openstack-manuals/doc/install-guide/source/ceilometer-aodh.rst
Takashi Kajinami 1d4c311cd9 [install-guide] Aodh should use mysql as its backend
In install manual, now we set mongodb as Aodh's backend in
its configration file, while we set up its database in mysql.
Aodh's support for mongodb as its backend seems to be deprecated,
so we should use mysql instead.

Change-Id: I2aa918ed9ac68ac309dcf6401dfa802723ecd172
2016-04-16 11:47:14 +09:00

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.. _aodh-install:
================
Alarming service
================
This section describes how to install and configure the Telemetry Alarming
service, code-named aodh.
Prerequisites
~~~~~~~~~~~~~
Before you install and configure the Alarming service, you must create a
database, service credentials, and API endpoints.
#. To create the database, complete these steps:
* Use the database access client to connect to
the database server as the ``root`` user:
.. code-block:: console
$ mysql -u root -p
* Create the ``aodh`` database:
.. code-block:: console
CREATE DATABASE aodh;
* Grant proper access to the ``aodh`` database:
.. code-block:: console
GRANT ALL PRIVILEGES ON aodh.* TO 'aodh'@'localhost' \
IDENTIFIED BY 'AODH_DBPASS';
GRANT ALL PRIVILEGES ON aodh.* TO 'aodh'@'%' \
IDENTIFIED BY 'AODH_DBPASS';
Replace ``AODH_DBPASS`` with a suitable password.
* Exit the database access client.
#. Source the ``admin`` credentials to gain access to admin-only
CLI commands:
.. code-block:: console
$ . admin-openrc
#. To create the service credentials, complete these steps:
* Create the ``aodh`` user:
.. code-block:: console
$ openstack user create --domain default \
--password-prompt aodh
User Password:
Repeat User Password:
+-----------+----------------------------------+
| Field | Value |
+-----------+----------------------------------+
| domain_id | e0353a670a9e496da891347c589539e9 |
| enabled | True |
| id | b7657c9ea07a4556aef5d34cf70713a3 |
| name | aodh |
+-----------+----------------------------------+
* Add the ``admin`` role to the ``aodh`` user:
.. code-block:: console
$ openstack role add --project service --user aodh admin
.. note::
This command provides no output.
* Create the ``aodh`` service entity:
.. code-block:: console
$ openstack service create --name aodh \
--description "Telemetry" alarming
+-------------+----------------------------------+
| Field | Value |
+-------------+----------------------------------+
| description | Telemetry |
| enabled | True |
| id | 3405453b14da441ebb258edfeba96d83 |
| name | aodh |
| type | alarming |
+-------------+----------------------------------+
#. Create the Alarming service API endpoints:
.. code-block:: console
$ openstack endpoint create --region RegionOne \
alarming public http://controller:8042
+--------------+----------------------------------+
| Field | Value |
+--------------+----------------------------------+
| enabled | True |
| id | 340be3625e9b4239a6415d034e98aace |
| interface | public |
| region | RegionOne |
| region_id | RegionOne |
| service_id | 8c2c7f1b9b5049ea9e63757b5533e6d2 |
| service_name | aodh |
| service_type | alarming |
| url | http://controller:8042 |
+--------------+----------------------------------+
$ openstack endpoint create --region RegionOne \
alarming internal http://controller:8042
+--------------+----------------------------------+
| Field | Value |
+--------------+----------------------------------+
| enabled | True |
| id | 340be3625e9b4239a6415d034e98aace |
| interface | internal |
| region | RegionOne |
| region_id | RegionOne |
| service_id | 8c2c7f1b9b5049ea9e63757b5533e6d2 |
| service_name | aodh |
| service_type | alarming |
| url | http://controller:8042 |
+--------------+----------------------------------+
$ openstack endpoint create --region RegionOne \
alarming admin http://controller:8042
+--------------+----------------------------------+
| Field | Value |
+--------------+----------------------------------+
| enabled | True |
| id | 340be3625e9b4239a6415d034e98aace |
| interface | admin |
| region | RegionOne |
| region_id | RegionOne |
| service_id | 8c2c7f1b9b5049ea9e63757b5533e6d2 |
| service_name | aodh |
| service_type | alarming |
| url | http://controller:8042 |
+--------------+----------------------------------+
Install and configure components
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. note::
Default configuration files vary by distribution. You might need to add
these sections and options rather than modifying existing sections and
options. Also, an ellipsis (...) in the configuration snippets indicates
potential default configuration options that you should retain.
.. only:: obs
1. Install the packages:
.. code-block:: console
# zypper install openstack-aodh-api \
openstack-aodh-evaluator openstack-aodh-notifier \
openstack-aodh-listener openstack-aodh-expirer \
python-aodhclient
.. only:: rdo
1. Install the packages:
.. code-block:: console
# yum install openstack-aodh-api \
openstack-aodh-evaluator openstack-aodh-notifier \
openstack-aodh-listener openstack-aodh-expirer \
python-ceilometerclient
.. only:: ubuntu
1. Install the packages:
.. code-block:: console
# apt-get install aodh-api aodh-evaluator aodh-notifier \
aodh-listener aodh-expirer python-ceilometerclient
2. Edit the ``/etc/aodh/aodh.conf`` file and complete the following actions:
* In the ``[database]`` section, configure database access:
.. code-block:: ini
[database]
...
connection = mysql+pymysql://aodh:AODH_DBPASS@controller/aodh
Replace ``AODH_DBPASS`` with the password you chose for the
Telemetry Alarming module database. You must escape special characters
such as ':', '/', '+', and '@' in the connection string in accordance
with `RFC2396 <https://www.ietf.org/rfc/rfc2396.txt>`_.
* In the ``[DEFAULT]`` and ``[oslo_messaging_rabbit]`` sections,
configure ``RabbitMQ`` message queue access:
.. code-block:: ini
[DEFAULT]
...
rpc_backend = rabbit
[oslo_messaging_rabbit]
...
rabbit_host = controller
rabbit_userid = openstack
rabbit_password = RABBIT_PASS
Replace ``RABBIT_PASS`` with the password you chose for the
``openstack`` account in ``RabbitMQ``.
* In the ``[DEFAULT]`` and ``[keystone_authtoken]`` sections,
configure Identity service access:
.. code-block:: ini
[DEFAULT]
...
auth_strategy = keystone
[keystone_authtoken]
...
auth_uri = http://controller:5000
auth_url = http://controller:35357
memcached_servers = controller:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = aodh
password = AODH_PASS
Replace ``AODH_PASS`` with the password you chose for
the ``aodh`` user in the Identity service.
* In the ``[service_credentials]`` section, configure service credentials:
.. code-block:: ini
[service_credentials]
...
os_auth_url = http://controller:5000/v2.0
os_username = aodh
os_tenant_name = service
os_password = AODH_PASS
interface = internalURL
region_name = RegionOne
Replace ``AODH_PASS`` with the password you chose for
the ``aodh`` user in the Identity service.
.. todo:
Workaround for https://bugs.launchpad.net/ubuntu/+source/aodh/+bug/1513599.
.. only:: ubuntu
3. Edit the ``/etc/aodh/api_paste.ini`` file and modify the
``[filter:authtoken]`` section as follows:
.. code-block:: ini
[filter:authtoken]
...
oslo_config_project = aodh
Finalize installation
~~~~~~~~~~~~~~~~~~~~~
.. only:: obs
#. Start the Telemetry Alarming services and configure them to start
when the system boots:
.. code-block:: console
# systemctl enable openstack-aodh-api.service \
openstack-aodh-evaluator.service \
openstack-aodh-notifier.service \
openstack-aodh-listener.service
# systemctl start openstack-aodh-api.service \
openstack-aodh-evaluator.service \
openstack-aodh-notifier.service \
openstack-aodh-listener.service
.. only:: rdo
* Start the Alarming services and configure them to start when the system
boots:
.. code-block:: console
# systemctl enable openstack-aodh-api.service \
openstack-aodh-evaluator.service \
openstack-aodh-notifier.service \
openstack-aodh-listener.service
# systemctl start openstack-aodh-api.service \
openstack-aodh-evaluator.service \
openstack-aodh-notifier.service \
openstack-aodh-listener.service
.. only:: ubuntu
* Restart the Alarming services:
.. code-block:: console
# service aodh-api restart
# service aodh-evaluator restart
# service aodh-notifier restart
# service aodh-listener restart