b7d3821c7d
Update nova-notifier,mistral-notifier to Syntax 3 to replace Syntax 2 Change-Id: I74e51ca8ea8913a22cea3b0d6bec2afc80002c98
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1.1 KiB
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44 lines
1.1 KiB
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=====================
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Vitrage Nova Notifier
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=====================
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Overview
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--------
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The main purpose of Vitrage is to provide insights about the state of the
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system on problems that are not directly monitored. An example of such
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a problem is a switch failure that causes a Nova host to become unreachable,
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while Nova is not aware of this problem.
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The Nova notifier tries to solve this use case, by calling Nova force-down API
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to notify Nova that the host is down.
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Configuration
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-------------
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In order to support this use case, the user should perform the following:
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1. Activate the nova notifier. In /etc/vitrage/vitrage.conf:
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.. code:: yaml
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[DEFAULT]
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notifiers = nova
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2. Determine, in the Vitrage templates, what condition(s) indicates that the
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host is down. For example:
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.. code:: yaml
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scenarios:
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- condition: host_down_alarm [on] host
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actions:
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- mark_down:
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target: host
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For more information about the mark-down action, see the Vitrage templates
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documentation: templates_
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.. _templates: https://docs.openstack.org/vitrage/latest/contributor/vitrage-templates.html
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