confgend: add driver implementation details

parent 6d1d3fd1
......@@ -19,6 +19,7 @@ System
xivo-auth <xivo-auth/xivo-auth>
xivo-confd <xivo-confd/xivo-confd>
xivo-confgend <xivo-confgend/xivo-confgend>
xivo-dird <xivo-dird/xivo-dird>
xivo-dird-phoned <xivo-dird-phoned>
xivo-purge-db <purge_logs>
.. _xivo-confgend-developer:
XiVO confgend developer's guide
xivo-confgend uses drivers to implement the logic required to generate
configuration files. It uses `stevedore <>`_
to do the driver instantiation and discovery.
Plugins in xivo-confgend use setuptools' entry points. That means that
installing a new plugin to xivo-confgend requires an entry point in the plugin's
Driver plugin are classes that are used to generate the content of a
configuration file.
The implementation of a plugin should have the following properties.
#. It's *__init__* method should take one argument
#. It should have a *generate* method which will return the content of the file
#. A adding an entry point
The *__init__* method argument is the content of the configuration of
xivo-confgend. This allows the driver implementor to add values to the
configuration in */etc/xivo-confgend/conf.d/*.yml* and these values will be
available in the driver.
The generate method has no argument, the configuration provided to the
*__init__* should sufficent for most cases. The call to generate is within a
*scoped_session* of xivo-dao, allowing the usage of xivo-dao without prior setup
in the driver.
The namespaces used for entry points in xivo-confgend have the following form:
as an example, a generator for sip.conf would have the following namespace:
Here is a typical
.. code-block:: python
#!/usr/bin/env python
# -*- coding: utf-8 -*-
from setuptools import setup
from setuptools import find_packages
name='XiVO confgend driversample',
description='An example driver',
'confgend.asterisk.sip.conf': [
'my_driver = src.driver:MyDriver',
.. _xivo-confgend:
XiVO confgend
xivo-confgend is a configuration file generator. It is mainly used to generate
the Asterisk configuration files.
.. toctree::
:maxdepth: 1
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