1c3e14665c
This adds heat-specific contents of the OpenStack Installation Guide in the aodh repo per [1]. A separate change will remove the aodh contents from the OpenStack Installation Guide for Newton per [2]. The aodh install-guide structure is based on Install Guide Cookiecutter [3]. Also adds tox.ini environment for install-guide. [1] http://specs.openstack.org/openstack/docs-specs/specs/newton/project-specific-installguides.html [2] http://specs.openstack.org/openstack/docs-specs/specs/newton/installguide.html [3] https://review.openstack.org/#/c/314229/ Partially-Implements: blueprint projectspecificinstallguides Change-Id: Ib72b57f9422564c49bf8f24f94f4b76f335e7495
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===================================
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Telemetry Alarming service overview
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===================================
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The Telemetry Alarming services trigger alarms when the collected metering
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or event data break the defined rules.
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The Telemetry Alarming service consists of the following components:
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An API server (``aodh-api``)
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Runs on one or more central management servers to provide access
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to the alarm information stored in the data store.
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An alarm evaluator (``aodh-evaluator``)
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Runs on one or more central management servers to determine when
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alarms fire due to the associated statistic trend crossing a
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threshold over a sliding time window.
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A notification listener (``aodh-listener``)
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Runs on a central management server and determines when to fire alarms.
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The alarms are generated based on defined rules against events, which are
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captured by the Telemetry Data Collection service's notification agents.
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An alarm notifier (``aodh-notifier``)
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Runs on one or more central management servers to allow alarms to be
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set based on the threshold evaluation for a collection of samples.
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These services communicate by using the OpenStack messaging bus.
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