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.. -*- mode: rst -*-
.. _unsorted-development_writing_plugins:
===============
Writing Plugins
===============
Server Plugin Types
===================
Generator
---------
Generator plugins contribute to literal client configurations
Structure
---------
Structure Plugins contribute to abstract client configurations
Metadata
--------
Signal metadata capabilities
Connector
---------
Connector Plugins augment client metadata instances
Probing
-------
Signal probe capability
Statistics
----------
Signal statistics handling capability
Decision
--------
Signal decision handling capability
Version
-------
Interact with various version control systems
Writing Server Plugins
======================
Metadata
--------
If you would like to define your own Metadata plugin (to extend/change functionality of the existing Metadata plugin), here are the steps to do so. We will call our new plugin `MyMetadata`.
#. Add MyMetadata.py
.. code-block:: python
__revision__ = '$Revision$'
import Bcfg2.Server.Plugins.Metadata
class MyMetadata(Bcfg2.Server.Plugins.Metadata.Metadata):
'''This class contains data for bcfg2 server metadata'''
__version__ = '$Id$'
__author__ = 'bcfg-dev@mcs.anl.gov'
def __init__(self, core, datastore, watch_clients=True):
Bcfg2.Server.Plugins.Metadata.Metadata.__init__(self, core, datastore, watch_clients)
#. Add MyMetadata to `src/lib/Server/Plugins/__init__.py`
#. Replace Metadata with MyMetadata in the plugins line of bcfg2.conf
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