExternalCommandVerifier.CfgExternalCommandVerifier
Other Cfg Objects
=================
These other objects comprise the remainder of the Cfg plugin, and are
included for completeness.
.. autoattribute:: Bcfg2.Server.Plugins.Cfg.DEFAULT_INFO
.. autoclass:: Bcfg2.Server.Plugins.Cfg.CfgEntrySet
.. autoclass:: Bcfg2.Server.Plugins.Cfg.Cfg
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