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Install and configure for Ubuntu

This section describes how to install and configure the Telemetry service, code-named ceilometer, on the controller node.

This section assumes that you already have a working OpenStack environment with at least the following components installed: Compute, Image Service, Identity.

Prerequisites

Before you install and configure the Telemetry service, you must create a database, service credentials, and API endpoints. However, unlike other services, the Telemetry service uses a NoSQL database. See environment-nosql-database-ubuntu to install and configure MongoDB before proceeding further.

Create the ceilometer database:

# mongo --host controller --eval '
  db = db.getSiblingDB("ceilometer");
  db.addUser({user: "ceilometer",
  pwd: "CEILOMETER_DBPASS",
  roles: [ "readWrite", "dbAdmin" ]})'

  MongoDB shell version: 2.4.x
  connecting to: controller:27017/test
  {
   "user" : "ceilometer",
   "pwd" : "72f25aeee7ad4be52437d7cd3fc60f6f",
   "roles" : [
    "readWrite",
    "dbAdmin"
    ],
   "_id" : ObjectId("5489c22270d7fad1ba631dc3")
  }

Replace CEILOMETER_DBPASS with a suitable password.

Note

If the command fails saying you are not authorized to insert a user, you may need to temporarily comment out the auth option in the /etc/mongodb.conf file, restart the MongoDB service using service mongodb restart, and try calling the command again.

Install and configure components

Install the packages:

# apt-get install ceilometer-api ceilometer-collector \
  ceilometer-agent-central ceilometer-agent-notification \
  python-ceilometerclient

Configure the Apache HTTP server

Create the /etc/apache2/sites-available/wsgi-ceilometer.conf file with the following content:

Listen 8777

<VirtualHost *:8777>
    WSGIDaemonProcess ceilometer-api processes=2 threads=10 user=ceilometer group=ceilometer display-name=%{GROUP}
    WSGIProcessGroup ceilometer-api
    WSGIScriptAlias / "/var/www/cgi-bin/ceilometer/app"
    WSGIApplicationGroup %{GLOBAL}
    ErrorLog /var/log/apache2/ceilometer_error.log
    CustomLog /var/log/apache2/ceilometer_access.log combined
</VirtualHost>

WSGISocketPrefix /var/run/apache2

Enable the Telemetry service virtual hosts:
```
# a2ensite ceilometer
```

Finalize installation

Reload the Apache HTTP server:
```
# service apache2 reload
```

Restart the Telemetry services:

# service ceilometer-agent-central restart
# service ceilometer-agent-notification restart
# service ceilometer-collector restart

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