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1. Remove optional configuration content in the install guide, which is now located in the developer docs 2. Fixed appendix titles Change-Id: Ie3d7223d38dfda822b18bde123b68baa415418bc Implements: blueprint osa-install-guide-overhaul
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Home OpenStack-Ansible Installation Guide
Configuring the Aodh service (optional)
The Telemetry (ceilometer) alarming services perform the following functions:
- Creates an API endpoint for controlling alarms.
- Allows you to set alarms based on threshold evaluation for a collection of samples.
Configuring the hosts
Configure Aodh by specifying the metering-alarm_hosts
directive in the /etc/openstack_deploy/conf.d/aodh.yml
file. The following shows the example included in the
etc/openstack_deploy/conf.d/aodh.yml.example file:
# The infra nodes that the Aodh services run on. metering-alarm_hosts: infra1: ip: 172.20.236.111 infra2: ip: 172.20.236.112 infra3: ip: 172.20.236.113
The metering-alarm_hosts provides several services:
- An API server (
aodh-api): Runs on one or more central management servers to provide access to the alarm information in the data store.- An alarm evaluator (
aodh-evaluator): Runs on one or more central management servers to determine alarm fire due to the associated statistic trend crossing a threshold over a sliding time window.- A notification listener (
aodh-listener): Runs on a central management server and fire alarms based on defined rules against event captured by ceilometer's module's notification agents.- An alarm notifier (
aodh-notifier). Runs on one or more central management servers to allow the setting of alarms to base on the threshold evaluation for a collection of samples.
These services communicate by using the OpenStack messaging bus. Only the API server has access to the data store.
Run the os-aodh-install.yml playbook. If deploying a new
OpenStack (instead of only Aodh), run setup-openstack.yml.
The Aodh playbooks run as part of this playbook.