Ganglia Python Modules for Nova
-------------------------------

These plugins are for use with the Ganglia monitoring system. For more details:

  http://ganglia.sourceforge.net/

They allow various components of Nova to be monitored using simple python
modules.

You will need to enable ganglia's modpython.  On Ubuntu, this is easy:

  mkdir /etc/ganglia/conf.d
  cp conf.d/modpython.conf /etc/ganglia/conf.d
  service ganglia-monitoring restart

On most systems, these can easily be configured by copying the desired
components from conf.d and python_modules to the same location in /etc/ganglia.

For instance, to install compute-metrics:

  mkdir /etc/ganglia/conf.d
  mkdir /etc/ganglia/python_modules
  cp conf.d/compute-metrics.pyconf /etc/ganglia/conf.d
  cp python_modules/compute-metrics.py /etc/ganglia/python_modules
  service ganglia-monitoring restart

To use custom graphics, copy graph.d contents in your system-specific
graph.d directory:

on Ubuntu:

  cp graph.d/nova_services_report.php /usr/share/ganglia-webfrontend/graph.d/

on RHEL 6.1:

 cp graph.d/nova_services_report.php /usr/share/ganglia/graph.d/

and enable it in conf.php:

 $optional_graphs = array('nova_services');