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.. This work is licensed under a Creative Commons Attribution 4.0 International License.
.. http://creativecommons.org/licenses/by/4.0
=============================
Barometer Configuration Guide
=============================
This document provides guidelines on how to install and configure Barometer with Apex.
The deployment script installs and enables a series of collectd plugins on the compute node(s),
which collect and dispatch specific metrics and events from the platform.
Pre-configuration activities
----------------------------
Deploying the Barometer components in Apex is done through the deploy-opnfv command by selecting
a scenario-file which contains the ``barometer: true`` option. These files are located on the
Jump Host in the ``/etc/opnfv-apex/ folder``. Two scenarios are pre-defined to include Barometer,
and they are: ``os-nosdn-bar-ha.yaml`` and ``os-nosdn-bar-noha.yaml``.
.. code:: bash
$ cd /etc/opnfv-apex
$ opnfv-deploy -d os-nosdn-bar-ha.yaml -n network_settings.yaml -i inventory.yaml –- debug
Hardware configuration
----------------------
There's no specific Hardware configuration required. However, the ``intel_rdt`` plugin works
only on platforms with Intel CPUs.
Feature configuration
---------------------
All Barometer plugins are automatically deployed on all compute nodes. There is no option to
selectively install only a subset of plugins. Any custom disabling or configuration must be done
directly on the compute node(s) after the deployment is completed.
Upgrading the plugins
---------------------
The Barometer components are built-in in the Apex ISO image, and respectively the Apex RPMs. There
is no simple way to update only the Barometer plugins in an existing deployment.
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