Ubuntu 18.04
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OpenStack Queens : Configure Ceilometer#1 (Network Node)
2018/06/20
 
Install OpenStack Telemetry Service (Ceilometer).
This example is based on the emvironment like follows.
 ------------+---------------------------+---------------------------+------------
             |                           |                           |
         eth0|10.0.0.30              eth0|10.0.0.50              eth0|10.0.0.51
 +-----------+-----------+   +-----------+-----------+   +-----------+-----------+
 |    [ Control Node ]   |   |    [ Network Node ]   |   |    [ Compute Node ]   |
 |                       |   |                       |   |                       |
 |  MariaDB    RabbitMQ  |   |      Linux Bridge     |   |        Libvirt        |
 |  Memcached  httpd     |   |        L2_Agent       |   |     Nova_Compute      |
 |  Keystone   Glance    |   |        L3_Agent       |   |      Linux Bridge     |
 |  Nova_API  Cinder_API |   |     Metadata_Agent    |   |        L2_Agent       |
 |  Neutron_Server       |   |     Cinder_Volume     |   |   Ceilometer_Compute  |
 |  Metadata_Agent       |   |        Heat_API       |   |                       |
 |                       |   |      Heat Engine      |   |                       |
 |                       |   |    Gnocchi  httpd     |   |                       |
 |                       |   |   Ceilometer_Central  |   |                       |
 +-----------------------+   +-----------------------+   +-----------------------+

[1]
[2] Add users and others for Ceilometer in Keystone.
# add ceilometer user (set in service project)

root@dlp ~(keystone)#
openstack user create --domain default --project service --password servicepassword ceilometer

+---------------------+----------------------------------+
| Field               | Value                            |
+---------------------+----------------------------------+
| default_project_id  | fa8bf7aca73e44cb9bc2c9f42859857e |
| domain_id           | default                          |
| enabled             | True                             |
| id                  | 78ed5a8c14194fcba73206f1c0b0174f |
| name                | ceilometer                       |
| options             | {}                               |
| password_expires_at | None                             |
+---------------------+----------------------------------+

# add ceilometer user in admin role

root@dlp ~(keystone)#
openstack role add --project service --user ceilometer admin
# add service entry for ceilometer

root@dlp ~(keystone)#
openstack service create --name ceilometer --description "OpenStack Telemetry Service" metering

+-------------+----------------------------------+
| Field       | Value                            |
+-------------+----------------------------------+
| description | OpenStack Telemetry Service      |
| enabled     | True                             |
| id          | 74e0d582a0ce4490a74d8da8990477ea |
| name        | ceilometer                       |
| type        | metering                         |
+-------------+----------------------------------+
[3] Install Ceilometer.
root@network:~#
apt -y install ceilometer-agent-central ceilometer-agent-notification python-ceilometerclient
[4] Configure Ceilometer.
root@network:~#
mv /etc/ceilometer/ceilometer.conf /etc/ceilometer/ceilometer.conf.org

root@network:~#
vi /etc/ceilometer/ceilometer.conf
# create new

[DEFAULT]
# RabbitMQ connection info
transport_url = rabbit://openstack:password@10.0.0.30

[api]
auth_mode = keystone

[dispatcher_gnocchi]
filter_service_activity = False

# Keystone auth info (with gnocchi user)
[keystone_authtoken]
www_authenticate_uri = http://10.0.0.30:5000
auth_url = http://10.0.0.30:5000
memcached_servers = 10.0.0.30:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = gnocchi
password = servicepassword

# Keystone auth info (with ceilometer user)
[service_credentials]
auth_url = http://10.0.0.30:5000
memcached_servers = 10.0.0.30:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = ceilometer
password = servicepassword

root@network:~#
chmod 640 /etc/ceilometer/ceilometer.conf

root@network:~#
chgrp ceilometer /etc/ceilometer/ceilometer.conf

root@network:~#
su -s /bin/bash ceilometer -c "ceilometer-upgrade"

root@network:~#
systemctl restart ceilometer-agent-central ceilometer-agent-notification

root@network:~#
systemctl enable ceilometer-agent-central ceilometer-agent-notification

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