openstack/watcher
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Improve DevStack documentation to support metrics

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Support DevStack setups with datasources configured starting with
Gnocchi.

Change-Id: Ibcf0909ccce2dbb646c23a179ca763b6c3e62633
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Dantali0n 2019-05-21 13:27:43 +02:00
parent f731aa1748
commit 5a35b30763
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doc/source/contributor/devstack.rst
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@ -27,6 +27,36 @@ out the `DevStack documentation`_ for more information regarding DevStack.
.. _PluginModelDocs: https://docs.openstack.org/devstack/latest/plugins.html
.. _DevStack documentation: https://docs.openstack.org/devstack/latest
Quick Devstack Instructions with Datasources
============================================
Watcher requires a datasource to collect metrics from compute nodes and
instances in order to execute most strategies. To enable this a
`[[local|localrc]]` to setup DevStack for some of the supported datasources
is provided. These examples specify the minimal configuration parameters to
get both Watcher and the datasource working but can be expanded is desired.
Gnocchi
-------
With the Gnocchi datasource most of the metrics for compute nodes and
instances will work with the provided configuration but metrics that
require Ironic such as `host_airflow and` `host_power` will still be
unavailable as well as `instance_l3_cpu_cache`::
[[local|localrc]]
enable_plugin watcher https://opendev.org/openstack/watcher
enable_plugin ceilometer https://opendev.org/openstack/ceilometer.git
CEILOMETER_BACKEND=gnocchi
enable_plugin aodh https://opendev.org/openstack/aodh
enable_plugin panko https://opendev.org/openstack/panko
[[post-config|$NOVA_CONF]]
[DEFAULT]
compute_monitors=cpu.virt_driver
Detailed DevStack Instructions
==============================